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7
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1 /* vi:set ts=8 sts=4 sw=4: */
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2 /*
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3 * MODIFIED ATHENA SCROLLBAR (USING ARROWHEADS AT ENDS OF TRAVEL)
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4 * Modifications Copyright 1992 by Mitch Trachtenberg
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5 * Rights, permissions, and disclaimer of warranty are as in the DEC and MIT
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6 * notice below.
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7 * $XConsortium: Scrollbar.c,v 1.72 94/04/17 20:12:40 kaleb Exp $
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8 */
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9
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10 /*
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11 * Modified for Vim by Bill Foster and Bram Moolenaar
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12 */
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13
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14 /*
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15
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16 Copyright (c) 1987, 1988, 1994 X Consortium
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17
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18 Permission is hereby granted, free of charge, to any person obtaining a copy
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19 of this software and associated documentation files (the "Software"), to deal
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20 in the Software without restriction, including without limitation the rights
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21 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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22 copies of the Software, and to permit persons to whom the Software is
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23 furnished to do so, subject to the following conditions:
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24
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25 The above copyright notice and this permission notice shall be included in all
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26 copies or substantial portions of the Software.
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27
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28 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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29 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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30 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE X
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31 CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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32 ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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33 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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34
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35 Except as contained in this notice, the name of the X Consortium shall not be
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36 used in advertising or otherwise to promote the sale, use or other dealings in
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37 this Software without prior written authorization from the X Consortium.
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38
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39 Copyright 1987, 1988 by Digital Equipment Corporation, Maynard, Massachusetts.
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40
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41 All Rights Reserved
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42
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43 Permission to use, copy, modify, and distribute this software and its
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44 documentation for any purpose and without fee is hereby granted, provided that
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45 the above copyright notice appear in all copies and that both that copyright
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46 notice and this permission notice appear in supporting documentation, and that
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47 the name of Digital not be used in advertising or publicity pertaining to
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48 distribution of the software without specific, written prior permission.
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49
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50 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
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51 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL
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52 BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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53 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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54 OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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55 CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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56
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57 */
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58
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59 /* ScrollBar.c */
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60 /* created by weissman, Mon Jul 7 13:20:03 1986 */
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61 /* converted by swick, Thu Aug 27 1987 */
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62
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63 #include <X11/IntrinsicP.h>
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64 #include <X11/StringDefs.h>
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65
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66 #include <X11/Xaw/XawInit.h>
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67 #include "vim.h"
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68 #include "gui_at_sb.h"
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69
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70 #include <X11/Xmu/Drawing.h>
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71
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72 /* Private definitions. */
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73
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74 static char defaultTranslations[] =
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75 "<Btn1Down>: NotifyScroll()\n\
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76 <Btn2Down>: MoveThumb() NotifyThumb()\n\
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77 <Btn3Down>: NotifyScroll()\n\
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78 <Btn4Down>: ScrollOneLineUp()\n\
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79 Shift<Btn4Down>: ScrollPageUp()\n\
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80 <Btn5Down>: ScrollOneLineDown()\n\
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81 Shift<Btn5Down>: ScrollPageDown()\n\
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82 <Btn1Motion>: HandleThumb()\n\
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83 <Btn3Motion>: HandleThumb()\n\
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84 <Btn2Motion>: MoveThumb() NotifyThumb()\n\
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85 <BtnUp>: EndScroll()";
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86
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87 static float floatZero = 0.0;
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88
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89 #define Offset(field) XtOffsetOf(ScrollbarRec, field)
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90
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91 static XtResource resources[] =
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92 {
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93 {XtNlength, XtCLength, XtRDimension, sizeof(Dimension),
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94 Offset(scrollbar.length), XtRImmediate, (XtPointer) 1},
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95 {XtNthickness, XtCThickness, XtRDimension, sizeof(Dimension),
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96 Offset(scrollbar.thickness), XtRImmediate, (XtPointer) 14},
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97 {XtNorientation, XtCOrientation, XtROrientation, sizeof(XtOrientation),
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98 Offset(scrollbar.orientation), XtRImmediate, (XtPointer) XtorientVertical},
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99 {XtNscrollProc, XtCCallback, XtRCallback, sizeof(XtPointer),
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100 Offset(scrollbar.scrollProc), XtRCallback, NULL},
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101 {XtNthumbProc, XtCCallback, XtRCallback, sizeof(XtPointer),
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102 Offset(scrollbar.thumbProc), XtRCallback, NULL},
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103 {XtNjumpProc, XtCCallback, XtRCallback, sizeof(XtPointer),
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104 Offset(scrollbar.jumpProc), XtRCallback, NULL},
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105 {XtNthumb, XtCThumb, XtRBitmap, sizeof(Pixmap),
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106 Offset(scrollbar.thumb), XtRImmediate, (XtPointer) XtUnspecifiedPixmap},
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107 {XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel),
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108 Offset(scrollbar.foreground), XtRString, XtDefaultForeground},
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109 {XtNshown, XtCShown, XtRFloat, sizeof(float),
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110 Offset(scrollbar.shown), XtRFloat, (XtPointer)&floatZero},
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111 {XtNtopOfThumb, XtCTopOfThumb, XtRFloat, sizeof(float),
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112 Offset(scrollbar.top), XtRFloat, (XtPointer)&floatZero},
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113 {XtNmaxOfThumb, XtCMaxOfThumb, XtRFloat, sizeof(float),
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114 Offset(scrollbar.max), XtRFloat, (XtPointer)&floatZero},
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115 {XtNminimumThumb, XtCMinimumThumb, XtRDimension, sizeof(Dimension),
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116 Offset(scrollbar.min_thumb), XtRImmediate, (XtPointer) 7},
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117 {XtNshadowWidth, XtCShadowWidth, XtRDimension, sizeof(Dimension),
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118 Offset(scrollbar.shadow_width), XtRImmediate, (XtPointer) 1},
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119 {XtNtopShadowPixel, XtCTopShadowPixel, XtRPixel, sizeof(Pixel),
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120 Offset(scrollbar.top_shadow_pixel), XtRString, XtDefaultBackground},
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121 {XtNbottomShadowPixel, XtCBottomShadowPixel, XtRPixel, sizeof(Pixel),
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122 Offset(scrollbar.bot_shadow_pixel), XtRString, XtDefaultForeground},
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123 {XtNlimitThumb, XtCLimitThumb, XtRBool, sizeof(Bool),
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124 Offset(scrollbar.limit_thumb), XtRImmediate, (XtPointer)0}
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125 };
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126 #undef Offset
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127
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128 static void ClassInitialize __ARGS((void));
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129 static void Initialize __ARGS((Widget, Widget, ArgList, Cardinal *));
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130 static void Destroy __ARGS((Widget));
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131 static void Realize __ARGS((Widget, Mask *, XSetWindowAttributes *));
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132 static void Resize __ARGS((Widget));
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133 static void Redisplay __ARGS((Widget, XEvent *, Region));
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134 static Boolean SetValues __ARGS((Widget, Widget, Widget, ArgList, Cardinal *));
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135
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136 static void HandleThumb __ARGS((Widget, XEvent *, String *, Cardinal *));
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137 static void MoveThumb __ARGS((Widget, XEvent *, String *, Cardinal *));
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138 static void NotifyThumb __ARGS((Widget, XEvent *, String *, Cardinal *));
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139 static void NotifyScroll __ARGS((Widget, XEvent *, String *, Cardinal *));
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140 static void EndScroll __ARGS((Widget, XEvent *, String *, Cardinal *));
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141 static void ScrollOneLineUp __ARGS((Widget, XEvent *, String *, Cardinal *));
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142 static void ScrollOneLineDown __ARGS((Widget, XEvent *, String *, Cardinal *));
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143 static void ScrollPageUp __ARGS((Widget, XEvent *, String *, Cardinal *));
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144 static void ScrollPageDown __ARGS((Widget, XEvent *, String *, Cardinal *));
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145 static void ScrollSome __ARGS((Widget w, XEvent *event, int call_data));
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146 static void _Xaw3dDrawShadows __ARGS((Widget, XEvent *, Region, int));
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147 static void AllocTopShadowGC __ARGS((Widget));
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148 static void AllocBotShadowGC __ARGS((Widget));
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149
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150 static XtActionsRec actions[] =
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151 {
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152 {"HandleThumb", HandleThumb},
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153 {"MoveThumb", MoveThumb},
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154 {"NotifyThumb", NotifyThumb},
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155 {"NotifyScroll", NotifyScroll},
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156 {"EndScroll", EndScroll},
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157 {"ScrollOneLineUp", ScrollOneLineUp},
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158 {"ScrollOneLineDown", ScrollOneLineDown},
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159 {"ScrollPageUp", ScrollPageUp},
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160 {"ScrollPageDown", ScrollPageDown}
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161 };
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162
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163
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164 ScrollbarClassRec vim_scrollbarClassRec =
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165 {
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166 { /* core fields */
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167 /* superclass */ (WidgetClass) &simpleClassRec,
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168 /* class_name */ "Scrollbar",
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169 /* size */ sizeof(ScrollbarRec),
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170 /* class_initialize */ ClassInitialize,
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171 /* class_part_init */ NULL,
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172 /* class_inited */ FALSE,
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173 /* initialize */ Initialize,
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174 /* initialize_hook */ NULL,
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175 /* realize */ Realize,
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176 /* actions */ actions,
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177 /* num_actions */ XtNumber(actions),
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178 /* resources */ resources,
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179 /* num_resources */ XtNumber(resources),
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180 /* xrm_class */ NULLQUARK,
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181 /* compress_motion */ TRUE,
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182 /* compress_exposure*/ TRUE,
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183 /* compress_enterleave*/ TRUE,
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184 /* visible_interest */ FALSE,
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185 /* destroy */ Destroy,
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186 /* resize */ Resize,
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187 /* expose */ Redisplay,
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188 /* set_values */ SetValues,
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189 /* set_values_hook */ NULL,
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190 /* set_values_almost */ XtInheritSetValuesAlmost,
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191 /* get_values_hook */ NULL,
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192 /* accept_focus */ NULL,
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193 /* version */ XtVersion,
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194 /* callback_private */ NULL,
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195 /* tm_table */ defaultTranslations,
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196 /* query_geometry */ XtInheritQueryGeometry,
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197 /* display_accelerator*/ XtInheritDisplayAccelerator,
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198 /* extension */ NULL
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199 },
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200 { /* simple fields */
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1887
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201 /* change_sensitive */ XtInheritChangeSensitive,
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202 #ifndef OLDXAW
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203 /* extension */ NULL
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204 #endif
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7
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205 },
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206 { /* scrollbar fields */
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1887
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207 /* empty */ 0
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7
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208 }
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209 };
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210
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211 WidgetClass vim_scrollbarWidgetClass = (WidgetClass)&vim_scrollbarClassRec;
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212
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213 #define NoButton -1
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214 #define PICKLENGTH(widget, x, y) \
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215 ((widget->scrollbar.orientation == XtorientHorizontal) ? (x) : (y))
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216 #define AT_MIN(x,y) ((x) < (y) ? (x) : (y))
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217 #define AT_MAX(x,y) ((x) > (y) ? (x) : (y))
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218
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219 #define LINE_DELAY 300
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220 #define PAGE_DELAY 300
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221 #define LINE_REPEAT 50
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222 #define PAGE_REPEAT 250
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223
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224 static void
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225 ClassInitialize()
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226 {
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227 XawInitializeWidgetSet();
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228 XtAddConverter( XtRString, XtROrientation, XmuCvtStringToOrientation,
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229 (XtConvertArgList)NULL, (Cardinal)0 );
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230 }
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231
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232 #define MARGIN(sbw) (sbw)->scrollbar.thickness + (sbw)->scrollbar.shadow_width
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233
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234 static void
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235 FillArea(sbw, top, bottom, fill, draw_shadow)
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236 ScrollbarWidget sbw;
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237 Position top, bottom;
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238 int fill;
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239 int draw_shadow;
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240 {
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241 int tlen = bottom - top; /* length of thumb in pixels */
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242 int sw, margin, floor;
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243 int lx, ly, lw, lh;
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244
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245 if (bottom <= 0 || bottom <= top)
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246 return;
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1887
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247 sw = sbw->scrollbar.shadow_width;
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248 if (sw < 0)
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249 sw = 0;
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250 margin = MARGIN (sbw);
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251 floor = sbw->scrollbar.length - margin + 2;
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252
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253 if (sbw->scrollbar.orientation == XtorientHorizontal)
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254 {
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255 lx = ((top < margin) ? margin : top);
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256 ly = sw;
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257 lw = (((top + tlen) > floor) ? floor - top : tlen);
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258 lh = sbw->core.height - 2 * sw;
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259 }
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260 else
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261 {
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262 lx = sw;
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263 ly = ((top < margin) ? margin : top);
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264 lw = sbw->core.width - 2 * sw;
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265 lh = (((top + tlen) > floor) ? floor - top : tlen);
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266 }
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267 if (lh <= 0 || lw <= 0)
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268 return;
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269
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270 if (draw_shadow)
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271 {
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272 if (!(sbw->scrollbar.orientation == XtorientHorizontal))
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273 {
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274 /* Top border */
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275 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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276 sbw->scrollbar.top_shadow_GC,
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277 lx, ly, lx + lw - 1, ly);
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278
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279 /* Bottom border */
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280 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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281 sbw->scrollbar.bot_shadow_GC,
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282 lx, ly + lh - 1, lx + lw - 1, ly + lh - 1);
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283 }
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284 else
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285 {
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286 /* Left border */
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287 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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288 sbw->scrollbar.top_shadow_GC,
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289 lx, ly, lx, ly + lh - 1);
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290
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291 /* Right border */
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292 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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293 sbw->scrollbar.bot_shadow_GC,
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294 lx + lw - 1, ly, lx + lw - 1, ly + lh - 1);
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295 }
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296 return;
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297 }
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298
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299 if (fill)
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300 {
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301 XFillRectangle(XtDisplay((Widget) sbw), XtWindow((Widget) sbw),
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302 sbw->scrollbar.gc,
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303 lx, ly, (unsigned int) lw, (unsigned int) lh);
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304
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305 if (!(sbw->scrollbar.orientation == XtorientHorizontal))
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306 {
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307 /* Left border */
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308 XDrawLine(XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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309 sbw->scrollbar.top_shadow_GC,
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310 lx, ly, lx, ly + lh - 1);
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311
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312 /* Right border */
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313 XDrawLine(XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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314 sbw->scrollbar.bot_shadow_GC,
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315 lx + lw - 1, ly, lx + lw - 1, ly + lh - 1);
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316 }
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317 else
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318 {
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319 /* Top border */
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320 XDrawLine(XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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321 sbw->scrollbar.top_shadow_GC,
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322 lx, ly, lx + lw - 1, ly);
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323
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324 /* Bottom border */
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325 XDrawLine(XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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326 sbw->scrollbar.bot_shadow_GC,
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327 lx, ly + lh - 1, lx + lw - 1, ly + lh - 1);
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328 }
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329 }
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330 else
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331 {
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332 XClearArea(XtDisplay((Widget) sbw), XtWindow((Widget) sbw),
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333 lx, ly, (unsigned int) lw, (unsigned int) lh, FALSE);
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334 }
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335 }
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336
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337 /* Paint the thumb in the area specified by sbw->top and
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338 sbw->shown. The old area is erased. The painting and
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339 erasing is done cleverly so that no flickering will occur.
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340 */
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341
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342 static void
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343 PaintThumb(sbw)
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344 ScrollbarWidget sbw;
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345 {
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346 Position oldtop, oldbot, newtop, newbot;
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347 Dimension margin, tzl;
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348
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349 margin = MARGIN (sbw);
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350 tzl = sbw->scrollbar.length - 2 * margin;
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351 newtop = margin + (int)(tzl * sbw->scrollbar.top);
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352 newbot = newtop + (int)(tzl * sbw->scrollbar.shown) + 1;
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353 if (newbot < newtop + (int)sbw->scrollbar.min_thumb)
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354 newbot = newtop + sbw->scrollbar.min_thumb;
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355
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356 oldtop = sbw->scrollbar.topLoc;
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357 oldbot = oldtop + sbw->scrollbar.shownLength;
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358 sbw->scrollbar.topLoc = newtop;
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359 sbw->scrollbar.shownLength = newbot - newtop;
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360 if (XtIsRealized ((Widget) sbw))
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361 {
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362 if (newtop < oldtop)
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363 FillArea(sbw, newtop, AT_MIN(newbot, oldtop+1),1,0);
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364 if (newtop > oldtop)
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365 FillArea(sbw, oldtop, AT_MIN(newtop, oldbot ),0,0);
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366 if (newbot < oldbot)
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367 FillArea(sbw, AT_MAX(newbot, oldtop), oldbot, 0,0);
|
|
|
368 if (newbot > oldbot)
|
|
|
369 FillArea(sbw, AT_MAX(newtop, oldbot-1), newbot, 1,0);
|
|
|
370
|
|
|
371 /* Only draw the missing shadows */
|
|
|
372 FillArea(sbw, newtop, newbot, 0, 1);
|
|
|
373 }
|
|
|
374 }
|
|
|
375
|
|
|
376 static void
|
|
|
377 PaintArrows(sbw)
|
|
|
378 ScrollbarWidget sbw;
|
|
|
379 {
|
|
|
380 XPoint point[6];
|
|
|
381 Dimension thickness = sbw->scrollbar.thickness - 1;
|
|
|
382 Dimension size;
|
|
|
383 Dimension off;
|
|
|
384
|
|
|
385 if (XtIsRealized((Widget) sbw))
|
|
|
386 {
|
|
|
387 if ((int)thickness * 2 > (int)sbw->scrollbar.length)
|
|
|
388 {
|
|
|
389 size = sbw->scrollbar.length / 2;
|
|
|
390 off = (int)(thickness - size) / 2;
|
|
|
391 }
|
|
|
392 else
|
|
|
393 {
|
|
|
394 size = thickness;
|
|
|
395 off = 0;
|
|
|
396 }
|
|
|
397 point[0].x = off + sbw->scrollbar.shadow_width;
|
|
|
398 point[0].y = size;
|
|
|
399 point[1].x = thickness - off - sbw->scrollbar.shadow_width;
|
|
|
400 point[1].y = size;
|
|
|
401 point[2].x = thickness / 2;
|
|
|
402 point[2].y = sbw->scrollbar.shadow_width;
|
|
|
403
|
|
|
404 point[3].x = off + sbw->scrollbar.shadow_width;
|
|
|
405 point[3].y = sbw->scrollbar.length - size;
|
|
|
406 point[4].x = thickness - off - sbw->scrollbar.shadow_width;
|
|
|
407 point[4].y = sbw->scrollbar.length - size;
|
|
|
408 point[5].x = thickness / 2;
|
|
|
409 point[5].y = sbw->scrollbar.length - sbw->scrollbar.shadow_width - 1;
|
|
|
410
|
|
|
411 /* horizontal arrows require that x and y coordinates be swapped */
|
|
|
412 if (sbw->scrollbar.orientation == XtorientHorizontal)
|
|
|
413 {
|
|
|
414 int n;
|
|
|
415 int swap;
|
|
|
416 for (n = 0; n < 6; n++)
|
|
|
417 {
|
|
|
418 swap = point[n].x;
|
|
|
419 point[n].x = point[n].y;
|
|
|
420 point[n].y = swap;
|
|
|
421 }
|
|
|
422 }
|
|
|
423 /* draw the up/left arrow */
|
|
|
424 XFillPolygon (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
425 sbw->scrollbar.gc,
|
|
|
426 point, 3,
|
|
|
427 Convex, CoordModeOrigin);
|
|
|
428 XDrawLines (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
429 sbw->scrollbar.bot_shadow_GC,
|
|
|
430 point, 3,
|
|
|
431 CoordModeOrigin);
|
|
|
432 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
433 sbw->scrollbar.top_shadow_GC,
|
|
|
434 point[0].x, point[0].y,
|
|
|
435 point[2].x, point[2].y);
|
|
|
436 /* draw the down/right arrow */
|
|
|
437 XFillPolygon (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
438 sbw->scrollbar.gc,
|
|
|
439 point+3, 3,
|
|
|
440 Convex, CoordModeOrigin);
|
|
|
441 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
442 sbw->scrollbar.top_shadow_GC,
|
|
|
443 point[3].x, point[3].y,
|
|
|
444 point[4].x, point[4].y);
|
|
|
445 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
446 sbw->scrollbar.top_shadow_GC,
|
|
|
447 point[3].x, point[3].y,
|
|
|
448 point[5].x, point[5].y);
|
|
|
449 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
450 sbw->scrollbar.bot_shadow_GC,
|
|
|
451 point[4].x, point[4].y,
|
|
|
452 point[5].x, point[5].y);
|
|
|
453 }
|
|
|
454 }
|
|
|
455
|
|
|
456 static void
|
|
|
457 Destroy(w)
|
|
|
458 Widget w;
|
|
|
459 {
|
|
|
460 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
461 if (sbw->scrollbar.timer_id != (XtIntervalId) 0)
|
|
|
462 XtRemoveTimeOut (sbw->scrollbar.timer_id);
|
|
|
463 XtReleaseGC(w, sbw->scrollbar.gc);
|
|
|
464 XtReleaseGC(w, sbw->scrollbar.top_shadow_GC);
|
|
|
465 XtReleaseGC(w, sbw->scrollbar.bot_shadow_GC);
|
|
|
466 }
|
|
|
467
|
|
|
468 static void
|
|
|
469 CreateGC(w)
|
|
|
470 Widget w;
|
|
|
471 {
|
|
|
472 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
473 XGCValues gcValues;
|
|
|
474 XtGCMask mask;
|
|
|
475 unsigned int depth = 1;
|
|
|
476
|
|
|
477 if (sbw->scrollbar.thumb == XtUnspecifiedPixmap)
|
|
|
478 {
|
|
|
479 sbw->scrollbar.thumb = XmuCreateStippledPixmap (XtScreen(w),
|
|
|
480 (Pixel) 1, (Pixel) 0, depth);
|
|
|
481 }
|
|
|
482 else if (sbw->scrollbar.thumb != None)
|
|
|
483 {
|
|
|
484 Window root;
|
|
|
485 int x, y;
|
|
|
486 unsigned int width, height, bw;
|
|
|
487
|
|
|
488 if (XGetGeometry (XtDisplay(w), sbw->scrollbar.thumb, &root, &x, &y,
|
|
|
489 &width, &height, &bw, &depth) == 0)
|
|
|
490 EMSG(_("Scrollbar Widget: Could not get geometry of thumb pixmap."));
|
|
|
491 }
|
|
|
492
|
|
|
493 gcValues.foreground = sbw->scrollbar.foreground;
|
|
|
494 gcValues.background = sbw->core.background_pixel;
|
|
|
495 mask = GCForeground | GCBackground;
|
|
|
496
|
|
|
497 if (sbw->scrollbar.thumb != None)
|
|
|
498 {
|
|
|
499 gcValues.fill_style = FillSolid;
|
|
|
500 mask |= GCFillStyle;
|
|
|
501 }
|
|
|
502 /* the creation should be non-caching, because */
|
|
|
503 /* we now set and clear clip masks on the gc returned */
|
|
|
504 sbw->scrollbar.gc = XtGetGC (w, mask, &gcValues);
|
|
|
505 }
|
|
|
506
|
|
|
507 static void
|
|
|
508 SetDimensions(sbw)
|
|
|
509 ScrollbarWidget sbw;
|
|
|
510 {
|
|
|
511 if (sbw->scrollbar.orientation == XtorientVertical)
|
|
|
512 {
|
|
|
513 sbw->scrollbar.length = sbw->core.height;
|
|
|
514 sbw->scrollbar.thickness = sbw->core.width;
|
|
|
515 }
|
|
|
516 else
|
|
|
517 {
|
|
|
518 sbw->scrollbar.length = sbw->core.width;
|
|
|
519 sbw->scrollbar.thickness = sbw->core.height;
|
|
|
520 }
|
|
|
521 }
|
|
|
522
|
|
|
523 static void
|
|
|
524 Initialize(request, new, args, num_args)
|
|
1887
|
525 Widget request UNUSED; /* what the client asked for */
|
|
7
|
526 Widget new; /* what we're going to give him */
|
|
1887
|
527 ArgList args UNUSED;
|
|
|
528 Cardinal *num_args UNUSED;
|
|
7
|
529 {
|
|
|
530 ScrollbarWidget sbw = (ScrollbarWidget) new;
|
|
|
531
|
|
|
532 CreateGC(new);
|
|
|
533 AllocTopShadowGC(new);
|
|
|
534 AllocBotShadowGC(new);
|
|
|
535
|
|
|
536 if (sbw->core.width == 0)
|
|
|
537 sbw->core.width = (sbw->scrollbar.orientation == XtorientVertical)
|
|
|
538 ? sbw->scrollbar.thickness : sbw->scrollbar.length;
|
|
|
539
|
|
|
540 if (sbw->core.height == 0)
|
|
|
541 sbw->core.height = (sbw->scrollbar.orientation == XtorientHorizontal)
|
|
|
542 ? sbw->scrollbar.thickness : sbw->scrollbar.length;
|
|
|
543
|
|
|
544 SetDimensions(sbw);
|
|
|
545 sbw->scrollbar.scroll_mode = SMODE_NONE;
|
|
|
546 sbw->scrollbar.timer_id = (XtIntervalId)0;
|
|
|
547 sbw->scrollbar.topLoc = 0;
|
|
|
548 sbw->scrollbar.shownLength = sbw->scrollbar.min_thumb;
|
|
|
549 }
|
|
|
550
|
|
|
551 static void
|
|
|
552 Realize(w, valueMask, attributes)
|
|
|
553 Widget w;
|
|
|
554 Mask *valueMask;
|
|
|
555 XSetWindowAttributes *attributes;
|
|
|
556 {
|
|
|
557 /* The Simple widget actually stuffs the value in the valuemask. */
|
|
|
558 (*vim_scrollbarWidgetClass->core_class.superclass->core_class.realize)
|
|
|
559 (w, valueMask, attributes);
|
|
|
560 }
|
|
|
561
|
|
|
562 static Boolean
|
|
|
563 SetValues(current, request, desired, args, num_args)
|
|
1887
|
564 Widget current; /* what I am */
|
|
|
565 Widget request UNUSED; /* what he wants me to be */
|
|
|
566 Widget desired; /* what I will become */
|
|
|
567 ArgList args UNUSED;
|
|
|
568 Cardinal *num_args UNUSED;
|
|
7
|
569 {
|
|
|
570 ScrollbarWidget sbw = (ScrollbarWidget) current;
|
|
|
571 ScrollbarWidget dsbw = (ScrollbarWidget) desired;
|
|
|
572 Boolean redraw = FALSE;
|
|
|
573
|
|
|
574 /*
|
|
|
575 * If these values are outside the acceptable range ignore them...
|
|
|
576 */
|
|
|
577 if (dsbw->scrollbar.top < 0.0 || dsbw->scrollbar.top > 1.0)
|
|
|
578 dsbw->scrollbar.top = sbw->scrollbar.top;
|
|
|
579
|
|
|
580 if (dsbw->scrollbar.shown < 0.0 || dsbw->scrollbar.shown > 1.0)
|
|
|
581 dsbw->scrollbar.shown = sbw->scrollbar.shown;
|
|
|
582
|
|
|
583 /*
|
|
|
584 * Change colors and stuff...
|
|
|
585 */
|
|
|
586 if (XtIsRealized(desired))
|
|
|
587 {
|
|
|
588 if (sbw->scrollbar.foreground != dsbw->scrollbar.foreground ||
|
|
|
589 sbw->core.background_pixel != dsbw->core.background_pixel ||
|
|
|
590 sbw->scrollbar.thumb != dsbw->scrollbar.thumb)
|
|
|
591 {
|
|
|
592 XtReleaseGC(desired, sbw->scrollbar.gc);
|
|
|
593 CreateGC (desired);
|
|
|
594 redraw = TRUE;
|
|
|
595 }
|
|
|
596 if (sbw->scrollbar.top != dsbw->scrollbar.top ||
|
|
|
597 sbw->scrollbar.shown != dsbw->scrollbar.shown)
|
|
|
598 redraw = TRUE;
|
|
|
599 }
|
|
|
600 return redraw;
|
|
|
601 }
|
|
|
602
|
|
|
603 static void
|
|
|
604 Resize(w)
|
|
|
605 Widget w;
|
|
|
606 {
|
|
|
607 /* ForgetGravity has taken care of background, but thumb may
|
|
|
608 * have to move as a result of the new size. */
|
|
|
609 SetDimensions ((ScrollbarWidget) w);
|
|
|
610 Redisplay(w, (XEvent*) NULL, (Region)NULL);
|
|
|
611 }
|
|
|
612
|
|
|
613
|
|
|
614 static void
|
|
|
615 Redisplay(w, event, region)
|
|
|
616 Widget w;
|
|
|
617 XEvent *event;
|
|
|
618 Region region;
|
|
|
619 {
|
|
|
620 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
621 int x, y;
|
|
|
622 unsigned int width, height;
|
|
|
623
|
|
|
624 _Xaw3dDrawShadows(w, event, region, FALSE);
|
|
|
625
|
|
|
626 if (sbw->scrollbar.orientation == XtorientHorizontal)
|
|
|
627 {
|
|
|
628 x = sbw->scrollbar.topLoc;
|
|
|
629 y = 1;
|
|
|
630 width = sbw->scrollbar.shownLength;
|
|
|
631 height = sbw->core.height - 2;
|
|
|
632 }
|
|
|
633 else
|
|
|
634 {
|
|
|
635 x = 1;
|
|
|
636 y = sbw->scrollbar.topLoc;
|
|
|
637 width = sbw->core.width - 2;
|
|
|
638 height = sbw->scrollbar.shownLength;
|
|
|
639 }
|
|
|
640 if (region == NULL ||
|
|
|
641 XRectInRegion (region, x, y, width, height) != RectangleOut)
|
|
|
642 {
|
|
|
643 /* Forces entire thumb to be painted. */
|
|
|
644 sbw->scrollbar.topLoc = -(sbw->scrollbar.length + 1);
|
|
|
645 PaintThumb (sbw);
|
|
|
646 }
|
|
|
647 /* we'd like to be region aware here!!!! */
|
|
|
648 PaintArrows(sbw);
|
|
|
649 }
|
|
|
650
|
|
|
651
|
|
|
652 static Boolean
|
|
|
653 CompareEvents(oldEvent, newEvent)
|
|
|
654 XEvent *oldEvent, *newEvent;
|
|
|
655 {
|
|
|
656 #define Check(field) if (newEvent->field != oldEvent->field) return False;
|
|
|
657
|
|
|
658 Check(xany.display);
|
|
|
659 Check(xany.type);
|
|
|
660 Check(xany.window);
|
|
|
661
|
|
|
662 switch (newEvent->type)
|
|
|
663 {
|
|
|
664 case MotionNotify:
|
|
|
665 Check(xmotion.state);
|
|
|
666 break;
|
|
|
667 case ButtonPress:
|
|
|
668 case ButtonRelease:
|
|
|
669 Check(xbutton.state);
|
|
|
670 Check(xbutton.button);
|
|
|
671 break;
|
|
|
672 case KeyPress:
|
|
|
673 case KeyRelease:
|
|
|
674 Check(xkey.state);
|
|
|
675 Check(xkey.keycode);
|
|
|
676 break;
|
|
|
677 case EnterNotify:
|
|
|
678 case LeaveNotify:
|
|
|
679 Check(xcrossing.mode);
|
|
|
680 Check(xcrossing.detail);
|
|
|
681 Check(xcrossing.state);
|
|
|
682 break;
|
|
|
683 }
|
|
|
684 #undef Check
|
|
|
685
|
|
|
686 return True;
|
|
|
687 }
|
|
|
688
|
|
|
689 struct EventData
|
|
|
690 {
|
|
|
691 XEvent *oldEvent;
|
|
|
692 int count;
|
|
|
693 };
|
|
|
694
|
|
|
695 static Bool
|
|
|
696 PeekNotifyEvent(dpy, event, args)
|
|
|
697 Display *dpy;
|
|
|
698 XEvent *event;
|
|
|
699 char *args;
|
|
|
700 {
|
|
|
701 struct EventData *eventData = (struct EventData*)args;
|
|
|
702
|
|
|
703 return ((++eventData->count == QLength(dpy)) /* since PeekIf blocks */
|
|
|
704 || CompareEvents(event, eventData->oldEvent));
|
|
|
705 }
|
|
|
706
|
|
|
707
|
|
|
708 static Boolean
|
|
|
709 LookAhead(w, event)
|
|
|
710 Widget w;
|
|
|
711 XEvent *event;
|
|
|
712 {
|
|
|
713 XEvent newEvent;
|
|
|
714 struct EventData eventData;
|
|
|
715
|
|
|
716 if (QLength (XtDisplay (w)) == 0)
|
|
|
717 return False;
|
|
|
718
|
|
|
719 eventData.count = 0;
|
|
|
720 eventData.oldEvent = event;
|
|
|
721
|
|
|
722 XPeekIfEvent (XtDisplay (w), &newEvent, PeekNotifyEvent, (char*)&eventData);
|
|
|
723
|
|
|
724 return CompareEvents (event, &newEvent);
|
|
|
725 }
|
|
|
726
|
|
|
727
|
|
|
728 static void
|
|
|
729 ExtractPosition(event, x, y, state)
|
|
|
730 XEvent *event;
|
|
|
731 Position *x, *y; /* RETURN */
|
|
|
732 unsigned int *state; /* RETURN */
|
|
|
733 {
|
|
|
734 switch (event->type)
|
|
|
735 {
|
|
|
736 case MotionNotify:
|
|
|
737 *x = event->xmotion.x;
|
|
|
738 *y = event->xmotion.y;
|
|
|
739 if (state != NULL)
|
|
|
740 *state = event->xmotion.state;
|
|
|
741 break;
|
|
|
742 case ButtonPress:
|
|
|
743 case ButtonRelease:
|
|
|
744 *x = event->xbutton.x;
|
|
|
745 *y = event->xbutton.y;
|
|
|
746 if (state != NULL)
|
|
|
747 *state = event->xbutton.state;
|
|
|
748 break;
|
|
|
749 case KeyPress:
|
|
|
750 case KeyRelease:
|
|
|
751 *x = event->xkey.x;
|
|
|
752 *y = event->xkey.y;
|
|
|
753 if (state != NULL)
|
|
|
754 *state = event->xkey.state;
|
|
|
755 break;
|
|
|
756 case EnterNotify:
|
|
|
757 case LeaveNotify:
|
|
|
758 *x = event->xcrossing.x;
|
|
|
759 *y = event->xcrossing.y;
|
|
|
760 if (state != NULL)
|
|
|
761 *state = event->xcrossing.state;
|
|
|
762 break;
|
|
|
763 default:
|
|
|
764 *x = 0; *y = 0;
|
|
|
765 if (state != NULL)
|
|
|
766 *state = 0;
|
|
|
767 }
|
|
|
768 }
|
|
|
769
|
|
|
770 static void
|
|
|
771 HandleThumb(w, event, params, num_params)
|
|
|
772 Widget w;
|
|
|
773 XEvent *event;
|
|
|
774 String *params;
|
|
|
775 Cardinal *num_params;
|
|
|
776 {
|
|
|
777 Position x, y, loc;
|
|
|
778 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
779
|
|
|
780 ExtractPosition(event, &x, &y, (unsigned int *)NULL);
|
|
|
781 loc = PICKLENGTH(sbw, x, y);
|
|
|
782 /* if the motion event puts the pointer in thumb, call Move and Notify */
|
|
|
783 /* also call Move and Notify if we're already in continuous scroll mode */
|
|
|
784 if (sbw->scrollbar.scroll_mode == SMODE_CONT ||
|
|
|
785 (loc >= sbw->scrollbar.topLoc &&
|
|
|
786 loc <= sbw->scrollbar.topLoc + (int)sbw->scrollbar.shownLength))
|
|
|
787 {
|
|
|
788 XtCallActionProc(w, "MoveThumb", event, params, *num_params);
|
|
|
789 XtCallActionProc(w, "NotifyThumb", event, params, *num_params);
|
|
|
790 }
|
|
|
791 }
|
|
|
792
|
|
|
793 static void
|
|
|
794 RepeatNotify(client_data, idp)
|
|
|
795 XtPointer client_data;
|
|
1887
|
796 XtIntervalId *idp UNUSED;
|
|
7
|
797 {
|
|
|
798 ScrollbarWidget sbw = (ScrollbarWidget) client_data;
|
|
|
799 int call_data;
|
|
|
800 char mode = sbw->scrollbar.scroll_mode;
|
|
|
801 unsigned long rep;
|
|
|
802
|
|
|
803 if (mode == SMODE_NONE || mode == SMODE_CONT)
|
|
|
804 {
|
|
|
805 sbw->scrollbar.timer_id = (XtIntervalId)0;
|
|
|
806 return;
|
|
|
807 }
|
|
|
808
|
|
|
809 if (mode == SMODE_LINE_DOWN || mode == SMODE_LINE_UP)
|
|
|
810 {
|
|
|
811 call_data = ONE_LINE_DATA;
|
|
|
812 rep = LINE_REPEAT;
|
|
|
813 }
|
|
|
814 else
|
|
|
815 {
|
|
|
816 call_data = ONE_PAGE_DATA;
|
|
|
817 rep = PAGE_REPEAT;
|
|
|
818 }
|
|
|
819
|
|
|
820 if (mode == SMODE_PAGE_UP || mode == SMODE_LINE_UP)
|
|
|
821 call_data = -call_data;
|
|
|
822
|
|
2255
|
823 XtCallCallbacks((Widget)sbw, XtNscrollProc, (XtPointer)(long_u)call_data);
|
|
7
|
824
|
|
|
825 sbw->scrollbar.timer_id =
|
|
|
826 XtAppAddTimeOut(XtWidgetToApplicationContext((Widget)sbw),
|
|
|
827 rep,
|
|
|
828 RepeatNotify,
|
|
|
829 client_data);
|
|
|
830 }
|
|
|
831
|
|
|
832 /*
|
|
|
833 * Same as above, but for floating numbers.
|
|
|
834 */
|
|
|
835 static float
|
|
|
836 FloatInRange(num, small, big)
|
|
|
837 float num, small, big;
|
|
|
838 {
|
|
|
839 return (num < small) ? small : ((num > big) ? big : num);
|
|
|
840 }
|
|
|
841
|
|
|
842 static void
|
|
|
843 ScrollOneLineUp(w, event, params, num_params)
|
|
|
844 Widget w;
|
|
|
845 XEvent *event;
|
|
1887
|
846 String *params UNUSED;
|
|
|
847 Cardinal *num_params UNUSED;
|
|
7
|
848 {
|
|
|
849 ScrollSome(w, event, -ONE_LINE_DATA);
|
|
|
850 }
|
|
|
851
|
|
|
852 static void
|
|
|
853 ScrollOneLineDown(w, event, params, num_params)
|
|
|
854 Widget w;
|
|
|
855 XEvent *event;
|
|
1887
|
856 String *params UNUSED;
|
|
|
857 Cardinal *num_params UNUSED;
|
|
7
|
858 {
|
|
|
859 ScrollSome(w, event, ONE_LINE_DATA);
|
|
|
860 }
|
|
|
861
|
|
|
862 static void
|
|
|
863 ScrollPageDown(w, event, params, num_params)
|
|
|
864 Widget w;
|
|
|
865 XEvent *event;
|
|
1887
|
866 String *params UNUSED;
|
|
|
867 Cardinal *num_params UNUSED;
|
|
7
|
868 {
|
|
|
869 ScrollSome(w, event, ONE_PAGE_DATA);
|
|
|
870 }
|
|
|
871
|
|
|
872 static void
|
|
|
873 ScrollPageUp(w, event, params, num_params)
|
|
|
874 Widget w;
|
|
|
875 XEvent *event;
|
|
1887
|
876 String *params UNUSED;
|
|
|
877 Cardinal *num_params UNUSED;
|
|
7
|
878 {
|
|
|
879 ScrollSome(w, event, -ONE_PAGE_DATA);
|
|
|
880 }
|
|
|
881
|
|
|
882 static void
|
|
|
883 ScrollSome(w, event, call_data)
|
|
|
884 Widget w;
|
|
|
885 XEvent *event;
|
|
|
886 int call_data;
|
|
|
887 {
|
|
|
888 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
889
|
|
|
890 if (sbw->scrollbar.scroll_mode == SMODE_CONT) /* if scroll continuous */
|
|
|
891 return;
|
|
|
892
|
|
|
893 if (LookAhead(w, event))
|
|
|
894 return;
|
|
|
895
|
|
|
896 sbw->scrollbar.scroll_mode = SMODE_LINE_UP;
|
|
2255
|
897 XtCallCallbacks(w, XtNscrollProc, (XtPointer)(long_u)call_data);
|
|
7
|
898 }
|
|
|
899
|
|
|
900 static void
|
|
|
901 NotifyScroll(w, event, params, num_params)
|
|
|
902 Widget w;
|
|
|
903 XEvent *event;
|
|
1887
|
904 String *params UNUSED;
|
|
|
905 Cardinal *num_params UNUSED;
|
|
7
|
906 {
|
|
|
907 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
908 Position x, y, loc;
|
|
|
909 Dimension arrow_size;
|
|
|
910 unsigned long delay = 0;
|
|
|
911 int call_data = 0;
|
|
|
912 unsigned int state;
|
|
|
913
|
|
|
914 if (sbw->scrollbar.scroll_mode == SMODE_CONT) /* if scroll continuous */
|
|
|
915 return;
|
|
|
916
|
|
|
917 if (LookAhead (w, event))
|
|
|
918 return;
|
|
|
919
|
|
|
920 ExtractPosition(event, &x, &y, &state);
|
|
|
921 loc = PICKLENGTH(sbw, x, y);
|
|
|
922
|
|
|
923 if ((int)sbw->scrollbar.thickness * 2 > (int)sbw->scrollbar.length)
|
|
|
924 arrow_size = sbw->scrollbar.length / 2;
|
|
|
925 else
|
|
|
926 arrow_size = sbw->scrollbar.thickness;
|
|
|
927
|
|
|
928 /*
|
|
|
929 * handle CTRL modifier
|
|
|
930 */
|
|
|
931 if (state & ControlMask)
|
|
|
932 {
|
|
|
933 if (loc > sbw->scrollbar.topLoc + (Position)sbw->scrollbar.shownLength)
|
|
|
934 call_data = END_PAGE_DATA;
|
|
|
935 else
|
|
|
936 call_data = -END_PAGE_DATA;
|
|
|
937 sbw->scrollbar.scroll_mode = SMODE_NONE;
|
|
|
938 }
|
|
|
939 /*
|
|
|
940 * handle first arrow zone
|
|
|
941 */
|
|
|
942 else if (loc < (Position)arrow_size)
|
|
|
943 {
|
|
|
944 call_data = -ONE_LINE_DATA;
|
|
|
945 sbw->scrollbar.scroll_mode = SMODE_LINE_UP;
|
|
|
946 delay = LINE_DELAY;
|
|
|
947 }
|
|
|
948
|
|
|
949 /*
|
|
|
950 * handle last arrow zone
|
|
|
951 */
|
|
|
952 else if (loc > (Position)(sbw->scrollbar.length - arrow_size))
|
|
|
953 {
|
|
|
954 call_data = ONE_LINE_DATA;
|
|
|
955 sbw->scrollbar.scroll_mode = SMODE_LINE_DOWN;
|
|
|
956 delay = LINE_DELAY;
|
|
|
957 }
|
|
|
958
|
|
|
959 /*
|
|
|
960 * handle zone "above" the thumb
|
|
|
961 */
|
|
|
962 else if (loc < sbw->scrollbar.topLoc)
|
|
|
963 {
|
|
|
964 call_data = -ONE_PAGE_DATA;
|
|
|
965 sbw->scrollbar.scroll_mode = SMODE_PAGE_UP;
|
|
|
966 delay = PAGE_DELAY;
|
|
|
967 }
|
|
|
968
|
|
|
969 /*
|
|
|
970 * handle zone "below" the thumb
|
|
|
971 */
|
|
|
972 else if (loc > sbw->scrollbar.topLoc + (Position)sbw->scrollbar.shownLength)
|
|
|
973 {
|
|
|
974 call_data = ONE_PAGE_DATA;
|
|
|
975 sbw->scrollbar.scroll_mode = SMODE_PAGE_DOWN;
|
|
|
976 delay = PAGE_DELAY;
|
|
|
977 }
|
|
|
978
|
|
|
979 if (call_data)
|
|
2255
|
980 XtCallCallbacks(w, XtNscrollProc, (XtPointer)(long_u)call_data);
|
|
7
|
981
|
|
|
982 /* establish autoscroll */
|
|
|
983 if (delay)
|
|
|
984 sbw->scrollbar.timer_id =
|
|
|
985 XtAppAddTimeOut(XtWidgetToApplicationContext(w),
|
|
|
986 delay, RepeatNotify, (XtPointer)w);
|
|
|
987 }
|
|
|
988
|
|
|
989 static void
|
|
|
990 EndScroll(w, event, params, num_params)
|
|
|
991 Widget w;
|
|
1887
|
992 XEvent *event UNUSED;
|
|
|
993 String *params UNUSED;
|
|
|
994 Cardinal *num_params UNUSED;
|
|
7
|
995 {
|
|
|
996 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
997
|
|
|
998 sbw->scrollbar.scroll_mode = SMODE_NONE;
|
|
|
999 /* no need to remove any autoscroll timeout; it will no-op */
|
|
|
1000 /* because the scroll_mode is SMODE_NONE */
|
|
|
1001 /* but be sure to remove timeout in destroy proc */
|
|
|
1002 }
|
|
|
1003
|
|
|
1004 static float
|
|
|
1005 FractionLoc(sbw, x, y)
|
|
|
1006 ScrollbarWidget sbw;
|
|
|
1007 int x, y;
|
|
|
1008 {
|
|
|
1009 int margin;
|
|
|
1010 float height, width;
|
|
|
1011
|
|
|
1012 margin = MARGIN(sbw);
|
|
|
1013 x -= margin;
|
|
|
1014 y -= margin;
|
|
|
1015 height = (float)sbw->core.height - 2 * margin;
|
|
|
1016 width = (float)sbw->core.width - 2 * margin;
|
|
|
1017 return PICKLENGTH(sbw, x / width, y / height);
|
|
|
1018 }
|
|
|
1019
|
|
|
1020 static void
|
|
|
1021 MoveThumb(w, event, params, num_params)
|
|
|
1022 Widget w;
|
|
|
1023 XEvent *event;
|
|
1887
|
1024 String *params UNUSED;
|
|
|
1025 Cardinal *num_params UNUSED;
|
|
7
|
1026 {
|
|
|
1027 ScrollbarWidget sbw = (ScrollbarWidget)w;
|
|
|
1028 Position x, y;
|
|
|
1029 float top;
|
|
|
1030 char old_mode = sbw->scrollbar.scroll_mode;
|
|
|
1031
|
|
|
1032 sbw->scrollbar.scroll_mode = SMODE_CONT; /* indicate continuous scroll */
|
|
|
1033
|
|
|
1034 if (LookAhead(w, event))
|
|
|
1035 return;
|
|
|
1036
|
|
|
1037 if (!event->xmotion.same_screen)
|
|
|
1038 return;
|
|
|
1039
|
|
|
1040 ExtractPosition(event, &x, &y, (unsigned int *)NULL);
|
|
|
1041
|
|
|
1042 top = FractionLoc(sbw, x, y);
|
|
|
1043
|
|
|
1044 if (old_mode != SMODE_CONT) /* start dragging: set offset */
|
|
|
1045 {
|
|
|
1046 if (event->xbutton.button == Button2)
|
|
|
1047 sbw->scrollbar.scroll_off = sbw->scrollbar.shown / 2.;
|
|
|
1048 else
|
|
|
1049 sbw->scrollbar.scroll_off = top - sbw->scrollbar.top;
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 top -= sbw->scrollbar.scroll_off;
|
|
|
1053 if (sbw->scrollbar.limit_thumb)
|
|
|
1054 top = FloatInRange(top, 0.0,
|
|
|
1055 sbw->scrollbar.max - sbw->scrollbar.shown + 0.000001);
|
|
|
1056 else
|
|
|
1057 top = FloatInRange(top, 0.0, sbw->scrollbar.max);
|
|
|
1058
|
|
|
1059 sbw->scrollbar.top = top;
|
|
|
1060 PaintThumb(sbw);
|
|
|
1061 XFlush(XtDisplay(w)); /* re-draw it before Notifying */
|
|
|
1062 }
|
|
|
1063
|
|
|
1064
|
|
|
1065 static void
|
|
|
1066 NotifyThumb(w, event, params, num_params)
|
|
|
1067 Widget w;
|
|
|
1068 XEvent *event;
|
|
1887
|
1069 String *params UNUSED;
|
|
|
1070 Cardinal *num_params UNUSED;
|
|
7
|
1071 {
|
|
|
1072 ScrollbarWidget sbw = (ScrollbarWidget)w;
|
|
1757
|
1073 /* Use a union to avoid a warning for the weird conversion from float to
|
|
|
1074 * XtPointer. Comes from Xaw/Scrollbar.c. */
|
|
|
1075 union {
|
|
|
1076 XtPointer xtp;
|
|
|
1077 float xtf;
|
|
|
1078 } xtpf;
|
|
7
|
1079
|
|
|
1080 if (LookAhead(w, event))
|
|
|
1081 return;
|
|
|
1082
|
|
|
1083 /* thumbProc is not pretty, but is necessary for backwards
|
|
|
1084 compatibility on those architectures for which it work{s,ed};
|
|
|
1085 the intent is to pass a (truncated) float by value. */
|
|
1757
|
1086 xtpf.xtf = sbw->scrollbar.top;
|
|
|
1087 XtCallCallbacks(w, XtNthumbProc, xtpf.xtp);
|
|
7
|
1088 XtCallCallbacks(w, XtNjumpProc, (XtPointer)&sbw->scrollbar.top);
|
|
|
1089 }
|
|
|
1090
|
|
|
1091 static void
|
|
|
1092 AllocTopShadowGC(w)
|
|
|
1093 Widget w;
|
|
|
1094 {
|
|
|
1095 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
1096 XtGCMask valuemask;
|
|
|
1097 XGCValues myXGCV;
|
|
|
1098
|
|
|
1099 valuemask = GCForeground;
|
|
|
1100 myXGCV.foreground = sbw->scrollbar.top_shadow_pixel;
|
|
|
1101 sbw->scrollbar.top_shadow_GC = XtGetGC(w, valuemask, &myXGCV);
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 static void
|
|
|
1105 AllocBotShadowGC(w)
|
|
|
1106 Widget w;
|
|
|
1107 {
|
|
|
1108 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
1109 XtGCMask valuemask;
|
|
|
1110 XGCValues myXGCV;
|
|
|
1111
|
|
|
1112 valuemask = GCForeground;
|
|
|
1113 myXGCV.foreground = sbw->scrollbar.bot_shadow_pixel;
|
|
|
1114 sbw->scrollbar.bot_shadow_GC = XtGetGC(w, valuemask, &myXGCV);
|
|
|
1115 }
|
|
|
1116
|
|
|
1117 static void
|
|
|
1118 _Xaw3dDrawShadows(gw, event, region, out)
|
|
|
1119 Widget gw;
|
|
1887
|
1120 XEvent *event UNUSED;
|
|
7
|
1121 Region region;
|
|
|
1122 int out;
|
|
|
1123 {
|
|
|
1124 XPoint pt[6];
|
|
|
1125 ScrollbarWidget sbw = (ScrollbarWidget) gw;
|
|
|
1126 Dimension s = sbw->scrollbar.shadow_width;
|
|
|
1127 /*
|
|
|
1128 * draw the shadows using the core part width and height,
|
|
|
1129 * and the scrollbar part shadow_width.
|
|
|
1130 *
|
|
|
1131 * no point to do anything if the shadow_width is 0 or the
|
|
|
1132 * widget has not been realized.
|
|
|
1133 */
|
|
|
1134 if (s > 0 && XtIsRealized(gw))
|
|
|
1135 {
|
|
|
1136 Dimension h = sbw->core.height;
|
|
|
1137 Dimension w = sbw->core.width;
|
|
|
1138 Dimension wms = w - s;
|
|
|
1139 Dimension hms = h - s;
|
|
|
1140 Display *dpy = XtDisplay (gw);
|
|
|
1141 Window win = XtWindow (gw);
|
|
|
1142 GC top, bot;
|
|
|
1143
|
|
|
1144 if (out)
|
|
|
1145 {
|
|
|
1146 top = sbw->scrollbar.top_shadow_GC;
|
|
|
1147 bot = sbw->scrollbar.bot_shadow_GC;
|
|
|
1148 }
|
|
|
1149 else
|
|
|
1150 {
|
|
|
1151 top = sbw->scrollbar.bot_shadow_GC;
|
|
|
1152 bot = sbw->scrollbar.top_shadow_GC;
|
|
|
1153 }
|
|
|
1154
|
|
|
1155 /* top-left shadow */
|
|
|
1156 if ((region == NULL) ||
|
|
|
1157 (XRectInRegion (region, 0, 0, w, s) != RectangleOut) ||
|
|
|
1158 (XRectInRegion (region, 0, 0, s, h) != RectangleOut))
|
|
|
1159 {
|
|
|
1160 pt[0].x = 0; pt[0].y = h;
|
|
|
1161 pt[1].x = pt[1].y = 0;
|
|
|
1162 pt[2].x = w; pt[2].y = 0;
|
|
|
1163 pt[3].x = wms; pt[3].y = s;
|
|
|
1164 pt[4].x = pt[4].y = s;
|
|
|
1165 pt[5].x = s; pt[5].y = hms;
|
|
|
1166 XFillPolygon (dpy, win, top, pt, 6, Complex, CoordModeOrigin);
|
|
|
1167 }
|
|
|
1168
|
|
|
1169 /* bottom-right shadow */
|
|
|
1170 if ((region == NULL) ||
|
|
|
1171 (XRectInRegion (region, 0, hms, w, s) != RectangleOut) ||
|
|
|
1172 (XRectInRegion (region, wms, 0, s, h) != RectangleOut))
|
|
|
1173 {
|
|
|
1174 pt[0].x = 0; pt[0].y = h;
|
|
|
1175 pt[1].x = w; pt[1].y = h;
|
|
|
1176 pt[2].x = w; pt[2].y = 0;
|
|
|
1177 pt[3].x = wms; pt[3].y = s;
|
|
|
1178 pt[4].x = wms; pt[4].y = hms;
|
|
|
1179 pt[5].x = s; pt[5].y = hms;
|
|
|
1180 XFillPolygon (dpy, win, bot, pt, 6, Complex, CoordModeOrigin);
|
|
|
1181 }
|
|
|
1182 }
|
|
|
1183 }
|
|
|
1184
|
|
|
1185
|
|
|
1186 /*
|
|
|
1187 * Set the scroll bar to the given location.
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1188 */
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1189 void
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1190 vim_XawScrollbarSetThumb(w, top, shown, max)
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1191 Widget w;
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1192 double top, shown, max;
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1193 {
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1194 ScrollbarWidget sbw = (ScrollbarWidget) w;
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1195
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1196 if (sbw->scrollbar.scroll_mode == SMODE_CONT) /* if still thumbing */
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1197 return;
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1198
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1199 sbw->scrollbar.max = (max > 1.0) ? 1.0 :
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1200 (max >= 0.0) ? max : sbw->scrollbar.max;
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1201
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1202 sbw->scrollbar.top = (top > sbw->scrollbar.max) ? sbw->scrollbar.max :
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1203 (top >= 0.0) ? top : sbw->scrollbar.top;
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1204
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1205 sbw->scrollbar.shown = (shown > 1.0) ? 1.0 :
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1206 (shown >= 0.0) ? shown : sbw->scrollbar.shown;
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1207
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1208 PaintThumb(sbw);
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1209 }
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