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183
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1 /* Implements a lightweight scrollbar widget.
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0
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2 Copyright (C) 1992, 1993, 1994 Lucid, Inc.
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102
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3 Copyright (C) 1997 Sun Microsystems, Inc.
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0
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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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272
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7 The Lucid Widget Library is free software; you can redistribute it and/or
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0
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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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272
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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0
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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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76
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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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0
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21
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22 /* Created by Douglas Keller <dkeller@vnet.ibm.com> */
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102
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23 /* Lots of hacking by Martin Buchholz */
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0
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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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29 * To use them, put this resource in your .Xdefaults
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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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33 * <Btn3Down>: PageUpOrLeft()
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183
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34 *
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0
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35 */
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36
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37 /*
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38 * Resources Supported:
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39 * XmNforeground
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40 * XmNbackground
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41 * XmNtopShadowColor
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42 * XmNtopShadowPixmap
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43 * XmNbottomShadowColor
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44 * XmNbottomShadowPixmap
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45 * XmNtroughColor
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46 * XmNshadowThickness
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47 * XmNshowArrows
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48 * XmNorientation
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49 * XmNborderWidth
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50 *
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51 * XmNminimum
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52 * XmNmaximum
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53 * XmNvalue
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54 * XmNincrement
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55 * XmNpageIncrement
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56 *
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57 * XmNvalueChangedCallback
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58 * XmNincrementCallback
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59 * XmNdecrementCallback
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60 * XmNpageIncrementCallback
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61 * XmNpageDecrementCallback
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62 * XmNtoTopCallback
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63 * XmNtoBottomCallback
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64 * XmNdragCallback
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65 *
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102
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66 * XmNsliderStyle - values can be: "plain" or "dimple"
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0
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67 * XmNarrowPosition - values can be: "opposite" or "same"
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68 *
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69 */
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70
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157
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71 #include <config.h>
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0
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72 #include <stdio.h>
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73 #include <stdlib.h>
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74 #include <limits.h>
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75
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76 #include <X11/IntrinsicP.h>
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77 #include <X11/StringDefs.h>
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78 #include <X11/bitmaps/gray>
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79
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80 #include "xlwscrollbarP.h"
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81 #include "xlwscrollbar.h"
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82
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177
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83 #ifdef USE_DEBUG_MALLOC
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84 #include <dmalloc.h>
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85 #endif
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86
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0
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87 #define DBUG(x)
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88
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89 #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \
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76
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90 ? ((unsigned long) (x)) : ((unsigned long) (y)))
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0
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91
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76
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92 #define VERT(w) ((w)->sb.orientation == XmVERTICAL)
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0
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93
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94 #define SS_MIN 8
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95
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102
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96 typedef enum
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97 {
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98 BUTTON_NONE,
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99 BUTTON_SLIDER,
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100 BUTTON_UP_ARROW,
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101 BUTTON_DOWN_ARROW,
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102 BUTTON_TROUGH_ABOVE,
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103 BUTTON_TROUGH_BELOW
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104 } button_where;
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0
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105
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102
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106 typedef enum
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107 {
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108 SLIDER_PLAIN,
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109 SLIDER_DIMPLE
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110 } SliderStyle;
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0
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111
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102
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112 /*-------------------------- Resources ----------------------------------*/
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0
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113 #define offset(field) XtOffset(XlwScrollBarWidget, field)
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114
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115 static XtResource resources[] = {
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80
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116 { XmNforeground, XmCForeground, XtRPixel, sizeof(Pixel),
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2
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117 offset(sb.foreground), XtRImmediate, (XtPointer) XtDefaultForeground },
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118
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80
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119 { XmNtopShadowColor, XmCTopShadowColor, XtRPixel,
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2
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120 sizeof(Pixel), offset(sb.topShadowColor), XtRImmediate, (XtPointer) ~0 },
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80
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121 { XmNbottomShadowColor, XmCBottomShadowColor, XtRPixel,
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2
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122 sizeof(Pixel), offset(sb.bottomShadowColor), XtRImmediate,
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123 (XtPointer)~0 },
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0
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124
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80
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125 { XmNtopShadowPixmap, XmCTopShadowPixmap, XtRPixmap,
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2
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126 sizeof (Pixmap), offset(sb.topShadowPixmap), XtRImmediate,
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127 (XtPointer)None},
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80
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128 { XmNbottomShadowPixmap, XmCBottomShadowPixmap,
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2
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129 XtRPixmap, sizeof (Pixmap), offset(sb.bottomShadowPixmap),
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130 XtRImmediate, (XtPointer)None},
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0
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131
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80
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132 { XmNtroughColor, XmCTroughColor, XtRPixel, sizeof(Pixel),
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0
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133 offset(sb.troughColor), XtRImmediate, (XtPointer)~0 },
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134
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80
|
135 { XmNshadowThickness, XmCShadowThickness, XtRInt,
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2
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136 sizeof(int), offset(sb.shadowThickness), XtRImmediate, (XtPointer)2 },
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0
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137
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80
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138 { XmNborderWidth, XmCBorderWidth, XtRDimension,
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2
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139 sizeof(Dimension), offset(core.border_width), XtRImmediate,
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140 (XtPointer)0 },
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0
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141
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80
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142 { XmNshowArrows, XmCShowArrows, XtRBoolean,
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2
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143 sizeof(Boolean), offset(sb.showArrows), XtRImmediate, (XtPointer)True },
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0
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144
|
|
80
|
145 { XmNinitialDelay, XmCInitialDelay, XtRInt, sizeof(int),
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0
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146 offset(sb.initialDelay), XtRImmediate, (XtPointer) 250 },
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80
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147 { XmNrepeatDelay, XmCRepeatDelay, XtRInt, sizeof(int),
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0
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148 offset(sb.repeatDelay), XtRImmediate, (XtPointer) 50 },
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149
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|
80
|
150 { XmNorientation, XmCOrientation, XtROrientation,
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2
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151 sizeof(unsigned char), offset(sb.orientation), XtRImmediate,
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152 (XtPointer) XmVERTICAL },
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0
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153
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80
|
154 { XmNminimum, XmCMinimum, XtRInt, sizeof(int),
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0
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155 offset(sb.minimum), XtRImmediate, (XtPointer) 0},
|
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80
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156 { XmNmaximum, XmCMaximum, XtRInt, sizeof(int),
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0
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157 offset(sb.maximum), XtRImmediate, (XtPointer) 100},
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|
80
|
158 { XmNvalue, XmCValue, XtRInt, sizeof(int),
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0
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159 offset(sb.value), XtRImmediate, (XtPointer) 0},
|
|
80
|
160 { XmNsliderSize, XmCSliderSize, XtRInt, sizeof(int),
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0
|
161 offset(sb.sliderSize), XtRImmediate, (XtPointer) 10},
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80
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162 { XmNincrement, XmCIncrement, XtRInt, sizeof(int),
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0
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163 offset(sb.increment), XtRImmediate, (XtPointer) 1},
|
|
80
|
164 { XmNpageIncrement, XmCPageIncrement, XtRInt, sizeof(int),
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0
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165 offset(sb.pageIncrement), XtRImmediate, (XtPointer) 10},
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166
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80
|
167 { XmNvalueChangedCallback, XmCValueChangedCallback,
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2
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168 XtRCallback, sizeof(XtPointer), offset(sb.valueChangedCBL),
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169 XtRCallback, NULL},
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80
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170 { XmNincrementCallback, XmCIncrementCallback,
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2
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171 XtRCallback, sizeof(XtPointer), offset(sb.incrementCBL),
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172 XtRCallback, NULL},
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80
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173 { XmNdecrementCallback, XmCDecrementCallback,
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2
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174 XtRCallback, sizeof(XtPointer), offset(sb.decrementCBL),
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175 XtRCallback, NULL},
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80
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176 { XmNpageIncrementCallback, XmCPageIncrementCallback,
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2
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177 XtRCallback, sizeof(XtPointer), offset(sb.pageIncrementCBL),
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178 XtRCallback, NULL},
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80
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179 { XmNpageDecrementCallback, XmCPageDecrementCallback,
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2
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180 XtRCallback, sizeof(XtPointer), offset(sb.pageDecrementCBL),
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181 XtRCallback, NULL},
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80
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182 { XmNtoTopCallback, XmCToTopCallback, XtRCallback,
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2
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183 sizeof(XtPointer), offset(sb.toTopCBL), XtRCallback, NULL},
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80
|
184 { XmNtoBottomCallback, XmCToBottomCallback, XtRCallback,
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2
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185 sizeof(XtPointer), offset(sb.toBottomCBL), XtRCallback, NULL},
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80
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186 { XmNdragCallback, XmCDragCallback, XtRCallback,
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2
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187 sizeof(XtPointer), offset(sb.dragCBL), XtRCallback, NULL},
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|
0
|
188
|
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102
|
189 /* "knob" is obsolete; use "slider" instead. */
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190 { XmNsliderStyle, XmCSliderStyle, XtRString, sizeof(char *),
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191 offset(sb.sliderStyle), XtRImmediate, NULL},
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80
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192 { XmNknobStyle, XmCKnobStyle, XtRString, sizeof(char *),
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183
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193 offset(sb.knobStyle), XtRImmediate, NULL},
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0
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194
|
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183
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195 { XmNarrowPosition, XmCArrowPosition, XtRString, sizeof(char *),
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196 offset(sb.arrowPosition), XtRImmediate, NULL},
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0
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197 };
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198
|
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102
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199 /*-------------------------- Prototypes ---------------------------------*/
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0
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200
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102
|
201 /* Actions */
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202 typedef void Action(Widget w, XEvent *event, String *parms, Cardinal *num_parms);
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203 static Action Select, PageUpOrLeft, PageDownOrRight, Drag, Release, Jump, Abort;
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0
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204
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102
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205 /* Methods */
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0
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206 static void Initialize(Widget treq, Widget tnew, ArgList args, Cardinal *num_args);
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207 static Boolean SetValues(Widget current, Widget request, Widget nw, ArgList args, Cardinal *num_args);
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208 static void Destroy(Widget widget);
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209 static void Redisplay(Widget widget, XEvent *event, Region region);
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210 static void Resize(Widget widget);
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211 static void Realize(Widget widget, XtValueMask *valuemask, XSetWindowAttributes *attr);
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212
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102
|
213 /* Private */
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|
0
|
214
|
|
102
|
215 /*-------------------------- Actions Table ------------------------------*/
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|
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216 static XtActionsRec actions[] =
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|
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217 {
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|
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218 {"Select", Select},
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219 {"PageDownOrRight", PageDownOrRight},
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220 {"PageUpOrLeft", PageUpOrLeft},
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221 {"Drag", Drag},
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222 {"Release", Release},
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223 {"Jump", Jump},
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224 {"Abort", Abort},
|
|
0
|
225 };
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226
|
|
102
|
227 /*--------------------- Default Translation Table -----------------------*/
|
|
0
|
228 static char default_translations[] =
|
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102
|
229 "<Btn1Down>: Select()\n"
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230 "<Btn1Motion>: Drag()\n"
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231 "<Btn1Up>: Release()\n"
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232 "<Btn2Down>: Jump()\n"
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233 "<Btn2Motion>: Drag()\n"
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234 "<Btn2Up>: Release()\n"
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235 "<Key>Delete: Abort()"
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|
0
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236 ;
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237
|
|
102
|
238 /*------------------- Class record initialization -----------------------*/
|
|
0
|
239 XlwScrollBarClassRec xlwScrollBarClassRec = {
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|
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240 /* core_class fields */
|
|
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241 {
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|
|
242 /* superclass */ (WidgetClass) &coreClassRec,
|
|
80
|
243 /* class_name */ "XlwScrollBar",
|
|
0
|
244 /* widget_size */ sizeof(XlwScrollBarRec),
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|
|
245 /* class_initialize */ NULL,
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|
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246 /* class_part_init */ NULL,
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247 /* class_inited */ False,
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248 /* initialize */ Initialize,
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249 /* initialize_hook */ NULL,
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250 /* realize */ Realize,
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251 /* actions */ actions,
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252 /* num_actions */ XtNumber(actions),
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|
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253 /* resources */ resources,
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|
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254 /* num_resources */ XtNumber(resources),
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|
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255 /* xrm_class */ NULLQUARK,
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|
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256 /* compress_motion */ True,
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|
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257 /* compress_exposure */ XtExposeCompressMultiple,
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258 /* compress_enterleave */ True,
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259 /* visible_interest */ False,
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260 /* destroy */ Destroy,
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|
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261 /* resize */ Resize,
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262 /* expose */ Redisplay,
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263 /* set_values */ SetValues,
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264 /* set_values_hook */ NULL,
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|
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265 /* set_values_almost */ XtInheritSetValuesAlmost,
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266 /* get_values_hook */ NULL,
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|
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267 /* accept_focus */ NULL,
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|
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268 /* version */ XtVersionDontCheck,
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|
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269 /* callback_private */ NULL,
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|
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270 /* tm_table */ default_translations,
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|
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271 /* query_geometry */ NULL,
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272 },
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|
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273 /* scrollbar_class fields */
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|
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274 {
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|
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275 /* dummy_field */ 0,
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|
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276 },
|
|
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277 };
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|
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278
|
|
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279 WidgetClass xlwScrollBarWidgetClass = (WidgetClass) &xlwScrollBarClassRec;
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|
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280
|
|
102
|
281 /*-------------------------- Debug Functions ----------------------------*/
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|
0
|
282
|
|
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283 #ifdef SHOW_CLEAR
|
|
76
|
284 static void
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|
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285 myXClearArea(Display *dpy, Drawable d, int x, int y, int w, int h,
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|
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286 Boolean exp, XlwScrollBarWidget widget)
|
|
0
|
287 {
|
|
76
|
288 XFillRectangle (dpy, d, widget->sb.topShadowGC, x, y, w, h);
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|
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289 XSync (dpy, False);
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|
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290 sleep (2);
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291 XClearArea (dpy, d, x, y, w, h, exp);
|
|
0
|
292 }
|
|
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293
|
|
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294 #define XClearArea(dpy,win,x,y,width,height,exp) myXClearArea(dpy,win,x,y,width,height,exp,w)
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|
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295 #endif
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296
|
|
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297 #ifdef CHECK_VALUES
|
|
76
|
298 static void
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|
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299 check(XlwScrollBarWidget w)
|
|
0
|
300 {
|
|
102
|
301 int height = widget_h (w);
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|
|
302 if (w->sb.showArrows)
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|
|
303 height -= (2 * arrow_h (w));
|
|
0
|
304
|
|
76
|
305 if ((w->sb.above + w->sb.ss + w->sb.below > height) ||
|
|
0
|
306 (w->sb.value < w->sb.minimum) ||
|
|
102
|
307 (w->sb.value > w->sb.maximum - w->sb.sliderSize))
|
|
76
|
308 {
|
|
183
|
309 printf("above=%d ss=%d below=%d height=%d\n",
|
|
0
|
310 w->sb.above, w->sb.ss, w->sb.below, height);
|
|
|
311 printf("value=%d min=%d max=%d ss=%d max-ss=%d\n",
|
|
76
|
312 w->sb.value, w->sb.minimum, w->sb.maximum,
|
|
|
313 w->sb.sliderSize, w->sb.maximum - w->sb.sliderSize);
|
|
0
|
314 abort();
|
|
76
|
315 }
|
|
0
|
316 }
|
|
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317
|
|
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318 # define CHECK(w) check(w)
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|
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319 #else
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|
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320 # define CHECK(w)
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|
|
321 #endif
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|
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322
|
|
102
|
323 /*-------------------------- Static functions ---------------------------*/
|
|
0
|
324
|
|
76
|
325 static void
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|
|
326 call_callbacks (XlwScrollBarWidget w, int reason,
|
|
|
327 int value, int pixel, XEvent *event)
|
|
0
|
328 {
|
|
|
329 XlwScrollBarCallbackStruct cbs;
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|
|
330 Boolean called_anything;
|
|
|
331
|
|
76
|
332 cbs.reason = reason;
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|
|
333 cbs.event = event;
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|
|
334 cbs.value = value;
|
|
|
335 cbs.pixel = pixel;
|
|
0
|
336
|
|
|
337 called_anything = False;
|
|
|
338
|
|
76
|
339 switch (reason)
|
|
|
340 {
|
|
|
341 case XmCR_VALUE_CHANGED:
|
|
|
342 XtCallCallbackList ((Widget) w, w->sb.valueChangedCBL, &cbs);
|
|
|
343 called_anything = True;
|
|
|
344 break;
|
|
|
345 case XmCR_INCREMENT:
|
|
|
346 if (w->sb.incrementCBL)
|
|
|
347 {
|
|
|
348 XtCallCallbackList ((Widget) w, w->sb.incrementCBL, &cbs);
|
|
|
349 called_anything = True;
|
|
|
350 }
|
|
|
351 break;
|
|
|
352 case XmCR_DECREMENT:
|
|
|
353 if (w->sb.decrementCBL)
|
|
|
354 {
|
|
|
355 XtCallCallbackList ((Widget) w, w->sb.decrementCBL, &cbs);
|
|
|
356 called_anything = True;
|
|
|
357 }
|
|
|
358 break;
|
|
|
359 case XmCR_PAGE_INCREMENT:
|
|
|
360 if (w->sb.incrementCBL)
|
|
|
361 {
|
|
|
362 XtCallCallbackList ((Widget) w, w->sb.pageIncrementCBL, &cbs);
|
|
0
|
363 called_anything = True;
|
|
76
|
364 }
|
|
|
365 break;
|
|
|
366 case XmCR_PAGE_DECREMENT:
|
|
|
367 if (w->sb.decrementCBL)
|
|
|
368 {
|
|
|
369 XtCallCallbackList ((Widget) w, w->sb.pageDecrementCBL, &cbs);
|
|
|
370 called_anything = True;
|
|
|
371 }
|
|
|
372 break;
|
|
|
373 case XmCR_TO_TOP:
|
|
|
374 if (w->sb.toTopCBL)
|
|
|
375 {
|
|
|
376 XtCallCallbackList ((Widget) w, w->sb.toTopCBL, &cbs);
|
|
|
377 called_anything = True;
|
|
|
378 }
|
|
|
379 break;
|
|
|
380 case XmCR_TO_BOTTOM:
|
|
|
381 if (w->sb.toBottomCBL)
|
|
|
382 {
|
|
|
383 XtCallCallbackList ((Widget) w, w->sb.toBottomCBL, &cbs);
|
|
|
384 called_anything = True;
|
|
|
385 }
|
|
|
386 break;
|
|
|
387 case XmCR_DRAG:
|
|
|
388 if (w->sb.dragCBL)
|
|
|
389 {
|
|
|
390 XtCallCallbackList ((Widget) w, w->sb.dragCBL, &cbs);
|
|
|
391 }
|
|
|
392 called_anything = True; /* Special Case */
|
|
|
393 break;
|
|
|
394 }
|
|
0
|
395
|
|
76
|
396 if (!called_anything)
|
|
|
397 {
|
|
0
|
398 cbs.reason = XmCR_VALUE_CHANGED;
|
|
76
|
399 XtCallCallbackList ((Widget) w, w->sb.valueChangedCBL, &cbs);
|
|
|
400 }
|
|
0
|
401 }
|
|
|
402
|
|
102
|
403 /* Widget sizes minus the shadow and highlight area */
|
|
|
404
|
|
76
|
405 static int
|
|
|
406 widget_x (XlwScrollBarWidget w)
|
|
70
|
407 {
|
|
76
|
408 return w->sb.shadowThickness;
|
|
70
|
409 }
|
|
26
|
410
|
|
76
|
411 static int
|
|
|
412 widget_y (XlwScrollBarWidget w)
|
|
0
|
413 {
|
|
76
|
414 return w->sb.shadowThickness;
|
|
0
|
415 }
|
|
|
416
|
|
76
|
417 static int
|
|
|
418 widget_w (XlwScrollBarWidget w)
|
|
0
|
419 {
|
|
102
|
420 int x = w->sb.shadowThickness;
|
|
|
421 int width = (VERT (w) ? w->core.width : w->core.height) - (2 * x);
|
|
|
422 return width > 1 ? width : 1;
|
|
0
|
423 }
|
|
|
424
|
|
76
|
425 static int
|
|
|
426 widget_h (XlwScrollBarWidget w)
|
|
0
|
427 {
|
|
102
|
428 int y = w->sb.shadowThickness;
|
|
|
429 int height = (VERT (w) ? w->core.height : w->core.width) - (2 * y);
|
|
0
|
430
|
|
102
|
431 return height > 1 ? height : 1;
|
|
0
|
432 }
|
|
|
433
|
|
76
|
434 static int
|
|
|
435 arrow_h (XlwScrollBarWidget w)
|
|
0
|
436 {
|
|
102
|
437 int width = widget_w (w);
|
|
|
438 int minimum_size = ((widget_h (w) - SS_MIN) / 2) - 1;
|
|
|
439 return minimum_size < width ? minimum_size : width;
|
|
0
|
440 }
|
|
|
441
|
|
76
|
442 static int
|
|
|
443 event_x (XlwScrollBarWidget w, XEvent *event)
|
|
0
|
444 {
|
|
76
|
445 return VERT (w) ? event->xbutton.x : event->xbutton.y;
|
|
0
|
446 }
|
|
|
447
|
|
76
|
448 static int
|
|
|
449 event_y (XlwScrollBarWidget w, XEvent *event)
|
|
0
|
450 {
|
|
76
|
451 return VERT (w) ? event->xbutton.y : event->xbutton.x;
|
|
0
|
452 }
|
|
|
453
|
|
102
|
454 /* Safe addition and subtraction */
|
|
|
455 static void
|
|
|
456 increment_value (XlwScrollBarWidget w, int diff)
|
|
0
|
457 {
|
|
102
|
458 w->sb.value = w->sb.maximum - diff < w->sb.value ?
|
|
|
459 w->sb.maximum :
|
|
|
460 w->sb.value + diff;
|
|
0
|
461 }
|
|
|
462
|
|
102
|
463 static void
|
|
|
464 decrement_value (XlwScrollBarWidget w, int diff)
|
|
0
|
465 {
|
|
102
|
466 w->sb.value = w->sb.minimum + diff > w->sb.value ?
|
|
|
467 w->sb.minimum :
|
|
|
468 w->sb.value - diff;
|
|
0
|
469 }
|
|
|
470
|
|
102
|
471 static SliderStyle
|
|
|
472 slider_style (XlwScrollBarWidget w)
|
|
0
|
473 {
|
|
183
|
474 return (w->sb.sliderStyle ? w->sb.sliderStyle[0] == 'd' :
|
|
|
475 w->sb.knobStyle ? w->sb.knobStyle[0] == 'd' :
|
|
|
476 0) ?
|
|
102
|
477 SLIDER_DIMPLE :
|
|
|
478 SLIDER_PLAIN;
|
|
76
|
479 }
|
|
|
480
|
|
|
481 static Boolean
|
|
|
482 arrow_same_end (XlwScrollBarWidget w)
|
|
|
483 {
|
|
|
484 return w->sb.arrowPosition && w->sb.arrowPosition[0] == 's' ? True : False;
|
|
10
|
485 }
|
|
|
486
|
|
102
|
487 /*-------------------------- GC and Pixel allocation --------------------*/
|
|
76
|
488 static GC
|
|
|
489 get_gc (XlwScrollBarWidget w, Pixel fg, Pixel bg, Pixmap pm)
|
|
0
|
490 {
|
|
|
491 XGCValues values;
|
|
|
492 XtGCMask mask;
|
|
|
493
|
|
76
|
494 if (pm == w->sb.grayPixmap)
|
|
|
495 {
|
|
0
|
496 /* If we're using the gray pixmap, guarantee white on black ...
|
|
|
497 * otherwise, we could end up with something odd like grey on white
|
|
|
498 * when we're on a color display that ran out of color cells
|
|
|
499 */
|
|
|
500
|
|
76
|
501 fg = WhitePixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w)));
|
|
|
502 bg = BlackPixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w)));
|
|
|
503 }
|
|
183
|
504
|
|
0
|
505 values.foreground = fg;
|
|
|
506 values.background = bg;
|
|
|
507 values.fill_style = FillOpaqueStippled;
|
|
|
508 values.stipple = pm;
|
|
102
|
509 mask = GCForeground | GCBackground |
|
|
|
510 (pm == None ? 0 : GCStipple | GCFillStyle);
|
|
76
|
511 return XtGetGC((Widget) w, mask, &values);
|
|
0
|
512 }
|
|
|
513
|
|
|
514 /* Replacement for XAllocColor() that tries to return the nearest
|
|
|
515 available color if the colormap is full. From FSF Emacs. */
|
|
|
516
|
|
|
517 static int
|
|
|
518 allocate_nearest_color (Display *display, Colormap screen_colormap,
|
|
|
519 XColor *color_def)
|
|
|
520 {
|
|
76
|
521 int status = XAllocColor (display, screen_colormap, color_def);
|
|
|
522 if (status)
|
|
|
523 return status;
|
|
0
|
524
|
|
|
525 {
|
|
|
526 /* If we got to this point, the colormap is full, so we're
|
|
76
|
527 going to try to get the next closest color.
|
|
0
|
528 The algorithm used is a least-squares matching, which is
|
|
|
529 what X uses for closest color matching with StaticColor visuals. */
|
|
|
530
|
|
76
|
531 int nearest, x;
|
|
80
|
532 unsigned long nearest_delta = ULONG_MAX;
|
|
0
|
533
|
|
76
|
534 int no_cells = XDisplayCells (display, XDefaultScreen (display));
|
|
0
|
535 /* Don't use alloca here because lwlib doesn't have the
|
|
|
536 necessary configuration information that src does. */
|
|
76
|
537 XColor *cells = (XColor *) malloc (sizeof (XColor) * no_cells);
|
|
0
|
538
|
|
|
539 for (x = 0; x < no_cells; x++)
|
|
|
540 cells[x].pixel = x;
|
|
|
541
|
|
|
542 XQueryColors (display, screen_colormap, cells, no_cells);
|
|
76
|
543
|
|
80
|
544 for (nearest = 0, x = 0; x < no_cells; x++)
|
|
0
|
545 {
|
|
76
|
546 long dred = (color_def->red >> 8) - (cells[x].red >> 8);
|
|
|
547 long dgreen = (color_def->green >> 8) - (cells[x].green >> 8);
|
|
|
548 long dblue = (color_def->blue >> 8) - (cells[x].blue >> 8);
|
|
80
|
549 unsigned long delta = dred * dred + dgreen * dgreen + dblue * dblue;
|
|
76
|
550
|
|
80
|
551 if (delta < nearest_delta)
|
|
0
|
552 {
|
|
|
553 nearest = x;
|
|
80
|
554 nearest_delta = delta;
|
|
0
|
555 }
|
|
|
556 }
|
|
76
|
557 color_def->red = cells[nearest].red;
|
|
0
|
558 color_def->green = cells[nearest].green;
|
|
76
|
559 color_def->blue = cells[nearest].blue;
|
|
0
|
560 free (cells);
|
|
76
|
561 return XAllocColor (display, screen_colormap, color_def);
|
|
0
|
562 }
|
|
|
563 }
|
|
|
564
|
|
76
|
565 static void
|
|
|
566 make_shadow_pixels (XlwScrollBarWidget w)
|
|
0
|
567 {
|
|
|
568 Display *dpy = XtDisplay((Widget) w);
|
|
|
569 Colormap cmap = w->core.colormap;
|
|
|
570 XColor topc, botc;
|
|
|
571 int top_frobbed, bottom_frobbed;
|
|
|
572 Pixel bg, fg;
|
|
|
573
|
|
|
574 top_frobbed = bottom_frobbed = 0;
|
|
|
575
|
|
|
576 bg = w->core.background_pixel;
|
|
|
577 fg = w->sb.foreground;
|
|
|
578
|
|
76
|
579 if (w->sb.topShadowColor == (Pixel)~0) w->sb.topShadowColor = bg;
|
|
|
580 if (w->sb.bottomShadowColor == (Pixel)~0) w->sb.bottomShadowColor = fg;
|
|
0
|
581
|
|
76
|
582 if (w->sb.topShadowColor == bg || w->sb.topShadowColor == fg)
|
|
|
583 {
|
|
0
|
584 topc.pixel = bg;
|
|
76
|
585 XQueryColor (dpy, cmap, &topc);
|
|
0
|
586 /* don't overflow/wrap! */
|
|
|
587 topc.red = MINL(65535, topc.red * 1.2);
|
|
|
588 topc.green = MINL(65535, topc.green * 1.2);
|
|
|
589 topc.blue = MINL(65535, topc.blue * 1.2);
|
|
76
|
590 if (allocate_nearest_color (dpy, cmap, &topc))
|
|
|
591 {
|
|
|
592 if (topc.pixel == bg)
|
|
|
593 {
|
|
|
594 XFreeColors (dpy, cmap, &topc.pixel, 1, 0);
|
|
0
|
595 topc.red = MINL(65535, topc.red + 0x8000);
|
|
|
596 topc.green = MINL(65535, topc.green + 0x8000);
|
|
|
597 topc.blue = MINL(65535, topc.blue + 0x8000);
|
|
76
|
598 if (allocate_nearest_color (dpy, cmap, &topc))
|
|
|
599 {
|
|
0
|
600 w->sb.topShadowColor = topc.pixel;
|
|
76
|
601 }
|
|
|
602 }
|
|
0
|
603 else
|
|
76
|
604 {
|
|
0
|
605 w->sb.topShadowColor = topc.pixel;
|
|
76
|
606 }
|
|
0
|
607
|
|
|
608 top_frobbed = 1;
|
|
76
|
609 }
|
|
|
610 }
|
|
0
|
611
|
|
76
|
612 if (w->sb.bottomShadowColor == fg || w->sb.bottomShadowColor == bg)
|
|
|
613 {
|
|
0
|
614 botc.pixel = bg;
|
|
76
|
615 XQueryColor (dpy, cmap, &botc);
|
|
272
|
616 botc.red = (botc.red * 3) / 5;
|
|
|
617 botc.green = (botc.green * 3) / 5;
|
|
|
618 botc.blue = (botc.blue * 3) / 5;
|
|
76
|
619 if (allocate_nearest_color (dpy, cmap, &botc))
|
|
|
620 {
|
|
|
621 if (botc.pixel == bg)
|
|
|
622 {
|
|
|
623 XFreeColors (dpy, cmap, &botc.pixel, 1, 0);
|
|
0
|
624 botc.red = MINL(65535, botc.red + 0x4000);
|
|
|
625 botc.green = MINL(65535, botc.green + 0x4000);
|
|
|
626 botc.blue = MINL(65535, botc.blue + 0x4000);
|
|
76
|
627 if (allocate_nearest_color (dpy, cmap, &botc))
|
|
|
628 {
|
|
0
|
629 w->sb.bottomShadowColor = botc.pixel;
|
|
76
|
630 }
|
|
|
631 }
|
|
0
|
632 else
|
|
76
|
633 {
|
|
0
|
634 w->sb.bottomShadowColor = botc.pixel;
|
|
76
|
635 }
|
|
0
|
636 bottom_frobbed = 1;
|
|
76
|
637 }
|
|
|
638 }
|
|
0
|
639
|
|
76
|
640 if (top_frobbed && bottom_frobbed)
|
|
|
641 {
|
|
0
|
642 int top_avg = ((topc.red / 3) + (topc.green / 3) + (topc.blue / 3));
|
|
|
643 int bot_avg = ((botc.red / 3) + (botc.green / 3) + (botc.blue / 3));
|
|
76
|
644 if (bot_avg > top_avg)
|
|
|
645 {
|
|
0
|
646 Pixel tmp = w->sb.topShadowColor;
|
|
|
647 w->sb.topShadowColor = w->sb.bottomShadowColor;
|
|
|
648 w->sb.bottomShadowColor = tmp;
|
|
76
|
649 }
|
|
|
650 else if (topc.pixel == botc.pixel)
|
|
|
651 {
|
|
|
652 if (botc.pixel == bg)
|
|
|
653 w->sb.topShadowColor = bg;
|
|
0
|
654 else
|
|
76
|
655 w->sb.bottomShadowColor = fg;
|
|
|
656 }
|
|
|
657 }
|
|
0
|
658
|
|
183
|
659 if (w->sb.topShadowColor == w->core.background_pixel ||
|
|
76
|
660 w->sb.bottomShadowColor == w->core.background_pixel)
|
|
|
661 {
|
|
0
|
662 /* Assume we're in mono. This code should be okay even if we're
|
|
183
|
663 * really in color but just short on color cells -- We want the
|
|
0
|
664 * following behavior, which has been empirically determined to
|
|
|
665 * work well for all fg/bg combinations in mono: If the trough
|
|
102
|
666 * and slider are BOTH black, then use a white top shadow and a
|
|
0
|
667 * grey bottom shadow, otherwise use a grey top shadow and a
|
|
|
668 * black bottom shadow.
|
|
|
669 */
|
|
|
670
|
|
76
|
671 Pixel white = WhitePixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w)));
|
|
|
672 Pixel black = BlackPixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w)));
|
|
0
|
673
|
|
102
|
674 /* Note: core.background_pixel is the color of the slider ... */
|
|
0
|
675
|
|
|
676 if (w->core.background_pixel == black &&
|
|
76
|
677 w->sb.troughColor == black)
|
|
|
678 {
|
|
|
679 w->sb.topShadowColor = white;
|
|
|
680 w->sb.bottomShadowPixmap = w->sb.grayPixmap;
|
|
|
681 } else {
|
|
|
682 w->sb.topShadowPixmap = w->sb.grayPixmap;
|
|
|
683 w->sb.bottomShadowColor = black;
|
|
|
684 }
|
|
|
685 }
|
|
0
|
686 }
|
|
|
687
|
|
76
|
688 static void
|
|
|
689 make_trough_pixel (XlwScrollBarWidget w)
|
|
0
|
690 {
|
|
|
691 Display *dpy = XtDisplay((Widget) w);
|
|
219
|
692 Colormap cmap = w->core.colormap;
|
|
0
|
693 XColor troughC;
|
|
|
694
|
|
76
|
695 if (w->sb.troughColor == (Pixel)~0) w->sb.troughColor = w->core.background_pixel;
|
|
0
|
696
|
|
76
|
697 if (w->sb.troughColor == w->core.background_pixel)
|
|
|
698 {
|
|
0
|
699 troughC.pixel = w->core.background_pixel;
|
|
76
|
700 XQueryColor (dpy, cmap, &troughC);
|
|
272
|
701 troughC.red = (troughC.red * 4) / 5;
|
|
|
702 troughC.green = (troughC.green * 4) / 5;
|
|
|
703 troughC.blue = (troughC.blue * 4) / 5;
|
|
76
|
704 if (allocate_nearest_color (dpy, cmap, &troughC))
|
|
|
705 w->sb.troughColor = troughC.pixel;
|
|
|
706 }
|
|
0
|
707 }
|
|
|
708
|
|
102
|
709 /*-------------------------- Draw 3D Border -----------------------------*/
|
|
76
|
710 static void
|
|
|
711 draw_shadows (Display *dpy, Drawable d, GC shine_gc, GC shadow_gc,
|
|
|
712 int x, int y, int width, int height, int shadowT)
|
|
0
|
713 {
|
|
76
|
714 XSegment shine[10], shadow[10];
|
|
|
715 int i;
|
|
0
|
716
|
|
76
|
717 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
718 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
719 if (shadowT <= 0) return;
|
|
0
|
720
|
|
76
|
721 for (i = 0; i < shadowT; i++)
|
|
|
722 {
|
|
|
723 /* Top segments */
|
|
|
724 shine[i].x1 = x;
|
|
|
725 shine[i].y2 = shine[i].y1 = y + i;
|
|
|
726 shine[i].x2 = x + width - i - 1;
|
|
|
727 /* Left segments */
|
|
|
728 shine[i + shadowT].x2 = shine[i + shadowT].x1 = x + i;
|
|
|
729 shine[i + shadowT].y1 = y + shadowT;
|
|
|
730 shine[i + shadowT].y2 = y + height - i - 1;
|
|
0
|
731
|
|
76
|
732 /* Bottom segments */
|
|
|
733 shadow[i].x1 = x + i;
|
|
|
734 shadow[i].y2 = shadow[i].y1 = y + height - i - 1;
|
|
|
735 shadow[i].x2 = x + width - 1 ;
|
|
|
736 /* Right segments */
|
|
|
737 shadow[i + shadowT].x2 = shadow[i + shadowT].x1 = x + width - i - 1;
|
|
|
738 shadow[i + shadowT].y1 = y + i + 1;
|
|
|
739 shadow[i + shadowT].y2 = y + height - 1 ;
|
|
|
740 }
|
|
0
|
741
|
|
76
|
742 XDrawSegments (dpy, d, shine_gc, shine, shadowT * 2);
|
|
|
743 XDrawSegments (dpy, d, shadow_gc, shadow, shadowT * 2);
|
|
0
|
744 }
|
|
|
745
|
|
102
|
746 /*------------------ Draw 3D Arrows: left, up, down, right --------------*/
|
|
76
|
747 static int
|
|
|
748 make_vert_seg (XSegment *seg, int x1, int y1, int x2, int y2, int shadowT)
|
|
0
|
749 {
|
|
|
750 int i;
|
|
|
751
|
|
102
|
752 for (i=0; i<shadowT; i++, seg++)
|
|
76
|
753 {
|
|
102
|
754 seg->x1 = x1;
|
|
|
755 seg->y1 = y1++;
|
|
|
756 seg->x2 = x2;
|
|
|
757 seg->y2 = y2++;
|
|
76
|
758 }
|
|
|
759 return shadowT;
|
|
0
|
760 }
|
|
|
761
|
|
76
|
762 static int
|
|
|
763 make_hor_seg (XSegment *seg, int x1, int y1, int x2, int y2, int shadowT)
|
|
0
|
764 {
|
|
|
765 int i;
|
|
|
766
|
|
102
|
767 for (i=0; i<shadowT; i++, seg++)
|
|
76
|
768 {
|
|
102
|
769 seg->x1 = x1++;
|
|
|
770 seg->y1 = y1;
|
|
|
771 seg->x2 = x2++;
|
|
|
772 seg->y2 = y2;
|
|
76
|
773 }
|
|
|
774 return shadowT;
|
|
0
|
775 }
|
|
|
776
|
|
76
|
777 static void
|
|
|
778 draw_arrow_up (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
779 int x, int y, int width, int height, int shadowT)
|
|
0
|
780 {
|
|
|
781 XSegment shine[10], shadow[10];
|
|
|
782 XPoint triangle[3];
|
|
|
783 int mid;
|
|
|
784
|
|
|
785 mid = width / 2;
|
|
|
786
|
|
76
|
787 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
788 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
102
|
789 if (shadowT < 0) shadowT = 0;
|
|
0
|
790
|
|
|
791 /* / */
|
|
76
|
792 make_vert_seg (shine,
|
|
102
|
793 x, y + height - shadowT - 1,
|
|
76
|
794 x + mid, y, shadowT);
|
|
0
|
795 /* _\ */
|
|
76
|
796 make_vert_seg (shadow,
|
|
102
|
797 x, y + height - shadowT - 1,
|
|
76
|
798 x + width - 1, y + height - shadowT - 1, shadowT);
|
|
|
799 make_vert_seg (shadow + shadowT,
|
|
102
|
800 x + mid, y,
|
|
76
|
801 x + width - 1, y + height - shadowT - 1, shadowT);
|
|
0
|
802
|
|
|
803 triangle[0].x = x;
|
|
|
804 triangle[0].y = y + height - 1;
|
|
|
805 triangle[1].x = x + mid;
|
|
|
806 triangle[1].y = y;
|
|
|
807 triangle[2].x = x + width - 1;
|
|
|
808 triangle[2].y = y + height - 1;
|
|
|
809
|
|
76
|
810 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord);
|
|
0
|
811
|
|
76
|
812 XDrawSegments (dpy, win, shadowGC, shadow, shadowT * 2);
|
|
|
813 XDrawSegments (dpy, win, shineGC, shine, shadowT);
|
|
0
|
814 }
|
|
|
815
|
|
76
|
816 static void
|
|
|
817 draw_arrow_left (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
818 int x, int y, int width, int height, int shadowT)
|
|
0
|
819 {
|
|
|
820 XSegment shine[10], shadow[10];
|
|
|
821 XPoint triangle[3];
|
|
|
822
|
|
102
|
823 int mid = width / 2;
|
|
0
|
824
|
|
76
|
825 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
826 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
102
|
827 if (shadowT < 0) shadowT = 0;
|
|
0
|
828
|
|
|
829 /* / */
|
|
76
|
830 make_hor_seg (shine,
|
|
102
|
831 x, y + mid,
|
|
76
|
832 x + width - shadowT - 1, y, shadowT);
|
|
0
|
833 /* \| */
|
|
76
|
834 make_hor_seg (shadow,
|
|
102
|
835 x, y + mid,
|
|
76
|
836 x + width - shadowT - 1, y + height - 1, shadowT);
|
|
|
837 make_hor_seg (shadow + shadowT,
|
|
|
838 x + width - shadowT - 1, y,
|
|
|
839 x + width - shadowT - 1, y + height - 1, shadowT);
|
|
0
|
840
|
|
|
841 triangle[0].x = x + width - 1;
|
|
|
842 triangle[0].y = y + height - 1;
|
|
|
843 triangle[1].x = x;
|
|
|
844 triangle[1].y = y + mid;
|
|
|
845 triangle[2].x = x + width - 1;
|
|
|
846 triangle[2].y = y;
|
|
|
847
|
|
76
|
848 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord);
|
|
0
|
849
|
|
76
|
850 XDrawSegments (dpy, win, shadowGC, shadow, shadowT * 2);
|
|
|
851 XDrawSegments (dpy, win, shineGC, shine, shadowT);
|
|
0
|
852 }
|
|
|
853
|
|
76
|
854 static void
|
|
|
855 draw_arrow_down (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
856 int x, int y, int width, int height, int shadowT)
|
|
0
|
857 {
|
|
|
858 XSegment shine[10], shadow[10];
|
|
|
859 XPoint triangle[3];
|
|
|
860 int mid;
|
|
|
861
|
|
|
862 mid = width / 2;
|
|
|
863
|
|
76
|
864 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
865 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
102
|
866 if (shadowT < 0) shadowT = 0;
|
|
183
|
867
|
|
0
|
868 /* \- */
|
|
76
|
869 make_vert_seg (shine,
|
|
102
|
870 x, y,
|
|
76
|
871 x + mid, y + height - shadowT - 1, shadowT);
|
|
|
872 make_vert_seg (shine + shadowT,
|
|
102
|
873 x, y,
|
|
76
|
874 x + width - 1, y, shadowT);
|
|
0
|
875 /* / */
|
|
76
|
876 make_vert_seg (shadow,
|
|
0
|
877 x + width - 1, y,
|
|
102
|
878 x + mid, y + height - shadowT - 1, shadowT);
|
|
0
|
879
|
|
|
880 triangle[0].x = x;
|
|
|
881 triangle[0].y = y;
|
|
|
882 triangle[1].x = x + mid;
|
|
|
883 triangle[1].y = y + height - 1;
|
|
|
884 triangle[2].x = x + width - 1;
|
|
|
885 triangle[2].y = y;
|
|
|
886
|
|
76
|
887 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord);
|
|
0
|
888
|
|
76
|
889 XDrawSegments (dpy, win, shadowGC, shadow, shadowT);
|
|
|
890 XDrawSegments (dpy, win, shineGC, shine, shadowT * 2);
|
|
0
|
891 }
|
|
|
892
|
|
76
|
893 static void
|
|
|
894 draw_arrow_right (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
895 int x, int y, int width, int height, int shadowT)
|
|
0
|
896 {
|
|
|
897 XSegment shine[10], shadow[10];
|
|
|
898 XPoint triangle[3];
|
|
|
899 int mid;
|
|
|
900
|
|
|
901 mid = width / 2;
|
|
|
902
|
|
76
|
903 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
904 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
102
|
905 if (shadowT < 0) shadowT = 0;
|
|
183
|
906
|
|
0
|
907 /* |\ */
|
|
76
|
908 make_hor_seg (shine,
|
|
102
|
909 x, y,
|
|
76
|
910 x + width - shadowT - 1, y + mid, shadowT);
|
|
|
911 make_hor_seg (shine + shadowT,
|
|
0
|
912 x, y,
|
|
102
|
913 x, y + height - 1, shadowT);
|
|
0
|
914 /* / */
|
|
76
|
915 make_hor_seg (shadow,
|
|
102
|
916 x, y + height - 1,
|
|
76
|
917 x + width - shadowT - 1, y + mid, shadowT);
|
|
0
|
918
|
|
|
919 triangle[0].x = x + 1;
|
|
|
920 triangle[0].y = y + height - 1;
|
|
102
|
921 triangle[1].x = x + width - 1;
|
|
0
|
922 triangle[1].y = y + mid;
|
|
|
923 triangle[2].x = x + 1;
|
|
|
924 triangle[2].y = y;
|
|
|
925
|
|
76
|
926 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord);
|
|
0
|
927
|
|
76
|
928 XDrawSegments (dpy, win, shadowGC, shadow, shadowT);
|
|
|
929 XDrawSegments (dpy, win, shineGC, shine, shadowT * 2);
|
|
0
|
930 }
|
|
|
931
|
|
76
|
932 static void
|
|
|
933 draw_dimple (Display *dpy, Drawable win, GC shine, GC shadow,
|
|
|
934 int x, int y, int width, int height)
|
|
0
|
935 {
|
|
76
|
936 XDrawArc (dpy, win, shine, x, y, width, height, 46*64, 180*64);
|
|
|
937 XDrawArc (dpy, win, shadow, x, y, width, height, 45*64, -179*64);
|
|
0
|
938 }
|
|
|
939
|
|
102
|
940 /*------- Scrollbar values -> pixels, pixels -> scrollbar values --------*/
|
|
0
|
941
|
|
76
|
942 static void
|
|
|
943 seg_pixel_sizes (XlwScrollBarWidget w, int *above_return,
|
|
|
944 int *ss_return, int *below_return)
|
|
0
|
945 {
|
|
|
946 float total, height, fuz;
|
|
272
|
947 int value, above, ss, below;
|
|
0
|
948
|
|
272
|
949 height = widget_h (w);
|
|
76
|
950 if (w->sb.showArrows) height -= (2 * arrow_h (w));
|
|
0
|
951
|
|
|
952 value = w->sb.value - w->sb.minimum;
|
|
|
953
|
|
|
954 total = w->sb.maximum - w->sb.minimum;
|
|
|
955 fuz = total / 2;
|
|
|
956
|
|
272
|
957 ss = (int) ((height * w->sb.sliderSize + fuz) / total);
|
|
|
958 above = (int) ((height * value + fuz) / total);
|
|
|
959 below = (int) ((height) - (ss + above));
|
|
0
|
960
|
|
102
|
961 /* Don't let slider get smaller than SS_MIN */
|
|
76
|
962 if (ss < SS_MIN)
|
|
|
963 {
|
|
|
964 /* add a percent amount for integer rounding */
|
|
|
965 float tmp = ((((float) (SS_MIN - ss) * (float) value)) / total) + 0.5;
|
|
0
|
966
|
|
76
|
967 above -= (int) tmp;
|
|
102
|
968 ss = SS_MIN;
|
|
272
|
969 below = (int) ((height) - (ss + above));
|
|
0
|
970
|
|
76
|
971 if (above < 0)
|
|
|
972 {
|
|
0
|
973 above = 0;
|
|
272
|
974 below = (int) (height - ss);
|
|
76
|
975 }
|
|
|
976 if (below < 0)
|
|
|
977 {
|
|
272
|
978 above = (int) (height - ss);
|
|
0
|
979 below = 0;
|
|
76
|
980 }
|
|
|
981 if (ss > height)
|
|
|
982 {
|
|
0
|
983 above = 0;
|
|
272
|
984 ss = (int) height;
|
|
0
|
985 below = 0;
|
|
76
|
986 }
|
|
|
987 }
|
|
0
|
988
|
|
|
989 *above_return = above;
|
|
|
990 *ss_return = ss;
|
|
|
991 *below_return = below;
|
|
|
992
|
|
76
|
993 CHECK (w);
|
|
0
|
994 }
|
|
|
995
|
|
76
|
996 static void
|
|
|
997 verify_values (XlwScrollBarWidget w)
|
|
0
|
998 {
|
|
|
999 int total = w->sb.maximum - w->sb.minimum;
|
|
|
1000
|
|
76
|
1001 if (w->sb.sliderSize > total)
|
|
0
|
1002 w->sb.sliderSize = total;
|
|
76
|
1003
|
|
|
1004 if (w->sb.pageIncrement > total)
|
|
0
|
1005 w->sb.pageIncrement = total;
|
|
76
|
1006
|
|
|
1007 if (w->sb.increment > total)
|
|
0
|
1008 w->sb.increment = total;
|
|
76
|
1009
|
|
|
1010 if (w->sb.value < w->sb.minimum)
|
|
0
|
1011 w->sb.value = w->sb.minimum;
|
|
76
|
1012
|
|
102
|
1013 if (w->sb.value > w->sb.maximum)
|
|
|
1014 w->sb.value = w->sb.maximum;
|
|
|
1015
|
|
|
1016 if (w->sb.sliderSize > w->sb.maximum - w->sb.value)
|
|
|
1017 w->sb.sliderSize = w->sb.maximum - w->sb.value;
|
|
0
|
1018 }
|
|
|
1019
|
|
76
|
1020 static int
|
|
|
1021 value_from_pixel (XlwScrollBarWidget w, int above)
|
|
0
|
1022 {
|
|
|
1023 float total, height, fuz;
|
|
|
1024 int value, ss;
|
|
|
1025
|
|
102
|
1026 height = widget_h (w);
|
|
|
1027 if (w->sb.showArrows)
|
|
|
1028 height -= (2 * arrow_h (w));
|
|
0
|
1029
|
|
|
1030 total = w->sb.maximum - w->sb.minimum;
|
|
76
|
1031 fuz = height / 2;
|
|
0
|
1032
|
|
272
|
1033 ss = (int) ((height * w->sb.sliderSize + (total / 2)) / total);
|
|
0
|
1034
|
|
76
|
1035 if (ss < SS_MIN)
|
|
|
1036 {
|
|
|
1037 /* add a percent amount for integer rounding */
|
|
272
|
1038 above += (int) ((((SS_MIN - ss) * above) + fuz) / height);
|
|
76
|
1039 }
|
|
0
|
1040
|
|
|
1041 {
|
|
76
|
1042 /* Prevent SIGFPE's that would occur if we don't truncate the value. */
|
|
|
1043 float floatval = w->sb.minimum + ((float)(above * total + fuz) / height);
|
|
0
|
1044 if (floatval >= (float) INT_MAX)
|
|
|
1045 value = INT_MAX;
|
|
|
1046 else if (floatval <= (float) INT_MIN)
|
|
|
1047 value = INT_MIN;
|
|
|
1048 else
|
|
272
|
1049 value = (int) floatval;
|
|
0
|
1050 }
|
|
|
1051
|
|
76
|
1052 return value;
|
|
0
|
1053 }
|
|
|
1054
|
|
|
1055
|
|
76
|
1056 static void
|
|
|
1057 redraw_dimple (XlwScrollBarWidget w, Display *dpy, Window win,
|
|
|
1058 int x, int y, int width, int height)
|
|
0
|
1059 {
|
|
102
|
1060 if (SLIDER_DIMPLE == slider_style (w))
|
|
76
|
1061 {
|
|
102
|
1062 int size;
|
|
|
1063 int slider_p = (w->sb.armed == ARM_SLIDER);
|
|
|
1064 GC shine = slider_p ? w->sb.bottomShadowGC : w->sb.topShadowGC;
|
|
|
1065 GC shadow = slider_p ? w->sb.topShadowGC : w->sb.bottomShadowGC;
|
|
|
1066 int shadowT = w->sb.shadowThickness;
|
|
0
|
1067
|
|
|
1068 x += shadowT;
|
|
|
1069 y += shadowT;
|
|
|
1070 width -= 2*shadowT;
|
|
|
1071 height -= 2*shadowT;
|
|
|
1072
|
|
|
1073 size = (width < height ? width : height) * 3 / 4;
|
|
|
1074
|
|
76
|
1075 if (size%2 != (width < height ? width : height)%2) size--;
|
|
0
|
1076
|
|
76
|
1077 DBUG (fprintf (stderr, "%d %d\n",
|
|
|
1078 x + (width / 2) - (size / 2) - 2*shadowT,
|
|
|
1079 width - size - shadowT));
|
|
0
|
1080
|
|
76
|
1081 draw_dimple (dpy, win, shine, shadow,
|
|
|
1082 x + (width / 2) - (size / 2),
|
|
0
|
1083 y + (height / 2) - (size / 2),
|
|
76
|
1084 size, size);
|
|
|
1085 }
|
|
0
|
1086 }
|
|
|
1087
|
|
76
|
1088 static void
|
|
102
|
1089 draw_slider (XlwScrollBarWidget w, int above, int ss, int below)
|
|
0
|
1090 {
|
|
76
|
1091 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1092 Window win = XtWindow ((Widget) w);
|
|
0
|
1093
|
|
102
|
1094 int x = widget_x (w);
|
|
|
1095 int y = widget_y (w);
|
|
|
1096 int width = widget_w (w);
|
|
|
1097 int height = widget_h (w);
|
|
|
1098 int shadowT = w->sb.shadowThickness;
|
|
|
1099 int vert_p = VERT (w);
|
|
0
|
1100
|
|
76
|
1101 if (shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
1102 if (shadowT > (height / 2)) shadowT = (height / 2);
|
|
102
|
1103 if (shadowT < 0) shadowT = 0;
|
|
0
|
1104
|
|
102
|
1105 if (w->sb.showArrows && !arrow_same_end (w))
|
|
|
1106 y += arrow_h (w);
|
|
0
|
1107
|
|
102
|
1108 /* trough above slider */
|
|
76
|
1109 if (above > 0)
|
|
|
1110 {
|
|
102
|
1111 if (vert_p)
|
|
76
|
1112 XClearArea (dpy, win, x, y, width, above, False);
|
|
0
|
1113 else
|
|
76
|
1114 XClearArea (dpy, win, y, x, above, width, False);
|
|
|
1115 }
|
|
0
|
1116
|
|
102
|
1117 /* slider */
|
|
|
1118 if (vert_p)
|
|
76
|
1119 {
|
|
|
1120 draw_shadows (dpy, win, w->sb.topShadowGC, w->sb.bottomShadowGC,
|
|
0
|
1121 x, y + above, width, ss, shadowT);
|
|
102
|
1122 XFillRectangle (dpy, win, w->sb.backgroundGC,
|
|
|
1123 x+shadowT, y + above + shadowT,
|
|
|
1124 width-2*shadowT, ss-2*shadowT);
|
|
76
|
1125 redraw_dimple (w, dpy, win, x, y + above, width, ss);
|
|
|
1126 }
|
|
0
|
1127 else
|
|
76
|
1128 {
|
|
|
1129 draw_shadows (dpy, win, w->sb.topShadowGC, w->sb.bottomShadowGC,
|
|
0
|
1130 y + above, x, ss, width, shadowT);
|
|
102
|
1131 XFillRectangle (dpy, win, w->sb.backgroundGC,
|
|
|
1132 y + above + shadowT, x+shadowT,
|
|
|
1133 ss-2*shadowT, width-2*shadowT);
|
|
76
|
1134 redraw_dimple (w, dpy, win, y + above, x, ss, width);
|
|
|
1135 }
|
|
0
|
1136
|
|
102
|
1137 /* trough below slider */
|
|
76
|
1138 if (below > 0)
|
|
|
1139 {
|
|
102
|
1140 if (vert_p)
|
|
76
|
1141 XClearArea (dpy, win, x, y + above + ss, width, below, False);
|
|
0
|
1142 else
|
|
76
|
1143 XClearArea (dpy, win, y + above + ss, x, below, width, False);
|
|
|
1144 }
|
|
0
|
1145
|
|
76
|
1146 CHECK (w);
|
|
0
|
1147 }
|
|
|
1148
|
|
76
|
1149 static void
|
|
|
1150 redraw_up_arrow (XlwScrollBarWidget w, Boolean armed, Boolean clear_behind)
|
|
0
|
1151 {
|
|
76
|
1152 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1153 Window win = XtWindow ((Widget) w);
|
|
0
|
1154
|
|
102
|
1155 int x = widget_x (w);
|
|
|
1156 int y = widget_y (w);
|
|
|
1157 int width = widget_w (w);
|
|
|
1158 int height = widget_h (w);
|
|
|
1159 int shadowT = w->sb.shadowThickness;
|
|
|
1160 int arrow_height = arrow_h (w);
|
|
0
|
1161
|
|
102
|
1162 GC bg = w->sb.backgroundGC;
|
|
|
1163 GC shine = armed ? w->sb.bottomShadowGC : w->sb.topShadowGC;
|
|
|
1164 GC shadow = armed ? w->sb.topShadowGC : w->sb.bottomShadowGC;
|
|
70
|
1165
|
|
76
|
1166 if (VERT (w))
|
|
|
1167 {
|
|
|
1168 if (arrow_same_end (w))
|
|
102
|
1169 y += height - 2 * arrow_height;
|
|
76
|
1170 if (clear_behind)
|
|
|
1171 XClearArea (dpy, win, x, y, width, arrow_height + 1, False);
|
|
|
1172 draw_arrow_up (dpy, win, bg, shine, shadow,
|
|
0
|
1173 x + (width - arrow_height)/2, y,
|
|
76
|
1174 arrow_height, arrow_height, shadowT);
|
|
|
1175 }
|
|
0
|
1176 else
|
|
76
|
1177 {
|
|
|
1178 if (arrow_same_end (w))
|
|
102
|
1179 y += height - 2 * arrow_height;
|
|
76
|
1180 if (clear_behind)
|
|
|
1181 XClearArea (dpy, win, y, x, arrow_height + 1, height, False);
|
|
|
1182 draw_arrow_left (dpy, win, bg, shine, shadow,
|
|
0
|
1183 y, x + (width - arrow_height)/2,
|
|
76
|
1184 arrow_height, arrow_height, shadowT);
|
|
|
1185 }
|
|
0
|
1186 }
|
|
|
1187
|
|
76
|
1188 static void
|
|
|
1189 redraw_down_arrow (XlwScrollBarWidget w, Boolean armed, Boolean clear_behind)
|
|
0
|
1190 {
|
|
76
|
1191 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1192 Window win = XtWindow ((Widget) w);
|
|
0
|
1193
|
|
102
|
1194 int x = widget_x (w);
|
|
|
1195 int y = widget_y (w);
|
|
|
1196 int width = widget_w (w);
|
|
|
1197 int height = widget_h (w);
|
|
|
1198 int shadowT = w->sb.shadowThickness;
|
|
|
1199 int arrow_height = arrow_h (w);
|
|
0
|
1200
|
|
102
|
1201 GC bg = w->sb.backgroundGC;
|
|
|
1202 GC shine = armed ? w->sb.bottomShadowGC : w->sb.topShadowGC;
|
|
|
1203 GC shadow = armed ? w->sb.topShadowGC : w->sb.bottomShadowGC;
|
|
70
|
1204
|
|
76
|
1205 if (VERT (w))
|
|
|
1206 {
|
|
|
1207 if (clear_behind)
|
|
|
1208 XClearArea (dpy, win, x, y + height - arrow_height, width,
|
|
|
1209 arrow_height + 1, False);
|
|
|
1210 draw_arrow_down (dpy, win, bg, shine, shadow,
|
|
|
1211 x + (width - arrow_height)/2,
|
|
|
1212 y + height - arrow_height + 1,
|
|
|
1213 arrow_height, arrow_height, shadowT);
|
|
|
1214 }
|
|
70
|
1215 else
|
|
76
|
1216 {
|
|
|
1217 if (clear_behind)
|
|
|
1218 XClearArea (dpy, win, y + height - arrow_height, x,
|
|
|
1219 arrow_height + 1, height, False);
|
|
|
1220 draw_arrow_right (dpy, win, bg, shine, shadow,
|
|
|
1221 y + height - arrow_height + 1,
|
|
|
1222 x + (width - arrow_height)/2,
|
|
|
1223 arrow_height, arrow_height, shadowT);
|
|
|
1224 }
|
|
0
|
1225 }
|
|
|
1226
|
|
76
|
1227 static void
|
|
|
1228 redraw_everything (XlwScrollBarWidget w, Region region, Boolean behind_arrows)
|
|
0
|
1229 {
|
|
76
|
1230 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1231 Window win = XtWindow ((Widget) w);
|
|
26
|
1232
|
|
76
|
1233 if (w->sb.showArrows)
|
|
|
1234 {
|
|
102
|
1235 if (region == NULL)
|
|
76
|
1236 {
|
|
102
|
1237 redraw_up_arrow (w, False, behind_arrows);
|
|
|
1238 redraw_down_arrow (w, False, behind_arrows);
|
|
76
|
1239 }
|
|
70
|
1240 else
|
|
76
|
1241 {
|
|
102
|
1242 int x = widget_x (w);
|
|
|
1243 int y = widget_y (w);
|
|
|
1244 int width = widget_w (w);
|
|
|
1245 int height = widget_h (w);
|
|
|
1246 int arrow_height = arrow_h (w);
|
|
|
1247 int ax = x, ay = y;
|
|
|
1248
|
|
|
1249 if (arrow_same_end (w))
|
|
|
1250 {
|
|
|
1251 if (VERT (w))
|
|
|
1252 ay = y + height - arrow_height - arrow_height;
|
|
|
1253 else
|
|
|
1254 ax = x + height - arrow_height - arrow_height;
|
|
|
1255 }
|
|
|
1256 if (XRectInRegion (region, ax, ay, width, width))
|
|
|
1257 redraw_up_arrow (w, False, behind_arrows);
|
|
|
1258
|
|
|
1259 if (VERT (w))
|
|
|
1260 ay = y + height - arrow_height;
|
|
|
1261 else
|
|
|
1262 ax = x + height - arrow_height;
|
|
|
1263 if (XRectInRegion (region, ax, ay, width, width))
|
|
|
1264 redraw_down_arrow (w, False, behind_arrows);
|
|
76
|
1265 }
|
|
|
1266 }
|
|
26
|
1267
|
|
102
|
1268 draw_shadows (dpy, win, w->sb.bottomShadowGC, w->sb.topShadowGC, 0, 0,
|
|
|
1269 w->core.width, w->core.height, w->sb.shadowThickness);
|
|
0
|
1270
|
|
102
|
1271 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
0
|
1272 }
|
|
|
1273
|
|
102
|
1274 /*-------------------------- Method Functions ---------------------------*/
|
|
0
|
1275
|
|
76
|
1276 static void
|
|
|
1277 Initialize (Widget treq, Widget tnew, ArgList args, Cardinal *num_args)
|
|
0
|
1278 {
|
|
|
1279 XlwScrollBarWidget request = (XlwScrollBarWidget) treq;
|
|
|
1280 XlwScrollBarWidget w = (XlwScrollBarWidget) tnew;
|
|
76
|
1281 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1282 Window win = RootWindowOfScreen (DefaultScreenOfDisplay (dpy));
|
|
70
|
1283
|
|
76
|
1284 if (request->core.width == 0) w->core.width += (VERT (w) ? 12 : 25);
|
|
|
1285 if (request->core.height == 0) w->core.height += (VERT (w) ? 25 : 12);
|
|
0
|
1286
|
|
76
|
1287 verify_values (w);
|
|
0
|
1288
|
|
|
1289 w->sb.lastY = 0;
|
|
|
1290 w->sb.above = 0;
|
|
|
1291 w->sb.ss = 0;
|
|
|
1292 w->sb.below = 0;
|
|
|
1293 w->sb.armed = ARM_NONE;
|
|
102
|
1294 w->sb.forced_scroll = FORCED_SCROLL_NONE;
|
|
0
|
1295
|
|
76
|
1296 if (w->sb.shadowThickness > 5) w->sb.shadowThickness = 5;
|
|
0
|
1297
|
|
|
1298 w->sb.grayPixmap =
|
|
76
|
1299 XCreatePixmapFromBitmapData (dpy, win, (char *) gray_bits, gray_width,
|
|
|
1300 gray_height, 1, 0, 1);
|
|
0
|
1301
|
|
76
|
1302 make_trough_pixel (w);
|
|
|
1303
|
|
|
1304 make_shadow_pixels (w);
|
|
0
|
1305
|
|
76
|
1306 w->sb.backgroundGC =
|
|
|
1307 get_gc (w, w->core.background_pixel, w->core.background_pixel, None);
|
|
|
1308 w->sb.topShadowGC =
|
|
|
1309 get_gc (w, w->sb.topShadowColor, w->core.background_pixel,
|
|
|
1310 w->sb.topShadowPixmap);
|
|
|
1311 w->sb.bottomShadowGC =
|
|
|
1312 get_gc (w, w->sb.bottomShadowColor, w->core.background_pixel,
|
|
|
1313 w->sb.bottomShadowPixmap);
|
|
0
|
1314
|
|
|
1315 w->sb.fullRedrawNext = True;
|
|
76
|
1316
|
|
|
1317 w->sb.timerActive = False;
|
|
0
|
1318 }
|
|
|
1319
|
|
76
|
1320 static void
|
|
|
1321 Destroy (Widget widget)
|
|
0
|
1322 {
|
|
|
1323 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
76
|
1324 Display *dpy = XtDisplay ((Widget) w);
|
|
0
|
1325
|
|
76
|
1326 XtReleaseGC (widget, w->sb.bottomShadowGC);
|
|
|
1327 XtReleaseGC (widget, w->sb.topShadowGC);
|
|
|
1328 XtReleaseGC (widget, w->sb.backgroundGC);
|
|
10
|
1329
|
|
76
|
1330 XFreePixmap (dpy, w->sb.grayPixmap);
|
|
|
1331
|
|
|
1332 if (w->sb.timerActive)
|
|
102
|
1333 {
|
|
|
1334 XtRemoveTimeOut (w->sb.timerId);
|
|
|
1335 w->sb.timerActive = False; /* Should be a no-op, but you never know */
|
|
|
1336 }
|
|
0
|
1337 }
|
|
|
1338
|
|
76
|
1339 static void
|
|
|
1340 Realize (Widget widget, XtValueMask *valuemask, XSetWindowAttributes *attr)
|
|
0
|
1341 {
|
|
|
1342 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
76
|
1343 Display *dpy = XtDisplay ((Widget) w);
|
|
0
|
1344 Window win;
|
|
|
1345 XSetWindowAttributes win_attr;
|
|
|
1346
|
|
|
1347 (*coreClassRec.core_class.realize)(widget, valuemask, attr);
|
|
|
1348
|
|
76
|
1349 win = XtWindow ((Widget) w);
|
|
0
|
1350
|
|
76
|
1351 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
0
|
1352
|
|
76
|
1353 XSetWindowBackground (dpy, win, w->sb.troughColor);
|
|
0
|
1354
|
|
|
1355 /* Change bit gravity so widget is not cleared on resize */
|
|
102
|
1356 win_attr.bit_gravity = NorthWestGravity;
|
|
76
|
1357 XChangeWindowAttributes (dpy, win, CWBitGravity , &win_attr);
|
|
0
|
1358
|
|
|
1359 }
|
|
|
1360
|
|
76
|
1361 static void
|
|
|
1362 Resize (Widget widget)
|
|
0
|
1363 {
|
|
|
1364 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
76
|
1365 Display *dpy = XtDisplay ((Widget) w);
|
|
|
1366 Window win = XtWindow ((Widget) w);
|
|
0
|
1367
|
|
76
|
1368 if (XtIsRealized (widget))
|
|
|
1369 {
|
|
|
1370 DBUG (fprintf (stderr, "Resize = %08lx\n", w));
|
|
0
|
1371
|
|
76
|
1372 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
0
|
1373
|
|
102
|
1374 /* redraw_everything (w, NULL, True); */
|
|
0
|
1375
|
|
|
1376 w->sb.fullRedrawNext = True;
|
|
|
1377 /* Force expose event */
|
|
102
|
1378 XClearArea (dpy, win, widget_x (w), widget_y (w), 1, 1, True);
|
|
|
1379 }
|
|
|
1380
|
|
|
1381 if (w->sb.timerActive)
|
|
|
1382 {
|
|
|
1383 XtRemoveTimeOut (w->sb.timerId);
|
|
|
1384 w->sb.timerActive = False;
|
|
76
|
1385 }
|
|
0
|
1386 }
|
|
|
1387
|
|
76
|
1388 static void
|
|
|
1389 Redisplay (Widget widget, XEvent *event, Region region)
|
|
0
|
1390 {
|
|
|
1391 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1392
|
|
76
|
1393 DBUG (fprintf (stderr, "Redisplay = %08lx\n", w));
|
|
0
|
1394
|
|
76
|
1395 if (XtIsRealized (widget))
|
|
|
1396 {
|
|
|
1397 if (w->sb.fullRedrawNext)
|
|
102
|
1398 redraw_everything (w, NULL, True);
|
|
0
|
1399 else
|
|
102
|
1400 redraw_everything (w, region, False);
|
|
0
|
1401 w->sb.fullRedrawNext = False;
|
|
76
|
1402 }
|
|
0
|
1403 }
|
|
|
1404
|
|
76
|
1405 static Boolean
|
|
|
1406 SetValues (Widget current, Widget request, Widget neww,
|
|
|
1407 ArgList args, Cardinal *num_args)
|
|
0
|
1408 {
|
|
|
1409 XlwScrollBarWidget cur = (XlwScrollBarWidget) current;
|
|
|
1410 XlwScrollBarWidget w = (XlwScrollBarWidget) neww;
|
|
|
1411 Boolean do_redisplay = False;
|
|
|
1412
|
|
76
|
1413 if (cur->sb.troughColor != w->sb.troughColor)
|
|
|
1414 {
|
|
|
1415 if (XtIsRealized ((Widget) w))
|
|
|
1416 {
|
|
|
1417 XSetWindowBackground (XtDisplay((Widget) w), XtWindow ((Widget) w),
|
|
0
|
1418 w->sb.troughColor);
|
|
|
1419 do_redisplay = True;
|
|
76
|
1420 }
|
|
|
1421 }
|
|
0
|
1422
|
|
76
|
1423 if (cur->core.background_pixel != w->core.background_pixel)
|
|
|
1424 {
|
|
|
1425 XtReleaseGC ((Widget)cur, cur->sb.backgroundGC);
|
|
|
1426 w->sb.backgroundGC =
|
|
|
1427 get_gc (w, w->core.background_pixel, w->core.background_pixel, None);
|
|
0
|
1428 do_redisplay = True;
|
|
76
|
1429 }
|
|
0
|
1430
|
|
76
|
1431 if (cur->sb.topShadowColor != w->sb.topShadowColor ||
|
|
|
1432 cur->sb.topShadowPixmap != w->sb.topShadowPixmap)
|
|
|
1433 {
|
|
|
1434 XtReleaseGC ((Widget)cur, cur->sb.topShadowGC);
|
|
|
1435 w->sb.topShadowGC =
|
|
|
1436 get_gc (w, w->sb.topShadowColor, w->core.background_pixel,
|
|
|
1437 w->sb.topShadowPixmap);
|
|
0
|
1438 do_redisplay = True;
|
|
76
|
1439 }
|
|
0
|
1440
|
|
76
|
1441 if (cur->sb.bottomShadowColor != w->sb.bottomShadowColor ||
|
|
|
1442 cur->sb.bottomShadowPixmap != w->sb.bottomShadowPixmap)
|
|
|
1443 {
|
|
|
1444 XtReleaseGC ((Widget)cur, cur->sb.bottomShadowGC);
|
|
|
1445 w->sb.bottomShadowGC =
|
|
|
1446 get_gc (w, w->sb.bottomShadowColor, w->core.background_pixel,
|
|
|
1447 w->sb.bottomShadowPixmap);
|
|
0
|
1448 do_redisplay = True;
|
|
76
|
1449 }
|
|
0
|
1450
|
|
76
|
1451 if (cur->sb.orientation != w->sb.orientation)
|
|
102
|
1452 do_redisplay = True;
|
|
0
|
1453
|
|
|
1454
|
|
76
|
1455 if (cur->sb.minimum != w->sb.minimum ||
|
|
0
|
1456 cur->sb.maximum != w->sb.maximum ||
|
|
|
1457 cur->sb.sliderSize != w->sb.sliderSize ||
|
|
|
1458 cur->sb.value != w->sb.value ||
|
|
|
1459 cur->sb.pageIncrement != w->sb.pageIncrement ||
|
|
76
|
1460 cur->sb.increment != w->sb.increment)
|
|
|
1461 {
|
|
|
1462 verify_values (w);
|
|
|
1463 if (XtIsRealized ((Widget) w))
|
|
|
1464 {
|
|
|
1465 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
102
|
1466 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
76
|
1467 }
|
|
|
1468 }
|
|
0
|
1469
|
|
76
|
1470 if (w->sb.shadowThickness > 5) w->sb.shadowThickness = 5;
|
|
0
|
1471
|
|
76
|
1472 return do_redisplay;
|
|
0
|
1473 }
|
|
|
1474
|
|
76
|
1475 void
|
|
|
1476 XlwScrollBarGetValues (Widget widget, int *value, int *sliderSize,
|
|
|
1477 int *increment, int *pageIncrement)
|
|
0
|
1478 {
|
|
76
|
1479 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
0
|
1480
|
|
76
|
1481 if (w && XtClass ((Widget) w) == xlwScrollBarWidgetClass)
|
|
|
1482 {
|
|
|
1483 if (value) *value = w->sb.value;
|
|
|
1484 if (sliderSize) *sliderSize = w->sb.sliderSize;
|
|
|
1485 if (increment) *increment = w->sb.increment;
|
|
|
1486 if (pageIncrement) *pageIncrement = w->sb.pageIncrement;
|
|
|
1487 }
|
|
0
|
1488 }
|
|
|
1489
|
|
76
|
1490 void
|
|
|
1491 XlwScrollBarSetValues (Widget widget, int value, int sliderSize,
|
|
|
1492 int increment, int pageIncrement, Boolean notify)
|
|
0
|
1493 {
|
|
76
|
1494 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
0
|
1495
|
|
76
|
1496 if (w && XtClass ((Widget) w) == xlwScrollBarWidgetClass &&
|
|
0
|
1497 (w->sb.value != value ||
|
|
|
1498 w->sb.sliderSize != sliderSize ||
|
|
|
1499 w->sb.increment != increment ||
|
|
76
|
1500 w->sb.pageIncrement != pageIncrement))
|
|
|
1501 {
|
|
102
|
1502 int last_value = w->sb.value;
|
|
183
|
1503
|
|
0
|
1504 w->sb.value = value;
|
|
|
1505 w->sb.sliderSize = sliderSize;
|
|
|
1506 w->sb.increment = increment;
|
|
|
1507 w->sb.pageIncrement = pageIncrement;
|
|
|
1508
|
|
76
|
1509 verify_values (w);
|
|
70
|
1510
|
|
76
|
1511 if (XtIsRealized (widget))
|
|
|
1512 {
|
|
|
1513 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
102
|
1514 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
0
|
1515
|
|
76
|
1516 if (w->sb.value != last_value && notify)
|
|
102
|
1517 call_callbacks (w, XmCR_VALUE_CHANGED, w->sb.value, 0, NULL);
|
|
76
|
1518 }
|
|
|
1519 }
|
|
0
|
1520 }
|
|
|
1521
|
|
102
|
1522 /*-------------------------- Action Functions ---------------------------*/
|
|
0
|
1523
|
|
76
|
1524 static void
|
|
|
1525 timer (XtPointer data, XtIntervalId *id)
|
|
0
|
1526 {
|
|
76
|
1527 XlwScrollBarWidget w = (XlwScrollBarWidget) data;
|
|
|
1528 w->sb.timerActive = False;
|
|
0
|
1529
|
|
76
|
1530 if (w->sb.armed != ARM_NONE)
|
|
|
1531 {
|
|
102
|
1532 int last_value = w->sb.value;
|
|
173
|
1533 int reason;
|
|
0
|
1534
|
|
76
|
1535 switch (w->sb.armed)
|
|
|
1536 {
|
|
|
1537 case ARM_PAGEUP:
|
|
102
|
1538 decrement_value (w, w->sb.pageIncrement);
|
|
76
|
1539 reason = XmCR_PAGE_DECREMENT;
|
|
|
1540 break;
|
|
|
1541 case ARM_PAGEDOWN:
|
|
102
|
1542 increment_value (w, w->sb.pageIncrement);
|
|
76
|
1543 reason = XmCR_PAGE_INCREMENT;
|
|
|
1544 break;
|
|
|
1545 case ARM_UP:
|
|
102
|
1546 decrement_value (w, w->sb.increment);
|
|
76
|
1547 reason = XmCR_DECREMENT;
|
|
|
1548 break;
|
|
|
1549 case ARM_DOWN:
|
|
102
|
1550 increment_value (w, w->sb.increment);
|
|
76
|
1551 reason = XmCR_INCREMENT;
|
|
|
1552 break;
|
|
173
|
1553 default:
|
|
|
1554 reason = XmCR_NONE;
|
|
76
|
1555 }
|
|
0
|
1556
|
|
76
|
1557 verify_values (w);
|
|
|
1558
|
|
|
1559 if (last_value != w->sb.value)
|
|
|
1560 {
|
|
|
1561 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
102
|
1562 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
0
|
1563
|
|
76
|
1564 call_callbacks (w, reason, w->sb.value, 0, NULL);
|
|
0
|
1565
|
|
76
|
1566 w->sb.timerId =
|
|
|
1567 XtAppAddTimeOut (XtWidgetToApplicationContext ((Widget) w),
|
|
|
1568 (unsigned long) w->sb.repeatDelay,
|
|
|
1569 timer, (XtPointer) w);
|
|
|
1570 w->sb.timerActive = True;
|
|
|
1571 }
|
|
|
1572 }
|
|
0
|
1573 }
|
|
|
1574
|
|
102
|
1575 static button_where
|
|
76
|
1576 what_button (XlwScrollBarWidget w, int mouse_x, int mouse_y)
|
|
0
|
1577 {
|
|
102
|
1578 int width = widget_w (w);
|
|
|
1579 int height = widget_h (w);
|
|
|
1580 int arrow_height = arrow_h (w);
|
|
70
|
1581
|
|
102
|
1582 mouse_x -= widget_x (w);
|
|
|
1583 mouse_y -= widget_y (w);
|
|
0
|
1584
|
|
102
|
1585 if (mouse_x < 0 || mouse_x >= width ||
|
|
|
1586 mouse_y < 0 || mouse_y >= height)
|
|
|
1587 return BUTTON_NONE;
|
|
|
1588
|
|
76
|
1589 if (w->sb.showArrows)
|
|
|
1590 {
|
|
102
|
1591 if (mouse_y >= (height -= arrow_height))
|
|
|
1592 return BUTTON_DOWN_ARROW;
|
|
183
|
1593
|
|
76
|
1594 if (arrow_same_end (w))
|
|
|
1595 {
|
|
102
|
1596 if (mouse_y >= (height -= arrow_height))
|
|
|
1597 return BUTTON_UP_ARROW;
|
|
76
|
1598 }
|
|
70
|
1599 else
|
|
102
|
1600 if ( (mouse_y -= arrow_height) < 0)
|
|
|
1601 return BUTTON_UP_ARROW;
|
|
76
|
1602 }
|
|
183
|
1603
|
|
102
|
1604 if ( (mouse_y -= w->sb.above) < 0)
|
|
|
1605 return BUTTON_TROUGH_ABOVE;
|
|
26
|
1606
|
|
102
|
1607 if ( (mouse_y -= w->sb.ss) < 0)
|
|
|
1608 return BUTTON_SLIDER;
|
|
|
1609
|
|
|
1610 return BUTTON_TROUGH_BELOW;
|
|
0
|
1611 }
|
|
|
1612
|
|
76
|
1613 static void
|
|
|
1614 Select (Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
0
|
1615 {
|
|
76
|
1616 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
102
|
1617 button_where sb_button;
|
|
0
|
1618
|
|
102
|
1619 int mouse_x = event_x (w, event);
|
|
|
1620 int mouse_y = event_y (w, event);
|
|
0
|
1621
|
|
102
|
1622 int last_value = w->sb.savedValue = w->sb.value;
|
|
|
1623 int reason = XmCR_NONE;
|
|
0
|
1624
|
|
76
|
1625 XtGrabKeyboard ((Widget) w, False, GrabModeAsync, GrabModeAsync,
|
|
|
1626 event->xbutton.time);
|
|
10
|
1627
|
|
76
|
1628 sb_button = what_button (w, mouse_x, mouse_y);
|
|
|
1629
|
|
102
|
1630 if (w->sb.forced_scroll != FORCED_SCROLL_NONE)
|
|
0
|
1631 {
|
|
102
|
1632 switch (sb_button)
|
|
0
|
1633 {
|
|
|
1634 case BUTTON_TROUGH_ABOVE:
|
|
|
1635 case BUTTON_TROUGH_BELOW:
|
|
102
|
1636 case BUTTON_SLIDER:
|
|
0
|
1637 sb_button= BUTTON_NONE; /* cause next switch to fall through */
|
|
102
|
1638 if (w->sb.forced_scroll == FORCED_SCROLL_UPLEFT)
|
|
0
|
1639 {
|
|
102
|
1640 decrement_value (w, w->sb.pageIncrement);
|
|
0
|
1641 w->sb.armed = ARM_PAGEUP;
|
|
|
1642 reason = XmCR_PAGE_DECREMENT;
|
|
|
1643 break;
|
|
|
1644 }
|
|
102
|
1645 else if (w->sb.forced_scroll == FORCED_SCROLL_DOWNRIGHT)
|
|
0
|
1646 {
|
|
102
|
1647 increment_value (w, w->sb.pageIncrement);
|
|
0
|
1648 w->sb.armed = ARM_PAGEDOWN;
|
|
|
1649 reason = XmCR_PAGE_INCREMENT;
|
|
|
1650 break;
|
|
|
1651 }
|
|
|
1652 abort();
|
|
173
|
1653 default:
|
|
|
1654 ; /* Do nothing */
|
|
0
|
1655 }
|
|
|
1656 }
|
|
|
1657
|
|
76
|
1658 switch (sb_button)
|
|
|
1659 {
|
|
|
1660 case BUTTON_TROUGH_ABOVE:
|
|
102
|
1661 decrement_value (w, w->sb.pageIncrement);
|
|
76
|
1662 w->sb.armed = ARM_PAGEUP;
|
|
|
1663 reason = XmCR_PAGE_DECREMENT;
|
|
|
1664 break;
|
|
|
1665 case BUTTON_TROUGH_BELOW:
|
|
102
|
1666 increment_value (w, w->sb.pageIncrement);
|
|
76
|
1667 w->sb.armed = ARM_PAGEDOWN;
|
|
|
1668 reason = XmCR_PAGE_INCREMENT;
|
|
|
1669 break;
|
|
102
|
1670 case BUTTON_SLIDER:
|
|
76
|
1671 w->sb.lastY = mouse_y;
|
|
102
|
1672 w->sb.armed = ARM_SLIDER;
|
|
|
1673 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
76
|
1674 break;
|
|
|
1675 case BUTTON_UP_ARROW:
|
|
|
1676 if (event->xbutton.state & ControlMask)
|
|
|
1677 {
|
|
102
|
1678 w->sb.value = w->sb.minimum;
|
|
76
|
1679 reason = XmCR_TO_TOP;
|
|
|
1680 }
|
|
|
1681 else
|
|
|
1682 {
|
|
102
|
1683 decrement_value (w, w->sb.increment);
|
|
76
|
1684 reason = XmCR_DECREMENT;
|
|
|
1685 }
|
|
102
|
1686 w->sb.armed = ARM_UP;
|
|
76
|
1687 redraw_up_arrow (w, True, False);
|
|
|
1688 break;
|
|
|
1689 case BUTTON_DOWN_ARROW:
|
|
|
1690 if (event->xbutton.state & ControlMask)
|
|
|
1691 {
|
|
102
|
1692 w->sb.value = w->sb.maximum;
|
|
76
|
1693 reason = XmCR_TO_BOTTOM;
|
|
|
1694 }
|
|
|
1695 else
|
|
|
1696 {
|
|
102
|
1697 increment_value (w, w->sb.increment);
|
|
76
|
1698 reason = XmCR_INCREMENT;
|
|
|
1699 }
|
|
102
|
1700 w->sb.armed = ARM_DOWN;
|
|
76
|
1701 redraw_down_arrow (w, True, False);
|
|
|
1702 break;
|
|
173
|
1703 case BUTTON_NONE:
|
|
|
1704 ; /* Do nothing */
|
|
76
|
1705 }
|
|
0
|
1706
|
|
76
|
1707 verify_values (w);
|
|
10
|
1708
|
|
76
|
1709 if (last_value != w->sb.value)
|
|
|
1710 {
|
|
|
1711 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
102
|
1712 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
183
|
1713
|
|
76
|
1714 call_callbacks (w, reason, w->sb.value, mouse_y, event);
|
|
|
1715
|
|
|
1716 if (w->sb.timerActive)
|
|
|
1717 XtRemoveTimeOut (w->sb.timerId);
|
|
0
|
1718
|
|
76
|
1719 w->sb.timerId =
|
|
|
1720 XtAppAddTimeOut (XtWidgetToApplicationContext ((Widget) w),
|
|
|
1721 (unsigned long) w->sb.initialDelay,
|
|
|
1722 timer, (XtPointer) w);
|
|
|
1723 w->sb.timerActive = True;
|
|
|
1724 }
|
|
0
|
1725
|
|
76
|
1726 CHECK (w);
|
|
0
|
1727 }
|
|
|
1728
|
|
76
|
1729 static void
|
|
173
|
1730 PageDownOrRight (Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
1731 {
|
|
|
1732 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1733 w->sb.forced_scroll = FORCED_SCROLL_DOWNRIGHT;
|
|
|
1734 Select (widget, event, parms, num_parms);
|
|
|
1735 w->sb.forced_scroll = FORCED_SCROLL_NONE;
|
|
|
1736 }
|
|
|
1737
|
|
|
1738 static void
|
|
|
1739 PageUpOrLeft (Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
1740 {
|
|
|
1741 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1742 w->sb.forced_scroll = FORCED_SCROLL_UPLEFT;
|
|
|
1743 Select (widget, event, parms, num_parms);
|
|
|
1744 w->sb.forced_scroll = FORCED_SCROLL_NONE;
|
|
|
1745 }
|
|
|
1746
|
|
|
1747 static void
|
|
76
|
1748 Drag (Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
0
|
1749 {
|
|
76
|
1750 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
70
|
1751
|
|
102
|
1752 if (w->sb.armed == ARM_SLIDER)
|
|
76
|
1753 {
|
|
102
|
1754 int mouse_y = event_y (w, event);
|
|
|
1755 int diff = mouse_y - w->sb.lastY;
|
|
70
|
1756
|
|
102
|
1757 if (diff < -(w->sb.above)) /* up */
|
|
76
|
1758 {
|
|
102
|
1759 mouse_y -= (diff + w->sb.above);
|
|
|
1760 diff = -(w->sb.above);
|
|
76
|
1761 }
|
|
102
|
1762 else if (diff > w->sb.below) /* down */
|
|
76
|
1763 {
|
|
102
|
1764 mouse_y -= (diff - w->sb.below);
|
|
|
1765 diff = w->sb.below;
|
|
76
|
1766 }
|
|
0
|
1767
|
|
102
|
1768 if (diff)
|
|
76
|
1769 {
|
|
102
|
1770 w->sb.above += diff;
|
|
|
1771 w->sb.below -= diff;
|
|
|
1772
|
|
|
1773 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
0
|
1774
|
|
|
1775 w->sb.lastY = mouse_y;
|
|
|
1776
|
|
76
|
1777 w->sb.value = value_from_pixel (w, w->sb.above);
|
|
|
1778 verify_values (w);
|
|
|
1779 CHECK (w);
|
|
0
|
1780
|
|
102
|
1781 call_callbacks (w, XmCR_DRAG, w->sb.value, event_y (w, event), event);
|
|
76
|
1782 }
|
|
|
1783 }
|
|
|
1784 CHECK (w);
|
|
0
|
1785 }
|
|
|
1786
|
|
76
|
1787 static void
|
|
|
1788 Release (Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
0
|
1789 {
|
|
76
|
1790 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
70
|
1791
|
|
76
|
1792 switch (w->sb.armed)
|
|
|
1793 {
|
|
102
|
1794 case ARM_SLIDER:
|
|
76
|
1795 call_callbacks (w, XmCR_VALUE_CHANGED, w->sb.value, event_y (w, event), event);
|
|
|
1796 w->sb.armed = ARM_NONE;
|
|
102
|
1797 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
76
|
1798 break;
|
|
|
1799 case ARM_UP:
|
|
|
1800 redraw_up_arrow (w, False, False);
|
|
|
1801 break;
|
|
|
1802 case ARM_DOWN:
|
|
|
1803 redraw_down_arrow (w, False, False);
|
|
|
1804 break;
|
|
173
|
1805 default:
|
|
|
1806 ; /* Do nothing */
|
|
76
|
1807 }
|
|
0
|
1808
|
|
76
|
1809 XtUngrabKeyboard ((Widget) w, event->xbutton.time);
|
|
0
|
1810
|
|
|
1811 w->sb.armed = ARM_NONE;
|
|
|
1812 }
|
|
|
1813
|
|
76
|
1814 static void
|
|
|
1815 Jump (Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
0
|
1816 {
|
|
76
|
1817 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
102
|
1818 int last_value;
|
|
0
|
1819
|
|
102
|
1820 int mouse_x = event_x (w, event);
|
|
|
1821 int mouse_y = event_y (w, event);
|
|
0
|
1822
|
|
102
|
1823 int scroll_region_y = widget_y (w);
|
|
|
1824 int scroll_region_h = widget_h (w);
|
|
183
|
1825
|
|
102
|
1826 if (w->sb.showArrows)
|
|
|
1827 {
|
|
|
1828 int arrow_height = arrow_h (w);
|
|
|
1829 scroll_region_h -= 2 * arrow_height;
|
|
|
1830 if (!arrow_same_end (w))
|
|
|
1831 scroll_region_y += arrow_height;
|
|
|
1832 }
|
|
0
|
1833
|
|
76
|
1834 XtGrabKeyboard ((Widget) w, False, GrabModeAsync, GrabModeAsync,
|
|
|
1835 event->xbutton.time);
|
|
70
|
1836
|
|
76
|
1837 switch (what_button (w, mouse_x, mouse_y))
|
|
|
1838 {
|
|
|
1839 case BUTTON_TROUGH_ABOVE:
|
|
|
1840 case BUTTON_TROUGH_BELOW:
|
|
102
|
1841 case BUTTON_SLIDER:
|
|
76
|
1842 w->sb.savedValue = w->sb.value;
|
|
70
|
1843
|
|
76
|
1844 last_value = w->sb.value;
|
|
70
|
1845
|
|
102
|
1846 w->sb.above = mouse_y - (w->sb.ss / 2) - scroll_region_y;
|
|
76
|
1847 if (w->sb.above < 0)
|
|
102
|
1848 w->sb.above = 0;
|
|
183
|
1849 else if (w->sb.above + w->sb.ss > scroll_region_h)
|
|
102
|
1850 w->sb.above = scroll_region_h - w->sb.ss;
|
|
|
1851
|
|
|
1852 w->sb.below = scroll_region_h - w->sb.ss - w->sb.above;
|
|
26
|
1853
|
|
102
|
1854 w->sb.armed = ARM_SLIDER;
|
|
|
1855 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
0
|
1856
|
|
102
|
1857 w->sb.value = value_from_pixel (w, w->sb.above);
|
|
|
1858 verify_values (w);
|
|
|
1859 CHECK (w);
|
|
26
|
1860
|
|
102
|
1861 w->sb.lastY = mouse_y;
|
|
|
1862
|
|
|
1863 if (w->sb.value != last_value)
|
|
|
1864 call_callbacks (w, XmCR_DRAG, w->sb.value, mouse_y, event);
|
|
183
|
1865
|
|
76
|
1866 break;
|
|
173
|
1867 default:
|
|
|
1868 ; /* Do nothing */
|
|
76
|
1869 }
|
|
|
1870 CHECK (w);
|
|
0
|
1871 }
|
|
|
1872
|
|
76
|
1873 static void
|
|
|
1874 Abort (Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
0
|
1875 {
|
|
76
|
1876 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
0
|
1877
|
|
76
|
1878 if (w->sb.armed != ARM_NONE)
|
|
|
1879 {
|
|
|
1880 if (w->sb.value != w->sb.savedValue)
|
|
|
1881 {
|
|
0
|
1882 w->sb.value = w->sb.savedValue;
|
|
|
1883
|
|
76
|
1884 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
102
|
1885 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below);
|
|
0
|
1886
|
|
76
|
1887 call_callbacks (w, XmCR_VALUE_CHANGED, w->sb.value,
|
|
|
1888 event_y (w, event), event);
|
|
|
1889 }
|
|
|
1890
|
|
|
1891 switch (w->sb.armed)
|
|
|
1892 {
|
|
|
1893 case ARM_UP: redraw_up_arrow (w, False, False); break;
|
|
|
1894 case ARM_DOWN: redraw_down_arrow (w, False, False); break;
|
|
173
|
1895 default: ; /* Do nothing */
|
|
76
|
1896 }
|
|
0
|
1897
|
|
|
1898 w->sb.armed = ARM_NONE;
|
|
|
1899
|
|
76
|
1900 XtUngrabKeyboard ((Widget) w, event->xbutton.time);
|
|
|
1901 }
|
|
0
|
1902 }
|
