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428
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1 /* Implements a lightweight scrollbar widget.
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2 Copyright (C) 1992, 1993, 1994 Lucid, Inc.
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3 Copyright (C) 1997 Sun Microsystems, Inc.
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4
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5 This file is part of the Lucid Widget Library.
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6
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7 The Lucid Widget Library is free software; you can redistribute it and/or
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8 modify it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 2, or (at your option)
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10 any later version.
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11
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12 The Lucid Widget Library is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Created by Douglas Keller <dkeller@vnet.ibm.com> */
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23 /* Lots of hacking by Martin Buchholz */
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24
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25 /*
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26 * Athena-style scrollbar button bindings added on Sun Dec 24 22:03:57 1995
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27 * by Jonathan Stigelman <Stig@hackvan.com>... Ho ho ho!
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28 *
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1389
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29 * To use them, put this resource in your .Xresources
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428
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30 *
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31 * Emacs*XlwScrollBar.translations: #override \n\
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32 * <Btn1Down>: PageDownOrRight() \n\
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766
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33 * <Btn3Down>: PageUpOrLeft() \n\
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34 * <Btn3Up>: Release()
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428
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35 *
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36 */
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37
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38 /*
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39 * Resources Supported:
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40 * XmNforeground
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41 * XmNbackground
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42 * XmNtopShadowColor
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43 * XmNtopShadowPixmap
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44 * XmNbottomShadowColor
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45 * XmNbottomShadowPixmap
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46 * XmNtroughColor
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47 * XmNshadowThickness
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48 * XmNshowArrows
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49 * XmNorientation
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50 * XmNborderWidth
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51 *
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52 * XmNminimum
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53 * XmNmaximum
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54 * XmNvalue
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55 * XmNincrement
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56 * XmNpageIncrement
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57 *
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58 * XmNvalueChangedCallback
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59 * XmNincrementCallback
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60 * XmNdecrementCallback
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61 * XmNpageIncrementCallback
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62 * XmNpageDecrementCallback
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63 * XmNtoTopCallback
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64 * XmNtoBottomCallback
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65 * XmNdragCallback
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66 *
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67 * XmNsliderStyle - values can be: "plain" or "dimple"
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68 * XmNarrowPosition - values can be: "opposite" or "same"
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69 *
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70 */
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71
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72 #include <config.h>
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73 #include <stdio.h>
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74 #include <stdlib.h>
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75 #include <limits.h>
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76
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77 #include <X11/IntrinsicP.h>
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78 #include <X11/StringDefs.h>
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79 #include <X11/bitmaps/gray>
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80
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3094
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81 #include "lwlib-colors.h"
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82
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428
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83 #include "xlwscrollbarP.h"
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84 #include "xlwscrollbar.h"
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85
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86 #ifdef USE_DEBUG_MALLOC
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87 #include <dmalloc.h>
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88 #endif
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89
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90 #define DBUG(x)
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91
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92 #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \
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93 ? ((unsigned long) (x)) : ((unsigned long) (y)))
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94
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95 #define VERT(w) ((w)->sb.orientation == XmVERTICAL)
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96
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97 #define SS_MIN 8
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98
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99 typedef enum
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100 {
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101 BUTTON_NONE,
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102 BUTTON_SLIDER,
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103 BUTTON_UP_ARROW,
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104 BUTTON_DOWN_ARROW,
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105 BUTTON_TROUGH_ABOVE,
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106 BUTTON_TROUGH_BELOW
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107 } button_where;
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108
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109 typedef enum
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110 {
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111 SLIDER_PLAIN,
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112 SLIDER_DIMPLE
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113 } SliderStyle;
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114
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115 /*-------------------------- Resources ----------------------------------*/
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116 #define offset(field) XtOffset(XlwScrollBarWidget, field)
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117
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118 static XtResource resources[] = {
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119 { XmNforeground, XmCForeground, XtRPixel, sizeof(Pixel),
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120 offset(sb.foreground), XtRImmediate, (XtPointer) XtDefaultForeground },
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121
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122 { XmNtopShadowColor, XmCTopShadowColor, XtRPixel,
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123 sizeof(Pixel), offset(sb.topShadowColor), XtRImmediate, (XtPointer) ~0 },
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124 { XmNbottomShadowColor, XmCBottomShadowColor, XtRPixel,
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125 sizeof(Pixel), offset(sb.bottomShadowColor), XtRImmediate,
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126 (XtPointer)~0 },
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127
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128 { XmNtopShadowPixmap, XmCTopShadowPixmap, XtRPixmap,
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129 sizeof (Pixmap), offset(sb.topShadowPixmap), XtRImmediate,
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130 (XtPointer)None},
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131 { XmNbottomShadowPixmap, XmCBottomShadowPixmap,
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132 XtRPixmap, sizeof (Pixmap), offset(sb.bottomShadowPixmap),
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133 XtRImmediate, (XtPointer)None},
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134
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135 { XmNtroughColor, XmCTroughColor, XtRPixel, sizeof(Pixel),
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136 offset(sb.troughColor), XtRImmediate, (XtPointer)~0 },
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137
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138 { XmNshadowThickness, XmCShadowThickness, XtRInt,
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139 sizeof(int), offset(sb.shadowThickness), XtRImmediate, (XtPointer)2 },
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140
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141 { XmNborderWidth, XmCBorderWidth, XtRDimension,
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142 sizeof(Dimension), offset(core.border_width), XtRImmediate,
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143 (XtPointer)0 },
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144
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145 { XmNshowArrows, XmCShowArrows, XtRBoolean,
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146 sizeof(Boolean), offset(sb.showArrows), XtRImmediate, (XtPointer)True },
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147
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148 { XmNinitialDelay, XmCInitialDelay, XtRInt, sizeof(int),
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149 offset(sb.initialDelay), XtRImmediate, (XtPointer) 250 },
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150 { XmNrepeatDelay, XmCRepeatDelay, XtRInt, sizeof(int),
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151 offset(sb.repeatDelay), XtRImmediate, (XtPointer) 50 },
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152
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153 { XmNorientation, XmCOrientation, XtROrientation,
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154 sizeof(unsigned char), offset(sb.orientation), XtRImmediate,
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155 (XtPointer) XmVERTICAL },
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156
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157 { XmNminimum, XmCMinimum, XtRInt, sizeof(int),
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158 offset(sb.minimum), XtRImmediate, (XtPointer) 0},
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159 { XmNmaximum, XmCMaximum, XtRInt, sizeof(int),
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160 offset(sb.maximum), XtRImmediate, (XtPointer) 100},
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161 { XmNvalue, XmCValue, XtRInt, sizeof(int),
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162 offset(sb.value), XtRImmediate, (XtPointer) 0},
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163 { XmNsliderSize, XmCSliderSize, XtRInt, sizeof(int),
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164 offset(sb.sliderSize), XtRImmediate, (XtPointer) 10},
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165 { XmNincrement, XmCIncrement, XtRInt, sizeof(int),
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166 offset(sb.increment), XtRImmediate, (XtPointer) 1},
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167 { XmNpageIncrement, XmCPageIncrement, XtRInt, sizeof(int),
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168 offset(sb.pageIncrement), XtRImmediate, (XtPointer) 10},
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169
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170 { XmNvalueChangedCallback, XmCValueChangedCallback,
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171 XtRCallback, sizeof(XtPointer), offset(sb.valueChangedCBL),
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172 XtRCallback, NULL},
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173 { XmNincrementCallback, XmCIncrementCallback,
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174 XtRCallback, sizeof(XtPointer), offset(sb.incrementCBL),
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175 XtRCallback, NULL},
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176 { XmNdecrementCallback, XmCDecrementCallback,
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177 XtRCallback, sizeof(XtPointer), offset(sb.decrementCBL),
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178 XtRCallback, NULL},
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179 { XmNpageIncrementCallback, XmCPageIncrementCallback,
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180 XtRCallback, sizeof(XtPointer), offset(sb.pageIncrementCBL),
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181 XtRCallback, NULL},
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182 { XmNpageDecrementCallback, XmCPageDecrementCallback,
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183 XtRCallback, sizeof(XtPointer), offset(sb.pageDecrementCBL),
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184 XtRCallback, NULL},
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185 { XmNtoTopCallback, XmCToTopCallback, XtRCallback,
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186 sizeof(XtPointer), offset(sb.toTopCBL), XtRCallback, NULL},
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187 { XmNtoBottomCallback, XmCToBottomCallback, XtRCallback,
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188 sizeof(XtPointer), offset(sb.toBottomCBL), XtRCallback, NULL},
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189 { XmNdragCallback, XmCDragCallback, XtRCallback,
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190 sizeof(XtPointer), offset(sb.dragCBL), XtRCallback, NULL},
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191
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192 /* "knob" is obsolete; use "slider" instead. */
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193 { XmNsliderStyle, XmCSliderStyle, XtRString, sizeof(char *),
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194 offset(sb.sliderStyle), XtRImmediate, NULL},
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195 { XmNknobStyle, XmCKnobStyle, XtRString, sizeof(char *),
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196 offset(sb.knobStyle), XtRImmediate, NULL},
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197
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198 { XmNarrowPosition, XmCArrowPosition, XtRString, sizeof(char *),
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199 offset(sb.arrowPosition), XtRImmediate, NULL},
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200 };
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201
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202 /*-------------------------- Prototypes ---------------------------------*/
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203
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204 /* Actions */
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205 typedef void Action(Widget w, XEvent *event, String *parms, Cardinal *num_parms);
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206 static Action Select, PageUpOrLeft, PageDownOrRight, Drag, Release, Jump, Abort;
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207
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208 /* Methods */
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209 static void Initialize(Widget treq, Widget tnew, ArgList args, Cardinal *num_args);
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210 static Boolean SetValues(Widget current, Widget request, Widget nw, ArgList args, Cardinal *num_args);
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211 static void Destroy(Widget widget);
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212 static void Redisplay(Widget widget, XEvent *event, Region region);
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213 static void Resize(Widget widget);
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214 static void Realize(Widget widget, XtValueMask *valuemask, XSetWindowAttributes *attr);
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215
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216 /* Private */
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217
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218 /*-------------------------- Actions Table ------------------------------*/
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219 static XtActionsRec actions[] =
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220 {
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221 {"Select", Select},
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222 {"PageDownOrRight", PageDownOrRight},
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223 {"PageUpOrLeft", PageUpOrLeft},
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224 {"Drag", Drag},
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225 {"Release", Release},
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226 {"Jump", Jump},
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227 {"Abort", Abort},
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228 };
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229
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230 /*--------------------- Default Translation Table -----------------------*/
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231 static char default_translations[] =
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232 "<Btn1Down>: Select()\n"
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233 "<Btn1Motion>: Drag()\n"
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234 "<Btn1Up>: Release()\n"
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235 "<Btn2Down>: Jump()\n"
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236 "<Btn2Motion>: Drag()\n"
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237 "<Btn2Up>: Release()\n"
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238 "<Key>Delete: Abort()"
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239 ;
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240
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241 /*------------------- Class record initialization -----------------------*/
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242 XlwScrollBarClassRec xlwScrollBarClassRec = {
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243 /* core_class fields */
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244 {
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245 /* superclass */ (WidgetClass) &coreClassRec,
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246 /* class_name */ "XlwScrollBar",
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247 /* widget_size */ sizeof(XlwScrollBarRec),
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248 /* class_initialize */ NULL,
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249 /* class_part_init */ NULL,
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250 /* class_inited */ False,
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251 /* initialize */ Initialize,
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252 /* initialize_hook */ NULL,
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253 /* realize */ Realize,
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254 /* actions */ actions,
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255 /* num_actions */ XtNumber(actions),
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256 /* resources */ resources,
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257 /* num_resources */ XtNumber(resources),
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258 /* xrm_class */ NULLQUARK,
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259 /* compress_motion */ True,
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260 /* compress_exposure */ XtExposeCompressMultiple,
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261 /* compress_enterleave */ True,
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262 /* visible_interest */ False,
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263 /* destroy */ Destroy,
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264 /* resize */ Resize,
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265 /* expose */ Redisplay,
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266 /* set_values */ SetValues,
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267 /* set_values_hook */ NULL,
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268 /* set_values_almost */ XtInheritSetValuesAlmost,
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269 /* get_values_hook */ NULL,
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270 /* accept_focus */ NULL,
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271 /* version */ XtVersionDontCheck,
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272 /* callback_private */ NULL,
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273 /* tm_table */ default_translations,
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274 /* query_geometry */ NULL,
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275 },
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276 /* scrollbar_class fields */
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277 {
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278 /* dummy_field */ 0,
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279 },
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280 };
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281
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282 WidgetClass xlwScrollBarWidgetClass = (WidgetClass) &xlwScrollBarClassRec;
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283
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284 /*-------------------------- Debug Functions ----------------------------*/
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285
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286 #ifdef SHOW_CLEAR
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287 static void
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288 myXClearArea(Display *dpy, Drawable d, int x, int y, int w, int h,
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289 Boolean exp, XlwScrollBarWidget widget)
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290 {
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291 XFillRectangle (dpy, d, widget->sb.topShadowGC, x, y, w, h);
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292 XSync (dpy, False);
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293 sleep (2);
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294 XClearArea (dpy, d, x, y, w, h, exp);
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295 }
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296
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297 #define XClearArea(dpy,win,x,y,width,height,exp) myXClearArea(dpy,win,x,y,width,height,exp,w)
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298 #endif
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299
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300 #ifdef CHECK_VALUES
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301 static void
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302 check(XlwScrollBarWidget w)
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303 {
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304 int height = widget_h (w);
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305 if (w->sb.showArrows)
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306 height -= (2 * arrow_h (w));
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307
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308 if ((w->sb.above + w->sb.ss + w->sb.below > height) ||
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309 (w->sb.value < w->sb.minimum) ||
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310 (w->sb.value > w->sb.maximum - w->sb.sliderSize))
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311 {
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312 printf("above=%d ss=%d below=%d height=%d\n",
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313 w->sb.above, w->sb.ss, w->sb.below, height);
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314 printf("value=%d min=%d max=%d ss=%d max-ss=%d\n",
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315 w->sb.value, w->sb.minimum, w->sb.maximum,
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316 w->sb.sliderSize, w->sb.maximum - w->sb.sliderSize);
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317 abort();
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318 }
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319 }
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320
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321 # define CHECK(w) check(w)
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322 #else
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323 # define CHECK(w)
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324 #endif
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325
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326 /*-------------------------- Static functions ---------------------------*/
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327
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328 static void
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329 call_callbacks (XlwScrollBarWidget w, int reason,
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330 int value, int pixel, XEvent *event)
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331 {
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332 XlwScrollBarCallbackStruct cbs;
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333 Boolean called_anything;
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334
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335 cbs.reason = reason;
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336 cbs.event = event;
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337 cbs.value = value;
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338 cbs.pixel = pixel;
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339
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340 called_anything = False;
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341
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342 switch (reason)
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343 {
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344 case XmCR_VALUE_CHANGED:
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345 XtCallCallbackList ((Widget) w, w->sb.valueChangedCBL, &cbs);
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346 called_anything = True;
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347 break;
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348 case XmCR_INCREMENT:
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349 if (w->sb.incrementCBL)
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350 {
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351 XtCallCallbackList ((Widget) w, w->sb.incrementCBL, &cbs);
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352 called_anything = True;
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353 }
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354 break;
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355 case XmCR_DECREMENT:
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356 if (w->sb.decrementCBL)
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357 {
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358 XtCallCallbackList ((Widget) w, w->sb.decrementCBL, &cbs);
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359 called_anything = True;
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360 }
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361 break;
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362 case XmCR_PAGE_INCREMENT:
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363 if (w->sb.incrementCBL)
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364 {
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365 XtCallCallbackList ((Widget) w, w->sb.pageIncrementCBL, &cbs);
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366 called_anything = True;
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367 }
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368 break;
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369 case XmCR_PAGE_DECREMENT:
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370 if (w->sb.decrementCBL)
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371 {
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372 XtCallCallbackList ((Widget) w, w->sb.pageDecrementCBL, &cbs);
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373 called_anything = True;
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374 }
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375 break;
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376 case XmCR_TO_TOP:
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377 if (w->sb.toTopCBL)
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378 {
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379 XtCallCallbackList ((Widget) w, w->sb.toTopCBL, &cbs);
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380 called_anything = True;
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|
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381 }
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382 break;
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383 case XmCR_TO_BOTTOM:
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|
|
384 if (w->sb.toBottomCBL)
|
|
|
385 {
|
|
|
386 XtCallCallbackList ((Widget) w, w->sb.toBottomCBL, &cbs);
|
|
|
387 called_anything = True;
|
|
|
388 }
|
|
|
389 break;
|
|
|
390 case XmCR_DRAG:
|
|
|
391 if (w->sb.dragCBL)
|
|
|
392 {
|
|
|
393 XtCallCallbackList ((Widget) w, w->sb.dragCBL, &cbs);
|
|
|
394 }
|
|
|
395 called_anything = True; /* Special Case */
|
|
|
396 break;
|
|
|
397 }
|
|
|
398
|
|
|
399 if (!called_anything)
|
|
|
400 {
|
|
|
401 cbs.reason = XmCR_VALUE_CHANGED;
|
|
|
402 XtCallCallbackList ((Widget) w, w->sb.valueChangedCBL, &cbs);
|
|
|
403 }
|
|
|
404 }
|
|
|
405
|
|
|
406 /* Widget sizes minus the shadow and highlight area */
|
|
|
407
|
|
|
408 static int
|
|
|
409 widget_x (XlwScrollBarWidget w)
|
|
|
410 {
|
|
|
411 return w->sb.shadowThickness;
|
|
|
412 }
|
|
|
413
|
|
|
414 static int
|
|
|
415 widget_y (XlwScrollBarWidget w)
|
|
|
416 {
|
|
|
417 return w->sb.shadowThickness;
|
|
|
418 }
|
|
|
419
|
|
|
420 static int
|
|
|
421 widget_w (XlwScrollBarWidget w)
|
|
|
422 {
|
|
|
423 int x = w->sb.shadowThickness;
|
|
|
424 int width = (VERT (w) ? w->core.width : w->core.height) - (2 * x);
|
|
|
425 return width > 1 ? width : 1;
|
|
|
426 }
|
|
|
427
|
|
|
428 static int
|
|
|
429 widget_h (XlwScrollBarWidget w)
|
|
|
430 {
|
|
|
431 int y = w->sb.shadowThickness;
|
|
|
432 int height = (VERT (w) ? w->core.height : w->core.width) - (2 * y);
|
|
|
433
|
|
|
434 return height > 1 ? height : 1;
|
|
|
435 }
|
|
|
436
|
|
|
437 static int
|
|
|
438 arrow_h (XlwScrollBarWidget w)
|
|
|
439 {
|
|
|
440 int width = widget_w (w);
|
|
|
441 int minimum_size = ((widget_h (w) - SS_MIN) / 2) - 1;
|
|
|
442 return minimum_size < width ? minimum_size : width;
|
|
|
443 }
|
|
|
444
|
|
|
445 static int
|
|
|
446 event_x (XlwScrollBarWidget w, XEvent *event)
|
|
|
447 {
|
|
|
448 return VERT (w) ? event->xbutton.x : event->xbutton.y;
|
|
|
449 }
|
|
|
450
|
|
|
451 static int
|
|
|
452 event_y (XlwScrollBarWidget w, XEvent *event)
|
|
|
453 {
|
|
|
454 return VERT (w) ? event->xbutton.y : event->xbutton.x;
|
|
|
455 }
|
|
|
456
|
|
|
457 /* Safe addition and subtraction */
|
|
|
458 static void
|
|
|
459 increment_value (XlwScrollBarWidget w, int diff)
|
|
|
460 {
|
|
|
461 w->sb.value = w->sb.maximum - diff < w->sb.value ?
|
|
|
462 w->sb.maximum :
|
|
|
463 w->sb.value + diff;
|
|
|
464 }
|
|
|
465
|
|
|
466 static void
|
|
|
467 decrement_value (XlwScrollBarWidget w, int diff)
|
|
|
468 {
|
|
|
469 w->sb.value = w->sb.minimum + diff > w->sb.value ?
|
|
|
470 w->sb.minimum :
|
|
|
471 w->sb.value - diff;
|
|
|
472 }
|
|
|
473
|
|
|
474 static SliderStyle
|
|
|
475 slider_style (XlwScrollBarWidget w)
|
|
|
476 {
|
|
|
477 return (w->sb.sliderStyle ? w->sb.sliderStyle[0] == 'd' :
|
|
|
478 w->sb.knobStyle ? w->sb.knobStyle[0] == 'd' :
|
|
|
479 0) ?
|
|
|
480 SLIDER_DIMPLE :
|
|
|
481 SLIDER_PLAIN;
|
|
|
482 }
|
|
|
483
|
|
|
484 static Boolean
|
|
|
485 arrow_same_end (XlwScrollBarWidget w)
|
|
|
486 {
|
|
|
487 return w->sb.arrowPosition && w->sb.arrowPosition[0] == 's' ? True : False;
|
|
|
488 }
|
|
|
489
|
|
|
490 /*-------------------------- GC and Pixel allocation --------------------*/
|
|
|
491 #ifndef XmUNSPECIFIED_PIXMAP
|
|
|
492 #define XmUNSPECIFIED_PIXMAP 2
|
|
|
493 #endif
|
|
|
494
|
|
|
495 static GC
|
|
|
496 get_gc (XlwScrollBarWidget w, Pixel fg, Pixel bg, Pixmap pm)
|
|
|
497 {
|
|
|
498 XGCValues values;
|
|
|
499 XtGCMask mask;
|
|
|
500
|
|
|
501 if (pm == w->sb.grayPixmap)
|
|
|
502 {
|
|
|
503 /* If we're using the gray pixmap, guarantee white on black ...
|
|
|
504 * otherwise, we could end up with something odd like grey on white
|
|
|
505 * when we're on a color display that ran out of color cells
|
|
|
506 */
|
|
|
507
|
|
|
508 fg = WhitePixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w)));
|
|
|
509 bg = BlackPixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w)));
|
|
|
510 }
|
|
|
511
|
|
|
512 values.foreground = fg;
|
|
|
513 values.background = bg;
|
|
|
514 values.fill_style = FillOpaqueStippled;
|
|
|
515 values.stipple = pm;
|
|
|
516 /* mask = GCForeground | GCBackground |
|
|
|
517 (pm == None ? 0 : GCStipple | GCFillStyle); gtb */
|
|
|
518 if (pm != None && pm != 0 && pm != XmUNSPECIFIED_PIXMAP)
|
|
|
519 values.stipple = pm;
|
|
|
520 else
|
|
|
521 values.stipple = None;
|
|
|
522 mask = GCForeground | GCBackground |
|
|
|
523 (values.stipple == None ? 0 : GCStipple | GCFillStyle);
|
|
|
524
|
|
|
525 return XtGetGC((Widget) w, mask, &values);
|
|
|
526 }
|
|
|
527
|
|
|
528 static void
|
|
|
529 make_shadow_pixels (XlwScrollBarWidget w)
|
|
|
530 {
|
|
3094
|
531 Display *dpy = XtDisplay ((Widget) w);
|
|
428
|
532 Colormap cmap = w->core.colormap;
|
|
|
533 XColor topc, botc;
|
|
|
534 int top_frobbed, bottom_frobbed;
|
|
|
535 Pixel bg, fg;
|
|
3094
|
536 Visual *visual;
|
|
|
537 int ignored;
|
|
|
538
|
|
|
539 visual_info_from_widget ((Widget) w, &visual, &ignored);
|
|
|
540 /* #### Apparently this is called before any shell has a visual?
|
|
|
541 or maybe the widget doesn't have a parent yet? */
|
|
|
542 if (visual == CopyFromParent)
|
|
|
543 {
|
|
|
544 Screen *screen = DefaultScreenOfDisplay (dpy);
|
|
|
545 visual = DefaultVisualOfScreen (screen);
|
|
|
546 }
|
|
428
|
547
|
|
|
548 top_frobbed = bottom_frobbed = 0;
|
|
|
549
|
|
|
550 bg = w->core.background_pixel;
|
|
|
551 fg = w->sb.foreground;
|
|
|
552
|
|
|
553 if (w->sb.topShadowColor == (Pixel)~0) w->sb.topShadowColor = bg;
|
|
|
554 if (w->sb.bottomShadowColor == (Pixel)~0) w->sb.bottomShadowColor = fg;
|
|
|
555
|
|
|
556 if (w->sb.topShadowColor == bg || w->sb.topShadowColor == fg)
|
|
|
557 {
|
|
|
558 topc.pixel = bg;
|
|
|
559 XQueryColor (dpy, cmap, &topc);
|
|
3094
|
560 /* #### can we use a (generalized) xft_convert_color here? */
|
|
428
|
561 /* don't overflow/wrap! */
|
|
|
562 topc.red = MINL(65535, topc.red * 1.2);
|
|
|
563 topc.green = MINL(65535, topc.green * 1.2);
|
|
|
564 topc.blue = MINL(65535, topc.blue * 1.2);
|
|
3094
|
565 if (x_allocate_nearest_color (dpy, cmap, visual, &topc))
|
|
428
|
566 {
|
|
|
567 if (topc.pixel == bg)
|
|
|
568 {
|
|
|
569 XFreeColors (dpy, cmap, &topc.pixel, 1, 0);
|
|
|
570 topc.red = MINL(65535, topc.red + 0x8000);
|
|
|
571 topc.green = MINL(65535, topc.green + 0x8000);
|
|
|
572 topc.blue = MINL(65535, topc.blue + 0x8000);
|
|
3094
|
573 if (x_allocate_nearest_color (dpy, cmap, visual, &topc))
|
|
428
|
574 {
|
|
|
575 w->sb.topShadowColor = topc.pixel;
|
|
|
576 }
|
|
|
577 }
|
|
|
578 else
|
|
|
579 {
|
|
|
580 w->sb.topShadowColor = topc.pixel;
|
|
|
581 }
|
|
|
582
|
|
|
583 top_frobbed = 1;
|
|
|
584 }
|
|
|
585 }
|
|
|
586
|
|
|
587 if (w->sb.bottomShadowColor == fg || w->sb.bottomShadowColor == bg)
|
|
|
588 {
|
|
|
589 botc.pixel = bg;
|
|
|
590 XQueryColor (dpy, cmap, &botc);
|
|
|
591 botc.red = (botc.red * 3) / 5;
|
|
|
592 botc.green = (botc.green * 3) / 5;
|
|
|
593 botc.blue = (botc.blue * 3) / 5;
|
|
3094
|
594 if (x_allocate_nearest_color (dpy, cmap, visual, &botc))
|
|
428
|
595 {
|
|
|
596 if (botc.pixel == bg)
|
|
|
597 {
|
|
|
598 XFreeColors (dpy, cmap, &botc.pixel, 1, 0);
|
|
|
599 botc.red = MINL(65535, botc.red + 0x4000);
|
|
|
600 botc.green = MINL(65535, botc.green + 0x4000);
|
|
|
601 botc.blue = MINL(65535, botc.blue + 0x4000);
|
|
3094
|
602 if (x_allocate_nearest_color (dpy, cmap, visual, &botc))
|
|
428
|
603 {
|
|
|
604 w->sb.bottomShadowColor = botc.pixel;
|
|
|
605 }
|
|
|
606 }
|
|
|
607 else
|
|
|
608 {
|
|
|
609 w->sb.bottomShadowColor = botc.pixel;
|
|
|
610 }
|
|
|
611 bottom_frobbed = 1;
|
|
|
612 }
|
|
|
613 }
|
|
|
614
|
|
|
615 if (top_frobbed && bottom_frobbed)
|
|
|
616 {
|
|
|
617 int top_avg = ((topc.red / 3) + (topc.green / 3) + (topc.blue / 3));
|
|
|
618 int bot_avg = ((botc.red / 3) + (botc.green / 3) + (botc.blue / 3));
|
|
|
619 if (bot_avg > top_avg)
|
|
|
620 {
|
|
|
621 Pixel tmp = w->sb.topShadowColor;
|
|
|
622 w->sb.topShadowColor = w->sb.bottomShadowColor;
|
|
|
623 w->sb.bottomShadowColor = tmp;
|
|
|
624 }
|
|
|
625 else if (topc.pixel == botc.pixel)
|
|
|
626 {
|
|
|
627 if (botc.pixel == bg)
|
|
|
628 w->sb.topShadowColor = bg;
|
|
|
629 else
|
|
|
630 w->sb.bottomShadowColor = fg;
|
|
|
631 }
|
|
|
632 }
|
|
|
633
|
|
|
634 if (w->sb.topShadowColor == w->core.background_pixel ||
|
|
|
635 w->sb.bottomShadowColor == w->core.background_pixel)
|
|
|
636 {
|
|
|
637 /* Assume we're in mono. This code should be okay even if we're
|
|
|
638 * really in color but just short on color cells -- We want the
|
|
|
639 * following behavior, which has been empirically determined to
|
|
|
640 * work well for all fg/bg combinations in mono: If the trough
|
|
|
641 * and slider are BOTH black, then use a white top shadow and a
|
|
|
642 * grey bottom shadow, otherwise use a grey top shadow and a
|
|
|
643 * black bottom shadow.
|
|
|
644 */
|
|
|
645
|
|
|
646 Pixel white = WhitePixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w)));
|
|
|
647 Pixel black = BlackPixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w)));
|
|
|
648
|
|
|
649 /* Note: core.background_pixel is the color of the slider ... */
|
|
|
650
|
|
|
651 if (w->core.background_pixel == black &&
|
|
|
652 w->sb.troughColor == black)
|
|
|
653 {
|
|
|
654 w->sb.topShadowColor = white;
|
|
|
655 w->sb.bottomShadowPixmap = w->sb.grayPixmap;
|
|
|
656 } else {
|
|
|
657 w->sb.topShadowPixmap = w->sb.grayPixmap;
|
|
|
658 w->sb.bottomShadowColor = black;
|
|
|
659 }
|
|
|
660 }
|
|
|
661 }
|
|
|
662
|
|
|
663 static void
|
|
|
664 make_trough_pixel (XlwScrollBarWidget w)
|
|
|
665 {
|
|
|
666 Display *dpy = XtDisplay((Widget) w);
|
|
|
667 Colormap cmap = w->core.colormap;
|
|
|
668 XColor troughC;
|
|
3094
|
669 Visual *visual;
|
|
|
670 int ignored;
|
|
|
671
|
|
|
672 visual_info_from_widget ((Widget) w, &visual, &ignored);
|
|
|
673 /* #### Apparently this is called before any shell has a visual?
|
|
|
674 or maybe the widget doesn't have a parent yet? */
|
|
|
675 if (visual == CopyFromParent)
|
|
|
676 {
|
|
|
677 Screen *screen = DefaultScreenOfDisplay (dpy);
|
|
|
678 visual = DefaultVisualOfScreen (screen);
|
|
|
679 }
|
|
428
|
680
|
|
|
681 if (w->sb.troughColor == (Pixel)~0) w->sb.troughColor = w->core.background_pixel;
|
|
|
682
|
|
|
683 if (w->sb.troughColor == w->core.background_pixel)
|
|
|
684 {
|
|
|
685 troughC.pixel = w->core.background_pixel;
|
|
|
686 XQueryColor (dpy, cmap, &troughC);
|
|
|
687 troughC.red = (troughC.red * 4) / 5;
|
|
|
688 troughC.green = (troughC.green * 4) / 5;
|
|
|
689 troughC.blue = (troughC.blue * 4) / 5;
|
|
3094
|
690 if (x_allocate_nearest_color (dpy, cmap, visual, &troughC))
|
|
428
|
691 w->sb.troughColor = troughC.pixel;
|
|
|
692 }
|
|
|
693 }
|
|
|
694
|
|
|
695 /*-------------------------- Draw 3D Border -----------------------------*/
|
|
|
696 static void
|
|
|
697 draw_shadows (Display *dpy, Drawable d, GC shine_gc, GC shadow_gc,
|
|
|
698 int x, int y, int width, int height, int shadowT)
|
|
|
699 {
|
|
|
700 XSegment shine[10], shadow[10];
|
|
|
701 int i;
|
|
|
702
|
|
|
703 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
704 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
705 if (shadowT <= 0) return;
|
|
|
706
|
|
|
707 for (i = 0; i < shadowT; i++)
|
|
|
708 {
|
|
|
709 /* Top segments */
|
|
|
710 shine[i].x1 = x;
|
|
|
711 shine[i].y2 = shine[i].y1 = y + i;
|
|
|
712 shine[i].x2 = x + width - i - 1;
|
|
|
713 /* Left segments */
|
|
|
714 shine[i + shadowT].x2 = shine[i + shadowT].x1 = x + i;
|
|
|
715 shine[i + shadowT].y1 = y + shadowT;
|
|
|
716 shine[i + shadowT].y2 = y + height - i - 1;
|
|
|
717
|
|
|
718 /* Bottom segments */
|
|
|
719 shadow[i].x1 = x + i;
|
|
|
720 shadow[i].y2 = shadow[i].y1 = y + height - i - 1;
|
|
|
721 shadow[i].x2 = x + width - 1 ;
|
|
|
722 /* Right segments */
|
|
|
723 shadow[i + shadowT].x2 = shadow[i + shadowT].x1 = x + width - i - 1;
|
|
|
724 shadow[i + shadowT].y1 = y + i + 1;
|
|
|
725 shadow[i + shadowT].y2 = y + height - 1 ;
|
|
|
726 }
|
|
|
727
|
|
|
728 XDrawSegments (dpy, d, shine_gc, shine, shadowT * 2);
|
|
|
729 XDrawSegments (dpy, d, shadow_gc, shadow, shadowT * 2);
|
|
|
730 }
|
|
|
731
|
|
|
732 /*------------------ Draw 3D Arrows: left, up, down, right --------------*/
|
|
|
733 static int
|
|
|
734 make_vert_seg (XSegment *seg, int x1, int y1, int x2, int y2, int shadowT)
|
|
|
735 {
|
|
|
736 int i;
|
|
|
737
|
|
|
738 for (i=0; i<shadowT; i++, seg++)
|
|
|
739 {
|
|
|
740 seg->x1 = x1;
|
|
|
741 seg->y1 = y1++;
|
|
|
742 seg->x2 = x2;
|
|
|
743 seg->y2 = y2++;
|
|
|
744 }
|
|
|
745 return shadowT;
|
|
|
746 }
|
|
|
747
|
|
|
748 static int
|
|
|
749 make_hor_seg (XSegment *seg, int x1, int y1, int x2, int y2, int shadowT)
|
|
|
750 {
|
|
|
751 int i;
|
|
|
752
|
|
|
753 for (i=0; i<shadowT; i++, seg++)
|
|
|
754 {
|
|
|
755 seg->x1 = x1++;
|
|
|
756 seg->y1 = y1;
|
|
|
757 seg->x2 = x2++;
|
|
|
758 seg->y2 = y2;
|
|
|
759 }
|
|
|
760 return shadowT;
|
|
|
761 }
|
|
|
762
|
|
|
763 static void
|
|
|
764 draw_arrow_up (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
765 int x, int y, int width, int height, int shadowT)
|
|
|
766 {
|
|
|
767 XSegment shine[10], shadow[10];
|
|
|
768 XPoint triangle[3];
|
|
|
769 int mid;
|
|
|
770
|
|
|
771 mid = width / 2;
|
|
|
772
|
|
|
773 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
774 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
775 if (shadowT < 0) shadowT = 0;
|
|
|
776
|
|
|
777 /* / */
|
|
|
778 make_vert_seg (shine,
|
|
|
779 x, y + height - shadowT - 1,
|
|
|
780 x + mid, y, shadowT);
|
|
|
781 /* _\ */
|
|
|
782 make_vert_seg (shadow,
|
|
|
783 x, y + height - shadowT - 1,
|
|
|
784 x + width - 1, y + height - shadowT - 1, shadowT);
|
|
|
785 make_vert_seg (shadow + shadowT,
|
|
|
786 x + mid, y,
|
|
|
787 x + width - 1, y + height - shadowT - 1, shadowT);
|
|
|
788
|
|
|
789 triangle[0].x = x;
|
|
|
790 triangle[0].y = y + height - 1;
|
|
|
791 triangle[1].x = x + mid;
|
|
|
792 triangle[1].y = y;
|
|
|
793 triangle[2].x = x + width - 1;
|
|
|
794 triangle[2].y = y + height - 1;
|
|
|
795
|
|
|
796 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord);
|
|
|
797
|
|
|
798 XDrawSegments (dpy, win, shadowGC, shadow, shadowT * 2);
|
|
|
799 XDrawSegments (dpy, win, shineGC, shine, shadowT);
|
|
|
800 }
|
|
|
801
|
|
|
802 static void
|
|
|
803 draw_arrow_left (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
804 int x, int y, int width, int height, int shadowT)
|
|
|
805 {
|
|
|
806 XSegment shine[10], shadow[10];
|
|
|
807 XPoint triangle[3];
|
|
|
808
|
|
|
809 int mid = width / 2;
|
|
|
810
|
|
|
811 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
812 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
813 if (shadowT < 0) shadowT = 0;
|
|
|
814
|
|
|
815 /* / */
|
|
|
816 make_hor_seg (shine,
|
|
|
817 x, y + mid,
|
|
|
818 x + width - shadowT - 1, y, shadowT);
|
|
|
819 /* \| */
|
|
|
820 make_hor_seg (shadow,
|
|
|
821 x, y + mid,
|
|
|
822 x + width - shadowT - 1, y + height - 1, shadowT);
|
|
|
823 make_hor_seg (shadow + shadowT,
|
|
|
824 x + width - shadowT - 1, y,
|
|
|
825 x + width - shadowT - 1, y + height - 1, shadowT);
|
|
|
826
|
|
|
827 triangle[0].x = x + width - 1;
|
|
|
828 triangle[0].y = y + height - 1;
|
|
|
829 triangle[1].x = x;
|
|
|
830 triangle[1].y = y + mid;
|
|
|
831 triangle[2].x = x + width - 1;
|
|
|
832 triangle[2].y = y;
|
|
|
833
|
|
|
834 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord);
|
|
|
835
|
|
|
836 XDrawSegments (dpy, win, shadowGC, shadow, shadowT * 2);
|
|
|
837 XDrawSegments (dpy, win, shineGC, shine, shadowT);
|
|
|
838 }
|
|
|
839
|
|
|
840 static void
|
|
|
841 draw_arrow_down (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
842 int x, int y, int width, int height, int shadowT)
|
|
|
843 {
|
|
|
844 XSegment shine[10], shadow[10];
|
|
|
845 XPoint triangle[3];
|
|
|
846 int mid;
|
|
|
847
|
|
|
848 mid = width / 2;
|
|
|
849
|
|
|
850 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
851 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
852 if (shadowT < 0) shadowT = 0;
|
|
|
853
|
|
|
854 /* \- */
|
|
|
855 make_vert_seg (shine,
|
|
|
856 x, y,
|
|
|
857 x + mid, y + height - shadowT - 1, shadowT);
|
|
|
858 make_vert_seg (shine + shadowT,
|
|
|
859 x, y,
|
|
|
860 x + width - 1, y, shadowT);
|
|
|
861 /* / */
|
|
|
862 make_vert_seg (shadow,
|
|
|
863 x + width - 1, y,
|
|
|
864 x + mid, y + height - shadowT - 1, shadowT);
|
|
|
865
|
|
|
866 triangle[0].x = x;
|
|
|
867 triangle[0].y = y;
|
|
|
868 triangle[1].x = x + mid;
|
|
|
869 triangle[1].y = y + height - 1;
|
|
|
870 triangle[2].x = x + width - 1;
|
|
|
871 triangle[2].y = y;
|
|
|
872
|
|
|
873 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord);
|
|
|
874
|
|
|
875 XDrawSegments (dpy, win, shadowGC, shadow, shadowT);
|
|
|
876 XDrawSegments (dpy, win, shineGC, shine, shadowT * 2);
|
|
|
877 }
|
|
|
878
|
|
|
879 static void
|
|
|
880 draw_arrow_right (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
881 int x, int y, int width, int height, int shadowT)
|
|
|
882 {
|
|
|
883 XSegment shine[10], shadow[10];
|
|
|
884 XPoint triangle[3];
|
|
|
885 int mid;
|
|
|
886
|
|
|
887 mid = width / 2;
|
|
|
888
|
|
|
889 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
890 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
891 if (shadowT < 0) shadowT = 0;
|
|
|
892
|
|
|
893 /* |\ */
|
|
|
894 make_hor_seg (shine,
|
|
|
895 x, y,
|
|
|
896 x + width - shadowT - 1, y + mid, shadowT);
|
|
|
897 make_hor_seg (shine + shadowT,
|
|
|
898 x, y,
|
|
|
899 x, y + height - 1, shadowT);
|
|
|
900 /* / */
|
|
|
901 make_hor_seg (shadow,
|
|
|
902 x, y + height - 1,
|
|
|
903 x + width - shadowT - 1, y + mid, shadowT);
|
|
|
904
|
|
|
905 triangle[0].x = x + 1;
|
|
|
906 triangle[0].y = y + height - 1;
|
|
|
907 triangle[1].x = x + width - 1;
|
|
|
908 triangle[1].y = y + mid;
|
|
|
909 triangle[2].x = x + 1;
|
|
|
910 triangle[2].y = y;
|
|
|
911
|
|
|
912 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord);
|
|
|
913
|
|
|
914 XDrawSegments (dpy, win, shadowGC, shadow, shadowT);
|
|
|
915 XDrawSegments (dpy, win, shineGC, shine, shadowT * 2);
|
|
|
916 }
|
|
|
917
|
|
|
918 static void
|
|
|
919 draw_dimple (Display *dpy, Drawable win, GC shine, GC shadow,
|
|
|
920 int x, int y, int width, int height)
|
|
|
921 {
|
|
|
922 XDrawArc (dpy, win, shine, x, y, width, height, 46*64, 180*64);
|
|
|
923 XDrawArc (dpy, win, shadow, x, y, width, height, 45*64, -179*64);
|
|
|
924 }
|
|
|
925
|
|
|
926 /*------- Scrollbar values -> pixels, pixels -> scrollbar values --------*/
|
|
|
927
|
|
|
928 static void
|
|
|
929 seg_pixel_sizes (XlwScrollBarWidget w, int *above_return,
|
|
|
930 int *ss_return, int *below_return)
|
|
|
931 {
|
|
|
932 float total, height, fuz;
|
|
|
933 int value, above, ss, below;
|
|
|
934
|
|
|
935 height = widget_h (w);
|
|
|
936 if (w->sb.showArrows) height -= (2 * arrow_h (w));
|
|
|
937
|
|
|
938 value = w->sb.value - w->sb.minimum;
|
|
|
939
|
|
|
940 total = w->sb.maximum - w->sb.minimum;
|
|
|
941 fuz = total / 2;
|
|
|
942
|
|
|
943 ss = (int) ((height * w->sb.sliderSize + fuz) / total);
|
|
|
944 above = (int) ((height * value + fuz) / total);
|
|
|
945 below = (int) ((height) - (ss + above));
|
|
|
946
|
|
|
947 /* Don't let slider get smaller than SS_MIN */
|
|
|
948 if (ss < SS_MIN)
|
|
|
949 {
|
|
|
950 /* add a percent amount for integer rounding */
|
|
434
|
951 float tmp = (((float) (SS_MIN - ss) * (float) value) / total) + 0.5;
|
|
428
|
952
|
|
|
953 above -= (int) tmp;
|
|
|
954 ss = SS_MIN;
|
|
|
955 below = (int) ((height) - (ss + above));
|
|
|
956
|
|
|
957 if (above < 0)
|
|
|
958 {
|
|
|
959 above = 0;
|
|
|
960 below = (int) (height - ss);
|
|
|
961 }
|
|
|
962 if (below < 0)
|
|
|
963 {
|
|
|
964 above = (int) (height - ss);
|
|
|
965 below = 0;
|
|
|
966 }
|
|
|
967 if (ss > height)
|
|
|
968 {
|
|
|
969 above = 0;
|
|
|
970 ss = (int) height;
|
|
|
971 below = 0;
|
|
|
972 }
|
|
|
973 }
|
|
|
974
|
|
|
975 *above_return = above;
|
|
|
976 *ss_return = ss;
|
|
|
977 *below_return = below;
|
|
|
978
|
|
|
979 CHECK (w);
|
|
|
980 }
|
|
|
981
|
|
|
982 static void
|
|
|
983 verify_values (XlwScrollBarWidget w)
|
|
|
984 {
|
|
|
985 int total = w->sb.maximum - w->sb.minimum;
|
|
|
986
|
|
|
987 if (w->sb.sliderSize > total)
|
|
|
988 w->sb.sliderSize = total;
|
|
|
989
|
|
|
990 if (w->sb.pageIncrement > total)
|
|
|
991 w->sb.pageIncrement = total;
|
|
|
992
|
|
|
993 if (w->sb.increment > total)
|
|
|
994 w->sb.increment = total;
|
|
|
995
|
|
|
996 if (w->sb.value < w->sb.minimum)
|
|
|
997 w->sb.value = w->sb.minimum;
|
|
|
998
|
|
|
999 if (w->sb.value > w->sb.maximum)
|
|
|
1000 w->sb.value = w->sb.maximum;
|
|
|
1001
|
|
|
1002 if (w->sb.sliderSize > w->sb.maximum - w->sb.value)
|
|
|
1003 w->sb.sliderSize = w->sb.maximum - w->sb.value;
|
|
|
1004 }
|
|
|
1005
|
|
|
1006 static int
|
|
|
1007 value_from_pixel (XlwScrollBarWidget w, int above)
|
|
|
1008 {
|
|
|
1009 float total, height, fuz;
|
|
|
1010 int value, ss;
|
|
|
1011
|
|
|
1012 height = widget_h (w);
|
|
|
1013 if (w->sb.showArrows)
|
|
|
1014 height -= (2 * arrow_h (w));
|
|
|
1015
|
|
|
1016 total = w->sb.maximum - w->sb.minimum;
|
|
|
1017 fuz = height / 2;
|
|
|
1018
|
|
|
1019 ss = (int) ((height * w->sb.sliderSize + (total / 2)) / total);
|
|
|
1020
|
|
|
1021 if (ss < SS_MIN)
|
|
|
1022 {
|
|
|
1023 /* add a percent amount for integer rounding */
|
|
|
1024 above += (int) ((((SS_MIN - ss) * above) + fuz) / height);
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 {
|
|
|
1028 /* Prevent SIGFPE's that would occur if we don't truncate the value. */
|
|
|
1029 float floatval = w->sb.minimum + ((float)(above * total + fuz) / height);
|
|
|
1030 if (floatval >= (float) INT_MAX)
|
|
|
1031 value = INT_MAX;
|
|
|
1032 else if (floatval <= (float) INT_MIN)
|
|
|
1033 value = INT_MIN;
|
|
|
1034 else
|
|
|
1035 value = (int) floatval;
|
|
|
1036 }
|
|
|
1037
|
|
|
1038 return value;
|
|
|
1039 }
|
|
|
1040
|
|
|
1041
|
|
|
1042 static void
|
|
|
1043 redraw_dimple (XlwScrollBarWidget w, Display *dpy, Window win,
|
|
|
1044 int x, int y, int width, int height)
|
|
|
1045 {
|
|
|
1046 if (SLIDER_DIMPLE == slider_style (w))
|
|
|
1047 {
|
|
|
1048 int size;
|
|
|
1049 int slider_p = (w->sb.armed == ARM_SLIDER);
|
|
|
1050 GC shine = slider_p ? w->sb.bottomShadowGC : w->sb.topShadowGC;
|
|
|
1051 GC shadow = slider_p ? w->sb.topShadowGC : w->sb.bottomShadowGC;
|
|
|
1052 int shadowT = w->sb.shadowThickness;
|
|
|
1053
|
|
|
1054 x += shadowT;
|
|
|
1055 y += shadowT;
|
|
|
1056 width -= 2*shadowT;
|
|
|
1057 height -= 2*shadowT;
|
|
|
1058
|
|
|
1059 size = (width < height ? width : height) * 3 / 4;
|
|
|
1060
|
|
|
1061 if (size%2 != (width < height ? width : height)%2) size--;
|
|
|
1062
|
|
|
1063 DBUG (fprintf (stderr, "%d %d\n",
|
|
|
1064 x + (width / 2) - (size / 2) - 2*shadowT,
|
|
|
1065 width - size - shadowT));
|
|
|
1066
|
|
|
1067 draw_dimple (dpy, win, shine, shadow,
|
|
|
1068 x + (width / 2) - (size / 2),
|
|
|
1069 y + (height / 2) - (size / 2),
|
|
|
1070 size, size);
|
|
|
1071 }
|
|
|
1072 }
|
|
|
1073
|
|
|
1074 static void
|
|
|
1075 draw_slider (XlwScrollBarWidget w, int above, int ss, int below)
|
|
|
1076 {
|
|
|
1077 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1078 Window win = XtWindow ((Widget) w);
|
|
|
1079
|
|
|
1080 int x = widget_x (w);
|
|
|
1081 int y = widget_y (w);
|
|
|
1082 int width = widget_w (w);
|
|
|
1083 int height = widget_h (w);
|
|
|
1084 int shadowT = w->sb.shadowThickness;
|
|
|
1085 int vert_p = VERT (w);
|
|
|
1086
|
|
|
1087 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
1088 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
1089 if (shadowT < 0) shadowT = 0;
|
|
|
1090
|
|
|
1091 if (w->sb.showArrows && !arrow_same_end (w))
|
|
|
1092 y += arrow_h (w);
|
|
|
1093
|
|
|
1094 /* trough above slider */
|
|
|
1095 if (above > 0)
|
|
|
1096 {
|
|
|
1097 if (vert_p)
|
|
|
1098 XClearArea (dpy, win, x, y, width, above, False);
|
|
|
1099 else
|
|
|
1100 XClearArea (dpy, win, y, x, above, width, False);
|
|
|
1101 }
|
|
|
1102
|
|
|
1103 /* slider */
|
|
|
1104 if (vert_p)
|
|
|
1105 {
|
|
|
1106 draw_shadows (dpy, win, w->sb.topShadowGC, w->sb.bottomShadowGC,
|
|
|
1107 x, y + above, width, ss, shadowT);
|
|
|
1108 XFillRectangle (dpy, win, w->sb.backgroundGC,
|
|
|
1109 x+shadowT, y + above + shadowT,
|
|
|
1110 width-2*shadowT, ss-2*shadowT);
|
|
|
1111 redraw_dimple (w, dpy, win, x, y + above, width, ss);
|
|
|
1112 }
|
|
|
1113 else
|
|
|
1114 {
|
|
|
1115 draw_shadows (dpy, win, w->sb.topShadowGC, w->sb.bottomShadowGC,
|
|
|
1116 y + above, x, ss, width, shadowT);
|
|
|
1117 XFillRectangle (dpy, win, w->sb.backgroundGC,
|
|
|
1118 y + above + shadowT, x+shadowT,
|
|
|
1119 ss-2*shadowT, width-2*shadowT);
|
|
|
1120 redraw_dimple (w, dpy, win, y + above, x, ss, width);
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 /* trough below slider */
|
|
|
1124 if (below > 0)
|
|
|
1125 {
|
|
|
1126 if (vert_p)
|
|
|
1127 XClearArea (dpy, win, x, y + above + ss, width, below, False);
|
|
|
1128 else
|
|
|
1129 XClearArea (dpy, win, y + above + ss, x, below, width, False);
|
|
|
1130 }
|
|
|
1131
|
|
|
1132 CHECK (w);
|
|
|
1133 }
|
|
|
1134
|
|
|
1135 static void
|
|
|
1136 redraw_up_arrow (XlwScrollBarWidget w, Boolean armed, Boolean clear_behind)
|
|
|
1137 {
|
|
|
1138 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1139 Window win = XtWindow ((Widget) w);
|
|
|
1140
|
|
|
1141 int x = widget_x (w);
|
|
|
1142 int y = widget_y (w);
|
|
|
1143 int width = widget_w (w);
|
|
|
1144 int height = widget_h (w);
|
|
|
1145 int shadowT = w->sb.shadowThickness;
|
|
|
1146 int arrow_height = arrow_h (w);
|
|
|
1147
|
|
|
1148 GC bg = w->sb.backgroundGC;
|
|
|
1149 GC shine = armed ? w->sb.bottomShadowGC : w->sb.topShadowGC;
|
|
|
1150 GC shadow = armed ? w->sb.topShadowGC : w->sb.bottomShadowGC;
|
|
|
1151
|
|
|
1152 if (VERT (w))
|
|
|
1153 {
|
|
|
1154 if (arrow_same_end (w))
|
|
|
1155 y += height - 2 * arrow_height;
|
|
|
1156 if (clear_behind)
|
|
|
1157 XClearArea (dpy, win, x, y, width, arrow_height + 1, False);
|
|
|
1158 draw_arrow_up (dpy, win, bg, shine, shadow,
|
|
|
1159 x + (width - arrow_height)/2, y,
|
|
|
1160 arrow_height, arrow_height, shadowT);
|
|
|
1161 }
|
|
|
1162 else
|
|
|
1163 {
|
|
|
1164 if (arrow_same_end (w))
|
|
|
1165 y += height - 2 * arrow_height;
|
|
|
1166 if (clear_behind)
|
|
|
1167 XClearArea (dpy, win, y, x, arrow_height + 1, height, False);
|
|
|
1168 draw_arrow_left (dpy, win, bg, shine, shadow,
|
|
|
1169 y, x + (width - arrow_height)/2,
|
|
|
1170 arrow_height, arrow_height, shadowT);
|
|
|
1171 }
|
|
|
1172 }
|
|
|
1173
|
|
|
1174 static void
|
|
|
1175 redraw_down_arrow (XlwScrollBarWidget w, Boolean armed, Boolean clear_behind)
|
|
|
1176 {
|
|
|
1177 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1178 Window win = XtWindow ((Widget) w);
|
|
|
1179
|
|
|
1180 int x = widget_x (w);
|
|
|
1181 int y = widget_y (w);
|
|
|
1182 int width = widget_w (w);
|
|
|
1183 int height = widget_h (w);
|
|
|
1184 int shadowT = w->sb.shadowThickness;
|
|
|
1185 int arrow_height = arrow_h (w);
|
|
|
1186
|
|
|
1187 GC bg = w->sb.backgroundGC;
|
|
|
1188 GC shine = armed ? w->sb.bottomShadowGC : w->sb.topShadowGC;
|
|
|
1189 GC shadow = armed ? w->sb.topShadowGC : w->sb.bottomShadowGC;
|
|
|
1190
|
|
|
1191 if (VERT (w))
|
|
|
1192 {
|
|
|
1193 if (clear_behind)
|
|
|
1194 XClearArea (dpy, win, x, y + height - arrow_height, width,
|
|
|
1195 arrow_height + 1, False);
|
|
|
1196 draw_arrow_down (dpy, win, bg, shine, shadow,
|
|
|
1197 x + (width - arrow_height)/2,
|
|
|
1198 y + height - arrow_height + 1,
|
|
|
1199 arrow_height, arrow_height, shadowT);
|
|
|
1200 }
|
|
|
1201 else
|
|
|
1202 {
|
|
|
1203 if (clear_behind)
|
|
|
1204 XClearArea (dpy, win, y + height - arrow_height, x,
|
|
|
1205 arrow_height + 1, height, False);
|
|
|
1206 draw_arrow_right (dpy, win, bg, shine, shadow,
|
|
|
1207 y + height - arrow_height + 1,
|
|
|
1208 x + (width - arrow_height)/2,
|
|
|
1209 arrow_height, arrow_height, shadowT);
|
|
|
1210 }
|
|
|
1211 }
|
|
|
1212
|
|
|
1213 static void
|
|
|
1214 redraw_everything (XlwScrollBarWidget w, Region region, Boolean behind_arrows)
|
|
|
1215 {
|
|
|
1216 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1217 Window win = XtWindow ((Widget) w);
|
|
|
1218
|
|
|
1219 if (w->sb.showArrows)
|
|
|
1220 {
|
|
|
1221 if (region == NULL)
|
|
|
1222 {
|
|
|
1223 redraw_up_arrow (w, False, behind_arrows);
|
|
|
1224 redraw_down_arrow (w, False, behind_arrows);
|
|
|
1225 }
|
|
|
1226 else
|
|
|
1227 {
|
|
|
1228 int x = widget_x (w);
|
|
|
1229 int y = widget_y (w);
|
|
|
1230 int width = widget_w (w);
|
|
|
1231 int height = widget_h (w);
|
|
|
1232 int arrow_height = arrow_h (w);
|
|
|
1233 int ax = x, ay = y;
|
|
|
1234
|
|
|
1235 if (arrow_same_end (w))
|
|
|
1236 {
|
|
|
1237 if (VERT (w))
|
|
|
1238 ay = y + height - arrow_height - arrow_height;
|
|
|
1239 else
|
|
|
1240 ax = x + height - arrow_height - arrow_height;
|
|
|
1241 }
|
|
|
1242 if (XRectInRegion (region, ax, ay, width, width))
|
|
|
1243 redraw_up_arrow (w, False, behind_arrows);
|
|
|
1244
|
|
|
1245 if (VERT (w))
|
|
|
1246 ay = y + height - arrow_height;
|
|
|
1247 else
|
|
|
1248 ax = x + height - arrow_height;
|
|
|
1249 if (XRectInRegion (region, ax, ay, width, width))
|
|
|
1250 redraw_down_arrow (w, False, behind_arrows);
|
|
|
1251 }
|
|
|
1252 }
|
|
|
1253
|
|
|
1254 draw_shadows (dpy, win, w->sb.bottomShadowGC, w->sb.topShadowGC, 0, 0,
|
|
|
1255 w->core.width, w->core.height, w->sb.shadowThickness);
|
|
|
1256
|
|
|
1257 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1258 }
|
|
|
1259
|
|
|
1260 /*-------------------------- Method Functions ---------------------------*/
|
|
|
1261
|
|
|
1262 static void
|
|
2286
|
1263 Initialize (Widget treq, Widget tnew, ArgList UNUSED (args),
|
|
|
1264 Cardinal *UNUSED (num_args))
|
|
428
|
1265 {
|
|
|
1266 XlwScrollBarWidget request = (XlwScrollBarWidget) treq;
|
|
|
1267 XlwScrollBarWidget w = (XlwScrollBarWidget) tnew;
|
|
|
1268 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1269 Window win = RootWindowOfScreen (DefaultScreenOfDisplay (dpy));
|
|
|
1270
|
|
|
1271 if (request->core.width == 0) w->core.width += (VERT (w) ? 12 : 25);
|
|
|
1272 if (request->core.height == 0) w->core.height += (VERT (w) ? 25 : 12);
|
|
|
1273
|
|
|
1274 verify_values (w);
|
|
|
1275
|
|
|
1276 w->sb.lastY = 0;
|
|
|
1277 w->sb.above = 0;
|
|
|
1278 w->sb.ss = 0;
|
|
|
1279 w->sb.below = 0;
|
|
|
1280 w->sb.armed = ARM_NONE;
|
|
|
1281 w->sb.forced_scroll = FORCED_SCROLL_NONE;
|
|
|
1282
|
|
|
1283 if (w->sb.shadowThickness > 5) w->sb.shadowThickness = 5;
|
|
|
1284
|
|
|
1285 w->sb.grayPixmap =
|
|
|
1286 XCreatePixmapFromBitmapData (dpy, win, (char *) gray_bits, gray_width,
|
|
|
1287 gray_height, 1, 0, 1);
|
|
|
1288
|
|
|
1289 make_trough_pixel (w);
|
|
|
1290
|
|
|
1291 make_shadow_pixels (w);
|
|
|
1292
|
|
|
1293 w->sb.backgroundGC =
|
|
|
1294 get_gc (w, w->core.background_pixel, w->core.background_pixel, None);
|
|
|
1295 w->sb.topShadowGC =
|
|
|
1296 get_gc (w, w->sb.topShadowColor, w->core.background_pixel,
|
|
|
1297 w->sb.topShadowPixmap);
|
|
|
1298 w->sb.bottomShadowGC =
|
|
|
1299 get_gc (w, w->sb.bottomShadowColor, w->core.background_pixel,
|
|
|
1300 w->sb.bottomShadowPixmap);
|
|
|
1301
|
|
|
1302 w->sb.fullRedrawNext = True;
|
|
|
1303
|
|
|
1304 w->sb.timerActive = False;
|
|
|
1305 }
|
|
|
1306
|
|
|
1307 static void
|
|
|
1308 Destroy (Widget widget)
|
|
|
1309 {
|
|
|
1310 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1311 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1312
|
|
|
1313 XtReleaseGC (widget, w->sb.bottomShadowGC);
|
|
|
1314 XtReleaseGC (widget, w->sb.topShadowGC);
|
|
|
1315 XtReleaseGC (widget, w->sb.backgroundGC);
|
|
|
1316
|
|
|
1317 XFreePixmap (dpy, w->sb.grayPixmap);
|
|
|
1318
|
|
|
1319 if (w->sb.timerActive)
|
|
|
1320 {
|
|
|
1321 XtRemoveTimeOut (w->sb.timerId);
|
|
|
1322 w->sb.timerActive = False; /* Should be a no-op, but you never know */
|
|
|
1323 }
|
|
|
1324 }
|
|
|
1325
|
|
|
1326 static void
|
|
|
1327 Realize (Widget widget, XtValueMask *valuemask, XSetWindowAttributes *attr)
|
|
|
1328 {
|
|
|
1329 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1330 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1331 Window win;
|
|
|
1332 XSetWindowAttributes win_attr;
|
|
|
1333
|
|
|
1334 (*coreClassRec.core_class.realize)(widget, valuemask, attr);
|
|
|
1335
|
|
|
1336 win = XtWindow ((Widget) w);
|
|
|
1337
|
|
|
1338 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1339
|
|
|
1340 XSetWindowBackground (dpy, win, w->sb.troughColor);
|
|
|
1341
|
|
|
1342 /* Change bit gravity so widget is not cleared on resize */
|
|
|
1343 win_attr.bit_gravity = NorthWestGravity;
|
|
|
1344 XChangeWindowAttributes (dpy, win, CWBitGravity , &win_attr);
|
|
|
1345
|
|
|
1346 }
|
|
|
1347
|
|
|
1348 static void
|
|
|
1349 Resize (Widget widget)
|
|
|
1350 {
|
|
|
1351 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1352 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1353 Window win = XtWindow ((Widget) w);
|
|
|
1354
|
|
|
1355 if (XtIsRealized (widget))
|
|
|
1356 {
|
|
|
1357 DBUG (fprintf (stderr, "Resize = %08lx\n", w));
|
|
|
1358
|
|
|
1359 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1360
|
|
|
1361 /* redraw_everything (w, NULL, True); */
|
|
|
1362
|
|
|
1363 w->sb.fullRedrawNext = True;
|
|
|
1364 /* Force expose event */
|
|
|
1365 XClearArea (dpy, win, widget_x (w), widget_y (w), 1, 1, True);
|
|
|
1366 }
|
|
|
1367
|
|
|
1368 if (w->sb.timerActive)
|
|
|
1369 {
|
|
|
1370 XtRemoveTimeOut (w->sb.timerId);
|
|
|
1371 w->sb.timerActive = False;
|
|
|
1372 }
|
|
|
1373 }
|
|
|
1374
|
|
|
1375 static void
|
|
2286
|
1376 Redisplay (Widget widget, XEvent *UNUSED (event), Region region)
|
|
428
|
1377 {
|
|
|
1378 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1379
|
|
|
1380 DBUG (fprintf (stderr, "Redisplay = %08lx\n", w));
|
|
|
1381
|
|
|
1382 if (XtIsRealized (widget))
|
|
|
1383 {
|
|
|
1384 if (w->sb.fullRedrawNext)
|
|
|
1385 redraw_everything (w, NULL, True);
|
|
|
1386 else
|
|
|
1387 redraw_everything (w, region, False);
|
|
|
1388 w->sb.fullRedrawNext = False;
|
|
|
1389 }
|
|
|
1390 }
|
|
|
1391
|
|
|
1392 static Boolean
|
|
2286
|
1393 SetValues (Widget current, Widget UNUSED (request), Widget neww,
|
|
|
1394 ArgList UNUSED (args), Cardinal *UNUSED (num_args))
|
|
428
|
1395 {
|
|
|
1396 XlwScrollBarWidget cur = (XlwScrollBarWidget) current;
|
|
|
1397 XlwScrollBarWidget w = (XlwScrollBarWidget) neww;
|
|
|
1398 Boolean do_redisplay = False;
|
|
|
1399
|
|
|
1400 if (cur->sb.troughColor != w->sb.troughColor)
|
|
|
1401 {
|
|
|
1402 if (XtIsRealized ((Widget) w))
|
|
|
1403 {
|
|
|
1404 XSetWindowBackground (XtDisplay((Widget) w), XtWindow ((Widget) w),
|
|
|
1405 w->sb.troughColor);
|
|
|
1406 do_redisplay = True;
|
|
|
1407 }
|
|
|
1408 }
|
|
|
1409
|
|
|
1410 if (cur->core.background_pixel != w->core.background_pixel)
|
|
|
1411 {
|
|
|
1412 XtReleaseGC ((Widget)cur, cur->sb.backgroundGC);
|
|
|
1413 w->sb.backgroundGC =
|
|
|
1414 get_gc (w, w->core.background_pixel, w->core.background_pixel, None);
|
|
|
1415 do_redisplay = True;
|
|
|
1416 }
|
|
|
1417
|
|
|
1418 if (cur->sb.topShadowColor != w->sb.topShadowColor ||
|
|
|
1419 cur->sb.topShadowPixmap != w->sb.topShadowPixmap)
|
|
|
1420 {
|
|
|
1421 XtReleaseGC ((Widget)cur, cur->sb.topShadowGC);
|
|
|
1422 w->sb.topShadowGC =
|
|
|
1423 get_gc (w, w->sb.topShadowColor, w->core.background_pixel,
|
|
|
1424 w->sb.topShadowPixmap);
|
|
|
1425 do_redisplay = True;
|
|
|
1426 }
|
|
|
1427
|
|
|
1428 if (cur->sb.bottomShadowColor != w->sb.bottomShadowColor ||
|
|
|
1429 cur->sb.bottomShadowPixmap != w->sb.bottomShadowPixmap)
|
|
|
1430 {
|
|
|
1431 XtReleaseGC ((Widget)cur, cur->sb.bottomShadowGC);
|
|
|
1432 w->sb.bottomShadowGC =
|
|
|
1433 get_gc (w, w->sb.bottomShadowColor, w->core.background_pixel,
|
|
|
1434 w->sb.bottomShadowPixmap);
|
|
|
1435 do_redisplay = True;
|
|
|
1436 }
|
|
|
1437
|
|
|
1438 if (cur->sb.orientation != w->sb.orientation)
|
|
|
1439 do_redisplay = True;
|
|
|
1440
|
|
|
1441
|
|
|
1442 if (cur->sb.minimum != w->sb.minimum ||
|
|
|
1443 cur->sb.maximum != w->sb.maximum ||
|
|
|
1444 cur->sb.sliderSize != w->sb.sliderSize ||
|
|
|
1445 cur->sb.value != w->sb.value ||
|
|
|
1446 cur->sb.pageIncrement != w->sb.pageIncrement ||
|
|
|
1447 cur->sb.increment != w->sb.increment)
|
|
|
1448 {
|
|
|
1449 verify_values (w);
|
|
|
1450 if (XtIsRealized ((Widget) w))
|
|
|
1451 {
|
|
|
1452 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1453 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1454 }
|
|
|
1455 }
|
|
|
1456
|
|
|
1457 if (w->sb.shadowThickness > 5) w->sb.shadowThickness = 5;
|
|
|
1458
|
|
|
1459 return do_redisplay;
|
|
|
1460 }
|
|
|
1461
|
|
|
1462 void
|
|
|
1463 XlwScrollBarGetValues (Widget widget, int *value, int *sliderSize,
|
|
|
1464 int *increment, int *pageIncrement)
|
|
|
1465 {
|
|
|
1466 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1467
|
|
|
1468 if (w && XtClass ((Widget) w) == xlwScrollBarWidgetClass)
|
|
|
1469 {
|
|
|
1470 if (value) *value = w->sb.value;
|
|
|
1471 if (sliderSize) *sliderSize = w->sb.sliderSize;
|
|
|
1472 if (increment) *increment = w->sb.increment;
|
|
|
1473 if (pageIncrement) *pageIncrement = w->sb.pageIncrement;
|
|
|
1474 }
|
|
|
1475 }
|
|
|
1476
|
|
|
1477 void
|
|
|
1478 XlwScrollBarSetValues (Widget widget, int value, int sliderSize,
|
|
|
1479 int increment, int pageIncrement, Boolean notify)
|
|
|
1480 {
|
|
|
1481 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1482
|
|
|
1483 if (w && XtClass ((Widget) w) == xlwScrollBarWidgetClass &&
|
|
|
1484 (w->sb.value != value ||
|
|
|
1485 w->sb.sliderSize != sliderSize ||
|
|
|
1486 w->sb.increment != increment ||
|
|
|
1487 w->sb.pageIncrement != pageIncrement))
|
|
|
1488 {
|
|
|
1489 int last_value = w->sb.value;
|
|
|
1490
|
|
|
1491 w->sb.value = value;
|
|
|
1492 w->sb.sliderSize = sliderSize;
|
|
|
1493 w->sb.increment = increment;
|
|
|
1494 w->sb.pageIncrement = pageIncrement;
|
|
|
1495
|
|
|
1496 verify_values (w);
|
|
|
1497
|
|
|
1498 if (XtIsRealized (widget))
|
|
|
1499 {
|
|
|
1500 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1501 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1502
|
|
|
1503 if (w->sb.value != last_value && notify)
|
|
|
1504 call_callbacks (w, XmCR_VALUE_CHANGED, w->sb.value, 0, NULL);
|
|
|
1505 }
|
|
|
1506 }
|
|
|
1507 }
|
|
|
1508
|
|
|
1509 /*-------------------------- Action Functions ---------------------------*/
|
|
|
1510
|
|
|
1511 static void
|
|
2286
|
1512 timer (XtPointer data, XtIntervalId *UNUSED (id))
|
|
428
|
1513 {
|
|
|
1514 XlwScrollBarWidget w = (XlwScrollBarWidget) data;
|
|
|
1515 w->sb.timerActive = False;
|
|
|
1516
|
|
|
1517 if (w->sb.armed != ARM_NONE)
|
|
|
1518 {
|
|
|
1519 int last_value = w->sb.value;
|
|
|
1520 int reason;
|
|
|
1521
|
|
|
1522 switch (w->sb.armed)
|
|
|
1523 {
|
|
|
1524 case ARM_PAGEUP:
|
|
|
1525 decrement_value (w, w->sb.pageIncrement);
|
|
|
1526 reason = XmCR_PAGE_DECREMENT;
|
|
|
1527 break;
|
|
|
1528 case ARM_PAGEDOWN:
|
|
|
1529 increment_value (w, w->sb.pageIncrement);
|
|
|
1530 reason = XmCR_PAGE_INCREMENT;
|
|
|
1531 break;
|
|
|
1532 case ARM_UP:
|
|
|
1533 decrement_value (w, w->sb.increment);
|
|
|
1534 reason = XmCR_DECREMENT;
|
|
|
1535 break;
|
|
|
1536 case ARM_DOWN:
|
|
|
1537 increment_value (w, w->sb.increment);
|
|
|
1538 reason = XmCR_INCREMENT;
|
|
|
1539 break;
|
|
|
1540 default:
|
|
|
1541 reason = XmCR_NONE;
|
|
|
1542 }
|
|
|
1543
|
|
|
1544 verify_values (w);
|
|
|
1545
|
|
|
1546 if (last_value != w->sb.value)
|
|
|
1547 {
|
|
|
1548 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1549 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1550
|
|
|
1551 call_callbacks (w, reason, w->sb.value, 0, NULL);
|
|
|
1552
|
|
|
1553 w->sb.timerId =
|
|
|
1554 XtAppAddTimeOut (XtWidgetToApplicationContext ((Widget) w),
|
|
|
1555 (unsigned long) w->sb.repeatDelay,
|
|
|
1556 timer, (XtPointer) w);
|
|
|
1557 w->sb.timerActive = True;
|
|
|
1558 }
|
|
|
1559 }
|
|
|
1560 }
|
|
|
1561
|
|
|
1562 static button_where
|
|
|
1563 what_button (XlwScrollBarWidget w, int mouse_x, int mouse_y)
|
|
|
1564 {
|
|
|
1565 int width = widget_w (w);
|
|
|
1566 int height = widget_h (w);
|
|
|
1567 int arrow_height = arrow_h (w);
|
|
|
1568
|
|
|
1569 mouse_x -= widget_x (w);
|
|
|
1570 mouse_y -= widget_y (w);
|
|
|
1571
|
|
|
1572 if (mouse_x < 0 || mouse_x >= width ||
|
|
|
1573 mouse_y < 0 || mouse_y >= height)
|
|
|
1574 return BUTTON_NONE;
|
|
|
1575
|
|
|
1576 if (w->sb.showArrows)
|
|
|
1577 {
|
|
|
1578 if (mouse_y >= (height -= arrow_height))
|
|
|
1579 return BUTTON_DOWN_ARROW;
|
|
|
1580
|
|
|
1581 if (arrow_same_end (w))
|
|
|
1582 {
|
|
|
1583 if (mouse_y >= (height -= arrow_height))
|
|
|
1584 return BUTTON_UP_ARROW;
|
|
|
1585 }
|
|
|
1586 else
|
|
|
1587 if ( (mouse_y -= arrow_height) < 0)
|
|
|
1588 return BUTTON_UP_ARROW;
|
|
|
1589 }
|
|
|
1590
|
|
|
1591 if ( (mouse_y -= w->sb.above) < 0)
|
|
|
1592 return BUTTON_TROUGH_ABOVE;
|
|
|
1593
|
|
|
1594 if ( (mouse_y -= w->sb.ss) < 0)
|
|
|
1595 return BUTTON_SLIDER;
|
|
|
1596
|
|
|
1597 return BUTTON_TROUGH_BELOW;
|
|
|
1598 }
|
|
|
1599
|
|
|
1600 static void
|
|
2286
|
1601 Select (Widget widget, XEvent *event, String *UNUSED (parms),
|
|
|
1602 Cardinal *UNUSED (num_parms))
|
|
428
|
1603 {
|
|
|
1604 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1605 button_where sb_button;
|
|
|
1606
|
|
|
1607 int mouse_x = event_x (w, event);
|
|
|
1608 int mouse_y = event_y (w, event);
|
|
|
1609
|
|
|
1610 int last_value = w->sb.savedValue = w->sb.value;
|
|
|
1611 int reason = XmCR_NONE;
|
|
|
1612
|
|
|
1613 XtGrabKeyboard ((Widget) w, False, GrabModeAsync, GrabModeAsync,
|
|
|
1614 event->xbutton.time);
|
|
|
1615
|
|
|
1616 sb_button = what_button (w, mouse_x, mouse_y);
|
|
|
1617
|
|
|
1618 if (w->sb.forced_scroll != FORCED_SCROLL_NONE)
|
|
|
1619 {
|
|
|
1620 switch (sb_button)
|
|
|
1621 {
|
|
|
1622 case BUTTON_TROUGH_ABOVE:
|
|
|
1623 case BUTTON_TROUGH_BELOW:
|
|
|
1624 case BUTTON_SLIDER:
|
|
|
1625 sb_button= BUTTON_NONE; /* cause next switch to fall through */
|
|
|
1626 if (w->sb.forced_scroll == FORCED_SCROLL_UPLEFT)
|
|
|
1627 {
|
|
|
1628 decrement_value (w, w->sb.pageIncrement);
|
|
|
1629 w->sb.armed = ARM_PAGEUP;
|
|
|
1630 reason = XmCR_PAGE_DECREMENT;
|
|
|
1631 break;
|
|
|
1632 }
|
|
|
1633 else if (w->sb.forced_scroll == FORCED_SCROLL_DOWNRIGHT)
|
|
|
1634 {
|
|
|
1635 increment_value (w, w->sb.pageIncrement);
|
|
|
1636 w->sb.armed = ARM_PAGEDOWN;
|
|
|
1637 reason = XmCR_PAGE_INCREMENT;
|
|
|
1638 break;
|
|
|
1639 }
|
|
|
1640 abort();
|
|
|
1641 default:
|
|
|
1642 ; /* Do nothing */
|
|
|
1643 }
|
|
|
1644 }
|
|
|
1645
|
|
|
1646 switch (sb_button)
|
|
|
1647 {
|
|
|
1648 case BUTTON_TROUGH_ABOVE:
|
|
|
1649 decrement_value (w, w->sb.pageIncrement);
|
|
|
1650 w->sb.armed = ARM_PAGEUP;
|
|
|
1651 reason = XmCR_PAGE_DECREMENT;
|
|
|
1652 break;
|
|
|
1653 case BUTTON_TROUGH_BELOW:
|
|
|
1654 increment_value (w, w->sb.pageIncrement);
|
|
|
1655 w->sb.armed = ARM_PAGEDOWN;
|
|
|
1656 reason = XmCR_PAGE_INCREMENT;
|
|
|
1657 break;
|
|
|
1658 case BUTTON_SLIDER:
|
|
|
1659 w->sb.lastY = mouse_y;
|
|
|
1660 w->sb.armed = ARM_SLIDER;
|
|
|
1661 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1662 break;
|
|
|
1663 case BUTTON_UP_ARROW:
|
|
|
1664 if (event->xbutton.state & ControlMask)
|
|
|
1665 {
|
|
|
1666 w->sb.value = w->sb.minimum;
|
|
|
1667 reason = XmCR_TO_TOP;
|
|
|
1668 }
|
|
|
1669 else
|
|
|
1670 {
|
|
|
1671 decrement_value (w, w->sb.increment);
|
|
|
1672 reason = XmCR_DECREMENT;
|
|
|
1673 }
|
|
|
1674 w->sb.armed = ARM_UP;
|
|
|
1675 redraw_up_arrow (w, True, False);
|
|
|
1676 break;
|
|
|
1677 case BUTTON_DOWN_ARROW:
|
|
|
1678 if (event->xbutton.state & ControlMask)
|
|
|
1679 {
|
|
|
1680 w->sb.value = w->sb.maximum;
|
|
|
1681 reason = XmCR_TO_BOTTOM;
|
|
|
1682 }
|
|
|
1683 else
|
|
|
1684 {
|
|
|
1685 increment_value (w, w->sb.increment);
|
|
|
1686 reason = XmCR_INCREMENT;
|
|
|
1687 }
|
|
|
1688 w->sb.armed = ARM_DOWN;
|
|
|
1689 redraw_down_arrow (w, True, False);
|
|
|
1690 break;
|
|
|
1691 case BUTTON_NONE:
|
|
|
1692 ; /* Do nothing */
|
|
|
1693 }
|
|
|
1694
|
|
|
1695 verify_values (w);
|
|
|
1696
|
|
|
1697 if (last_value != w->sb.value)
|
|
|
1698 {
|
|
|
1699 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1700 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1701
|
|
|
1702 call_callbacks (w, reason, w->sb.value, mouse_y, event);
|
|
|
1703
|
|
|
1704 if (w->sb.timerActive)
|
|
|
1705 XtRemoveTimeOut (w->sb.timerId);
|
|
|
1706
|
|
|
1707 w->sb.timerId =
|
|
|
1708 XtAppAddTimeOut (XtWidgetToApplicationContext ((Widget) w),
|
|
|
1709 (unsigned long) w->sb.initialDelay,
|
|
|
1710 timer, (XtPointer) w);
|
|
|
1711 w->sb.timerActive = True;
|
|
|
1712 }
|
|
|
1713
|
|
|
1714 CHECK (w);
|
|
|
1715 }
|
|
|
1716
|
|
|
1717 static void
|
|
|
1718 PageDownOrRight (Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
1719 {
|
|
|
1720 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1721 w->sb.forced_scroll = FORCED_SCROLL_DOWNRIGHT;
|
|
|
1722 Select (widget, event, parms, num_parms);
|
|
|
1723 w->sb.forced_scroll = FORCED_SCROLL_NONE;
|
|
|
1724 }
|
|
|
1725
|
|
|
1726 static void
|
|
|
1727 PageUpOrLeft (Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
1728 {
|
|
|
1729 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1730 w->sb.forced_scroll = FORCED_SCROLL_UPLEFT;
|
|
|
1731 Select (widget, event, parms, num_parms);
|
|
|
1732 w->sb.forced_scroll = FORCED_SCROLL_NONE;
|
|
|
1733 }
|
|
|
1734
|
|
|
1735 static void
|
|
2286
|
1736 Drag (Widget widget, XEvent *event, String *UNUSED (parms),
|
|
|
1737 Cardinal *UNUSED (num_parms))
|
|
428
|
1738 {
|
|
|
1739 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1740
|
|
|
1741 if (w->sb.armed == ARM_SLIDER)
|
|
|
1742 {
|
|
|
1743 int mouse_y = event_y (w, event);
|
|
|
1744 int diff = mouse_y - w->sb.lastY;
|
|
|
1745
|
|
|
1746 if (diff < -(w->sb.above)) /* up */
|
|
|
1747 {
|
|
|
1748 mouse_y -= (diff + w->sb.above);
|
|
|
1749 diff = -(w->sb.above);
|
|
|
1750 }
|
|
|
1751 else if (diff > w->sb.below) /* down */
|
|
|
1752 {
|
|
|
1753 mouse_y -= (diff - w->sb.below);
|
|
|
1754 diff = w->sb.below;
|
|
|
1755 }
|
|
|
1756
|
|
|
1757 if (diff)
|
|
|
1758 {
|
|
|
1759 w->sb.above += diff;
|
|
|
1760 w->sb.below -= diff;
|
|
|
1761
|
|
|
1762 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1763
|
|
|
1764 w->sb.lastY = mouse_y;
|
|
|
1765
|
|
|
1766 w->sb.value = value_from_pixel (w, w->sb.above);
|
|
|
1767 verify_values (w);
|
|
|
1768 CHECK (w);
|
|
|
1769
|
|
|
1770 call_callbacks (w, XmCR_DRAG, w->sb.value, event_y (w, event), event);
|
|
|
1771 }
|
|
|
1772 }
|
|
|
1773 CHECK (w);
|
|
|
1774 }
|
|
|
1775
|
|
|
1776 static void
|
|
2286
|
1777 Release (Widget widget, XEvent *event, String *UNUSED (parms),
|
|
|
1778 Cardinal *UNUSED (num_parms))
|
|
428
|
1779 {
|
|
|
1780 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1781
|
|
|
1782 switch (w->sb.armed)
|
|
|
1783 {
|
|
|
1784 case ARM_SLIDER:
|
|
|
1785 call_callbacks (w, XmCR_VALUE_CHANGED, w->sb.value, event_y (w, event), event);
|
|
|
1786 w->sb.armed = ARM_NONE;
|
|
|
1787 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1788 break;
|
|
|
1789 case ARM_UP:
|
|
|
1790 redraw_up_arrow (w, False, False);
|
|
|
1791 break;
|
|
|
1792 case ARM_DOWN:
|
|
|
1793 redraw_down_arrow (w, False, False);
|
|
|
1794 break;
|
|
|
1795 default:
|
|
|
1796 ; /* Do nothing */
|
|
|
1797 }
|
|
|
1798
|
|
|
1799 XtUngrabKeyboard ((Widget) w, event->xbutton.time);
|
|
|
1800
|
|
|
1801 w->sb.armed = ARM_NONE;
|
|
|
1802 }
|
|
|
1803
|
|
|
1804 static void
|
|
2286
|
1805 Jump (Widget widget, XEvent *event, String *UNUSED (parms),
|
|
|
1806 Cardinal *UNUSED (num_parms))
|
|
428
|
1807 {
|
|
|
1808 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1809 int last_value;
|
|
|
1810
|
|
|
1811 int mouse_x = event_x (w, event);
|
|
|
1812 int mouse_y = event_y (w, event);
|
|
|
1813
|
|
|
1814 int scroll_region_y = widget_y (w);
|
|
|
1815 int scroll_region_h = widget_h (w);
|
|
|
1816
|
|
|
1817 if (w->sb.showArrows)
|
|
|
1818 {
|
|
|
1819 int arrow_height = arrow_h (w);
|
|
|
1820 scroll_region_h -= 2 * arrow_height;
|
|
|
1821 if (!arrow_same_end (w))
|
|
|
1822 scroll_region_y += arrow_height;
|
|
|
1823 }
|
|
|
1824
|
|
|
1825 XtGrabKeyboard ((Widget) w, False, GrabModeAsync, GrabModeAsync,
|
|
|
1826 event->xbutton.time);
|
|
|
1827
|
|
|
1828 switch (what_button (w, mouse_x, mouse_y))
|
|
|
1829 {
|
|
|
1830 case BUTTON_TROUGH_ABOVE:
|
|
|
1831 case BUTTON_TROUGH_BELOW:
|
|
|
1832 case BUTTON_SLIDER:
|
|
|
1833 w->sb.savedValue = w->sb.value;
|
|
|
1834
|
|
|
1835 last_value = w->sb.value;
|
|
|
1836
|
|
|
1837 w->sb.above = mouse_y - (w->sb.ss / 2) - scroll_region_y;
|
|
|
1838 if (w->sb.above < 0)
|
|
|
1839 w->sb.above = 0;
|
|
|
1840 else if (w->sb.above + w->sb.ss > scroll_region_h)
|
|
|
1841 w->sb.above = scroll_region_h - w->sb.ss;
|
|
|
1842
|
|
|
1843 w->sb.below = scroll_region_h - w->sb.ss - w->sb.above;
|
|
|
1844
|
|
|
1845 w->sb.armed = ARM_SLIDER;
|
|
|
1846 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1847
|
|
|
1848 w->sb.value = value_from_pixel (w, w->sb.above);
|
|
|
1849 verify_values (w);
|
|
|
1850 CHECK (w);
|
|
|
1851
|
|
|
1852 w->sb.lastY = mouse_y;
|
|
|
1853
|
|
|
1854 if (w->sb.value != last_value)
|
|
|
1855 call_callbacks (w, XmCR_DRAG, w->sb.value, mouse_y, event);
|
|
|
1856
|
|
|
1857 break;
|
|
|
1858 default:
|
|
|
1859 ; /* Do nothing */
|
|
|
1860 }
|
|
|
1861 CHECK (w);
|
|
|
1862 }
|
|
|
1863
|
|
|
1864 static void
|
|
2286
|
1865 Abort (Widget widget, XEvent *event, String *UNUSED (parms),
|
|
|
1866 Cardinal *UNUSED (num_parms))
|
|
428
|
1867 {
|
|
|
1868 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1869
|
|
|
1870 if (w->sb.armed != ARM_NONE)
|
|
|
1871 {
|
|
|
1872 if (w->sb.value != w->sb.savedValue)
|
|
|
1873 {
|
|
|
1874 w->sb.value = w->sb.savedValue;
|
|
|
1875
|
|
|
1876 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1877 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1878
|
|
|
1879 call_callbacks (w, XmCR_VALUE_CHANGED, w->sb.value,
|
|
|
1880 event_y (w, event), event);
|
|
|
1881 }
|
|
|
1882
|
|
|
1883 switch (w->sb.armed)
|
|
|
1884 {
|
|
|
1885 case ARM_UP: redraw_up_arrow (w, False, False); break;
|
|
|
1886 case ARM_DOWN: redraw_down_arrow (w, False, False); break;
|
|
|
1887 default: ; /* Do nothing */
|
|
|
1888 }
|
|
|
1889
|
|
|
1890 w->sb.armed = ARM_NONE;
|
|
|
1891
|
|
|
1892 XtUngrabKeyboard ((Widget) w, event->xbutton.time);
|
|
|
1893 }
|
|
|
1894 }
|
