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428
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1 /* Tabs Widget for XEmacs.
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2 Copyright (C) 1999 Edward A. Falk
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Synched up with: Tabs.c 1.23 */
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22
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23 /*
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24 * Tabs.c - Index Tabs composite widget
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25 *
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26 * Author: Edward A. Falk
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27 * falk@falconer.vip.best.com
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28 *
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29 * Date: July 29, 1997
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30 *
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31 *
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32 * Overall layout of this widget is as follows:
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33 *
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34 * ________ ,---------. _________
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35 * | label || Label || Label | \ tabs
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36 * |________|| ||_________| /
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37 * |+----------------------------+| \
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38 * || || |
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39 * || child widget window || > frame
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40 * |+----------------------------+| |
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41 * +------------------------------+ /
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42 *
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43 * The height of the tabs includes the shadow width, top and bottom
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44 * margins, and the height of the text.
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45 *
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46 * The height of the frame includes the top and bottom shadow width and the
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47 * size of the child widget window.
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48 *
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49 * The tabs overlap the frame and each other vertically by the shadow
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50 * width, so that when the topmost tab is drawn, it obliterates part of
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51 * the frame.
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52 */
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53
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54 /* TODO: min child height = tab height
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55 *
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56 */
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57
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58 #include <config.h>
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59 #include <stdio.h>
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60
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61 #include <X11/Xlib.h>
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62 #include <X11/IntrinsicP.h>
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63 #include <X11/StringDefs.h>
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64 #include "../src/xmu.h"
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65 #include "xlwtabsP.h"
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66 #include "xlwgcs.h"
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67
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68 #define MIN_WID 10
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69 #define MIN_HGT 10
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70 #define INDENT 3 /* tabs indented from edge by this much */
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71 #define SPACING 0 /* distance between tabs */
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72 #define SHADWID 1 /* default shadow width */
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73 #define TABDELTA 2 /* top tab grows this many pixels */
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74 #define TABLDELTA 2 /* top tab label offset this many pixels */
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75
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76
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77 /****************************************************************
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78 *
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79 * IndexTabs Resources
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80 *
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81 ****************************************************************/
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82
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83 static char defaultTranslations[] = "\
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84 <BtnUp>: select() \n\
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85 <FocusIn>: highlight() \n\
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86 <FocusOut>: unhighlight() \n\
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87 <Key>Page_Up: page(up) \n\
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88 <Key>KP_Page_Up: page(up) \n\
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89 <Key>Prior: page(up) \n\
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90 <Key>KP_Prior: page(up) \n\
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91 <Key>Page_Down: page(down) \n\
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92 <Key>KP_Page_Down: page(down) \n\
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93 <Key>Next: page(down) \n\
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94 <Key>KP_Next: page(down) \n\
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95 <Key>Home: page(home) \n\
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96 <Key>KP_Home: page(home) \n\
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97 <Key>End: page(end) \n\
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98 <Key>KP_End: page(end) \n\
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99 <Key>Up: highlight(up) \n\
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100 <Key>KP_Up: highlight(up) \n\
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101 <Key>Down: highlight(down) \n\
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102 <Key>KP_Down: highlight(down) \n\
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103 <Key> : page(select) \n\
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104 " ;
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105
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106 static char accelTable[] = " #augment\n\
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107 <Key>Page_Up: page(up) \n\
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108 <Key>KP_Page_Up: page(up) \n\
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109 <Key>Prior: page(up) \n\
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110 <Key>KP_Prior: page(up) \n\
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111 <Key>Page_Down: page(down) \n\
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112 <Key>KP_Page_Down: page(down) \n\
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113 <Key>Next: page(down) \n\
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114 <Key>KP_Next: page(down) \n\
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115 <Key>Home: page(home) \n\
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116 <Key>KP_Home: page(home) \n\
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117 <Key>End: page(end) \n\
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118 <Key>KP_End: page(end) \n\
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119 <Key>Up: highlight(up) \n\
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120 <Key>KP_Up: highlight(up) \n\
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121 <Key>Down: highlight(down) \n\
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122 <Key>KP_Down: highlight(down) \n\
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123 <Key> : page(select) \n\
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124 " ;
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125 static XtAccelerators defaultAccelerators ;
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126
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127 #define offset(field) XtOffsetOf(TabsRec, tabs.field)
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128 static XtResource resources[] = {
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129
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130 {XtNselectInsensitive, XtCSelectInsensitive, XtRBoolean, sizeof(Boolean),
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131 offset(selectInsensitive), XtRImmediate, (XtPointer) True},
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132 {XtNfont, XtCFont, XtRFontStruct, sizeof(XFontStruct *),
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133 offset(font), XtRString, (XtPointer) XtDefaultFont},
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134 {XtNinternalWidth, XtCWidth, XtRDimension, sizeof(Dimension),
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135 offset(internalWidth), XtRImmediate, (XtPointer)4 },
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136 {XtNinternalHeight, XtCHeight, XtRDimension, sizeof(Dimension),
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137 offset(internalHeight), XtRImmediate, (XtPointer)4 },
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138 {XtNborderWidth, XtCBorderWidth, XtRDimension, sizeof(Dimension),
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139 XtOffsetOf(RectObjRec,rectangle.border_width), XtRImmediate, (XtPointer)0},
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140 {XtNtopWidget, XtCTopWidget, XtRWidget, sizeof(Widget),
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141 offset(topWidget), XtRImmediate, NULL},
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142 {XtNcallback, XtCCallback, XtRCallback, sizeof(XtPointer),
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143 offset(callbacks), XtRCallback, NULL},
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144 {XtNpopdownCallback, XtCCallback, XtRCallback, sizeof(XtPointer),
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145 offset(popdownCallbacks), XtRCallback, NULL},
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146 {XtNbeNiceToColormap, XtCBeNiceToColormap, XtRBoolean, sizeof(Boolean),
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147 offset(be_nice_to_cmap), XtRImmediate, (XtPointer) True},
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148 {XtNtopShadowContrast, XtCTopShadowContrast, XtRInt, sizeof(int),
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149 offset(top_shadow_contrast), XtRImmediate, (XtPointer) 20},
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150 {XtNbottomShadowContrast, XtCBottomShadowContrast, XtRInt, sizeof(int),
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151 offset(bot_shadow_contrast), XtRImmediate, (XtPointer) 40},
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152 {XtNinsensitiveContrast, XtCInsensitiveContrast, XtRInt, sizeof(int),
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153 offset(insensitive_contrast), XtRImmediate, (XtPointer) 33},
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154 {XtNaccelerators, XtCAccelerators, XtRAcceleratorTable,sizeof(XtTranslations),
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155 XtOffsetOf(TabsRec,core.accelerators), XtRString, accelTable},
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156 };
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157 #undef offset
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158
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159
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160
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161 /* constraint resources */
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162
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163 #define offset(field) XtOffsetOf(TabsConstraintsRec, tabs.field)
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164 static XtResource tabsConstraintResources[] = {
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165 {XtNtabLabel, XtCLabel, XtRString, sizeof(String),
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166 offset(label), XtRString, NULL},
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167 {XtNtabLeftBitmap, XtCLeftBitmap, XtRBitmap, sizeof(Pixmap),
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168 offset(left_bitmap), XtRImmediate, None},
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169 {XtNtabForeground, XtCForeground, XtRPixel, sizeof(Pixel),
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170 offset(foreground), XtRString, (XtPointer) XtDefaultForeground},
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171 {XtNresizable, XtCResizable, XtRBoolean, sizeof(Boolean),
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172 offset(resizable), XtRImmediate, (XtPointer) True},
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173 } ;
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174 #undef offset
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175
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176
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177
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178
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179 #if !NeedFunctionPrototypes
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180
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181 /* FORWARD REFERENCES: */
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182
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183 /* member functions */
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184
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185 static void TabsClassInit();
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186 static void TabsInit();
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187 static void TabsResize();
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188 static void TabsExpose();
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189 static void TabsDestroy();
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190 static void TabsRealize();
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191 static Boolean TabsSetValues();
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192 static XtGeometryResult TabsQueryGeometry();
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193 static XtGeometryResult TabsGeometryManager();
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194 static void TabsChangeManaged();
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195 static void TabsConstraintInitialize() ;
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196 static Boolean TabsConstraintSetValues() ;
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197
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198 /* action procs */
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199
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200 static void TabsSelect() ;
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201 static void TabsPage() ;
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202 static void TabsHighlight() ;
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203 static void TabsUnhighlight() ;
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204
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205 /* internal privates */
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206
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207 static void TabsAllocGCs() ; /* get rendering GCs */
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208 static void TabsFreeGCs() ; /* return rendering GCs */
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209 static void DrawTabs() ; /* draw all tabs */
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210 static void DrawTab() ; /* draw one index tab */
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211 static void DrawFrame() ; /* draw frame around contents */
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212 static void DrawTrim() ; /* draw trim around a tab */
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213 static void DrawBorder() ; /* draw border */
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214 static void DrawHighlight() ; /* draw highlight */
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215 static void UndrawTab() ; /* undraw interior of a tab */
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216 static void TabWidth() ; /* recompute tab size */
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217 static void GetPreferredSizes() ; /* query all children for their sizes */
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218 static void MaxChild() ; /* find max preferred child size */
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219 static int PreferredSize() ; /* compute preferred size */
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220 static int PreferredSize2() ; /* compute preferred size */
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221 static int PreferredSize3() ; /* compute preferred size */
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222 static void MakeSizeRequest() ; /* try to change size */
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223 static void getBitmapInfo() ;
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224 static int TabLayout() ; /* lay out tabs */
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225 static void TabsShuffleRows() ; /* bring current tab to bottom row */
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226
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227 static void TabsAllocFgGC() ;
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228 static void TabsAllocGreyGC() ;
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229
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230 #else
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231
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232 static void TabsClassInit(void) ;
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233 static void TabsInit( Widget req, Widget new, ArgList, Cardinal *nargs) ;
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234 static void TabsConstraintInitialize(Widget, Widget, ArgList, Cardinal *) ;
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235 static void TabsRealize(Widget, Mask *, XSetWindowAttributes *) ;
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236 static void TabsDestroy( Widget w) ;
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237 static void TabsResize( Widget w) ;
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238 static void TabsExpose( Widget w, XEvent *event, Region region) ;
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239 static Boolean TabsSetValues(Widget, Widget, Widget, ArgList, Cardinal *) ;
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240 static Boolean TabsConstraintSetValues(Widget, Widget, Widget,
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241 ArgList, Cardinal *) ;
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242 static XtGeometryResult TabsQueryGeometry(Widget,
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243 XtWidgetGeometry *, XtWidgetGeometry *) ;
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244 static XtGeometryResult TabsGeometryManager(Widget,
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245 XtWidgetGeometry *, XtWidgetGeometry *) ;
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246 static void TabsChangeManaged( Widget w) ;
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247
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248 static void TabsSelect(Widget, XEvent *, String *, Cardinal *) ;
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249 static void TabsPage(Widget, XEvent *, String *, Cardinal *) ;
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250 static void TabsHighlight(Widget, XEvent *, String *, Cardinal *) ;
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251 static void TabsUnhighlight(Widget, XEvent *, String *, Cardinal *) ;
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252
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253 static void DrawTabs( TabsWidget tw, Bool labels) ;
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254 static void DrawTab( TabsWidget tw, Widget child, Bool labels) ;
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255 static void DrawFrame( TabsWidget tw) ;
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256 static void DrawTrim( TabsWidget, int x, int y,
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257 int wid, int hgt, Bool bottom, Bool undraw) ;
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258 static void DrawBorder( TabsWidget tw, Widget child, Bool undraw) ;
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259 static void DrawHighlight( TabsWidget tw, Widget child, Bool undraw) ;
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260 static void UndrawTab( TabsWidget tw, Widget child) ;
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261
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262 static void TabWidth( Widget w) ;
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263 static int TabLayout( TabsWidget, int wid, int hgt, Dimension *r_hgt,
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264 Bool query_only) ;
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265 static void GetPreferredSizes(TabsWidget) ;
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266 static void MaxChild(TabsWidget) ;
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267 static void TabsShuffleRows( TabsWidget tw) ;
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268 static int PreferredSize( TabsWidget,
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269 Dimension *reply_width, Dimension *reply_height,
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270 Dimension *reply_cw, Dimension *reply_ch) ;
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271 static int PreferredSize2( TabsWidget, int cw, int ch,
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272 Dimension *rw, Dimension *rh) ;
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273 static int PreferredSize3( TabsWidget, int wid, int hgt,
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274 Dimension *rw, Dimension *rh) ;
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275 static void MakeSizeRequest(TabsWidget) ;
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276
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277 static void TabsAllocGCs(TabsWidget) ;
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278 static void TabsFreeGCs(TabsWidget) ;
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279 static void getBitmapInfo( TabsWidget tw, TabsConstraints tab) ;
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280 static void TabsAllocFgGC( TabsWidget tw) ;
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281 static void TabsAllocGreyGC( TabsWidget tw) ;
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282
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283 #endif
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284
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285 #define AddRect(i,xx,yy,w,h) \
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286 do{rects[(i)].x=(xx); rects[i].y=(yy); \
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287 rects[i].width=(w); rects[i].height=(h);}while(0)
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288
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289 static XtActionsRec actionsList[] =
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290 {
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291 {"select", TabsSelect},
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292 {"page", TabsPage},
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293 {"highlight", TabsHighlight},
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294 {"unhighlight", TabsUnhighlight},
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295 } ;
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296
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297
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298 /****************************************************************
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299 *
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300 * Full class record constant
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301 *
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302 ****************************************************************/
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303
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304 #ifndef NEED_MOTIF
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305 #define SuperClass (&constraintClassRec)
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306 #else
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307 #define SuperClass (&xmManagerClassRec)
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308 #endif
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309
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310 TabsClassRec tabsClassRec = {
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311 {
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312 /* core_class fields */
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313 /* superclass */ (WidgetClass) SuperClass,
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314 /* class_name */ "Tabs",
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315 /* widget_size */ sizeof(TabsRec),
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316 /* class_initialize */ TabsClassInit,
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317 /* class_part_init */ NULL, /* TODO? */
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318 /* class_inited */ FALSE,
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319 /* initialize */ TabsInit,
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320 /* initialize_hook */ NULL,
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321 /* realize */ TabsRealize,
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322 /* actions */ actionsList,
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323 /* num_actions */ XtNumber(actionsList),
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324 /* resources */ resources,
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325 /* num_resources */ XtNumber(resources),
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326 /* xrm_class */ NULLQUARK,
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327 /* compress_motion */ TRUE,
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328 /* compress_exposure */ TRUE,
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329 /* compress_enterleave*/ TRUE,
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330 /* visible_interest */ FALSE,
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331 /* destroy */ TabsDestroy,
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332 /* resize */ TabsResize,
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333 /* expose */ TabsExpose,
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334 /* set_values */ TabsSetValues,
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335 /* set_values_hook */ NULL,
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336 /* set_values_almost */ XtInheritSetValuesAlmost,
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337 /* get_values_hook */ NULL,
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338 /* accept_focus */ NULL,
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339 /* version */ XtVersion,
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340 /* callback_private */ NULL,
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341 /* tm_table */ defaultTranslations,
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342 /* query_geometry */ TabsQueryGeometry,
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343 /* display_accelerator*/ XtInheritDisplayAccelerator,
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344 /* extension */ NULL
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345 },
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346 {
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347 /* composite_class fields */
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348 /* geometry_manager */ TabsGeometryManager,
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349 /* change_managed */ TabsChangeManaged,
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350 /* insert_child */ XtInheritInsertChild, /* TODO? */
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351 /* delete_child */ XtInheritDeleteChild, /* TODO? */
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352 /* extension */ NULL
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353 },
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354 {
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355 /* constraint_class fields */
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356 /* subresources */ tabsConstraintResources,
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357 /* subresource_count */ XtNumber(tabsConstraintResources),
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358 /* constraint_size */ sizeof(TabsConstraintsRec),
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359 /* initialize */ TabsConstraintInitialize,
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360 /* destroy */ NULL,
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361 /* set_values */ TabsConstraintSetValues,
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362 /* extension */ NULL,
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363 },
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364 #ifdef NEED_MOTIF
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365 /* Manager Class fields */
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366 {
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367 /* translations */ NULL,
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368 /* syn_resources */ NULL,
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369 /* num_syn_resources */ 0,
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370 /* syn_constraint_resources */ NULL,
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371 /* num_syn_constraint_resources */ 0,
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372 /* parent_process */ XmInheritParentProcess,
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373 /* extension */ NULL
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374 },
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375 #endif
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376 {
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377 /* Tabs class fields */
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378 /* extension */ NULL,
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379 }
|
|
|
380 };
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|
|
381
|
|
|
382 WidgetClass tabsWidgetClass = (WidgetClass)&tabsClassRec;
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|
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383
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384
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385
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386 #ifdef DEBUG
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|
|
387 #ifdef __STDC__
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|
|
388 #define assert(e) \
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|
|
389 if(!(e)) fprintf(stderr,"yak! %s at %s:%d\n",#e,__FILE__,__LINE__)
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|
|
390 #else
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|
|
391 #define assert(e) \
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|
|
392 if(!(e)) fprintf(stderr,"yak! e at %s:%d\n",__FILE__,__LINE__)
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|
|
393 #endif
|
|
|
394 #else
|
|
|
395 #define assert(e)
|
|
|
396 #endif
|
|
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397
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|
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398
|
|
|
399
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400
|
|
|
401 /****************************************************************
|
|
|
402 *
|
|
|
403 * Member Procedures
|
|
|
404 *
|
|
|
405 ****************************************************************/
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|
|
406
|
|
|
407 static void
|
|
|
408 TabsClassInit(void)
|
|
|
409 {
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|
|
410 defaultAccelerators = XtParseAcceleratorTable(accelTable) ;
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|
|
411 /* TODO: register converter for labels? */
|
|
|
412 }
|
|
|
413
|
|
|
414
|
|
|
415
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|
416 /* Init a newly created tabs widget. Compute height of tabs
|
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|
417 * and optionally compute size of widget. */
|
|
|
418
|
|
|
419 /* ARGSUSED */
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|
|
420
|
|
|
421 static void
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|
|
422 TabsInit(Widget request, Widget new, ArgList args, Cardinal *num_args)
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|
|
423 {
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|
|
424 TabsWidget newTw = (TabsWidget)new;
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425
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|
426 newTw->tabs.numRows = 0 ;
|
|
|
427 newTw->tabs.displayChildren = 0;
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|
|
428
|
|
|
429 GetPreferredSizes(newTw) ;
|
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|
430
|
|
|
431 /* height is easy, it's the same for all tabs:
|
|
|
432 * TODO: font height + height of tallest bitmap.
|
|
|
433 */
|
|
|
434 newTw->tabs.tab_height = 2 * newTw->tabs.internalHeight + SHADWID ;
|
|
|
435
|
|
|
436 if( newTw->tabs.font != NULL )
|
|
|
437 newTw->tabs.tab_height += newTw->tabs.font->max_bounds.ascent +
|
|
|
438 newTw->tabs.font->max_bounds.descent ;
|
|
|
439
|
|
|
440 /* GC allocation is deferred until XtRealize() */
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|
|
441
|
|
|
442 /* if size not explicitly set, set it to our preferred size now. */
|
|
|
443
|
|
|
444 if( request->core.width == 0 || request->core.height == 0 )
|
|
|
445 {
|
|
|
446 Dimension w,h ;
|
|
|
447 PreferredSize(newTw, &w, &h, NULL,NULL) ;
|
|
|
448 if( request->core.width == 0 ) new->core.width = w ;
|
|
|
449 if( request->core.height == 0 ) new->core.height = h ;
|
|
|
450 XtClass(new)->core_class.resize(new) ;
|
|
|
451 }
|
|
|
452
|
|
|
453 /* defer GC allocation, etc., until Realize() time. */
|
|
|
454 newTw->tabs.foregroundGC =
|
|
|
455 newTw->tabs.backgroundGC =
|
|
|
456 newTw->tabs.greyGC =
|
|
|
457 newTw->tabs.topGC =
|
|
|
458 newTw->tabs.botGC = None ;
|
|
|
459
|
|
|
460 newTw->tabs.grey50 = None ;
|
|
|
461
|
|
|
462 newTw->tabs.needs_layout = False ;
|
|
|
463
|
|
|
464 newTw->tabs.hilight = NULL ;
|
|
|
465
|
|
|
466 #ifdef NEED_MOTIF
|
|
|
467 newTw->manager.navigation_type = XmTAB_GROUP ;
|
|
|
468 newTw->manager.traversal_on = True ;
|
|
|
469 #endif
|
|
|
470 }
|
|
|
471
|
|
|
472
|
|
|
473 /* Init the constraint part of a new tab child. Compute the
|
|
|
474 * size of the tab.
|
|
|
475 */
|
|
|
476 /* ARGSUSED */
|
|
|
477 static void
|
|
|
478 TabsConstraintInitialize(Widget request, Widget new,
|
|
|
479 ArgList args, Cardinal *num_args)
|
|
|
480 {
|
|
|
481 TabsConstraints tab = (TabsConstraints) new->core.constraints ;
|
|
|
482 tab->tabs.greyAlloc = False ; /* defer allocation of pixel */
|
|
|
483 tab->tabs.queried = False ; /* defer size query */
|
|
|
484
|
|
|
485 getBitmapInfo((TabsWidget)XtParent(new), tab) ;
|
|
|
486 TabWidth(new) ;
|
|
|
487 }
|
|
|
488
|
|
|
489
|
|
|
490
|
|
|
491 /* Called when tabs widget first realized. Create the window
|
|
|
492 * and allocate the GCs
|
|
|
493 */
|
|
|
494
|
|
|
495 static void
|
|
|
496 TabsRealize(Widget w, Mask *valueMask, XSetWindowAttributes *attributes)
|
|
|
497 {
|
|
|
498 TabsWidget tw = (TabsWidget) w;
|
|
|
499
|
|
|
500 attributes->bit_gravity = NorthWestGravity;
|
|
|
501 *valueMask |= CWBitGravity;
|
|
|
502
|
|
|
503 SuperClass->core_class.realize(w, valueMask, attributes);
|
|
|
504
|
|
|
505 TabsAllocGCs(tw) ;
|
|
|
506 }
|
|
|
507
|
|
|
508
|
|
|
509
|
|
|
510 static void
|
|
|
511 TabsDestroy(Widget w)
|
|
|
512 {
|
|
|
513 TabsFreeGCs((TabsWidget)w) ;
|
|
|
514 }
|
|
|
515
|
|
|
516
|
|
|
517 /* Parent has resized us. This will require that the tabs be
|
|
|
518 * laid out again.
|
|
|
519 */
|
|
|
520
|
|
|
521 static void
|
|
|
522 TabsResize(Widget w)
|
|
|
523 {
|
|
|
524 TabsWidget tw = (TabsWidget) w;
|
|
|
525 int i ;
|
|
|
526 int num_children = tw->composite.num_children ;
|
|
|
527 Widget *childP ;
|
|
|
528 TabsConstraints tab ;
|
|
|
529 Dimension cw,ch,bw ;
|
|
|
530
|
|
|
531 /* Our size has now been dictated by the parent. Lay out the
|
|
|
532 * tabs, lay out the frame, lay out the children. Remember
|
|
|
533 * that the tabs overlap each other and the frame by shadowWidth.
|
|
|
534 * Also, the top tab is larger than the others, so if there's only
|
|
|
535 * one row, the widget must be made taller to accommodate this.
|
|
|
536 *
|
|
|
537 * Once the tabs are laid out, if there is more than one
|
|
|
538 * row, we may need to shuffle the rows to bring the top tab
|
|
|
539 * to the bottom row.
|
|
|
540 */
|
|
|
541
|
|
|
542 if( num_children > 0 && tw->composite.children != NULL )
|
|
|
543 {
|
|
|
544 /* Loop through the tabs and assign rows & x positions */
|
|
|
545 (void) TabLayout(tw, tw->core.width, tw->core.height, NULL, False) ;
|
|
|
546 num_children = tw->tabs.displayChildren;
|
|
|
547
|
|
|
548 /* assign a top widget, bring it to bottom row. */
|
|
|
549 TabsShuffleRows(tw) ;
|
|
|
550
|
|
|
551 /* now assign child positions & sizes. Positions are all the
|
|
|
552 * same: just inside the frame. Sizes are also all the same.
|
|
|
553 */
|
|
|
554
|
|
|
555 tw->tabs.child_width = cw = tw->core.width - 2 * SHADWID ;
|
|
|
556 tw->tabs.child_height = ch =
|
|
|
557 tw->core.height - tw->tabs.tab_total - 2 * SHADWID ;
|
|
|
558
|
|
|
559
|
|
|
560 for(i=0, childP=tw->composite.children;
|
|
|
561 i < num_children;
|
|
|
562 ++i, ++childP)
|
|
|
563 if( XtIsManaged(*childP) )
|
|
|
564 {
|
|
|
565 tab = (TabsConstraints) (*childP)->core.constraints ;
|
|
|
566 bw = tab->tabs.bwid ;
|
|
|
567 XtConfigureWidget(*childP, SHADWID,tw->tabs.tab_total+SHADWID,
|
|
|
568 cw-bw*2,ch-bw*2, bw) ;
|
|
|
569 }
|
|
|
570 if( XtIsRealized(w) )
|
|
|
571 XClearWindow(XtDisplay((Widget)tw), XtWindow((Widget)tw)) ;
|
|
|
572 }
|
|
|
573
|
|
|
574 tw->tabs.needs_layout = False ;
|
|
|
575 } /* Resize */
|
|
|
576
|
|
|
577
|
|
|
578
|
|
|
579 /* Redraw entire Tabs widget */
|
|
|
580
|
|
|
581 /* ARGSUSED */
|
|
|
582 static void
|
|
|
583 TabsExpose(Widget w, XEvent *event, Region region)
|
|
|
584 {
|
|
|
585 TabsWidget tw = (TabsWidget) w;
|
|
|
586
|
|
|
587 if( tw->tabs.needs_layout )
|
|
|
588 XtClass(w)->core_class.resize(w) ;
|
|
|
589
|
|
|
590 DrawTabs(tw, True) ;
|
|
|
591 }
|
|
|
592
|
|
|
593
|
|
|
594 /* Called when any Tabs widget resources are changed. */
|
|
|
595
|
|
|
596 /* ARGSUSED */
|
|
|
597 static Boolean
|
|
|
598 TabsSetValues(Widget current, Widget request, Widget new,
|
|
|
599 ArgList args, Cardinal *num_args)
|
|
|
600 {
|
|
|
601 TabsWidget curtw = (TabsWidget) current ;
|
|
|
602 TabsWidget tw = (TabsWidget) new ;
|
|
|
603 Boolean needRedraw = False ;
|
|
|
604 Widget *childP ;
|
|
|
605 int i ;
|
|
|
606
|
|
|
607
|
|
|
608 if( tw->tabs.font != curtw->tabs.font ||
|
|
|
609 tw->tabs.internalWidth != curtw->tabs.internalWidth ||
|
|
|
610 tw->tabs.internalHeight != curtw->tabs.internalHeight )
|
|
|
611 {
|
|
|
612 tw->tabs.tab_height = 2 * tw->tabs.internalHeight + SHADWID ;
|
|
|
613
|
|
|
614 if( tw->tabs.font != NULL )
|
|
|
615 tw->tabs.tab_height += tw->tabs.font->max_bounds.ascent +
|
|
|
616 tw->tabs.font->max_bounds.descent ;
|
|
|
617
|
|
|
618 /* Tab size has changed. Resize all tabs and request a new size */
|
|
|
619 for(i=0, childP=tw->composite.children;
|
|
|
620 i < tw->composite.num_children;
|
|
|
621 ++i, ++childP)
|
|
|
622 if( XtIsManaged(*childP) )
|
|
|
623 TabWidth(*childP) ;
|
|
|
624 PreferredSize(tw, &tw->core.width, &tw->core.height, NULL,NULL) ;
|
|
|
625 needRedraw = True ;
|
|
|
626 tw->tabs.needs_layout = True ;
|
|
|
627 }
|
|
|
628
|
|
|
629 /* TODO: if any color changes, need to recompute GCs and redraw */
|
|
|
630
|
|
|
631 if( tw->core.background_pixel != curtw->core.background_pixel ||
|
|
|
632 tw->core.background_pixmap != curtw->core.background_pixmap )
|
|
|
633 if( XtIsRealized(new) )
|
|
|
634 {
|
|
|
635 TabsFreeGCs(tw) ;
|
|
|
636 TabsAllocGCs(tw) ;
|
|
|
637 needRedraw = True ;
|
|
|
638 }
|
|
|
639
|
|
|
640 if( tw->core.sensitive != curtw->core.sensitive )
|
|
|
641 needRedraw = True ;
|
|
|
642
|
|
|
643 /* If top widget changes, need to change stacking order, redraw tabs.
|
|
|
644 * Window system will handle the redraws.
|
|
|
645 */
|
|
|
646
|
|
|
647 if( tw->tabs.topWidget != curtw->tabs.topWidget )
|
|
|
648 {
|
|
|
649 if( XtIsRealized(tw->tabs.topWidget) )
|
|
|
650 {
|
|
|
651 Widget w = tw->tabs.topWidget ;
|
|
|
652 TabsConstraints tab = (TabsConstraints) w->core.constraints ;
|
|
|
653
|
|
|
654 XRaiseWindow(XtDisplay(w), XtWindow(w)) ;
|
|
|
655 #ifdef NEED_MOTIF
|
|
|
656 XtVaSetValues(curtw->tabs.topWidget, XmNtraversalOn, False, 0) ;
|
|
|
657 XtVaSetValues(w, XmNtraversalOn, True, 0) ;
|
|
|
658 #endif
|
|
|
659
|
|
|
660 if( tab->tabs.row != tw->tabs.numRows-1 )
|
|
|
661 TabsShuffleRows(tw) ;
|
|
|
662
|
|
|
663 needRedraw = True ;
|
|
|
664 }
|
|
|
665 else
|
|
|
666 tw->tabs.needs_layout = True ;
|
|
|
667 }
|
|
|
668
|
|
|
669 return needRedraw ;
|
|
|
670 }
|
|
|
671
|
|
|
672
|
|
|
673 /* Called when any child constraint resources change. */
|
|
|
674
|
|
|
675 /* ARGSUSED */
|
|
|
676 static Boolean
|
|
|
677 TabsConstraintSetValues(Widget current, Widget request, Widget new,
|
|
|
678 ArgList args, Cardinal *num_args)
|
|
|
679 {
|
|
|
680 TabsWidget tw = (TabsWidget) XtParent(new) ;
|
|
|
681 TabsConstraints ctab = (TabsConstraints) current->core.constraints ;
|
|
|
682 TabsConstraints tab = (TabsConstraints) new->core.constraints ;
|
|
|
683
|
|
|
684
|
|
|
685 /* if label changes, need to re-layout the entire widget */
|
|
|
686 /* if foreground changes, need to redraw tab label */
|
|
|
687
|
|
|
688 /* TODO: only need resize of new bitmap has different dimensions
|
|
|
689 * from old bitmap.
|
|
|
690 */
|
|
|
691
|
|
|
692 if( tab->tabs.label != ctab->tabs.label || /* Tab size has changed. */
|
|
|
693 tab->tabs.left_bitmap != ctab->tabs.left_bitmap )
|
|
|
694 {
|
|
|
695 TabWidth(new) ;
|
|
|
696 tw->tabs.needs_layout = True ;
|
|
|
697
|
|
|
698 if( tab->tabs.left_bitmap != ctab->tabs.left_bitmap )
|
|
|
699 getBitmapInfo(tw, tab) ;
|
|
|
700
|
|
|
701 /* If there are no subclass ConstraintSetValues procedures remaining
|
|
|
702 * to be invoked, and if the preferred size has changed, ask
|
|
|
703 * for a resize.
|
|
|
704 */
|
|
|
705 if( XtClass((Widget)tw) == tabsWidgetClass )
|
|
|
706 MakeSizeRequest(tw) ;
|
|
|
707 }
|
|
|
708
|
|
|
709
|
|
|
710 /* The child widget itself never needs a redisplay, but the parent
|
|
|
711 * Tabs widget might.
|
|
|
712 */
|
|
|
713
|
|
|
714 if( XtIsRealized(new) )
|
|
|
715 {
|
|
|
716 if( tw->tabs.needs_layout ) {
|
|
|
717 XClearWindow(XtDisplay((Widget)tw), XtWindow((Widget)tw)) ;
|
|
|
718 XtClass(tw)->core_class.expose((Widget)tw,NULL,None) ;
|
|
|
719 }
|
|
|
720
|
|
|
721 else if( tab->tabs.foreground != ctab->tabs.foreground )
|
|
|
722 DrawTab(tw, new, True) ;
|
|
|
723 }
|
|
|
724
|
|
|
725 return False ;
|
|
|
726 }
|
|
|
727
|
|
|
728
|
|
|
729
|
|
|
730 /*
|
|
|
731 * Return preferred size. Happily accept anything >= our preferred size.
|
|
|
732 * (TODO: is that the right thing to do? Should we always return "almost"
|
|
|
733 * if offerred more than we need?)
|
|
|
734 */
|
|
|
735
|
|
|
736 static XtGeometryResult
|
|
|
737 TabsQueryGeometry(Widget w,
|
|
|
738 XtWidgetGeometry *intended, XtWidgetGeometry *preferred)
|
|
|
739 {
|
|
|
740 register TabsWidget tw = (TabsWidget)w ;
|
|
|
741 XtGeometryMask mode = intended->request_mode ;
|
|
|
742
|
|
|
743 preferred->request_mode = CWWidth | CWHeight ;
|
|
|
744 PreferredSize(tw, &preferred->width, &preferred->height, NULL,NULL) ;
|
|
|
745
|
|
|
746 if( (!(mode & CWWidth) || intended->width == w->core.width) &&
|
|
|
747 (!(mode & CWHeight) || intended->height == w->core.height) )
|
|
|
748 return XtGeometryNo ;
|
|
|
749
|
|
|
750 #ifdef COMMENT
|
|
|
751 if( (!(mode & CWWidth) || intended->width >= preferred->width) &&
|
|
|
752 (!(mode & CWHeight) || intended->height >= preferred->height) )
|
|
|
753 return XtGeometryYes;
|
|
|
754 #endif /* COMMENT */
|
|
|
755
|
|
|
756 return XtGeometryAlmost;
|
|
|
757 }
|
|
|
758
|
|
|
759
|
|
|
760
|
|
|
761 /*
|
|
|
762 * Geometry Manager; called when a child wants to be resized.
|
|
|
763 */
|
|
|
764
|
|
|
765 static XtGeometryResult
|
|
|
766 TabsGeometryManager(Widget w, XtWidgetGeometry *req, XtWidgetGeometry *reply)
|
|
|
767 {
|
|
|
768 TabsWidget tw = (TabsWidget) XtParent(w);
|
|
|
769 Dimension s = SHADWID ;
|
|
|
770 TabsConstraints tab = (TabsConstraints)w->core.constraints;
|
|
|
771 XtGeometryResult result ;
|
|
|
772
|
|
|
773 /* Position request always denied */
|
|
|
774
|
|
|
775 if( ((req->request_mode & CWX) && req->x != w->core.x) ||
|
|
|
776 ((req->request_mode & CWY) && req->y != w->core.y) ||
|
|
|
777 !tab->tabs.resizable )
|
|
|
778 return XtGeometryNo ;
|
|
|
779
|
|
|
780 /* Make all three fields in the request valid */
|
|
|
781 if( !(req->request_mode & CWWidth) )
|
|
|
782 req->width = w->core.width;
|
|
|
783 if( !(req->request_mode & CWHeight) )
|
|
|
784 req->height = w->core.height;
|
|
|
785 if( !(req->request_mode & CWBorderWidth) )
|
|
|
786 req->border_width = w->core.border_width;
|
|
|
787
|
|
|
788 if( req->width == w->core.width &&
|
|
|
789 req->height == w->core.height &&
|
|
|
790 req->border_width == w->core.border_width )
|
|
|
791 return XtGeometryNo ;
|
|
|
792
|
|
|
793 /* updated cached preferred size of the child */
|
|
|
794 tab->tabs.bwid = req->border_width ;
|
|
|
795 tab->tabs.wid = req->width + req->border_width * 2 ;
|
|
|
796 tab->tabs.hgt = req->height + req->border_width * 2 ;
|
|
|
797 MaxChild(tw) ;
|
|
|
798
|
|
|
799
|
|
|
800 /* Size changes must see if the new size can be accommodated.
|
|
|
801 * The Tabs widget keeps all of its children the same
|
|
|
802 * size. A request to shrink will be accepted only if the
|
|
|
803 * new size is still big enough for all other children. A
|
|
|
804 * request to shrink that is not big enough for all children
|
|
|
805 * returns an "almost" response with the new proposed size.
|
|
|
806 * A request to grow will be accepted only if the Tabs parent can
|
|
|
807 * grow to accommodate.
|
|
|
808 *
|
|
|
809 * TODO:
|
|
|
810 * We could get fancy here and re-arrange the tabs if it is
|
|
|
811 * necessary to compromise with the parent, but we'll save that
|
|
|
812 * for another day.
|
|
|
813 */
|
|
|
814
|
|
|
815 if (req->request_mode & (CWWidth | CWHeight | CWBorderWidth))
|
|
|
816 {
|
|
|
817 Dimension rw,rh ; /* child's requested width, height */
|
|
|
818 Dimension cw,ch ; /* children's preferred size */
|
|
|
819 Dimension aw,ah ; /* available size we can give child */
|
|
|
820 Dimension th ; /* space used by tabs */
|
|
|
821 Dimension wid,hgt ; /* Tabs widget size */
|
|
|
822
|
|
|
823 rw = tab->tabs.wid ;
|
|
|
824 rh = tab->tabs.hgt ;
|
|
|
825
|
|
|
826 /* find out what the resulting preferred size would be */
|
|
|
827
|
|
|
828 #ifdef COMMENT
|
|
|
829 MaxChild(tw, &cw, &ch) ;
|
|
|
830 #endif /* COMMENT */
|
|
|
831 PreferredSize2(tw, tw->tabs.max_cw,tw->tabs.max_ch, &wid, &hgt) ;
|
|
|
832
|
|
|
833 /* Ask to be resized to accommodate. */
|
|
|
834
|
|
|
835 if( wid != tw->core.width || hgt != tw->core.height )
|
|
|
836 {
|
|
|
837 Dimension oldWid = tw->core.width, oldHgt = tw->core.height ;
|
|
|
838 XtWidgetGeometry myrequest, myreply ;
|
|
|
839
|
|
|
840 myrequest.width = wid ;
|
|
|
841 myrequest.height = hgt ;
|
|
|
842 myrequest.request_mode = CWWidth | CWHeight ;
|
|
|
843
|
|
|
844 /* If child is only querying, or if we're going to have to
|
|
|
845 * offer the child a compromise, then make this a query only.
|
|
|
846 */
|
|
|
847
|
|
|
848 if( (req->request_mode & XtCWQueryOnly) || rw < cw || rh < ch )
|
|
|
849 myrequest.request_mode |= XtCWQueryOnly ;
|
|
|
850
|
|
|
851 result = XtMakeGeometryRequest((Widget)tw, &myrequest, &myreply) ;
|
|
|
852
|
|
|
853 /* !$@# Box widget changes the core size even if QueryOnly
|
|
|
854 * is set. I'm convinced this is a bug. At any rate, to work
|
|
|
855 * around the bug, we need to restore the core size after every
|
|
|
856 * query geometry request. This is only partly effective,
|
|
|
857 * as there may be other boxes further up the tree.
|
|
|
858 */
|
|
|
859 if( myrequest.request_mode & XtCWQueryOnly ) {
|
|
|
860 tw->core.width = oldWid ;
|
|
|
861 tw->core.height = oldHgt ;
|
|
|
862 }
|
|
|
863
|
|
|
864 /* based on the parent's response, determine what the
|
|
|
865 * resulting Tabs widget size would be.
|
|
|
866 */
|
|
|
867
|
|
|
868 switch( result ) {
|
|
|
869 case XtGeometryYes:
|
|
|
870 case XtGeometryDone:
|
|
|
871 break ;
|
|
|
872
|
|
|
873 case XtGeometryNo:
|
|
|
874 wid = tw->core.width ;
|
|
|
875 hgt = tw->core.height ;
|
|
|
876 break ;
|
|
|
877
|
|
|
878 case XtGeometryAlmost:
|
|
|
879 wid = myreply.width ;
|
|
|
880 hgt = myreply.height ;
|
|
|
881 }
|
|
|
882 }
|
|
|
883
|
|
|
884 /* Within the constraints imposed by the parent, what is
|
|
|
885 * the max size we can give the child?
|
|
|
886 */
|
|
|
887 (void) TabLayout(tw, wid, hgt, &th, True) ;
|
|
|
888 aw = wid - 2*s ;
|
|
|
889 ah = hgt - th - 2*s ;
|
|
|
890
|
|
|
891 /* OK, make our decision. If requested size is >= max sibling
|
|
|
892 * preferred size, AND requested size <= available size, then
|
|
|
893 * we accept. Otherwise, we offer a compromise.
|
|
|
894 */
|
|
|
895
|
|
|
896 if( rw == aw && rh == ah )
|
|
|
897 {
|
|
|
898 /* Acceptable. If this wasn't a query, change *all* children
|
|
|
899 * to this size.
|
|
|
900 */
|
|
|
901 if( req->request_mode & XtCWQueryOnly )
|
|
|
902 return XtGeometryYes ;
|
|
|
903 else
|
|
|
904 {
|
|
|
905 Widget *childP = tw->composite.children ;
|
|
|
906 int i,bw ;
|
|
|
907 w->core.border_width = req->border_width ;
|
|
|
908 for(i=tw->tabs.displayChildren; --i >= 0; ++childP)
|
|
|
909 if( XtIsManaged(*childP) )
|
|
|
910 {
|
|
|
911 bw = (*childP)->core.border_width ;
|
|
|
912 XtConfigureWidget(*childP, s,tw->tabs.tab_total+s,
|
|
|
913 rw-2*bw, rh-2*bw, bw) ;
|
|
|
914 }
|
|
|
915 #ifdef COMMENT
|
|
|
916 /* TODO: under what conditions will we need to redraw? */
|
|
|
917 XClearWindow(XtDisplay((Widget)tw), XtWindow((Widget)tw)) ;
|
|
|
918 XtClass(tw)->core_class.expose((Widget)tw,NULL,NULL) ;
|
|
|
919 #endif /* COMMENT */
|
|
|
920 return XtGeometryDone ;
|
|
|
921 }
|
|
|
922 }
|
|
|
923
|
|
|
924 /* Cannot grant child's request. Describe what we *can* do
|
|
|
925 * and return counter-offer.
|
|
|
926 */
|
|
|
927 reply->width = aw - 2 * req->border_width ;
|
|
|
928 reply->height = ah - 2 * req->border_width ;
|
|
|
929 reply->border_width = req->border_width ;
|
|
|
930 reply->request_mode = CWWidth | CWHeight | CWBorderWidth ;
|
|
|
931 return XtGeometryAlmost ;
|
|
|
932 }
|
|
|
933
|
|
|
934 return XtGeometryYes ;
|
|
|
935 }
|
|
|
936
|
|
|
937
|
|
|
938
|
|
|
939
|
|
|
940 /* The number of children we manage has changed; recompute
|
|
|
941 * size from scratch.
|
|
|
942 */
|
|
|
943
|
|
|
944 static void
|
|
|
945 TabsChangeManaged(Widget w)
|
|
|
946 {
|
|
|
947 TabsWidget tw = (TabsWidget)w ;
|
|
|
948 Widget *childP = tw->composite.children ;
|
|
|
949 int i ;
|
|
|
950
|
|
|
951 if( tw->tabs.topWidget != NULL &&
|
|
|
952 ( !XtIsManaged(tw->tabs.topWidget) ||
|
|
|
953 tw->tabs.topWidget->core.being_destroyed ) )
|
|
|
954 tw->tabs.topWidget = NULL ;
|
|
|
955
|
|
|
956 GetPreferredSizes(tw) ;
|
|
|
957 MakeSizeRequest(tw) ;
|
|
|
958
|
|
|
959 XtClass(w)->core_class.resize(w) ;
|
|
|
960 if( XtIsRealized(w) )
|
|
|
961 {
|
|
|
962 Display *dpy = XtDisplay(w) ;
|
|
|
963 XClearWindow(dpy, XtWindow(w)) ;
|
|
|
964 XtClass(w)->core_class.expose(w,NULL,NULL) ;
|
|
|
965
|
|
|
966 /* make sure the top widget stays on top. This requires
|
|
|
967 * making sure that all new children are realized first.
|
|
|
968 */
|
|
|
969 if( tw->tabs.topWidget != NULL && XtIsRealized(tw->tabs.topWidget) )
|
|
|
970 {
|
|
|
971 for(i=tw->tabs.displayChildren; --i >= 0; ++childP)
|
|
|
972 if( !XtIsRealized(*childP) )
|
|
|
973 XtRealizeWidget(*childP) ;
|
|
|
974
|
|
|
975 XRaiseWindow(dpy, XtWindow(tw->tabs.topWidget)) ;
|
|
|
976 }
|
|
|
977 }
|
|
|
978
|
|
|
979 #ifdef NEED_MOTIF
|
|
|
980 /* Only top widget may receive input */
|
|
|
981
|
|
|
982 for(childP = tw->composite.children, i=tw->composite.num_children;
|
|
|
983 --i >= 0;
|
|
|
984 ++childP)
|
|
|
985 {
|
|
|
986 XtVaSetValues(*childP, XmNtraversalOn, False, 0) ;
|
|
|
987 }
|
|
|
988
|
|
|
989 if( tw->tabs.topWidget != NULL )
|
|
|
990 XtVaSetValues(tw->tabs.topWidget, XmNtraversalOn, True, 0) ;
|
|
|
991 #endif
|
|
|
992
|
|
|
993
|
|
|
994
|
|
|
995 }
|
|
|
996
|
|
|
997
|
|
|
998
|
|
|
999
|
|
|
1000 /****************************************************************
|
|
|
1001 *
|
|
|
1002 * Action Procedures
|
|
|
1003 *
|
|
|
1004 ****************************************************************/
|
|
|
1005
|
|
|
1006
|
|
|
1007 /* User clicks on a tab, figure out which one it was. */
|
|
|
1008
|
|
|
1009 /* ARGSUSED */
|
|
|
1010 static void
|
|
|
1011 TabsSelect(Widget w, XEvent *event, String *params, Cardinal *num_params)
|
|
|
1012 {
|
|
|
1013 TabsWidget tw = (TabsWidget) w ;
|
|
|
1014 Widget *childP ;
|
|
|
1015 Position x,y ;
|
|
|
1016 Dimension h = tw->tabs.tab_height ;
|
|
|
1017 int i ;
|
|
|
1018
|
|
|
1019 #ifdef NEED_MOTIF
|
|
|
1020 XmProcessTraversal (w, XmTRAVERSE_CURRENT) ;
|
|
|
1021 #endif
|
|
|
1022
|
|
|
1023 /* TODO: is there an Xmu function or something to do this instead? */
|
|
|
1024 switch( event->type ) {
|
|
|
1025 case ButtonPress:
|
|
|
1026 case ButtonRelease:
|
|
|
1027 x = event->xbutton.x ; y = event->xbutton.y ; break ;
|
|
|
1028 case KeyPress:
|
|
|
1029 case KeyRelease:
|
|
|
1030 x = event->xkey.x ; y = event->xkey.y ; break ;
|
|
|
1031 default:
|
|
|
1032 return ;
|
|
|
1033 }
|
|
|
1034
|
|
|
1035 /* TODO: determine which tab was clicked, if any. Set that
|
|
|
1036 * widget to be top of stacking order with XawTabsSetTop().
|
|
|
1037 */
|
|
|
1038 for(i=0, childP=tw->composite.children;
|
|
|
1039 i < tw->tabs.displayChildren;
|
|
|
1040 ++i, ++childP)
|
|
|
1041 if( XtIsManaged(*childP) )
|
|
|
1042 {
|
|
|
1043 TabsConstraints tab = (TabsConstraints)(*childP)->core.constraints;
|
|
|
1044 if( x > tab->tabs.x && x < tab->tabs.x + tab->tabs.width &&
|
|
|
1045 y > tab->tabs.y && y < tab->tabs.y + h )
|
|
|
1046 {
|
|
|
1047 if( *childP != tw->tabs.topWidget &&
|
|
|
1048 (XtIsSensitive(*childP) || tw->tabs.selectInsensitive) )
|
|
|
1049 XawTabsSetTop(*childP, True) ;
|
|
|
1050 break ;
|
|
|
1051 }
|
|
|
1052 }
|
|
|
1053 }
|
|
|
1054
|
|
|
1055
|
|
|
1056 /* User hits a key */
|
|
|
1057
|
|
|
1058 static void
|
|
|
1059 TabsPage(Widget w, XEvent *event, String *params, Cardinal *num_params)
|
|
|
1060 {
|
|
|
1061 TabsWidget tw = (TabsWidget) w ;
|
|
|
1062 Widget newtop ;
|
|
|
1063 Widget *childP ;
|
|
|
1064 int idx ;
|
|
|
1065 int nc = tw->composite.num_children ;
|
|
|
1066
|
|
|
1067 if( nc <= 0 )
|
|
|
1068 return ;
|
|
|
1069
|
|
|
1070 if( *num_params < 1 ) {
|
|
|
1071 XtAppWarning(XtWidgetToApplicationContext(w),
|
|
|
1072 "Tabs: page() action called with no arguments") ;
|
|
|
1073 return ;
|
|
|
1074 }
|
|
|
1075
|
|
|
1076 if( tw->tabs.topWidget == NULL )
|
|
|
1077 tw->tabs.topWidget = tw->composite.children[0] ;
|
|
|
1078
|
|
|
1079 for(idx=0, childP=tw->composite.children; idx < nc; ++idx, ++childP )
|
|
|
1080 if( tw->tabs.topWidget == *childP )
|
|
|
1081 break ;
|
|
|
1082
|
|
|
1083 switch( params[0][0] ) {
|
|
|
1084 case 'u': /* up */
|
|
|
1085 case 'U':
|
|
|
1086 if( idx == 0 )
|
|
|
1087 idx = nc ;
|
|
|
1088 newtop = tw->composite.children[idx-1] ;
|
|
|
1089 break ;
|
|
|
1090
|
|
|
1091 case 'd': /* down */
|
|
|
1092 case 'D':
|
|
|
1093 if( ++idx >= nc )
|
|
|
1094 idx = 0 ;
|
|
|
1095 newtop = tw->composite.children[idx] ;
|
|
|
1096 break ;
|
|
|
1097
|
|
|
1098 case 'h':
|
|
|
1099 case 'H':
|
|
|
1100 newtop = tw->composite.children[0] ;
|
|
|
1101 break ;
|
|
|
1102
|
|
|
1103 case 'e':
|
|
|
1104 case 'E':
|
|
|
1105 newtop = tw->composite.children[nc-1] ;
|
|
|
1106 break ;
|
|
|
1107
|
|
|
1108 case 's': /* selected */
|
|
|
1109 case 'S':
|
|
|
1110 if( (newtop = tw->tabs.hilight) == NULL )
|
|
|
1111 return ;
|
|
|
1112 break ;
|
|
|
1113 }
|
|
|
1114
|
|
|
1115 XawTabsSetTop(newtop, True) ;
|
|
|
1116 }
|
|
|
1117
|
|
|
1118
|
|
|
1119 /* User hits up/down key */
|
|
|
1120
|
|
|
1121 static void
|
|
|
1122 TabsHighlight(Widget w, XEvent *event, String *params, Cardinal *num_params)
|
|
|
1123 {
|
|
|
1124 TabsWidget tw = (TabsWidget) w ;
|
|
|
1125 Widget newhl ;
|
|
|
1126 Widget *childP ;
|
|
|
1127 int idx ;
|
|
|
1128 int nc = tw->composite.num_children ;
|
|
|
1129
|
|
|
1130 if( nc <= 0 )
|
|
|
1131 return ;
|
|
|
1132
|
|
|
1133 if( *num_params < 1 )
|
|
|
1134 {
|
|
|
1135 if( tw->tabs.hilight != NULL )
|
|
|
1136 DrawHighlight(tw, tw->tabs.hilight, False) ;
|
|
|
1137 return ;
|
|
|
1138 }
|
|
|
1139
|
|
|
1140 if( tw->tabs.hilight == NULL )
|
|
|
1141 newhl = tw->composite.children[0] ;
|
|
|
1142
|
|
|
1143 else
|
|
|
1144 {
|
|
|
1145 for(idx=0, childP=tw->composite.children; idx < nc; ++idx, ++childP )
|
|
|
1146 if( tw->tabs.hilight == *childP )
|
|
|
1147 break ;
|
|
|
1148
|
|
|
1149 switch( params[0][0] ) {
|
|
|
1150 case 'u': /* up */
|
|
|
1151 case 'U':
|
|
|
1152 if( idx == 0 )
|
|
|
1153 idx = nc ;
|
|
|
1154 newhl = tw->composite.children[idx-1] ;
|
|
|
1155 break ;
|
|
|
1156
|
|
|
1157 case 'd': /* down */
|
|
|
1158 case 'D':
|
|
|
1159 if( ++idx >= nc )
|
|
|
1160 idx = 0 ;
|
|
|
1161 newhl = tw->composite.children[idx] ;
|
|
|
1162 break ;
|
|
|
1163
|
|
|
1164 case 'h':
|
|
|
1165 case 'H':
|
|
|
1166 newhl = tw->composite.children[0] ;
|
|
|
1167 break ;
|
|
|
1168
|
|
|
1169 case 'e':
|
|
|
1170 case 'E':
|
|
|
1171 newhl = tw->composite.children[nc-1] ;
|
|
|
1172 break ;
|
|
|
1173 }
|
|
|
1174 }
|
|
|
1175
|
|
|
1176 XawTabsSetHighlight(w, newhl) ;
|
|
|
1177 }
|
|
|
1178
|
|
|
1179
|
|
|
1180
|
|
|
1181 static void
|
|
|
1182 TabsUnhighlight(Widget w, XEvent *event, String *params, Cardinal *num_params)
|
|
|
1183 {
|
|
|
1184 TabsWidget tw = (TabsWidget) w ;
|
|
|
1185 int nc = tw->composite.num_children ;
|
|
|
1186
|
|
|
1187 if( nc <= 0 )
|
|
|
1188 return ;
|
|
|
1189
|
|
|
1190 if( tw->tabs.hilight != NULL )
|
|
|
1191 DrawHighlight(tw, tw->tabs.hilight, True) ;
|
|
|
1192 }
|
|
|
1193
|
|
|
1194
|
|
|
1195
|
|
|
1196
|
|
|
1197
|
|
|
1198 /****************************************************************
|
|
|
1199 *
|
|
|
1200 * Public Procedures
|
|
|
1201 *
|
|
|
1202 ****************************************************************/
|
|
|
1203
|
|
|
1204
|
|
|
1205 /* Set the top tab, optionally call all callbacks. */
|
|
|
1206 void
|
|
|
1207 XawTabsSetTop(Widget w, Bool callCallbacks)
|
|
|
1208 {
|
|
|
1209 TabsWidget tw = (TabsWidget)w->core.parent ;
|
|
|
1210 TabsConstraints tab ;
|
|
|
1211 Widget oldtop = tw->tabs.topWidget ;
|
|
|
1212
|
|
|
1213 if( !XtIsSubclass(w->core.parent, tabsWidgetClass) )
|
|
|
1214 {
|
|
|
1215 char line[1024] ;
|
|
|
1216 sprintf(line, "XawTabsSetTop: widget \"%s\" is not the child of a tabs widget.", XtName(w)) ;
|
|
|
1217 XtAppWarning(XtWidgetToApplicationContext(w), line) ;
|
|
|
1218 return ;
|
|
|
1219 }
|
|
|
1220
|
|
|
1221 if( callCallbacks )
|
|
|
1222 XtCallCallbackList(w, tw->tabs.popdownCallbacks,
|
|
|
1223 (XtPointer)tw->tabs.topWidget) ;
|
|
|
1224
|
|
|
1225 if( !XtIsRealized(w) ) {
|
|
|
1226 tw->tabs.topWidget = w ;
|
|
|
1227 tw->tabs.needs_layout = True ;
|
|
|
1228 return ;
|
|
|
1229 }
|
|
|
1230
|
|
|
1231 XRaiseWindow(XtDisplay(w), XtWindow(w)) ;
|
|
|
1232 #ifdef NEED_MOTIF
|
|
|
1233 XtVaSetValues(oldtop, XmNtraversalOn, False, 0) ;
|
|
|
1234 XtVaSetValues(w, XmNtraversalOn, True, 0) ;
|
|
|
1235 #endif
|
|
|
1236
|
|
|
1237 tab = (TabsConstraints) w->core.constraints ;
|
|
|
1238 if( tab->tabs.row == 0 )
|
|
|
1239 {
|
|
|
1240 /* Easy case; undraw current top, undraw new top, assign new
|
|
|
1241 * top, redraw all borders.
|
|
|
1242 * We *could* just erase and execute a full redraw, but I like to
|
|
|
1243 * reduce screen flicker.
|
|
|
1244 */
|
|
|
1245 UndrawTab(tw, oldtop) ; /* undraw old */
|
|
|
1246 DrawBorder(tw, oldtop, True) ;
|
|
|
1247 UndrawTab(tw, w) ; /* undraw new */
|
|
|
1248 DrawBorder(tw, w, True) ;
|
|
|
1249 tw->tabs.topWidget = w ;
|
|
|
1250 DrawTab(tw, oldtop, True) ; /* redraw old */
|
|
|
1251 DrawTab(tw, w, True) ; /* redraw new */
|
|
|
1252 DrawTabs(tw, False) ;
|
|
|
1253 }
|
|
|
1254 else
|
|
|
1255 {
|
|
|
1256 tw->tabs.topWidget = w ;
|
|
|
1257 TabsShuffleRows(tw) ;
|
|
|
1258 XClearWindow(XtDisplay((Widget)tw), XtWindow((Widget)tw)) ;
|
|
|
1259 XtClass(tw)->core_class.expose((Widget)tw,NULL,None) ;
|
|
|
1260 }
|
|
|
1261
|
|
|
1262 XawTabsSetHighlight((Widget)tw, w) ;
|
|
|
1263
|
|
|
1264 if( callCallbacks )
|
|
|
1265 XtCallCallbackList(w, tw->tabs.callbacks, (XtPointer)w) ;
|
|
|
1266 }
|
|
|
1267
|
|
|
1268
|
|
|
1269 /* Set the top tab, optionally call all callbacks. */
|
|
|
1270 void
|
|
|
1271 XawTabsSetHighlight(Widget t, Widget w)
|
|
|
1272 {
|
|
|
1273 TabsWidget tw = (TabsWidget)t ;
|
|
|
1274
|
|
|
1275 if( !XtIsSubclass(t, tabsWidgetClass) )
|
|
|
1276 return ;
|
|
|
1277
|
|
|
1278 if( XtIsRealized(t) && w != tw->tabs.hilight )
|
|
|
1279 {
|
|
|
1280 if( tw->tabs.hilight != NULL )
|
|
|
1281 DrawHighlight(tw, tw->tabs.hilight, True) ;
|
|
|
1282 if( w != NULL )
|
|
|
1283 DrawHighlight(tw, w, False) ;
|
|
|
1284 }
|
|
|
1285
|
|
|
1286 tw->tabs.hilight = w ;
|
|
|
1287 }
|
|
|
1288
|
|
|
1289
|
|
|
1290
|
|
|
1291
|
|
|
1292 /****************************************************************
|
|
|
1293 *
|
|
|
1294 * Private Procedures
|
|
|
1295 *
|
|
|
1296 ****************************************************************/
|
|
|
1297
|
|
|
1298
|
|
|
1299 static void
|
|
|
1300 TabsAllocGCs(TabsWidget tw)
|
|
|
1301 {
|
|
|
1302 TabsAllocFgGC(tw) ;
|
|
|
1303 TabsAllocGreyGC(tw) ;
|
|
|
1304 tw->tabs.backgroundGC = AllocBackgroundGC((Widget)tw, None) ;
|
|
|
1305 tw->tabs.topGC = AllocTopShadowGC((Widget)tw,
|
|
|
1306 tw->tabs.top_shadow_contrast, tw->tabs.be_nice_to_cmap) ;
|
|
|
1307 tw->tabs.botGC = AllocBotShadowGC((Widget)tw,
|
|
|
1308 tw->tabs.bot_shadow_contrast, tw->tabs.be_nice_to_cmap) ;
|
|
|
1309 }
|
|
|
1310
|
|
|
1311
|
|
|
1312 static void
|
|
|
1313 TabsFreeGCs(TabsWidget tw)
|
|
|
1314 {
|
|
|
1315 Widget w = (Widget) tw;
|
|
|
1316
|
|
|
1317 XtReleaseGC(w, tw->tabs.foregroundGC) ;
|
|
|
1318 XtReleaseGC(w, tw->tabs.greyGC) ;
|
|
|
1319 XtReleaseGC(w, tw->tabs.backgroundGC) ;
|
|
|
1320 XtReleaseGC(w, tw->tabs.topGC) ;
|
|
|
1321 XtReleaseGC(w, tw->tabs.botGC) ;
|
|
|
1322 #ifdef HAVE_XMU
|
|
|
1323 XmuReleaseStippledPixmap(XtScreen(w), tw->tabs.grey50) ;
|
|
|
1324 #endif
|
|
|
1325 }
|
|
|
1326
|
|
|
1327
|
|
|
1328
|
|
|
1329
|
|
|
1330
|
|
|
1331 /* Redraw entire Tabs widget */
|
|
|
1332
|
|
|
1333 static void
|
|
|
1334 DrawTabs(TabsWidget tw, Bool labels)
|
|
|
1335 {
|
|
|
1336 Widget *childP ;
|
|
|
1337 int i,j ;
|
|
|
1338 Dimension s = SHADWID ;
|
|
|
1339 Dimension th = tw->tabs.tab_height ;
|
|
|
1340 Position y ;
|
|
|
1341 TabsConstraints tab ;
|
|
|
1342
|
|
|
1343 if( !XtIsRealized((Widget)tw))
|
|
|
1344 return ;
|
|
|
1345
|
|
|
1346 /* draw tabs and frames by row except for the top tab, which
|
|
|
1347 * is drawn last. (This is inefficiently written, but should not
|
|
|
1348 * be too slow as long as there are not a lot of rows.)
|
|
|
1349 */
|
|
|
1350
|
|
|
1351 y = tw->tabs.numRows == 1 ? TABDELTA : 0 ;
|
|
|
1352 for(i=0; i<tw->tabs.numRows; ++i, y += th)
|
|
|
1353 {
|
|
|
1354 for( j=tw->tabs.displayChildren, childP=tw->composite.children;
|
|
|
1355 --j >= 0; ++childP )
|
|
|
1356 if( XtIsManaged(*childP) )
|
|
|
1357 {
|
|
|
1358 tab = (TabsConstraints)(*childP)->core.constraints;
|
|
|
1359 if( tab->tabs.row == i && *childP != tw->tabs.topWidget )
|
|
|
1360 DrawTab(tw, *childP, labels) ;
|
|
|
1361 }
|
|
|
1362 if( i != tw->tabs.numRows -1 )
|
|
|
1363 DrawTrim(tw, 0,y+th, tw->core.width, th+s, False,False) ;
|
|
|
1364 }
|
|
|
1365
|
|
|
1366 DrawFrame(tw) ;
|
|
|
1367
|
|
|
1368 /* and now the top tab */
|
|
|
1369 if( tw->tabs.topWidget != NULL )
|
|
|
1370 DrawTab(tw, tw->tabs.topWidget, labels) ;
|
|
|
1371 }
|
|
|
1372
|
|
|
1373
|
|
|
1374
|
|
|
1375 /* Draw one tab. Corners are rounded very slightly. */
|
|
|
1376
|
|
|
1377 static void
|
|
|
1378 DrawTab(TabsWidget tw, Widget child, Bool labels)
|
|
|
1379 {
|
|
|
1380 GC gc ;
|
|
|
1381 int x,y ;
|
|
|
1382
|
|
|
1383 if( !XtIsRealized((Widget)tw))
|
|
|
1384 return ;
|
|
|
1385
|
|
|
1386 DrawBorder(tw, child, False) ;
|
|
|
1387
|
|
|
1388 if( labels )
|
|
|
1389 {
|
|
|
1390 TabsConstraints tab = (TabsConstraints)child->core.constraints;
|
|
|
1391 Display *dpy = XtDisplay((Widget)tw) ;
|
|
|
1392 Window win = XtWindow((Widget)tw) ;
|
|
|
1393 String lbl = tab->tabs.label != NULL ?
|
|
|
1394 tab->tabs.label : XtName(child) ;
|
|
|
1395
|
|
|
1396 if( XtIsSensitive(child) )
|
|
|
1397 {
|
|
|
1398 gc = tw->tabs.foregroundGC ;
|
|
|
1399 XSetForeground(dpy, gc, tab->tabs.foreground) ;
|
|
|
1400 }
|
|
|
1401 else
|
|
|
1402 {
|
|
|
1403 /* grey pixel allocation deferred until now */
|
|
|
1404 if( !tab->tabs.greyAlloc )
|
|
|
1405 {
|
|
|
1406 if( tw->tabs.be_nice_to_cmap || tw->core.depth == 1 )
|
|
|
1407 tab->tabs.grey = tab->tabs.foreground ;
|
|
|
1408 else
|
|
|
1409 tab->tabs.grey = AllocGreyPixel((Widget)tw,
|
|
|
1410 tab->tabs.foreground,
|
|
|
1411 tw->core.background_pixel,
|
|
|
1412 tw->tabs.insensitive_contrast ) ;
|
|
|
1413 tab->tabs.greyAlloc = True ;
|
|
|
1414 }
|
|
|
1415 gc = tw->tabs.greyGC ;
|
|
|
1416 XSetForeground(dpy, gc, tab->tabs.grey) ;
|
|
|
1417 }
|
|
|
1418
|
|
|
1419 x = tab->tabs.x ;
|
|
|
1420 y = tab->tabs.y ;
|
|
|
1421 if( child == tw->tabs.topWidget )
|
|
|
1422 y -= TABLDELTA ;
|
|
|
1423
|
|
|
1424 if( tab->tabs.left_bitmap != None && tab->tabs.lbm_width > 0 )
|
|
|
1425 {
|
|
|
1426 if( tab->tabs.lbm_depth == 1 )
|
|
|
1427 XCopyPlane(dpy, tab->tabs.left_bitmap, win,gc,
|
|
|
1428 0,0, tab->tabs.lbm_width, tab->tabs.lbm_height,
|
|
|
1429 x+tab->tabs.lbm_x, y+tab->tabs.lbm_y, 1L) ;
|
|
|
1430 else
|
|
|
1431 XCopyArea(dpy, tab->tabs.left_bitmap, win,gc,
|
|
|
1432 0,0, tab->tabs.lbm_width, tab->tabs.lbm_height,
|
|
|
1433 x+tab->tabs.lbm_x, y+tab->tabs.lbm_y) ;
|
|
|
1434 }
|
|
|
1435
|
|
|
1436 if( lbl != NULL && tw->tabs.font != NULL )
|
|
|
1437 XDrawString(dpy,win,gc,
|
|
|
1438 x+tab->tabs.l_x, y+tab->tabs.l_y,
|
|
|
1439 lbl, (int)strlen(lbl)) ;
|
|
|
1440 }
|
|
|
1441
|
|
|
1442 if( child == tw->tabs.hilight )
|
|
|
1443 DrawHighlight(tw, child, False) ;
|
|
|
1444 }
|
|
|
1445
|
|
|
1446
|
|
|
1447 /* draw frame all the way around the child windows. */
|
|
|
1448
|
|
|
1449 static void
|
|
|
1450 DrawFrame(TabsWidget tw)
|
|
|
1451 {
|
|
|
1452 GC topgc = tw->tabs.topGC ;
|
|
|
1453 GC botgc = tw->tabs.botGC ;
|
|
|
1454 Dimension s = SHADWID ;
|
|
|
1455 Dimension ch = tw->tabs.child_height ;
|
|
|
1456 Draw3dBox((Widget)tw, 0,tw->tabs.tab_total,
|
|
|
1457 tw->core.width, ch+2*s, s, topgc, botgc) ;
|
|
|
1458 }
|
|
|
1459
|
|
|
1460
|
|
|
1461 /* draw trim around a tab or underneath a row of tabs */
|
|
|
1462
|
|
|
1463 static void
|
|
|
1464 DrawTrim(TabsWidget tw, /* widget */
|
|
|
1465 int x, /* upper-left corner */
|
|
|
1466 int y,
|
|
|
1467 int wid, /* total size */
|
|
|
1468 int hgt,
|
|
|
1469 Bool bottom, /* draw bottom? */
|
|
|
1470 Bool undraw) /* undraw all */
|
|
|
1471 {
|
|
|
1472 Display *dpy = XtDisplay((Widget)tw) ;
|
|
|
1473 Window win = XtWindow((Widget)tw) ;
|
|
|
1474 GC bggc = tw->tabs.backgroundGC ;
|
|
|
1475 GC topgc = undraw ? bggc : tw->tabs.topGC ;
|
|
|
1476 GC botgc = undraw ? bggc : tw->tabs.botGC ;
|
|
|
1477 if( bottom )
|
|
|
1478 XDrawLine(dpy,win,bggc, x,y+hgt-1, x+wid-1,y+hgt-1) ; /* bottom */
|
|
|
1479 XDrawLine(dpy,win,topgc, x,y+2, x,y+hgt-2) ; /* left */
|
|
|
1480 XDrawPoint(dpy,win,topgc, x+1,y+1) ; /* corner */
|
|
|
1481 XDrawLine(dpy,win,topgc, x+2,y, x+wid-3,y) ; /* top */
|
|
|
1482 XDrawLine(dpy,win,botgc, x+wid-2,y+1, x+wid-2,y+hgt-2) ; /* right */
|
|
|
1483 XDrawLine(dpy,win,botgc, x+wid-1,y+2, x+wid-1,y+hgt-2) ; /* right */
|
|
|
1484 }
|
|
|
1485
|
|
|
1486
|
|
|
1487 /* Draw one tab border. */
|
|
|
1488
|
|
|
1489 static void
|
|
|
1490 DrawBorder(TabsWidget tw, Widget child, Bool undraw)
|
|
|
1491 {
|
|
|
1492 TabsConstraints tab = (TabsConstraints)child->core.constraints;
|
|
|
1493 Position x = tab->tabs.x ;
|
|
|
1494 Position y = tab->tabs.y ;
|
|
|
1495 Dimension twid = tab->tabs.width ;
|
|
|
1496 Dimension thgt = tw->tabs.tab_height ;
|
|
|
1497
|
|
|
1498 /* top tab requires a little special attention; it overlaps
|
|
|
1499 * neighboring tabs slightly, so the background must be cleared
|
|
|
1500 * in the region of the overlap to partially erase those neighbors.
|
|
|
1501 * TODO: is this worth doing with regions instead?
|
|
|
1502 */
|
|
|
1503 if( child == tw->tabs.topWidget )
|
|
|
1504 {
|
|
|
1505 Display *dpy = XtDisplay((Widget)tw) ;
|
|
|
1506 Window win = XtWindow((Widget)tw) ;
|
|
|
1507 GC bggc = tw->tabs.backgroundGC ;
|
|
|
1508 XRectangle rects[3] ;
|
|
|
1509 x -= TABDELTA ;
|
|
|
1510 y -= TABDELTA ;
|
|
|
1511 twid += TABDELTA*2 ;
|
|
|
1512 thgt += TABDELTA ;
|
|
|
1513 AddRect(0, x,y+1,twid,TABDELTA) ;
|
|
|
1514 AddRect(1, x+1,y,TABDELTA,thgt) ;
|
|
|
1515 AddRect(2, x+twid-TABDELTA-1,y,TABDELTA,thgt) ;
|
|
|
1516 XFillRectangles(dpy,win,bggc, rects, 3) ;
|
|
|
1517 }
|
|
|
1518
|
|
|
1519 DrawTrim(tw, x,y,twid,thgt+1, child == tw->tabs.topWidget, undraw) ;
|
|
|
1520 }
|
|
|
1521
|
|
|
1522
|
|
|
1523 /* Draw highlight around tab that has focus */
|
|
|
1524
|
|
|
1525 static void
|
|
|
1526 DrawHighlight(TabsWidget tw, Widget child, Bool undraw)
|
|
|
1527 {
|
|
|
1528 TabsConstraints tab = (TabsConstraints)child->core.constraints;
|
|
|
1529 Display *dpy = XtDisplay((Widget)tw) ;
|
|
|
1530 Window win = XtWindow((Widget)tw) ;
|
|
|
1531 GC gc ;
|
|
|
1532 Position x = tab->tabs.x ;
|
|
|
1533 Position y = tab->tabs.y ;
|
|
|
1534 Dimension wid = tab->tabs.width ;
|
|
|
1535 Dimension hgt = tw->tabs.tab_height ;
|
|
|
1536 XPoint points[6] ;
|
|
|
1537
|
|
|
1538 /* top tab does not have a highlight */
|
|
|
1539
|
|
|
1540 if( child == tw->tabs.topWidget )
|
|
|
1541 return ;
|
|
|
1542
|
|
|
1543 if( undraw )
|
|
|
1544 gc = tw->tabs.backgroundGC ;
|
|
|
1545
|
|
|
1546 else if( XtIsSensitive(child) )
|
|
|
1547 {
|
|
|
1548 gc = tw->tabs.foregroundGC ;
|
|
|
1549 XSetForeground(dpy, gc, tab->tabs.foreground) ;
|
|
|
1550 }
|
|
|
1551 else
|
|
|
1552 {
|
|
|
1553 gc = tw->tabs.greyGC ;
|
|
|
1554 XSetForeground(dpy, gc, tab->tabs.grey) ;
|
|
|
1555 }
|
|
|
1556
|
|
|
1557 points[0].x = x+1 ; points[0].y = y+hgt-1 ;
|
|
|
1558 points[1].x = x+1 ; points[1].y = y+2 ;
|
|
|
1559 points[2].x = x+2 ; points[2].y = y+1 ;
|
|
|
1560 points[3].x = x+wid-4 ; points[3].y = y+1 ;
|
|
|
1561 points[4].x = x+wid-3 ; points[4].y = y+2 ;
|
|
|
1562 points[5].x = x+wid-3 ; points[5].y = y+hgt-1 ;
|
|
|
1563
|
|
|
1564 XDrawLines(dpy,win,gc, points,6, CoordModeOrigin) ;
|
|
|
1565 }
|
|
|
1566
|
|
|
1567
|
|
|
1568 /* Undraw one tab interior */
|
|
|
1569
|
|
|
1570 static void
|
|
|
1571 UndrawTab(TabsWidget tw, Widget child)
|
|
|
1572 {
|
|
|
1573 TabsConstraints tab = (TabsConstraints)child->core.constraints;
|
|
|
1574 Position x = tab->tabs.x ;
|
|
|
1575 Position y = tab->tabs.y ;
|
|
|
1576 Dimension twid = tab->tabs.width ;
|
|
|
1577 Dimension thgt = tw->tabs.tab_height ;
|
|
|
1578 Display *dpy = XtDisplay((Widget)tw) ;
|
|
|
1579 Window win = XtWindow((Widget)tw) ;
|
|
|
1580 GC bggc = tw->tabs.backgroundGC ;
|
|
|
1581
|
|
|
1582 XFillRectangle(dpy,win,bggc, x,y, twid,thgt) ;
|
|
|
1583 }
|
|
|
1584
|
|
|
1585
|
|
|
1586
|
|
|
1587
|
|
|
1588
|
|
|
1589 /* GEOMETRY UTILITIES */
|
|
|
1590
|
|
|
1591
|
|
|
1592 /* Compute the size of one child's tab. Positions will be computed
|
|
|
1593 * elsewhere.
|
|
|
1594 *
|
|
|
1595 * height: font height + vertical_space*2 + shadowWid*2
|
|
|
1596 * width: string width + horizontal_space*2 + shadowWid*2
|
|
|
1597 *
|
|
|
1598 * All tabs are the same height, so that is computed elsewhere.
|
|
|
1599 */
|
|
|
1600
|
|
|
1601 static void
|
|
|
1602 TabWidth(Widget w)
|
|
|
1603 {
|
|
|
1604 TabsConstraints tab = (TabsConstraints) w->core.constraints ;
|
|
|
1605 TabsWidget tw = (TabsWidget)XtParent(w) ;
|
|
|
1606 String lbl = tab->tabs.label != NULL ?
|
|
|
1607 tab->tabs.label : XtName(w) ;
|
|
|
1608 XFontStruct *font = tw->tabs.font ;
|
|
|
1609 int iw = tw->tabs.internalWidth ;
|
|
|
1610
|
|
|
1611 tab->tabs.width = iw + SHADWID*2 ;
|
|
|
1612 tab->tabs.l_x = tab->tabs.lbm_x = SHADWID + iw ;
|
|
|
1613
|
|
|
1614 if( tab->tabs.left_bitmap != None )
|
|
|
1615 {
|
|
|
1616 tab->tabs.width += tab->tabs.lbm_width + iw ;
|
|
|
1617 tab->tabs.l_x += tab->tabs.lbm_width + iw ;
|
|
|
1618 tab->tabs.lbm_y = (tw->tabs.tab_height - tab->tabs.lbm_height)/2 ;
|
|
|
1619 }
|
|
|
1620
|
|
|
1621 if( lbl != NULL && font != NULL )
|
|
|
1622 {
|
|
|
1623 tab->tabs.width += XTextWidth( font, lbl, (int)strlen(lbl) ) + iw ;
|
|
|
1624 tab->tabs.l_y = (tw->tabs.tab_height +
|
|
|
1625 tw->tabs.font->max_bounds.ascent -
|
|
|
1626 tw->tabs.font->max_bounds.descent)/2 ;
|
|
|
1627 }
|
|
|
1628 }
|
|
|
1629
|
|
|
1630
|
|
|
1631
|
|
|
1632 /* Lay out tabs to fit in given width. Compute x,y position and
|
|
|
1633 * row number for each tab. Return number of rows and total height
|
|
|
1634 * required by all tabs. If there is only one row, add TABDELTA
|
|
|
1635 * height to the total. Rows are assigned bottom to top.
|
|
|
1636 *
|
|
|
1637 * Tabs are indented from the edges by INDENT.
|
|
|
1638 *
|
|
|
1639 * TODO: if they require more than two rows and the total height:width
|
|
|
1640 * ratio is more than 2:1, then try something else.
|
|
|
1641 */
|
|
|
1642
|
|
|
1643 static int
|
|
|
1644 TabLayout(TabsWidget tw, int wid, int hgt, Dimension *reply_height, Bool query_only)
|
|
|
1645 {
|
|
|
1646 int i, row ;
|
|
|
1647 int num_children = tw->composite.num_children ;
|
|
|
1648 Widget *childP ;
|
|
|
1649 Dimension w ;
|
|
|
1650 Position x,y ;
|
|
|
1651 TabsConstraints tab ;
|
|
|
1652
|
|
|
1653 if (!query_only)
|
|
|
1654 tw->tabs.displayChildren = 0;
|
|
|
1655
|
|
|
1656 /* Algorithm: loop through children, assign X positions. If a tab
|
|
|
1657 * would extend beyond the right edge, start a new row. After all
|
|
|
1658 * rows are assigned, make a second pass and assign Y positions.
|
|
|
1659 */
|
|
|
1660
|
|
|
1661 if( num_children > 0 )
|
|
|
1662 {
|
|
|
1663 /* Loop through the tabs and see how much space they need. */
|
|
|
1664
|
|
|
1665 row = 0 ;
|
|
|
1666 x = INDENT ;
|
|
|
1667 y = 0 ;
|
|
|
1668 wid -= INDENT ;
|
|
|
1669 for(i=num_children, childP=tw->composite.children; --i >= 0; ++childP)
|
|
|
1670 if( XtIsManaged(*childP) )
|
|
|
1671 {
|
|
|
1672 tab = (TabsConstraints) (*childP)->core.constraints ;
|
|
|
1673 w = tab->tabs.width ;
|
|
|
1674 if( x + w > wid ) { /* new row */
|
|
|
1675 if (y + tw->tabs.tab_height > hgt)
|
|
|
1676 break;
|
|
|
1677 ++row ;
|
|
|
1678 x = INDENT ;
|
|
|
1679 y += tw->tabs.tab_height ;
|
|
|
1680 }
|
|
|
1681 if( !query_only ) {
|
|
|
1682 tab->tabs.x = x ;
|
|
|
1683 tab->tabs.y = y ;
|
|
|
1684 tab->tabs.row = row ;
|
|
|
1685 }
|
|
|
1686 x += w + SPACING ;
|
|
|
1687 if (!query_only)
|
|
|
1688 tw->tabs.displayChildren++;
|
|
|
1689 }
|
|
|
1690 /* If there was only one row, increse the height by TABDELTA */
|
|
|
1691 if( ++row == 1 )
|
|
|
1692 {
|
|
|
1693 y = TABDELTA ;
|
|
|
1694 if( !query_only )
|
|
|
1695 for(i=num_children, childP=tw->composite.children;
|
|
|
1696 --i >= 0 ; ++childP)
|
|
|
1697 if( XtIsManaged(*childP) )
|
|
|
1698 {
|
|
|
1699 tab = (TabsConstraints) (*childP)->core.constraints ;
|
|
|
1700 tab->tabs.y = y ;
|
|
|
1701 }
|
|
|
1702 }
|
|
|
1703 y += tw->tabs.tab_height ;
|
|
|
1704 }
|
|
|
1705 else
|
|
|
1706 row = y = 0 ;
|
|
|
1707
|
|
|
1708 if( !query_only ) {
|
|
|
1709 tw->tabs.tab_total = y ;
|
|
|
1710 tw->tabs.numRows = row ;
|
|
|
1711 }
|
|
|
1712
|
|
|
1713 if( reply_height != NULL )
|
|
|
1714 *reply_height = y ;
|
|
|
1715
|
|
|
1716 return row ;
|
|
|
1717 }
|
|
|
1718
|
|
|
1719
|
|
|
1720
|
|
|
1721 /* Find max preferred child size. Returned sizes include child
|
|
|
1722 * border widths. We only ever ask a child its preferred
|
|
|
1723 * size once. After that, the preferred size is updated only
|
|
|
1724 * if the child makes a geometry request.
|
|
|
1725 */
|
|
|
1726
|
|
|
1727 static void
|
|
|
1728 GetPreferredSizes(TabsWidget tw)
|
|
|
1729 {
|
|
|
1730 int i ;
|
|
|
1731 Widget *childP = tw->composite.children ;
|
|
|
1732 XtWidgetGeometry preferred ;
|
|
|
1733 TabsConstraints tab ;
|
|
|
1734 Dimension cw = 0, ch = 0 ;
|
|
|
1735
|
|
|
1736 for(i=tw->tabs.displayChildren; --i >= 0; ++childP)
|
|
|
1737 if( XtIsManaged(*childP) )
|
|
|
1738 {
|
|
|
1739 tab = (TabsConstraints) (*childP)->core.constraints ;
|
|
|
1740 if( !tab->tabs.queried ) {
|
|
|
1741 (void) XtQueryGeometry(*childP, NULL, &preferred) ;
|
|
|
1742 tab->tabs.bwid = preferred.border_width ;
|
|
|
1743 tab->tabs.wid = preferred.width + preferred.border_width * 2 ;
|
|
|
1744 tab->tabs.hgt = preferred.height + preferred.border_width * 2 ;
|
|
|
1745 tab->tabs.queried = True ;
|
|
|
1746 }
|
|
|
1747 cw = Max(cw, tab->tabs.wid ) ;
|
|
|
1748 ch = Max(ch, tab->tabs.hgt ) ;
|
|
|
1749 }
|
|
|
1750 tw->tabs.max_cw = cw ;
|
|
|
1751 tw->tabs.max_ch = ch ;
|
|
|
1752 }
|
|
|
1753
|
|
|
1754
|
|
|
1755
|
|
|
1756 /* Find max preferred child size. Returned sizes include child
|
|
|
1757 * border widths. */
|
|
|
1758
|
|
|
1759 static void
|
|
|
1760 MaxChild(TabsWidget tw)
|
|
|
1761 {
|
|
|
1762 Dimension cw,ch ; /* child width, height */
|
|
|
1763 int i ;
|
|
|
1764 Widget *childP = tw->composite.children ;
|
|
|
1765 TabsConstraints tab ;
|
|
|
1766
|
|
|
1767 cw = ch = 0 ;
|
|
|
1768
|
|
|
1769 for(i=tw->composite.num_children; --i >=0; ++childP)
|
|
|
1770 if( XtIsManaged(*childP) )
|
|
|
1771 {
|
|
|
1772 tab = (TabsConstraints) (*childP)->core.constraints ;
|
|
|
1773 cw = Max(cw, tab->tabs.wid ) ;
|
|
|
1774 ch = Max(ch, tab->tabs.hgt ) ;
|
|
|
1775 }
|
|
|
1776
|
|
|
1777 tw->tabs.max_cw = cw ;
|
|
|
1778 tw->tabs.max_ch = ch ;
|
|
|
1779 }
|
|
|
1780
|
|
|
1781
|
|
|
1782
|
|
|
1783 /* rotate row numbers to bring current widget to bottom row,
|
|
|
1784 * compute y positions for all tabs
|
|
|
1785 */
|
|
|
1786
|
|
|
1787 static void
|
|
|
1788 TabsShuffleRows(TabsWidget tw)
|
|
|
1789 {
|
|
|
1790 TabsConstraints tab ;
|
|
|
1791 int move ;
|
|
|
1792 int nrows ;
|
|
|
1793 Widget *childP ;
|
|
|
1794 Dimension th = tw->tabs.tab_height ;
|
|
|
1795 Position bottom ;
|
|
|
1796 int i ;
|
|
|
1797
|
|
|
1798 /* There must be a top widget. If not, assign one. */
|
|
|
1799 if( tw->tabs.topWidget == NULL && tw->composite.children != NULL )
|
|
|
1800 for(i=tw->composite.num_children, childP=tw->composite.children;
|
|
|
1801 --i >= 0;
|
|
|
1802 ++childP)
|
|
|
1803 if( XtIsManaged(*childP) ) {
|
|
|
1804 tw->tabs.topWidget = *childP ;
|
|
|
1805 break ;
|
|
|
1806 }
|
|
|
1807
|
|
|
1808 if( tw->tabs.topWidget != NULL )
|
|
|
1809 {
|
|
|
1810 nrows = tw->tabs.numRows ;
|
|
|
1811 assert( nrows > 0 ) ;
|
|
|
1812
|
|
|
1813 if( nrows > 1 )
|
|
|
1814 {
|
|
|
1815 tab = (TabsConstraints) tw->tabs.topWidget->core.constraints ;
|
|
|
1816 assert( tab != NULL ) ;
|
|
|
1817
|
|
|
1818 /* how far to move top row */
|
|
|
1819 move = nrows - tab->tabs.row ;
|
|
|
1820 bottom = tw->tabs.tab_total - th ;
|
|
|
1821
|
|
|
1822 for(i=tw->tabs.displayChildren, childP=tw->composite.children;
|
|
|
1823 --i >= 0;
|
|
|
1824 ++childP)
|
|
|
1825 if( XtIsManaged(*childP) )
|
|
|
1826 {
|
|
|
1827 tab = (TabsConstraints) (*childP)->core.constraints ;
|
|
|
1828 tab->tabs.row = (tab->tabs.row + move) % nrows ;
|
|
|
1829 tab->tabs.y = bottom - tab->tabs.row * th ;
|
|
|
1830 }
|
|
|
1831 }
|
|
|
1832 }
|
|
|
1833 }
|
|
|
1834
|
|
|
1835
|
|
|
1836 /* find preferred size. Ask children, find size of largest,
|
|
|
1837 * add room for tabs & return. This can get a little involved,
|
|
|
1838 * as we don't want to have too many rows of tabs; we may widen
|
|
|
1839 * the widget to reduce # of rows.
|
|
|
1840 */
|
|
|
1841
|
|
|
1842 static int
|
|
|
1843 PreferredSize(
|
|
|
1844 TabsWidget tw,
|
|
|
1845 Dimension *reply_width, /* total widget size */
|
|
|
1846 Dimension *reply_height,
|
|
|
1847 Dimension *reply_cw, /* child widget size */
|
|
|
1848 Dimension *reply_ch)
|
|
|
1849 {
|
|
|
1850 Dimension cw,ch ; /* child width, height */
|
|
|
1851 Dimension wid,hgt ;
|
|
|
1852 Dimension rwid,rhgt ;
|
|
|
1853 int nrow ;
|
|
|
1854
|
|
|
1855
|
|
|
1856 /* find max desired child height */
|
|
|
1857 #ifdef COMMENT
|
|
|
1858 MaxChild(tw, &cw, &ch) ;
|
|
|
1859 #endif /* COMMENT */
|
|
|
1860
|
|
|
1861 wid = cw = tw->tabs.max_cw ;
|
|
|
1862 hgt = ch = tw->tabs.max_ch ;
|
|
|
1863
|
|
|
1864 nrow = PreferredSize2(tw, wid,hgt, &rwid, &rhgt) ;
|
|
|
1865
|
|
|
1866 /* Check for absurd results (more than 2 rows, high aspect
|
|
|
1867 * ratio). Try wider size if needed.
|
|
|
1868 * TODO: make sure this terminates.
|
|
|
1869 */
|
|
|
1870
|
|
|
1871 if( nrow > 2 && rhgt > rwid )
|
|
|
1872 {
|
|
|
1873 Dimension w0, w1 ;
|
|
|
1874
|
|
|
1875 /* step 1: start doubling size until it's too big */
|
|
|
1876 do {
|
|
|
1877 w0 = wid ;
|
|
|
1878 wid = Max(wid*2, wid+20) ;
|
|
|
1879 nrow = PreferredSize2(tw, wid,hgt, &rwid,&rhgt) ;
|
|
|
1880 } while( nrow > 2 && rhgt > rwid ) ;
|
|
|
1881 w1 = wid ;
|
|
|
1882
|
|
|
1883 /* step 2: use Newton's method to find ideal size. Stop within
|
|
|
1884 * 8 pixels.
|
|
|
1885 */
|
|
|
1886 while( w1 > w0 + 8 )
|
|
|
1887 {
|
|
|
1888 wid = (w0+w1)/2 ;
|
|
|
1889 nrow = PreferredSize2(tw, wid,hgt, &rwid,&rhgt) ;
|
|
|
1890 if( nrow > 2 && rhgt > rwid )
|
|
|
1891 w0 = wid ;
|
|
|
1892 else
|
|
|
1893 w1 = wid ;
|
|
|
1894 }
|
|
|
1895 wid = w1 ;
|
|
|
1896 }
|
|
|
1897
|
|
|
1898 *reply_width = rwid ;
|
|
|
1899 *reply_height = rhgt ;
|
|
|
1900 if( reply_cw != NULL ) *reply_cw = cw ;
|
|
|
1901 if( reply_ch != NULL ) *reply_ch = ch ;
|
|
|
1902 return nrow ;
|
|
|
1903 }
|
|
|
1904
|
|
|
1905
|
|
|
1906 /* Find preferred size, given size of children. */
|
|
|
1907
|
|
|
1908 static int
|
|
|
1909 PreferredSize2(
|
|
|
1910 TabsWidget tw,
|
|
|
1911 int cw, /* child width, height */
|
|
|
1912 int ch,
|
|
|
1913 Dimension *reply_width, /* total widget size */
|
|
|
1914 Dimension *reply_height)
|
|
|
1915 {
|
|
|
1916 Dimension s = SHADWID ;
|
|
|
1917
|
|
|
1918 /* make room for shadow frame */
|
|
|
1919 cw += s*2 ;
|
|
|
1920 ch += s*2 ;
|
|
|
1921
|
|
|
1922 return PreferredSize3(tw, cw, ch, reply_width, reply_height) ;
|
|
|
1923 }
|
|
|
1924
|
|
|
1925
|
|
|
1926 /* Find preferred size, given size of children+shadow. */
|
|
|
1927
|
|
|
1928 static int
|
|
|
1929 PreferredSize3(
|
|
|
1930 TabsWidget tw,
|
|
|
1931 int wid, /* child width, height */
|
|
|
1932 int hgt,
|
|
|
1933 Dimension *reply_width, /* total widget size */
|
|
|
1934 Dimension *reply_height)
|
|
|
1935 {
|
|
|
1936 Dimension th ; /* space used by tabs */
|
|
|
1937 int nrows ;
|
|
|
1938
|
|
|
1939 if( tw->composite.num_children > 0 )
|
|
|
1940 nrows = TabLayout(tw, wid, hgt, &th, True) ;
|
|
|
1941 else {
|
|
|
1942 th = 0 ;
|
|
|
1943 nrows = 0 ;
|
|
|
1944 }
|
|
|
1945
|
|
|
1946 *reply_width = Max(wid, MIN_WID) ;
|
|
|
1947 *reply_height = Max(th+hgt, MIN_HGT) ;
|
|
|
1948
|
|
|
1949 return nrows ;
|
|
|
1950 }
|
|
|
1951
|
|
|
1952
|
|
|
1953 static void
|
|
|
1954 MakeSizeRequest(TabsWidget tw)
|
|
|
1955 {
|
|
|
1956 Widget w = (Widget)tw ;
|
|
|
1957 XtWidgetGeometry request, reply ;
|
|
|
1958 XtGeometryResult result ;
|
|
|
1959 Dimension cw,ch ;
|
|
|
1960
|
|
|
1961 request.request_mode = CWWidth | CWHeight ;
|
|
|
1962 PreferredSize(tw, &request.width, &request.height, &cw, &ch) ;
|
|
|
1963
|
|
|
1964 if( request.width == tw->core.width &&
|
|
|
1965 request.height == tw->core.height )
|
|
|
1966 return ;
|
|
|
1967
|
|
|
1968 result = XtMakeGeometryRequest(w, &request, &reply) ;
|
|
|
1969
|
|
|
1970 if( result == XtGeometryAlmost )
|
|
|
1971 {
|
|
|
1972 /* Bugger. Didn't get what we want, but were offered a
|
|
|
1973 * compromise. If the width was too small, recompute
|
|
|
1974 * based on the too-small width and try again.
|
|
|
1975 * If the height was too small, make a wild-ass guess
|
|
|
1976 * at a wider width and try again.
|
|
|
1977 */
|
|
|
1978
|
|
|
1979 if( reply.width < request.width && reply.height >= request.height )
|
|
|
1980 {
|
|
|
1981 Dimension s = SHADWID ;
|
|
|
1982 ch += s*2 ;
|
|
|
1983 PreferredSize3(tw, reply.width,ch, &request.width, &request.height);
|
|
|
1984 result = XtMakeGeometryRequest(w, &request, &reply) ;
|
|
|
1985 if( result == XtGeometryAlmost )
|
|
|
1986 (void) XtMakeGeometryRequest(w, &reply, NULL) ;
|
|
|
1987 }
|
|
|
1988
|
|
|
1989 else
|
|
|
1990 (void) XtMakeGeometryRequest(w, &reply, NULL) ;
|
|
|
1991 }
|
|
|
1992 }
|
|
|
1993
|
|
|
1994
|
|
|
1995 static void
|
|
|
1996 getBitmapInfo(TabsWidget tw, TabsConstraints tab)
|
|
|
1997 {
|
|
|
1998 Window root ;
|
|
|
1999 int x,y ;
|
|
|
2000 unsigned int bw ;
|
|
|
2001
|
|
|
2002 if( tab->tabs.left_bitmap == None ||
|
|
|
2003 !XGetGeometry(XtDisplay(tw), tab->tabs.left_bitmap, &root, &x, &y,
|
|
|
2004 &tab->tabs.lbm_width, &tab->tabs.lbm_height,
|
|
|
2005 &bw, &tab->tabs.lbm_depth) )
|
|
|
2006 tab->tabs.lbm_width = tab->tabs.lbm_height = 0 ;
|
|
|
2007 }
|
|
|
2008
|
|
|
2009
|
|
|
2010
|
|
|
2011
|
|
|
2012 /* Code copied & modified from Gcs.c. This version has dynamic
|
|
|
2013 * foreground.
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2014 */
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2015
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2016 static void
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2017 TabsAllocFgGC(TabsWidget tw)
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2018 {
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2019 Widget w = (Widget) tw;
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2020 XGCValues values ;
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2021
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2022 values.background = tw->core.background_pixel ;
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2023 values.font = tw->tabs.font->fid ;
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2024 values.line_style = LineOnOffDash ;
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2025 values.line_style = LineSolid ;
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2026
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2027 tw->tabs.foregroundGC =
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2028 XtAllocateGC(w, w->core.depth,
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2029 GCBackground|GCFont|GCLineStyle, &values,
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2030 GCForeground,
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2031 GCSubwindowMode|GCGraphicsExposures|GCDashOffset|
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2032 GCDashList|GCArcMode) ;
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2033 }
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2034
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2035 static void
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2036 TabsAllocGreyGC(TabsWidget tw)
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2037 {
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2038 Widget w = (Widget) tw;
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2039 XGCValues values ;
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2040
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2041 values.background = tw->core.background_pixel ;
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2042 values.font = tw->tabs.font->fid ;
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2043 #ifdef HAVE_XMU
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2044 if( tw->tabs.be_nice_to_cmap || w->core.depth == 1)
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2045 {
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2046 values.fill_style = FillStippled ;
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2047 tw->tabs.grey50 =
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2048 values.stipple = XmuCreateStippledPixmap(XtScreen(w), 1L, 0L, 1) ;
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2049
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2050 tw->tabs.greyGC =
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2051 XtAllocateGC(w, w->core.depth,
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2052 GCBackground|GCFont|GCStipple|GCFillStyle, &values,
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2053 GCForeground,
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2054 GCSubwindowMode|GCGraphicsExposures|GCDashOffset|
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2055 GCDashList|GCArcMode) ;
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2056 }
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2057 else
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2058 #endif
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2059 {
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2060 tw->tabs.greyGC =
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2061 XtAllocateGC(w, w->core.depth,
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2062 GCFont, &values,
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2063 GCForeground,
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2064 GCBackground|GCSubwindowMode|GCGraphicsExposures|GCDashOffset|
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2065 GCDashList|GCArcMode) ;
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2066 }
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2067 }
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