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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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201 /* change_sensitive */ XtInheritChangeSensitive
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202 },
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203 { /* scrollbar fields */
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204 /* ignore */ 0
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205 }
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206 };
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207
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208 WidgetClass vim_scrollbarWidgetClass = (WidgetClass)&vim_scrollbarClassRec;
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209
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210 #define NoButton -1
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211 #define PICKLENGTH(widget, x, y) \
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212 ((widget->scrollbar.orientation == XtorientHorizontal) ? (x) : (y))
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213 #define AT_MIN(x,y) ((x) < (y) ? (x) : (y))
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214 #define AT_MAX(x,y) ((x) > (y) ? (x) : (y))
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215
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216 #define LINE_DELAY 300
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217 #define PAGE_DELAY 300
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218 #define LINE_REPEAT 50
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219 #define PAGE_REPEAT 250
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220
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221 static void
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222 ClassInitialize()
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223 {
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224 XawInitializeWidgetSet();
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225 XtAddConverter( XtRString, XtROrientation, XmuCvtStringToOrientation,
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226 (XtConvertArgList)NULL, (Cardinal)0 );
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227 }
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228
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229 #define MARGIN(sbw) (sbw)->scrollbar.thickness + (sbw)->scrollbar.shadow_width
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230
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231 static void
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232 FillArea(sbw, top, bottom, fill, draw_shadow)
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233 ScrollbarWidget sbw;
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234 Position top, bottom;
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235 int fill;
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236 int draw_shadow;
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237 {
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238 int tlen = bottom - top; /* length of thumb in pixels */
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239 int sw, margin, floor;
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240 int lx, ly, lw, lh;
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241
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242 if (bottom <= 0 || bottom <= top)
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243 return;
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244 if ((sw = sbw->scrollbar.shadow_width) < 0)
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245 sw = 0;
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246 margin = MARGIN (sbw);
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247 floor = sbw->scrollbar.length - margin + 2;
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248
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249 if (sbw->scrollbar.orientation == XtorientHorizontal)
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250 {
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251 lx = ((top < margin) ? margin : top);
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252 ly = sw;
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253 lw = (((top + tlen) > floor) ? floor - top : tlen);
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254 lh = sbw->core.height - 2 * sw;
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255 }
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256 else
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257 {
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258 lx = sw;
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259 ly = ((top < margin) ? margin : top);
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260 lw = sbw->core.width - 2 * sw;
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261 lh = (((top + tlen) > floor) ? floor - top : tlen);
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262 }
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263 if (lh <= 0 || lw <= 0)
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264 return;
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265
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266 if (draw_shadow)
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267 {
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268 if (!(sbw->scrollbar.orientation == XtorientHorizontal))
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269 {
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270 /* Top border */
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271 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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272 sbw->scrollbar.top_shadow_GC,
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273 lx, ly, lx + lw - 1, ly);
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274
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275 /* Bottom border */
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276 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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277 sbw->scrollbar.bot_shadow_GC,
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278 lx, ly + lh - 1, lx + lw - 1, ly + lh - 1);
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279 }
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280 else
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281 {
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282 /* Left border */
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283 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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284 sbw->scrollbar.top_shadow_GC,
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285 lx, ly, lx, ly + lh - 1);
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286
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287 /* Right border */
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288 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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289 sbw->scrollbar.bot_shadow_GC,
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290 lx + lw - 1, ly, lx + lw - 1, ly + lh - 1);
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291 }
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292 return;
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293 }
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294
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295 if (fill)
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296 {
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297 XFillRectangle(XtDisplay((Widget) sbw), XtWindow((Widget) sbw),
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298 sbw->scrollbar.gc,
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299 lx, ly, (unsigned int) lw, (unsigned int) lh);
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300
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301 if (!(sbw->scrollbar.orientation == XtorientHorizontal))
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302 {
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303 /* Left border */
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304 XDrawLine(XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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305 sbw->scrollbar.top_shadow_GC,
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306 lx, ly, lx, ly + lh - 1);
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307
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308 /* Right border */
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309 XDrawLine(XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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310 sbw->scrollbar.bot_shadow_GC,
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311 lx + lw - 1, ly, lx + lw - 1, ly + lh - 1);
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312 }
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313 else
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314 {
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315 /* Top border */
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316 XDrawLine(XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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317 sbw->scrollbar.top_shadow_GC,
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318 lx, ly, lx + lw - 1, ly);
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319
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320 /* Bottom border */
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321 XDrawLine(XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
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322 sbw->scrollbar.bot_shadow_GC,
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323 lx, ly + lh - 1, lx + lw - 1, ly + lh - 1);
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324 }
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325 }
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326 else
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327 {
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328 XClearArea(XtDisplay((Widget) sbw), XtWindow((Widget) sbw),
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329 lx, ly, (unsigned int) lw, (unsigned int) lh, FALSE);
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330 }
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331 }
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332
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333 /* Paint the thumb in the area specified by sbw->top and
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334 sbw->shown. The old area is erased. The painting and
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335 erasing is done cleverly so that no flickering will occur.
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336 */
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337
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338 static void
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339 PaintThumb(sbw)
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340 ScrollbarWidget sbw;
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341 {
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342 Position oldtop, oldbot, newtop, newbot;
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343 Dimension margin, tzl;
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344
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345 margin = MARGIN (sbw);
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346 tzl = sbw->scrollbar.length - 2 * margin;
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347 newtop = margin + (int)(tzl * sbw->scrollbar.top);
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348 newbot = newtop + (int)(tzl * sbw->scrollbar.shown) + 1;
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349 if (newbot < newtop + (int)sbw->scrollbar.min_thumb)
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350 newbot = newtop + sbw->scrollbar.min_thumb;
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351
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352 oldtop = sbw->scrollbar.topLoc;
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353 oldbot = oldtop + sbw->scrollbar.shownLength;
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354 sbw->scrollbar.topLoc = newtop;
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355 sbw->scrollbar.shownLength = newbot - newtop;
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356 if (XtIsRealized ((Widget) sbw))
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357 {
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358 if (newtop < oldtop)
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359 FillArea(sbw, newtop, AT_MIN(newbot, oldtop+1),1,0);
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360 if (newtop > oldtop)
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361 FillArea(sbw, oldtop, AT_MIN(newtop, oldbot ),0,0);
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362 if (newbot < oldbot)
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363 FillArea(sbw, AT_MAX(newbot, oldtop), oldbot, 0,0);
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364 if (newbot > oldbot)
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365 FillArea(sbw, AT_MAX(newtop, oldbot-1), newbot, 1,0);
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366
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367 /* Only draw the missing shadows */
|
|
|
368 FillArea(sbw, newtop, newbot, 0, 1);
|
|
|
369 }
|
|
|
370 }
|
|
|
371
|
|
|
372 static void
|
|
|
373 PaintArrows(sbw)
|
|
|
374 ScrollbarWidget sbw;
|
|
|
375 {
|
|
|
376 XPoint point[6];
|
|
|
377 Dimension thickness = sbw->scrollbar.thickness - 1;
|
|
|
378 Dimension size;
|
|
|
379 Dimension off;
|
|
|
380
|
|
|
381 if (XtIsRealized((Widget) sbw))
|
|
|
382 {
|
|
|
383 if ((int)thickness * 2 > (int)sbw->scrollbar.length)
|
|
|
384 {
|
|
|
385 size = sbw->scrollbar.length / 2;
|
|
|
386 off = (int)(thickness - size) / 2;
|
|
|
387 }
|
|
|
388 else
|
|
|
389 {
|
|
|
390 size = thickness;
|
|
|
391 off = 0;
|
|
|
392 }
|
|
|
393 point[0].x = off + sbw->scrollbar.shadow_width;
|
|
|
394 point[0].y = size;
|
|
|
395 point[1].x = thickness - off - sbw->scrollbar.shadow_width;
|
|
|
396 point[1].y = size;
|
|
|
397 point[2].x = thickness / 2;
|
|
|
398 point[2].y = sbw->scrollbar.shadow_width;
|
|
|
399
|
|
|
400 point[3].x = off + sbw->scrollbar.shadow_width;
|
|
|
401 point[3].y = sbw->scrollbar.length - size;
|
|
|
402 point[4].x = thickness - off - sbw->scrollbar.shadow_width;
|
|
|
403 point[4].y = sbw->scrollbar.length - size;
|
|
|
404 point[5].x = thickness / 2;
|
|
|
405 point[5].y = sbw->scrollbar.length - sbw->scrollbar.shadow_width - 1;
|
|
|
406
|
|
|
407 /* horizontal arrows require that x and y coordinates be swapped */
|
|
|
408 if (sbw->scrollbar.orientation == XtorientHorizontal)
|
|
|
409 {
|
|
|
410 int n;
|
|
|
411 int swap;
|
|
|
412 for (n = 0; n < 6; n++)
|
|
|
413 {
|
|
|
414 swap = point[n].x;
|
|
|
415 point[n].x = point[n].y;
|
|
|
416 point[n].y = swap;
|
|
|
417 }
|
|
|
418 }
|
|
|
419 /* draw the up/left arrow */
|
|
|
420 XFillPolygon (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
421 sbw->scrollbar.gc,
|
|
|
422 point, 3,
|
|
|
423 Convex, CoordModeOrigin);
|
|
|
424 XDrawLines (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
425 sbw->scrollbar.bot_shadow_GC,
|
|
|
426 point, 3,
|
|
|
427 CoordModeOrigin);
|
|
|
428 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
429 sbw->scrollbar.top_shadow_GC,
|
|
|
430 point[0].x, point[0].y,
|
|
|
431 point[2].x, point[2].y);
|
|
|
432 /* draw the down/right arrow */
|
|
|
433 XFillPolygon (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
434 sbw->scrollbar.gc,
|
|
|
435 point+3, 3,
|
|
|
436 Convex, CoordModeOrigin);
|
|
|
437 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
438 sbw->scrollbar.top_shadow_GC,
|
|
|
439 point[3].x, point[3].y,
|
|
|
440 point[4].x, point[4].y);
|
|
|
441 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
442 sbw->scrollbar.top_shadow_GC,
|
|
|
443 point[3].x, point[3].y,
|
|
|
444 point[5].x, point[5].y);
|
|
|
445 XDrawLine (XtDisplay ((Widget) sbw), XtWindow ((Widget) sbw),
|
|
|
446 sbw->scrollbar.bot_shadow_GC,
|
|
|
447 point[4].x, point[4].y,
|
|
|
448 point[5].x, point[5].y);
|
|
|
449 }
|
|
|
450 }
|
|
|
451
|
|
|
452 static void
|
|
|
453 Destroy(w)
|
|
|
454 Widget w;
|
|
|
455 {
|
|
|
456 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
457 if (sbw->scrollbar.timer_id != (XtIntervalId) 0)
|
|
|
458 XtRemoveTimeOut (sbw->scrollbar.timer_id);
|
|
|
459 XtReleaseGC(w, sbw->scrollbar.gc);
|
|
|
460 XtReleaseGC(w, sbw->scrollbar.top_shadow_GC);
|
|
|
461 XtReleaseGC(w, sbw->scrollbar.bot_shadow_GC);
|
|
|
462 }
|
|
|
463
|
|
|
464 static void
|
|
|
465 CreateGC(w)
|
|
|
466 Widget w;
|
|
|
467 {
|
|
|
468 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
469 XGCValues gcValues;
|
|
|
470 XtGCMask mask;
|
|
|
471 unsigned int depth = 1;
|
|
|
472
|
|
|
473 if (sbw->scrollbar.thumb == XtUnspecifiedPixmap)
|
|
|
474 {
|
|
|
475 sbw->scrollbar.thumb = XmuCreateStippledPixmap (XtScreen(w),
|
|
|
476 (Pixel) 1, (Pixel) 0, depth);
|
|
|
477 }
|
|
|
478 else if (sbw->scrollbar.thumb != None)
|
|
|
479 {
|
|
|
480 Window root;
|
|
|
481 int x, y;
|
|
|
482 unsigned int width, height, bw;
|
|
|
483
|
|
|
484 if (XGetGeometry (XtDisplay(w), sbw->scrollbar.thumb, &root, &x, &y,
|
|
|
485 &width, &height, &bw, &depth) == 0)
|
|
|
486 EMSG(_("Scrollbar Widget: Could not get geometry of thumb pixmap."));
|
|
|
487 }
|
|
|
488
|
|
|
489 gcValues.foreground = sbw->scrollbar.foreground;
|
|
|
490 gcValues.background = sbw->core.background_pixel;
|
|
|
491 mask = GCForeground | GCBackground;
|
|
|
492
|
|
|
493 if (sbw->scrollbar.thumb != None)
|
|
|
494 {
|
|
|
495 gcValues.fill_style = FillSolid;
|
|
|
496 mask |= GCFillStyle;
|
|
|
497 }
|
|
|
498 /* the creation should be non-caching, because */
|
|
|
499 /* we now set and clear clip masks on the gc returned */
|
|
|
500 sbw->scrollbar.gc = XtGetGC (w, mask, &gcValues);
|
|
|
501 }
|
|
|
502
|
|
|
503 static void
|
|
|
504 SetDimensions(sbw)
|
|
|
505 ScrollbarWidget sbw;
|
|
|
506 {
|
|
|
507 if (sbw->scrollbar.orientation == XtorientVertical)
|
|
|
508 {
|
|
|
509 sbw->scrollbar.length = sbw->core.height;
|
|
|
510 sbw->scrollbar.thickness = sbw->core.width;
|
|
|
511 }
|
|
|
512 else
|
|
|
513 {
|
|
|
514 sbw->scrollbar.length = sbw->core.width;
|
|
|
515 sbw->scrollbar.thickness = sbw->core.height;
|
|
|
516 }
|
|
|
517 }
|
|
|
518
|
|
|
519 /* ARGSUSED */
|
|
|
520 static void
|
|
|
521 Initialize(request, new, args, num_args)
|
|
|
522 Widget request; /* what the client asked for */
|
|
|
523 Widget new; /* what we're going to give him */
|
|
|
524 ArgList args;
|
|
|
525 Cardinal *num_args;
|
|
|
526 {
|
|
|
527 ScrollbarWidget sbw = (ScrollbarWidget) new;
|
|
|
528
|
|
|
529 CreateGC(new);
|
|
|
530 AllocTopShadowGC(new);
|
|
|
531 AllocBotShadowGC(new);
|
|
|
532
|
|
|
533 if (sbw->core.width == 0)
|
|
|
534 sbw->core.width = (sbw->scrollbar.orientation == XtorientVertical)
|
|
|
535 ? sbw->scrollbar.thickness : sbw->scrollbar.length;
|
|
|
536
|
|
|
537 if (sbw->core.height == 0)
|
|
|
538 sbw->core.height = (sbw->scrollbar.orientation == XtorientHorizontal)
|
|
|
539 ? sbw->scrollbar.thickness : sbw->scrollbar.length;
|
|
|
540
|
|
|
541 SetDimensions(sbw);
|
|
|
542 sbw->scrollbar.scroll_mode = SMODE_NONE;
|
|
|
543 sbw->scrollbar.timer_id = (XtIntervalId)0;
|
|
|
544 sbw->scrollbar.topLoc = 0;
|
|
|
545 sbw->scrollbar.shownLength = sbw->scrollbar.min_thumb;
|
|
|
546 }
|
|
|
547
|
|
|
548 static void
|
|
|
549 Realize(w, valueMask, attributes)
|
|
|
550 Widget w;
|
|
|
551 Mask *valueMask;
|
|
|
552 XSetWindowAttributes *attributes;
|
|
|
553 {
|
|
|
554 /* The Simple widget actually stuffs the value in the valuemask. */
|
|
|
555 (*vim_scrollbarWidgetClass->core_class.superclass->core_class.realize)
|
|
|
556 (w, valueMask, attributes);
|
|
|
557 }
|
|
|
558
|
|
|
559 /* ARGSUSED */
|
|
|
560 static Boolean
|
|
|
561 SetValues(current, request, desired, args, num_args)
|
|
|
562 Widget current, /* what I am */
|
|
|
563 request, /* what he wants me to be */
|
|
|
564 desired; /* what I will become */
|
|
|
565 ArgList args;
|
|
|
566 Cardinal *num_args;
|
|
|
567 {
|
|
|
568 ScrollbarWidget sbw = (ScrollbarWidget) current;
|
|
|
569 ScrollbarWidget dsbw = (ScrollbarWidget) desired;
|
|
|
570 Boolean redraw = FALSE;
|
|
|
571
|
|
|
572 /*
|
|
|
573 * If these values are outside the acceptable range ignore them...
|
|
|
574 */
|
|
|
575 if (dsbw->scrollbar.top < 0.0 || dsbw->scrollbar.top > 1.0)
|
|
|
576 dsbw->scrollbar.top = sbw->scrollbar.top;
|
|
|
577
|
|
|
578 if (dsbw->scrollbar.shown < 0.0 || dsbw->scrollbar.shown > 1.0)
|
|
|
579 dsbw->scrollbar.shown = sbw->scrollbar.shown;
|
|
|
580
|
|
|
581 /*
|
|
|
582 * Change colors and stuff...
|
|
|
583 */
|
|
|
584 if (XtIsRealized(desired))
|
|
|
585 {
|
|
|
586 if (sbw->scrollbar.foreground != dsbw->scrollbar.foreground ||
|
|
|
587 sbw->core.background_pixel != dsbw->core.background_pixel ||
|
|
|
588 sbw->scrollbar.thumb != dsbw->scrollbar.thumb)
|
|
|
589 {
|
|
|
590 XtReleaseGC(desired, sbw->scrollbar.gc);
|
|
|
591 CreateGC (desired);
|
|
|
592 redraw = TRUE;
|
|
|
593 }
|
|
|
594 if (sbw->scrollbar.top != dsbw->scrollbar.top ||
|
|
|
595 sbw->scrollbar.shown != dsbw->scrollbar.shown)
|
|
|
596 redraw = TRUE;
|
|
|
597 }
|
|
|
598 return redraw;
|
|
|
599 }
|
|
|
600
|
|
|
601 static void
|
|
|
602 Resize(w)
|
|
|
603 Widget w;
|
|
|
604 {
|
|
|
605 /* ForgetGravity has taken care of background, but thumb may
|
|
|
606 * have to move as a result of the new size. */
|
|
|
607 SetDimensions ((ScrollbarWidget) w);
|
|
|
608 Redisplay(w, (XEvent*) NULL, (Region)NULL);
|
|
|
609 }
|
|
|
610
|
|
|
611
|
|
|
612 /* ARGSUSED */
|
|
|
613 static void
|
|
|
614 Redisplay(w, event, region)
|
|
|
615 Widget w;
|
|
|
616 XEvent *event;
|
|
|
617 Region region;
|
|
|
618 {
|
|
|
619 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
620 int x, y;
|
|
|
621 unsigned int width, height;
|
|
|
622
|
|
|
623 _Xaw3dDrawShadows(w, event, region, FALSE);
|
|
|
624
|
|
|
625 if (sbw->scrollbar.orientation == XtorientHorizontal)
|
|
|
626 {
|
|
|
627 x = sbw->scrollbar.topLoc;
|
|
|
628 y = 1;
|
|
|
629 width = sbw->scrollbar.shownLength;
|
|
|
630 height = sbw->core.height - 2;
|
|
|
631 }
|
|
|
632 else
|
|
|
633 {
|
|
|
634 x = 1;
|
|
|
635 y = sbw->scrollbar.topLoc;
|
|
|
636 width = sbw->core.width - 2;
|
|
|
637 height = sbw->scrollbar.shownLength;
|
|
|
638 }
|
|
|
639 if (region == NULL ||
|
|
|
640 XRectInRegion (region, x, y, width, height) != RectangleOut)
|
|
|
641 {
|
|
|
642 /* Forces entire thumb to be painted. */
|
|
|
643 sbw->scrollbar.topLoc = -(sbw->scrollbar.length + 1);
|
|
|
644 PaintThumb (sbw);
|
|
|
645 }
|
|
|
646 /* we'd like to be region aware here!!!! */
|
|
|
647 PaintArrows(sbw);
|
|
|
648 }
|
|
|
649
|
|
|
650
|
|
|
651 static Boolean
|
|
|
652 CompareEvents(oldEvent, newEvent)
|
|
|
653 XEvent *oldEvent, *newEvent;
|
|
|
654 {
|
|
|
655 #define Check(field) if (newEvent->field != oldEvent->field) return False;
|
|
|
656
|
|
|
657 Check(xany.display);
|
|
|
658 Check(xany.type);
|
|
|
659 Check(xany.window);
|
|
|
660
|
|
|
661 switch (newEvent->type)
|
|
|
662 {
|
|
|
663 case MotionNotify:
|
|
|
664 Check(xmotion.state);
|
|
|
665 break;
|
|
|
666 case ButtonPress:
|
|
|
667 case ButtonRelease:
|
|
|
668 Check(xbutton.state);
|
|
|
669 Check(xbutton.button);
|
|
|
670 break;
|
|
|
671 case KeyPress:
|
|
|
672 case KeyRelease:
|
|
|
673 Check(xkey.state);
|
|
|
674 Check(xkey.keycode);
|
|
|
675 break;
|
|
|
676 case EnterNotify:
|
|
|
677 case LeaveNotify:
|
|
|
678 Check(xcrossing.mode);
|
|
|
679 Check(xcrossing.detail);
|
|
|
680 Check(xcrossing.state);
|
|
|
681 break;
|
|
|
682 }
|
|
|
683 #undef Check
|
|
|
684
|
|
|
685 return True;
|
|
|
686 }
|
|
|
687
|
|
|
688 struct EventData
|
|
|
689 {
|
|
|
690 XEvent *oldEvent;
|
|
|
691 int count;
|
|
|
692 };
|
|
|
693
|
|
|
694 static Bool
|
|
|
695 PeekNotifyEvent(dpy, event, args)
|
|
|
696 Display *dpy;
|
|
|
697 XEvent *event;
|
|
|
698 char *args;
|
|
|
699 {
|
|
|
700 struct EventData *eventData = (struct EventData*)args;
|
|
|
701
|
|
|
702 return ((++eventData->count == QLength(dpy)) /* since PeekIf blocks */
|
|
|
703 || CompareEvents(event, eventData->oldEvent));
|
|
|
704 }
|
|
|
705
|
|
|
706
|
|
|
707 static Boolean
|
|
|
708 LookAhead(w, event)
|
|
|
709 Widget w;
|
|
|
710 XEvent *event;
|
|
|
711 {
|
|
|
712 XEvent newEvent;
|
|
|
713 struct EventData eventData;
|
|
|
714
|
|
|
715 if (QLength (XtDisplay (w)) == 0)
|
|
|
716 return False;
|
|
|
717
|
|
|
718 eventData.count = 0;
|
|
|
719 eventData.oldEvent = event;
|
|
|
720
|
|
|
721 XPeekIfEvent (XtDisplay (w), &newEvent, PeekNotifyEvent, (char*)&eventData);
|
|
|
722
|
|
|
723 return CompareEvents (event, &newEvent);
|
|
|
724 }
|
|
|
725
|
|
|
726
|
|
|
727 static void
|
|
|
728 ExtractPosition(event, x, y, state)
|
|
|
729 XEvent *event;
|
|
|
730 Position *x, *y; /* RETURN */
|
|
|
731 unsigned int *state; /* RETURN */
|
|
|
732 {
|
|
|
733 switch (event->type)
|
|
|
734 {
|
|
|
735 case MotionNotify:
|
|
|
736 *x = event->xmotion.x;
|
|
|
737 *y = event->xmotion.y;
|
|
|
738 if (state != NULL)
|
|
|
739 *state = event->xmotion.state;
|
|
|
740 break;
|
|
|
741 case ButtonPress:
|
|
|
742 case ButtonRelease:
|
|
|
743 *x = event->xbutton.x;
|
|
|
744 *y = event->xbutton.y;
|
|
|
745 if (state != NULL)
|
|
|
746 *state = event->xbutton.state;
|
|
|
747 break;
|
|
|
748 case KeyPress:
|
|
|
749 case KeyRelease:
|
|
|
750 *x = event->xkey.x;
|
|
|
751 *y = event->xkey.y;
|
|
|
752 if (state != NULL)
|
|
|
753 *state = event->xkey.state;
|
|
|
754 break;
|
|
|
755 case EnterNotify:
|
|
|
756 case LeaveNotify:
|
|
|
757 *x = event->xcrossing.x;
|
|
|
758 *y = event->xcrossing.y;
|
|
|
759 if (state != NULL)
|
|
|
760 *state = event->xcrossing.state;
|
|
|
761 break;
|
|
|
762 default:
|
|
|
763 *x = 0; *y = 0;
|
|
|
764 if (state != NULL)
|
|
|
765 *state = 0;
|
|
|
766 }
|
|
|
767 }
|
|
|
768
|
|
|
769 static void
|
|
|
770 HandleThumb(w, event, params, num_params)
|
|
|
771 Widget w;
|
|
|
772 XEvent *event;
|
|
|
773 String *params;
|
|
|
774 Cardinal *num_params;
|
|
|
775 {
|
|
|
776 Position x, y, loc;
|
|
|
777 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
778
|
|
|
779 ExtractPosition(event, &x, &y, (unsigned int *)NULL);
|
|
|
780 loc = PICKLENGTH(sbw, x, y);
|
|
|
781 /* if the motion event puts the pointer in thumb, call Move and Notify */
|
|
|
782 /* also call Move and Notify if we're already in continuous scroll mode */
|
|
|
783 if (sbw->scrollbar.scroll_mode == SMODE_CONT ||
|
|
|
784 (loc >= sbw->scrollbar.topLoc &&
|
|
|
785 loc <= sbw->scrollbar.topLoc + (int)sbw->scrollbar.shownLength))
|
|
|
786 {
|
|
|
787 XtCallActionProc(w, "MoveThumb", event, params, *num_params);
|
|
|
788 XtCallActionProc(w, "NotifyThumb", event, params, *num_params);
|
|
|
789 }
|
|
|
790 }
|
|
|
791
|
|
|
792 /* ARGSUSED */
|
|
|
793 static void
|
|
|
794 RepeatNotify(client_data, idp)
|
|
|
795 XtPointer client_data;
|
|
|
796 XtIntervalId *idp;
|
|
|
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
|
|
|
823 XtCallCallbacks((Widget)sbw, XtNscrollProc, (XtPointer)call_data);
|
|
|
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 /* ARGSUSED */
|
|
|
843 static void
|
|
|
844 ScrollOneLineUp(w, event, params, num_params)
|
|
|
845 Widget w;
|
|
|
846 XEvent *event;
|
|
|
847 String *params;
|
|
|
848 Cardinal *num_params;
|
|
|
849 {
|
|
|
850 ScrollSome(w, event, -ONE_LINE_DATA);
|
|
|
851 }
|
|
|
852
|
|
|
853 /* ARGSUSED */
|
|
|
854 static void
|
|
|
855 ScrollOneLineDown(w, event, params, num_params)
|
|
|
856 Widget w;
|
|
|
857 XEvent *event;
|
|
|
858 String *params;
|
|
|
859 Cardinal *num_params;
|
|
|
860 {
|
|
|
861 ScrollSome(w, event, ONE_LINE_DATA);
|
|
|
862 }
|
|
|
863
|
|
|
864 /* ARGSUSED */
|
|
|
865 static void
|
|
|
866 ScrollPageDown(w, event, params, num_params)
|
|
|
867 Widget w;
|
|
|
868 XEvent *event;
|
|
|
869 String *params;
|
|
|
870 Cardinal *num_params;
|
|
|
871 {
|
|
|
872 ScrollSome(w, event, ONE_PAGE_DATA);
|
|
|
873 }
|
|
|
874
|
|
|
875 /* ARGSUSED */
|
|
|
876 static void
|
|
|
877 ScrollPageUp(w, event, params, num_params)
|
|
|
878 Widget w;
|
|
|
879 XEvent *event;
|
|
|
880 String *params;
|
|
|
881 Cardinal *num_params;
|
|
|
882 {
|
|
|
883 ScrollSome(w, event, -ONE_PAGE_DATA);
|
|
|
884 }
|
|
|
885
|
|
|
886 static void
|
|
|
887 ScrollSome(w, event, call_data)
|
|
|
888 Widget w;
|
|
|
889 XEvent *event;
|
|
|
890 int call_data;
|
|
|
891 {
|
|
|
892 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
893
|
|
|
894 if (sbw->scrollbar.scroll_mode == SMODE_CONT) /* if scroll continuous */
|
|
|
895 return;
|
|
|
896
|
|
|
897 if (LookAhead(w, event))
|
|
|
898 return;
|
|
|
899
|
|
|
900 sbw->scrollbar.scroll_mode = SMODE_LINE_UP;
|
|
|
901 XtCallCallbacks(w, XtNscrollProc, (XtPointer)call_data);
|
|
|
902 }
|
|
|
903
|
|
|
904 /* ARGSUSED */
|
|
|
905 static void
|
|
|
906 NotifyScroll(w, event, params, num_params)
|
|
|
907 Widget w;
|
|
|
908 XEvent *event;
|
|
|
909 String *params;
|
|
|
910 Cardinal *num_params;
|
|
|
911 {
|
|
|
912 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
913 Position x, y, loc;
|
|
|
914 Dimension arrow_size;
|
|
|
915 unsigned long delay = 0;
|
|
|
916 int call_data = 0;
|
|
|
917 unsigned int state;
|
|
|
918
|
|
|
919 if (sbw->scrollbar.scroll_mode == SMODE_CONT) /* if scroll continuous */
|
|
|
920 return;
|
|
|
921
|
|
|
922 if (LookAhead (w, event))
|
|
|
923 return;
|
|
|
924
|
|
|
925 ExtractPosition(event, &x, &y, &state);
|
|
|
926 loc = PICKLENGTH(sbw, x, y);
|
|
|
927
|
|
|
928 if ((int)sbw->scrollbar.thickness * 2 > (int)sbw->scrollbar.length)
|
|
|
929 arrow_size = sbw->scrollbar.length / 2;
|
|
|
930 else
|
|
|
931 arrow_size = sbw->scrollbar.thickness;
|
|
|
932
|
|
|
933 /*
|
|
|
934 * handle CTRL modifier
|
|
|
935 */
|
|
|
936 if (state & ControlMask)
|
|
|
937 {
|
|
|
938 if (loc > sbw->scrollbar.topLoc + (Position)sbw->scrollbar.shownLength)
|
|
|
939 call_data = END_PAGE_DATA;
|
|
|
940 else
|
|
|
941 call_data = -END_PAGE_DATA;
|
|
|
942 sbw->scrollbar.scroll_mode = SMODE_NONE;
|
|
|
943 }
|
|
|
944 /*
|
|
|
945 * handle first arrow zone
|
|
|
946 */
|
|
|
947 else if (loc < (Position)arrow_size)
|
|
|
948 {
|
|
|
949 call_data = -ONE_LINE_DATA;
|
|
|
950 sbw->scrollbar.scroll_mode = SMODE_LINE_UP;
|
|
|
951 delay = LINE_DELAY;
|
|
|
952 }
|
|
|
953
|
|
|
954 /*
|
|
|
955 * handle last arrow zone
|
|
|
956 */
|
|
|
957 else if (loc > (Position)(sbw->scrollbar.length - arrow_size))
|
|
|
958 {
|
|
|
959 call_data = ONE_LINE_DATA;
|
|
|
960 sbw->scrollbar.scroll_mode = SMODE_LINE_DOWN;
|
|
|
961 delay = LINE_DELAY;
|
|
|
962 }
|
|
|
963
|
|
|
964 /*
|
|
|
965 * handle zone "above" the thumb
|
|
|
966 */
|
|
|
967 else if (loc < sbw->scrollbar.topLoc)
|
|
|
968 {
|
|
|
969 call_data = -ONE_PAGE_DATA;
|
|
|
970 sbw->scrollbar.scroll_mode = SMODE_PAGE_UP;
|
|
|
971 delay = PAGE_DELAY;
|
|
|
972 }
|
|
|
973
|
|
|
974 /*
|
|
|
975 * handle zone "below" the thumb
|
|
|
976 */
|
|
|
977 else if (loc > sbw->scrollbar.topLoc + (Position)sbw->scrollbar.shownLength)
|
|
|
978 {
|
|
|
979 call_data = ONE_PAGE_DATA;
|
|
|
980 sbw->scrollbar.scroll_mode = SMODE_PAGE_DOWN;
|
|
|
981 delay = PAGE_DELAY;
|
|
|
982 }
|
|
|
983
|
|
|
984 if (call_data)
|
|
|
985 XtCallCallbacks(w, XtNscrollProc, (XtPointer)call_data);
|
|
|
986
|
|
|
987 /* establish autoscroll */
|
|
|
988 if (delay)
|
|
|
989 sbw->scrollbar.timer_id =
|
|
|
990 XtAppAddTimeOut(XtWidgetToApplicationContext(w),
|
|
|
991 delay, RepeatNotify, (XtPointer)w);
|
|
|
992 }
|
|
|
993
|
|
|
994 /* ARGSUSED */
|
|
|
995 static void
|
|
|
996 EndScroll(w, event, params, num_params)
|
|
|
997 Widget w;
|
|
|
998 XEvent *event; /* unused */
|
|
|
999 String *params; /* unused */
|
|
|
1000 Cardinal *num_params; /* unused */
|
|
|
1001 {
|
|
|
1002 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
1003
|
|
|
1004 sbw->scrollbar.scroll_mode = SMODE_NONE;
|
|
|
1005 /* no need to remove any autoscroll timeout; it will no-op */
|
|
|
1006 /* because the scroll_mode is SMODE_NONE */
|
|
|
1007 /* but be sure to remove timeout in destroy proc */
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 static float
|
|
|
1011 FractionLoc(sbw, x, y)
|
|
|
1012 ScrollbarWidget sbw;
|
|
|
1013 int x, y;
|
|
|
1014 {
|
|
|
1015 int margin;
|
|
|
1016 float height, width;
|
|
|
1017
|
|
|
1018 margin = MARGIN(sbw);
|
|
|
1019 x -= margin;
|
|
|
1020 y -= margin;
|
|
|
1021 height = (float)sbw->core.height - 2 * margin;
|
|
|
1022 width = (float)sbw->core.width - 2 * margin;
|
|
|
1023 return PICKLENGTH(sbw, x / width, y / height);
|
|
|
1024 }
|
|
|
1025
|
|
|
1026 /* ARGSUSED */
|
|
|
1027 static void
|
|
|
1028 MoveThumb(w, event, params, num_params)
|
|
|
1029 Widget w;
|
|
|
1030 XEvent *event;
|
|
|
1031 String *params; /* unused */
|
|
|
1032 Cardinal *num_params; /* unused */
|
|
|
1033 {
|
|
|
1034 ScrollbarWidget sbw = (ScrollbarWidget)w;
|
|
|
1035 Position x, y;
|
|
|
1036 float top;
|
|
|
1037 char old_mode = sbw->scrollbar.scroll_mode;
|
|
|
1038
|
|
|
1039 sbw->scrollbar.scroll_mode = SMODE_CONT; /* indicate continuous scroll */
|
|
|
1040
|
|
|
1041 if (LookAhead(w, event))
|
|
|
1042 return;
|
|
|
1043
|
|
|
1044 if (!event->xmotion.same_screen)
|
|
|
1045 return;
|
|
|
1046
|
|
|
1047 ExtractPosition(event, &x, &y, (unsigned int *)NULL);
|
|
|
1048
|
|
|
1049 top = FractionLoc(sbw, x, y);
|
|
|
1050
|
|
|
1051 if (old_mode != SMODE_CONT) /* start dragging: set offset */
|
|
|
1052 {
|
|
|
1053 if (event->xbutton.button == Button2)
|
|
|
1054 sbw->scrollbar.scroll_off = sbw->scrollbar.shown / 2.;
|
|
|
1055 else
|
|
|
1056 sbw->scrollbar.scroll_off = top - sbw->scrollbar.top;
|
|
|
1057 }
|
|
|
1058
|
|
|
1059 top -= sbw->scrollbar.scroll_off;
|
|
|
1060 if (sbw->scrollbar.limit_thumb)
|
|
|
1061 top = FloatInRange(top, 0.0,
|
|
|
1062 sbw->scrollbar.max - sbw->scrollbar.shown + 0.000001);
|
|
|
1063 else
|
|
|
1064 top = FloatInRange(top, 0.0, sbw->scrollbar.max);
|
|
|
1065
|
|
|
1066 sbw->scrollbar.top = top;
|
|
|
1067 PaintThumb(sbw);
|
|
|
1068 XFlush(XtDisplay(w)); /* re-draw it before Notifying */
|
|
|
1069 }
|
|
|
1070
|
|
|
1071
|
|
|
1072 /* ARGSUSED */
|
|
|
1073 static void
|
|
|
1074 NotifyThumb(w, event, params, num_params)
|
|
|
1075 Widget w;
|
|
|
1076 XEvent *event;
|
|
|
1077 String *params; /* unused */
|
|
|
1078 Cardinal *num_params; /* unused */
|
|
|
1079 {
|
|
|
1080 ScrollbarWidget sbw = (ScrollbarWidget)w;
|
|
1757
|
1081 /* Use a union to avoid a warning for the weird conversion from float to
|
|
|
1082 * XtPointer. Comes from Xaw/Scrollbar.c. */
|
|
|
1083 union {
|
|
|
1084 XtPointer xtp;
|
|
|
1085 float xtf;
|
|
|
1086 } xtpf;
|
|
7
|
1087
|
|
|
1088 if (LookAhead(w, event))
|
|
|
1089 return;
|
|
|
1090
|
|
|
1091 /* thumbProc is not pretty, but is necessary for backwards
|
|
|
1092 compatibility on those architectures for which it work{s,ed};
|
|
|
1093 the intent is to pass a (truncated) float by value. */
|
|
1757
|
1094 xtpf.xtf = sbw->scrollbar.top;
|
|
|
1095 XtCallCallbacks(w, XtNthumbProc, xtpf.xtp);
|
|
7
|
1096 XtCallCallbacks(w, XtNjumpProc, (XtPointer)&sbw->scrollbar.top);
|
|
|
1097 }
|
|
|
1098
|
|
|
1099 /* ARGSUSED */
|
|
|
1100 static void
|
|
|
1101 AllocTopShadowGC(w)
|
|
|
1102 Widget w;
|
|
|
1103 {
|
|
|
1104 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
1105 XtGCMask valuemask;
|
|
|
1106 XGCValues myXGCV;
|
|
|
1107
|
|
|
1108 valuemask = GCForeground;
|
|
|
1109 myXGCV.foreground = sbw->scrollbar.top_shadow_pixel;
|
|
|
1110 sbw->scrollbar.top_shadow_GC = XtGetGC(w, valuemask, &myXGCV);
|
|
|
1111 }
|
|
|
1112
|
|
|
1113 /* ARGSUSED */
|
|
|
1114 static void
|
|
|
1115 AllocBotShadowGC(w)
|
|
|
1116 Widget w;
|
|
|
1117 {
|
|
|
1118 ScrollbarWidget sbw = (ScrollbarWidget) w;
|
|
|
1119 XtGCMask valuemask;
|
|
|
1120 XGCValues myXGCV;
|
|
|
1121
|
|
|
1122 valuemask = GCForeground;
|
|
|
1123 myXGCV.foreground = sbw->scrollbar.bot_shadow_pixel;
|
|
|
1124 sbw->scrollbar.bot_shadow_GC = XtGetGC(w, valuemask, &myXGCV);
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 /* ARGSUSED */
|
|
|
1128 static void
|
|
|
1129 _Xaw3dDrawShadows(gw, event, region, out)
|
|
|
1130 Widget gw;
|
|
|
1131 XEvent *event;
|
|
|
1132 Region region;
|
|
|
1133 int out;
|
|
|
1134 {
|
|
|
1135 XPoint pt[6];
|
|
|
1136 ScrollbarWidget sbw = (ScrollbarWidget) gw;
|
|
|
1137 Dimension s = sbw->scrollbar.shadow_width;
|
|
|
1138 /*
|
|
|
1139 * draw the shadows using the core part width and height,
|
|
|
1140 * and the scrollbar part shadow_width.
|
|
|
1141 *
|
|
|
1142 * no point to do anything if the shadow_width is 0 or the
|
|
|
1143 * widget has not been realized.
|
|
|
1144 */
|
|
|
1145 if (s > 0 && XtIsRealized(gw))
|
|
|
1146 {
|
|
|
1147 Dimension h = sbw->core.height;
|
|
|
1148 Dimension w = sbw->core.width;
|
|
|
1149 Dimension wms = w - s;
|
|
|
1150 Dimension hms = h - s;
|
|
|
1151 Display *dpy = XtDisplay (gw);
|
|
|
1152 Window win = XtWindow (gw);
|
|
|
1153 GC top, bot;
|
|
|
1154
|
|
|
1155 if (out)
|
|
|
1156 {
|
|
|
1157 top = sbw->scrollbar.top_shadow_GC;
|
|
|
1158 bot = sbw->scrollbar.bot_shadow_GC;
|
|
|
1159 }
|
|
|
1160 else
|
|
|
1161 {
|
|
|
1162 top = sbw->scrollbar.bot_shadow_GC;
|
|
|
1163 bot = sbw->scrollbar.top_shadow_GC;
|
|
|
1164 }
|
|
|
1165
|
|
|
1166 /* top-left shadow */
|
|
|
1167 if ((region == NULL) ||
|
|
|
1168 (XRectInRegion (region, 0, 0, w, s) != RectangleOut) ||
|
|
|
1169 (XRectInRegion (region, 0, 0, s, h) != RectangleOut))
|
|
|
1170 {
|
|
|
1171 pt[0].x = 0; pt[0].y = h;
|
|
|
1172 pt[1].x = pt[1].y = 0;
|
|
|
1173 pt[2].x = w; pt[2].y = 0;
|
|
|
1174 pt[3].x = wms; pt[3].y = s;
|
|
|
1175 pt[4].x = pt[4].y = s;
|
|
|
1176 pt[5].x = s; pt[5].y = hms;
|
|
|
1177 XFillPolygon (dpy, win, top, pt, 6, Complex, CoordModeOrigin);
|
|
|
1178 }
|
|
|
1179
|
|
|
1180 /* bottom-right shadow */
|
|
|
1181 if ((region == NULL) ||
|
|
|
1182 (XRectInRegion (region, 0, hms, w, s) != RectangleOut) ||
|
|
|
1183 (XRectInRegion (region, wms, 0, s, h) != RectangleOut))
|
|
|
1184 {
|
|
|
1185 pt[0].x = 0; pt[0].y = h;
|
|
|
1186 pt[1].x = w; pt[1].y = h;
|
|
|
1187 pt[2].x = w; pt[2].y = 0;
|
|
|
1188 pt[3].x = wms; pt[3].y = s;
|
|
|
1189 pt[4].x = wms; pt[4].y = hms;
|
|
|
1190 pt[5].x = s; pt[5].y = hms;
|
|
|
1191 XFillPolygon (dpy, win, bot, pt, 6, Complex, CoordModeOrigin);
|
|
|
1192 }
|
|
|
1193 }
|
|
|
1194 }
|
|
|
1195
|
|
|
1196
|
|
|
1197 /*
|
|
|
1198 * Set the scroll bar to the given location.
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1199 */
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1200 void
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1201 vim_XawScrollbarSetThumb(w, top, shown, max)
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1202 Widget w;
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1203 double top, shown, max;
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1204 {
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1205 ScrollbarWidget sbw = (ScrollbarWidget) w;
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1206
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1207 if (sbw->scrollbar.scroll_mode == SMODE_CONT) /* if still thumbing */
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1208 return;
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1209
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1210 sbw->scrollbar.max = (max > 1.0) ? 1.0 :
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1211 (max >= 0.0) ? max : sbw->scrollbar.max;
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1212
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1213 sbw->scrollbar.top = (top > sbw->scrollbar.max) ? sbw->scrollbar.max :
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1214 (top >= 0.0) ? top : sbw->scrollbar.top;
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1215
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1216 sbw->scrollbar.shown = (shown > 1.0) ? 1.0 :
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1217 (shown >= 0.0) ? shown : sbw->scrollbar.shown;
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1218
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1219 PaintThumb(sbw);
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1220 }
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