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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
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4 This file is part of the Lucid Widget Library.
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5
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6 The Lucid Widget Library is free software; you can redistribute it and/or
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7 modify it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 The Lucid Widget Library is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA. */
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20
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21 /* Created by Douglas Keller <dkeller@vnet.ibm.com> */
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22
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23 #ifndef _XlwScrollBarP_h
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24 #define _XlwScrollBarP_h
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25
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26
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27 /*
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28 ** Widget class
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29 */
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30 typedef struct
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31 {
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32 int dummy_field; /* keep compiler happy */
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33 } XlwScrollBarClassPart;
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34
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35 typedef struct _XlwScrollbarClassRec
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36 {
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37 CoreClassPart core_class;
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38 XlwScrollBarClassPart scrollbar_class;
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39 } XlwScrollBarClassRec;
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40
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41 enum XlwScrollbarArm
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42 {
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43 ARM_NONE,
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44 ARM_SLIDER,
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45 ARM_UP,
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46 ARM_DOWN,
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47 ARM_PAGEUP,
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48 ARM_PAGEDOWN
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49 };
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50
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51 enum XlwScrollbarForcedScroll
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52 {
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53 FORCED_SCROLL_NONE,
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54 FORCED_SCROLL_DOWNRIGHT,
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55 FORCED_SCROLL_UPLEFT
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56 };
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57
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58 /*
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59 ** Widget instance
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60 */
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61 typedef struct
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62 {
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63 /* resources */
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64 XtCallbackList valueChangedCBL;
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65 XtCallbackList incrementCBL;
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66 XtCallbackList decrementCBL;
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67 XtCallbackList pageIncrementCBL;
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68 XtCallbackList pageDecrementCBL;
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69 XtCallbackList toTopCBL;
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70 XtCallbackList toBottomCBL;
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71 XtCallbackList dragCBL;
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72
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73 Pixel foreground;
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74
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75 Pixel topShadowColor;
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76 Pixel bottomShadowColor;
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77
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78 Pixel troughColor;
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79
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80 Pixel armColor;
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81 Pixel armTopShadowColor;
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82 Pixel armBottomShadowColor;
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83
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84 Pixmap topShadowPixmap;
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85 Pixmap bottomShadowPixmap;
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86
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87 int shadowThickness;
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88
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89 Boolean showArrows;
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90
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91 int minimum;
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92 int maximum;
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93 int sliderSize;
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94 int value;
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95 int pageIncrement;
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96 int increment;
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97
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98 int initialDelay;
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99 int repeatDelay;
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100
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101 unsigned char orientation;
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102
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103 char *sliderStyle;
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104 char *knobStyle;
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105 char *arrowPosition;
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106
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107 /* private */
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108 Pixmap grayPixmap;
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109
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110 GC backgroundGC;
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111 GC topShadowGC;
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112 GC bottomShadowGC;
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113
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114 int above, ss, below;
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115 int lastY;
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116
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117 enum XlwScrollbarArm armed;
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118
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119 enum XlwScrollbarForcedScroll forced_scroll;
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120
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121 int savedValue;
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122
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123 Boolean fullRedrawNext;
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124
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125 Boolean timerActive;
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126 XtIntervalId timerId;
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127
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128 } XlwScrollBarPart;
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129
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130 typedef struct _XlwScrollBarRec
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131 {
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132 CorePart core;
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133 XlwScrollBarPart sb;
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134 } XlwScrollBarRec;
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135
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136 #endif /* _XlwScrollBarP_h */
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