Mercurial > hg > xemacs-beta
annotate lwlib/xlwscrollbar.c @ 5115:54700d784be9
Correct the #'delete-duplicates calls, setup-paths.el
2010-03-11 Aidan Kehoe <kehoea@parhasard.net>
* setup-paths.el (paths-find-emacs-roots)
(paths-construct-info-path):
Pass :from-end t to the delete-duplicates calls in these
functions, now the compiler macro no longer defaults it to t.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Thu, 11 Mar 2010 15:41:10 +0000 |
| parents | 726060ee587c |
| children | ade4c7e2c6cb |
| rev | line source |
|---|---|
| 428 | 1 /* Implements a lightweight scrollbar widget. |
| 2 Copyright (C) 1992, 1993, 1994 Lucid, Inc. | |
| 3 Copyright (C) 1997 Sun Microsystems, Inc. | |
| 4 | |
| 5 This file is part of the Lucid Widget Library. | |
| 6 | |
| 7 The Lucid Widget Library is free software; you can redistribute it and/or | |
| 8 modify it under the terms of the GNU General Public License as published by | |
| 9 the Free Software Foundation; either version 2, or (at your option) | |
| 10 any later version. | |
| 11 | |
| 12 The Lucid Widget Library is distributed in the hope that it will be useful, | |
| 13 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 GNU General Public License for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with XEmacs; see the file COPYING. If not, write to | |
| 19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 20 Boston, MA 02111-1307, USA. */ | |
| 21 | |
| 22 /* Created by Douglas Keller <dkeller@vnet.ibm.com> */ | |
| 23 /* Lots of hacking by Martin Buchholz */ | |
| 24 | |
| 25 /* | |
| 26 * Athena-style scrollbar button bindings added on Sun Dec 24 22:03:57 1995 | |
| 27 * by Jonathan Stigelman <Stig@hackvan.com>... Ho ho ho! | |
| 28 * | |
| 1389 | 29 * To use them, put this resource in your .Xresources |
| 428 | 30 * |
| 31 * Emacs*XlwScrollBar.translations: #override \n\ | |
| 32 * <Btn1Down>: PageDownOrRight() \n\ | |
| 766 | 33 * <Btn3Down>: PageUpOrLeft() \n\ |
| 34 * <Btn3Up>: Release() | |
| 428 | 35 * |
| 36 */ | |
| 37 | |
| 38 /* | |
| 39 * Resources Supported: | |
| 40 * XmNforeground | |
| 41 * XmNbackground | |
| 42 * XmNtopShadowColor | |
| 43 * XmNtopShadowPixmap | |
| 44 * XmNbottomShadowColor | |
| 45 * XmNbottomShadowPixmap | |
| 46 * XmNtroughColor | |
| 47 * XmNshadowThickness | |
| 48 * XmNshowArrows | |
| 49 * XmNorientation | |
| 50 * XmNborderWidth | |
| 51 * | |
| 52 * XmNminimum | |
| 53 * XmNmaximum | |
| 54 * XmNvalue | |
| 55 * XmNincrement | |
| 56 * XmNpageIncrement | |
| 57 * | |
| 58 * XmNvalueChangedCallback | |
| 59 * XmNincrementCallback | |
| 60 * XmNdecrementCallback | |
| 61 * XmNpageIncrementCallback | |
| 62 * XmNpageDecrementCallback | |
| 63 * XmNtoTopCallback | |
| 64 * XmNtoBottomCallback | |
| 65 * XmNdragCallback | |
| 66 * | |
| 67 * XmNsliderStyle - values can be: "plain" or "dimple" | |
| 68 * XmNarrowPosition - values can be: "opposite" or "same" | |
| 69 * | |
| 70 */ | |
| 71 | |
| 72 #include <config.h> | |
| 73 #include <stdio.h> | |
| 74 #include <stdlib.h> | |
| 75 #include <limits.h> | |
| 76 | |
| 77 #include <X11/IntrinsicP.h> | |
| 78 #include <X11/StringDefs.h> | |
| 79 #include <X11/bitmaps/gray> | |
| 80 | |
| 3094 | 81 #include "lwlib-colors.h" |
|
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82 #include "xt-wrappers.h" |
| 3094 | 83 |
| 428 | 84 #include "xlwscrollbarP.h" |
| 85 #include "xlwscrollbar.h" | |
| 86 | |
| 87 #ifdef USE_DEBUG_MALLOC | |
| 88 #include <dmalloc.h> | |
| 89 #endif | |
| 90 | |
| 91 #define DBUG(x) | |
| 92 | |
| 93 #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \ | |
| 94 ? ((unsigned long) (x)) : ((unsigned long) (y))) | |
| 95 | |
| 96 #define VERT(w) ((w)->sb.orientation == XmVERTICAL) | |
| 97 | |
| 98 #define SS_MIN 8 | |
| 99 | |
| 100 typedef enum | |
| 101 { | |
| 102 BUTTON_NONE, | |
| 103 BUTTON_SLIDER, | |
| 104 BUTTON_UP_ARROW, | |
| 105 BUTTON_DOWN_ARROW, | |
| 106 BUTTON_TROUGH_ABOVE, | |
| 107 BUTTON_TROUGH_BELOW | |
| 108 } button_where; | |
| 109 | |
| 110 typedef enum | |
| 111 { | |
| 112 SLIDER_PLAIN, | |
| 113 SLIDER_DIMPLE | |
| 114 } SliderStyle; | |
| 115 | |
| 116 /*-------------------------- Resources ----------------------------------*/ | |
| 117 | |
| 118 static XtResource resources[] = { | |
|
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119 #define offset(field) XtOffset(XlwScrollBarWidget, field) |
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120 #define res(name,_class,intrepr,type,member,extrepr,value) \ |
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121 Xt_RESOURCE (name, _class, intrepr, type, offset(sb.member), extrepr, value) |
| 428 | 122 |
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123 res (XmNforeground, XmCForeground, XtRPixel, Pixel, |
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124 foreground, XtRImmediate, XtDefaultForeground), |
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125 res (XmNtopShadowColor, XmCTopShadowColor, XtRPixel, |
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126 Pixel, topShadowColor, XtRImmediate, ~0), |
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127 res (XmNbottomShadowColor, XmCBottomShadowColor, XtRPixel, |
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128 Pixel, bottomShadowColor, XtRImmediate, ~0), |
| 428 | 129 |
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130 res (XmNtopShadowPixmap, XmCTopShadowPixmap, XtRPixmap, |
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131 Pixmap, topShadowPixmap, XtRImmediate, None), |
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132 res (XmNbottomShadowPixmap, XmCBottomShadowPixmap, |
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133 XtRPixmap, Pixmap, bottomShadowPixmap, XtRImmediate, None), |
| 428 | 134 |
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135 res (XmNtroughColor, XmCTroughColor, XtRPixel, Pixel, troughColor, |
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136 XtRImmediate, ~0), |
| 428 | 137 |
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138 res (XmNshadowThickness, XmCShadowThickness, XtRInt, int, |
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139 shadowThickness, XtRImmediate, 2), |
| 428 | 140 |
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141 Xt_RESOURCE (XmNborderWidth, XmCBorderWidth, XtRDimension, Dimension, |
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142 offset(core.border_width), XtRImmediate, 0), |
| 428 | 143 |
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144 res (XmNshowArrows, XmCShowArrows, XtRBoolean, Boolean, showArrows, |
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145 XtRImmediate, True), |
| 428 | 146 |
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147 res (XmNinitialDelay, XmCInitialDelay, XtRInt, int, initialDelay, |
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148 XtRImmediate, 250), |
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149 res (XmNrepeatDelay, XmCRepeatDelay, XtRInt, int, repeatDelay, |
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150 XtRImmediate, 50), |
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151 |
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152 res (XmNorientation, XmCOrientation, XtROrientation, |
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153 unsigned char, orientation, XtRImmediate, XmVERTICAL), |
| 428 | 154 |
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155 res (XmNminimum, XmCMinimum, XtRInt, int, minimum, XtRImmediate, 0), |
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156 res (XmNmaximum, XmCMaximum, XtRInt, int, maximum, XtRImmediate, 100), |
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157 res (XmNvalue, XmCValue, XtRInt, int, value, XtRImmediate, 0), |
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158 res (XmNsliderSize, XmCSliderSize, XtRInt, int, sliderSize, XtRImmediate, 10), |
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159 res (XmNincrement, XmCIncrement, XtRInt, int, increment, XtRImmediate, 1), |
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160 res (XmNpageIncrement, XmCPageIncrement, XtRInt, int, |
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161 pageIncrement, XtRImmediate, 10), |
| 428 | 162 |
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163 res (XmNvalueChangedCallback, XmCValueChangedCallback, |
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164 XtRCallback, XtPointer, valueChangedCBL, XtRCallback, NULL), |
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165 res (XmNincrementCallback, XmCIncrementCallback, |
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166 XtRCallback, XtPointer, incrementCBL, XtRCallback, NULL), |
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167 res (XmNdecrementCallback, XmCDecrementCallback, |
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168 XtRCallback, XtPointer, decrementCBL, XtRCallback, NULL), |
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169 res (XmNpageIncrementCallback, XmCPageIncrementCallback, |
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170 XtRCallback, XtPointer, pageIncrementCBL, XtRCallback, NULL), |
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171 res (XmNpageDecrementCallback, XmCPageDecrementCallback, |
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172 XtRCallback, XtPointer, pageDecrementCBL, XtRCallback, NULL), |
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173 res (XmNtoTopCallback, XmCToTopCallback, XtRCallback, |
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174 XtPointer, toTopCBL, XtRCallback, NULL), |
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175 res (XmNtoBottomCallback, XmCToBottomCallback, XtRCallback, |
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176 XtPointer, toBottomCBL, XtRCallback, NULL), |
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177 res (XmNdragCallback, XmCDragCallback, XtRCallback, |
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178 XtPointer, dragCBL, XtRCallback, NULL), |
| 428 | 179 |
| 180 /* "knob" is obsolete; use "slider" instead. */ | |
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181 res (XmNsliderStyle, XmCSliderStyle, XtRString, char *, |
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182 sliderStyle, XtRImmediate, NULL), |
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183 res (XmNknobStyle, XmCKnobStyle, XtRString, char *, |
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184 knobStyle, XtRImmediate, NULL), |
| 428 | 185 |
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186 res (XmNarrowPosition, XmCArrowPosition, XtRString, char *, |
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187 arrowPosition, XtRImmediate, NULL), |
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188 #undef offset |
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189 #undef res |
| 428 | 190 }; |
| 191 | |
| 192 /*-------------------------- Prototypes ---------------------------------*/ | |
| 193 | |
| 194 /* Actions */ | |
| 195 typedef void Action(Widget w, XEvent *event, String *parms, Cardinal *num_parms); | |
| 196 static Action Select, PageUpOrLeft, PageDownOrRight, Drag, Release, Jump, Abort; | |
| 197 | |
| 198 /* Methods */ | |
| 199 static void Initialize(Widget treq, Widget tnew, ArgList args, Cardinal *num_args); | |
| 200 static Boolean SetValues(Widget current, Widget request, Widget nw, ArgList args, Cardinal *num_args); | |
| 201 static void Destroy(Widget widget); | |
| 202 static void Redisplay(Widget widget, XEvent *event, Region region); | |
| 203 static void Resize(Widget widget); | |
| 204 static void Realize(Widget widget, XtValueMask *valuemask, XSetWindowAttributes *attr); | |
| 205 | |
| 206 /* Private */ | |
| 207 | |
| 208 /*-------------------------- Actions Table ------------------------------*/ | |
| 209 static XtActionsRec actions[] = | |
| 210 { | |
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211 { (String) "Select", Select}, |
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212 { (String) "PageDownOrRight", PageDownOrRight}, |
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213 { (String) "PageUpOrLeft", PageUpOrLeft}, |
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214 { (String) "Drag", Drag}, |
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215 { (String) "Release", Release}, |
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216 { (String) "Jump", Jump}, |
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217 { (String) "Abort", Abort}, |
| 428 | 218 }; |
| 219 | |
| 220 /*--------------------- Default Translation Table -----------------------*/ | |
| 221 static char default_translations[] = | |
| 222 "<Btn1Down>: Select()\n" | |
| 223 "<Btn1Motion>: Drag()\n" | |
| 224 "<Btn1Up>: Release()\n" | |
| 225 "<Btn2Down>: Jump()\n" | |
| 226 "<Btn2Motion>: Drag()\n" | |
| 227 "<Btn2Up>: Release()\n" | |
| 228 "<Key>Delete: Abort()" | |
| 229 ; | |
| 230 | |
| 231 /*------------------- Class record initialization -----------------------*/ | |
| 232 XlwScrollBarClassRec xlwScrollBarClassRec = { | |
| 233 /* core_class fields */ | |
| 234 { | |
| 235 /* superclass */ (WidgetClass) &coreClassRec, | |
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parents:
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236 /* class_name */ (String) "XlwScrollBar", |
| 428 | 237 /* widget_size */ sizeof(XlwScrollBarRec), |
| 238 /* class_initialize */ NULL, | |
| 239 /* class_part_init */ NULL, | |
| 240 /* class_inited */ False, | |
| 241 /* initialize */ Initialize, | |
| 242 /* initialize_hook */ NULL, | |
| 243 /* realize */ Realize, | |
| 244 /* actions */ actions, | |
| 245 /* num_actions */ XtNumber(actions), | |
| 246 /* resources */ resources, | |
| 247 /* num_resources */ XtNumber(resources), | |
| 248 /* xrm_class */ NULLQUARK, | |
| 249 /* compress_motion */ True, | |
| 250 /* compress_exposure */ XtExposeCompressMultiple, | |
| 251 /* compress_enterleave */ True, | |
| 252 /* visible_interest */ False, | |
| 253 /* destroy */ Destroy, | |
| 254 /* resize */ Resize, | |
| 255 /* expose */ Redisplay, | |
| 256 /* set_values */ SetValues, | |
| 257 /* set_values_hook */ NULL, | |
| 258 /* set_values_almost */ XtInheritSetValuesAlmost, | |
| 259 /* get_values_hook */ NULL, | |
| 260 /* accept_focus */ NULL, | |
| 261 /* version */ XtVersionDontCheck, | |
| 262 /* callback_private */ NULL, | |
| 263 /* tm_table */ default_translations, | |
| 264 /* query_geometry */ NULL, | |
| 265 }, | |
| 266 /* scrollbar_class fields */ | |
| 267 { | |
| 268 /* dummy_field */ 0, | |
| 269 }, | |
| 270 }; | |
| 271 | |
| 272 WidgetClass xlwScrollBarWidgetClass = (WidgetClass) &xlwScrollBarClassRec; | |
| 273 | |
| 274 /*-------------------------- Debug Functions ----------------------------*/ | |
| 275 | |
| 276 #ifdef SHOW_CLEAR | |
| 277 static void | |
| 278 myXClearArea(Display *dpy, Drawable d, int x, int y, int w, int h, | |
| 279 Boolean exp, XlwScrollBarWidget widget) | |
| 280 { | |
| 281 XFillRectangle (dpy, d, widget->sb.topShadowGC, x, y, w, h); | |
| 282 XSync (dpy, False); | |
| 283 sleep (2); | |
| 284 XClearArea (dpy, d, x, y, w, h, exp); | |
| 285 } | |
| 286 | |
| 287 #define XClearArea(dpy,win,x,y,width,height,exp) myXClearArea(dpy,win,x,y,width,height,exp,w) | |
| 288 #endif | |
| 289 | |
| 290 #ifdef CHECK_VALUES | |
| 291 static void | |
| 292 check(XlwScrollBarWidget w) | |
| 293 { | |
| 294 int height = widget_h (w); | |
| 295 if (w->sb.showArrows) | |
| 296 height -= (2 * arrow_h (w)); | |
| 297 | |
| 298 if ((w->sb.above + w->sb.ss + w->sb.below > height) || | |
| 299 (w->sb.value < w->sb.minimum) || | |
| 300 (w->sb.value > w->sb.maximum - w->sb.sliderSize)) | |
| 301 { | |
| 302 printf("above=%d ss=%d below=%d height=%d\n", | |
| 303 w->sb.above, w->sb.ss, w->sb.below, height); | |
| 304 printf("value=%d min=%d max=%d ss=%d max-ss=%d\n", | |
| 305 w->sb.value, w->sb.minimum, w->sb.maximum, | |
| 306 w->sb.sliderSize, w->sb.maximum - w->sb.sliderSize); | |
| 307 abort(); | |
| 308 } | |
| 309 } | |
| 310 | |
| 311 # define CHECK(w) check(w) | |
| 312 #else | |
| 313 # define CHECK(w) | |
| 314 #endif | |
| 315 | |
| 316 /*-------------------------- Static functions ---------------------------*/ | |
| 317 | |
| 318 static void | |
| 319 call_callbacks (XlwScrollBarWidget w, int reason, | |
| 320 int value, int pixel, XEvent *event) | |
| 321 { | |
| 322 XlwScrollBarCallbackStruct cbs; | |
| 323 Boolean called_anything; | |
| 324 | |
| 325 cbs.reason = reason; | |
| 326 cbs.event = event; | |
| 327 cbs.value = value; | |
| 328 cbs.pixel = pixel; | |
| 329 | |
| 330 called_anything = False; | |
| 331 | |
| 332 switch (reason) | |
| 333 { | |
| 334 case XmCR_VALUE_CHANGED: | |
| 335 XtCallCallbackList ((Widget) w, w->sb.valueChangedCBL, &cbs); | |
| 336 called_anything = True; | |
| 337 break; | |
| 338 case XmCR_INCREMENT: | |
| 339 if (w->sb.incrementCBL) | |
| 340 { | |
| 341 XtCallCallbackList ((Widget) w, w->sb.incrementCBL, &cbs); | |
| 342 called_anything = True; | |
| 343 } | |
| 344 break; | |
| 345 case XmCR_DECREMENT: | |
| 346 if (w->sb.decrementCBL) | |
| 347 { | |
| 348 XtCallCallbackList ((Widget) w, w->sb.decrementCBL, &cbs); | |
| 349 called_anything = True; | |
| 350 } | |
| 351 break; | |
| 352 case XmCR_PAGE_INCREMENT: | |
| 353 if (w->sb.incrementCBL) | |
| 354 { | |
| 355 XtCallCallbackList ((Widget) w, w->sb.pageIncrementCBL, &cbs); | |
| 356 called_anything = True; | |
| 357 } | |
| 358 break; | |
| 359 case XmCR_PAGE_DECREMENT: | |
| 360 if (w->sb.decrementCBL) | |
| 361 { | |
| 362 XtCallCallbackList ((Widget) w, w->sb.pageDecrementCBL, &cbs); | |
| 363 called_anything = True; | |
| 364 } | |
| 365 break; | |
| 366 case XmCR_TO_TOP: | |
| 367 if (w->sb.toTopCBL) | |
| 368 { | |
| 369 XtCallCallbackList ((Widget) w, w->sb.toTopCBL, &cbs); | |
| 370 called_anything = True; | |
| 371 } | |
| 372 break; | |
| 373 case XmCR_TO_BOTTOM: | |
| 374 if (w->sb.toBottomCBL) | |
| 375 { | |
| 376 XtCallCallbackList ((Widget) w, w->sb.toBottomCBL, &cbs); | |
| 377 called_anything = True; | |
| 378 } | |
| 379 break; | |
| 380 case XmCR_DRAG: | |
| 381 if (w->sb.dragCBL) | |
| 382 { | |
| 383 XtCallCallbackList ((Widget) w, w->sb.dragCBL, &cbs); | |
| 384 } | |
| 385 called_anything = True; /* Special Case */ | |
| 386 break; | |
| 387 } | |
| 388 | |
| 389 if (!called_anything) | |
| 390 { | |
| 391 cbs.reason = XmCR_VALUE_CHANGED; | |
| 392 XtCallCallbackList ((Widget) w, w->sb.valueChangedCBL, &cbs); | |
| 393 } | |
| 394 } | |
| 395 | |
| 396 /* Widget sizes minus the shadow and highlight area */ | |
| 397 | |
| 398 static int | |
| 399 widget_x (XlwScrollBarWidget w) | |
| 400 { | |
| 401 return w->sb.shadowThickness; | |
| 402 } | |
| 403 | |
| 404 static int | |
| 405 widget_y (XlwScrollBarWidget w) | |
| 406 { | |
| 407 return w->sb.shadowThickness; | |
| 408 } | |
| 409 | |
| 410 static int | |
| 411 widget_w (XlwScrollBarWidget w) | |
| 412 { | |
| 413 int x = w->sb.shadowThickness; | |
| 414 int width = (VERT (w) ? w->core.width : w->core.height) - (2 * x); | |
| 415 return width > 1 ? width : 1; | |
| 416 } | |
| 417 | |
| 418 static int | |
| 419 widget_h (XlwScrollBarWidget w) | |
| 420 { | |
| 421 int y = w->sb.shadowThickness; | |
| 422 int height = (VERT (w) ? w->core.height : w->core.width) - (2 * y); | |
| 423 | |
| 424 return height > 1 ? height : 1; | |
| 425 } | |
| 426 | |
| 427 static int | |
| 428 arrow_h (XlwScrollBarWidget w) | |
| 429 { | |
| 430 int width = widget_w (w); | |
| 431 int minimum_size = ((widget_h (w) - SS_MIN) / 2) - 1; | |
| 432 return minimum_size < width ? minimum_size : width; | |
| 433 } | |
| 434 | |
| 435 static int | |
| 436 event_x (XlwScrollBarWidget w, XEvent *event) | |
| 437 { | |
| 438 return VERT (w) ? event->xbutton.x : event->xbutton.y; | |
| 439 } | |
| 440 | |
| 441 static int | |
| 442 event_y (XlwScrollBarWidget w, XEvent *event) | |
| 443 { | |
| 444 return VERT (w) ? event->xbutton.y : event->xbutton.x; | |
| 445 } | |
| 446 | |
| 447 /* Safe addition and subtraction */ | |
| 448 static void | |
| 449 increment_value (XlwScrollBarWidget w, int diff) | |
| 450 { | |
| 451 w->sb.value = w->sb.maximum - diff < w->sb.value ? | |
| 452 w->sb.maximum : | |
| 453 w->sb.value + diff; | |
| 454 } | |
| 455 | |
| 456 static void | |
| 457 decrement_value (XlwScrollBarWidget w, int diff) | |
| 458 { | |
| 459 w->sb.value = w->sb.minimum + diff > w->sb.value ? | |
| 460 w->sb.minimum : | |
| 461 w->sb.value - diff; | |
| 462 } | |
| 463 | |
| 464 static SliderStyle | |
| 465 slider_style (XlwScrollBarWidget w) | |
| 466 { | |
| 467 return (w->sb.sliderStyle ? w->sb.sliderStyle[0] == 'd' : | |
| 468 w->sb.knobStyle ? w->sb.knobStyle[0] == 'd' : | |
| 469 0) ? | |
| 470 SLIDER_DIMPLE : | |
| 471 SLIDER_PLAIN; | |
| 472 } | |
| 473 | |
| 474 static Boolean | |
| 475 arrow_same_end (XlwScrollBarWidget w) | |
| 476 { | |
| 477 return w->sb.arrowPosition && w->sb.arrowPosition[0] == 's' ? True : False; | |
| 478 } | |
| 479 | |
| 480 /*-------------------------- GC and Pixel allocation --------------------*/ | |
| 481 #ifndef XmUNSPECIFIED_PIXMAP | |
| 482 #define XmUNSPECIFIED_PIXMAP 2 | |
| 483 #endif | |
| 484 | |
| 485 static GC | |
| 486 get_gc (XlwScrollBarWidget w, Pixel fg, Pixel bg, Pixmap pm) | |
| 487 { | |
| 488 XGCValues values; | |
| 489 XtGCMask mask; | |
| 490 | |
| 491 if (pm == w->sb.grayPixmap) | |
| 492 { | |
| 493 /* If we're using the gray pixmap, guarantee white on black ... | |
| 494 * otherwise, we could end up with something odd like grey on white | |
| 495 * when we're on a color display that ran out of color cells | |
| 496 */ | |
| 497 | |
| 498 fg = WhitePixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w))); | |
| 499 bg = BlackPixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w))); | |
| 500 } | |
| 501 | |
| 502 values.foreground = fg; | |
| 503 values.background = bg; | |
| 504 values.fill_style = FillOpaqueStippled; | |
| 505 values.stipple = pm; | |
| 506 /* mask = GCForeground | GCBackground | | |
| 507 (pm == None ? 0 : GCStipple | GCFillStyle); gtb */ | |
| 508 if (pm != None && pm != 0 && pm != XmUNSPECIFIED_PIXMAP) | |
| 509 values.stipple = pm; | |
| 510 else | |
| 511 values.stipple = None; | |
| 512 mask = GCForeground | GCBackground | | |
| 513 (values.stipple == None ? 0 : GCStipple | GCFillStyle); | |
| 514 | |
| 515 return XtGetGC((Widget) w, mask, &values); | |
| 516 } | |
| 517 | |
| 518 static void | |
| 519 make_shadow_pixels (XlwScrollBarWidget w) | |
| 520 { | |
| 3094 | 521 Display *dpy = XtDisplay ((Widget) w); |
| 428 | 522 Colormap cmap = w->core.colormap; |
| 523 XColor topc, botc; | |
| 524 int top_frobbed, bottom_frobbed; | |
| 525 Pixel bg, fg; | |
| 3094 | 526 Visual *visual; |
| 527 int ignored; | |
| 528 | |
| 529 visual_info_from_widget ((Widget) w, &visual, &ignored); | |
| 530 /* #### Apparently this is called before any shell has a visual? | |
| 531 or maybe the widget doesn't have a parent yet? */ | |
| 532 if (visual == CopyFromParent) | |
| 533 { | |
| 534 Screen *screen = DefaultScreenOfDisplay (dpy); | |
| 535 visual = DefaultVisualOfScreen (screen); | |
| 536 } | |
| 428 | 537 |
| 538 top_frobbed = bottom_frobbed = 0; | |
| 539 | |
| 540 bg = w->core.background_pixel; | |
| 541 fg = w->sb.foreground; | |
| 542 | |
| 543 if (w->sb.topShadowColor == (Pixel)~0) w->sb.topShadowColor = bg; | |
| 544 if (w->sb.bottomShadowColor == (Pixel)~0) w->sb.bottomShadowColor = fg; | |
| 545 | |
| 546 if (w->sb.topShadowColor == bg || w->sb.topShadowColor == fg) | |
| 547 { | |
| 548 topc.pixel = bg; | |
| 549 XQueryColor (dpy, cmap, &topc); | |
| 3094 | 550 /* #### can we use a (generalized) xft_convert_color here? */ |
| 428 | 551 /* don't overflow/wrap! */ |
| 552 topc.red = MINL(65535, topc.red * 1.2); | |
| 553 topc.green = MINL(65535, topc.green * 1.2); | |
| 554 topc.blue = MINL(65535, topc.blue * 1.2); | |
| 3094 | 555 if (x_allocate_nearest_color (dpy, cmap, visual, &topc)) |
| 428 | 556 { |
| 557 if (topc.pixel == bg) | |
| 558 { | |
| 559 XFreeColors (dpy, cmap, &topc.pixel, 1, 0); | |
| 560 topc.red = MINL(65535, topc.red + 0x8000); | |
| 561 topc.green = MINL(65535, topc.green + 0x8000); | |
| 562 topc.blue = MINL(65535, topc.blue + 0x8000); | |
| 3094 | 563 if (x_allocate_nearest_color (dpy, cmap, visual, &topc)) |
| 428 | 564 { |
| 565 w->sb.topShadowColor = topc.pixel; | |
| 566 } | |
| 567 } | |
| 568 else | |
| 569 { | |
| 570 w->sb.topShadowColor = topc.pixel; | |
| 571 } | |
| 572 | |
| 573 top_frobbed = 1; | |
| 574 } | |
| 575 } | |
| 576 | |
| 577 if (w->sb.bottomShadowColor == fg || w->sb.bottomShadowColor == bg) | |
| 578 { | |
| 579 botc.pixel = bg; | |
| 580 XQueryColor (dpy, cmap, &botc); | |
| 581 botc.red = (botc.red * 3) / 5; | |
| 582 botc.green = (botc.green * 3) / 5; | |
| 583 botc.blue = (botc.blue * 3) / 5; | |
| 3094 | 584 if (x_allocate_nearest_color (dpy, cmap, visual, &botc)) |
| 428 | 585 { |
| 586 if (botc.pixel == bg) | |
| 587 { | |
| 588 XFreeColors (dpy, cmap, &botc.pixel, 1, 0); | |
| 589 botc.red = MINL(65535, botc.red + 0x4000); | |
| 590 botc.green = MINL(65535, botc.green + 0x4000); | |
| 591 botc.blue = MINL(65535, botc.blue + 0x4000); | |
| 3094 | 592 if (x_allocate_nearest_color (dpy, cmap, visual, &botc)) |
| 428 | 593 { |
| 594 w->sb.bottomShadowColor = botc.pixel; | |
| 595 } | |
| 596 } | |
| 597 else | |
| 598 { | |
| 599 w->sb.bottomShadowColor = botc.pixel; | |
| 600 } | |
| 601 bottom_frobbed = 1; | |
| 602 } | |
| 603 } | |
| 604 | |
| 605 if (top_frobbed && bottom_frobbed) | |
| 606 { | |
| 607 int top_avg = ((topc.red / 3) + (topc.green / 3) + (topc.blue / 3)); | |
| 608 int bot_avg = ((botc.red / 3) + (botc.green / 3) + (botc.blue / 3)); | |
| 609 if (bot_avg > top_avg) | |
| 610 { | |
| 611 Pixel tmp = w->sb.topShadowColor; | |
| 612 w->sb.topShadowColor = w->sb.bottomShadowColor; | |
| 613 w->sb.bottomShadowColor = tmp; | |
| 614 } | |
| 615 else if (topc.pixel == botc.pixel) | |
| 616 { | |
| 617 if (botc.pixel == bg) | |
| 618 w->sb.topShadowColor = bg; | |
| 619 else | |
| 620 w->sb.bottomShadowColor = fg; | |
| 621 } | |
| 622 } | |
| 623 | |
| 624 if (w->sb.topShadowColor == w->core.background_pixel || | |
| 625 w->sb.bottomShadowColor == w->core.background_pixel) | |
| 626 { | |
| 627 /* Assume we're in mono. This code should be okay even if we're | |
| 628 * really in color but just short on color cells -- We want the | |
| 629 * following behavior, which has been empirically determined to | |
| 630 * work well for all fg/bg combinations in mono: If the trough | |
| 631 * and slider are BOTH black, then use a white top shadow and a | |
| 632 * grey bottom shadow, otherwise use a grey top shadow and a | |
| 633 * black bottom shadow. | |
| 634 */ | |
| 635 | |
| 636 Pixel white = WhitePixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w))); | |
| 637 Pixel black = BlackPixelOfScreen (DefaultScreenOfDisplay (XtDisplay (w))); | |
| 638 | |
| 639 /* Note: core.background_pixel is the color of the slider ... */ | |
| 640 | |
| 641 if (w->core.background_pixel == black && | |
| 642 w->sb.troughColor == black) | |
| 643 { | |
| 644 w->sb.topShadowColor = white; | |
| 645 w->sb.bottomShadowPixmap = w->sb.grayPixmap; | |
| 646 } else { | |
| 647 w->sb.topShadowPixmap = w->sb.grayPixmap; | |
| 648 w->sb.bottomShadowColor = black; | |
| 649 } | |
| 650 } | |
| 651 } | |
| 652 | |
| 653 static void | |
| 654 make_trough_pixel (XlwScrollBarWidget w) | |
| 655 { | |
| 656 Display *dpy = XtDisplay((Widget) w); | |
| 657 Colormap cmap = w->core.colormap; | |
| 658 XColor troughC; | |
| 3094 | 659 Visual *visual; |
| 660 int ignored; | |
| 661 | |
| 662 visual_info_from_widget ((Widget) w, &visual, &ignored); | |
| 663 /* #### Apparently this is called before any shell has a visual? | |
| 664 or maybe the widget doesn't have a parent yet? */ | |
| 665 if (visual == CopyFromParent) | |
| 666 { | |
| 667 Screen *screen = DefaultScreenOfDisplay (dpy); | |
| 668 visual = DefaultVisualOfScreen (screen); | |
| 669 } | |
| 428 | 670 |
| 671 if (w->sb.troughColor == (Pixel)~0) w->sb.troughColor = w->core.background_pixel; | |
| 672 | |
| 673 if (w->sb.troughColor == w->core.background_pixel) | |
| 674 { | |
| 675 troughC.pixel = w->core.background_pixel; | |
| 676 XQueryColor (dpy, cmap, &troughC); | |
| 677 troughC.red = (troughC.red * 4) / 5; | |
| 678 troughC.green = (troughC.green * 4) / 5; | |
| 679 troughC.blue = (troughC.blue * 4) / 5; | |
| 3094 | 680 if (x_allocate_nearest_color (dpy, cmap, visual, &troughC)) |
| 428 | 681 w->sb.troughColor = troughC.pixel; |
| 682 } | |
| 683 } | |
| 684 | |
| 685 /*-------------------------- Draw 3D Border -----------------------------*/ | |
| 686 static void | |
| 687 draw_shadows (Display *dpy, Drawable d, GC shine_gc, GC shadow_gc, | |
| 688 int x, int y, int width, int height, int shadowT) | |
| 689 { | |
| 690 XSegment shine[10], shadow[10]; | |
| 691 int i; | |
| 692 | |
| 693 if (shadowT > (width / 2)) shadowT = (width / 2); | |
| 694 if (shadowT > (height / 2)) shadowT = (height / 2); | |
| 695 if (shadowT <= 0) return; | |
| 696 | |
| 697 for (i = 0; i < shadowT; i++) | |
| 698 { | |
| 699 /* Top segments */ | |
| 700 shine[i].x1 = x; | |
| 701 shine[i].y2 = shine[i].y1 = y + i; | |
| 702 shine[i].x2 = x + width - i - 1; | |
| 703 /* Left segments */ | |
| 704 shine[i + shadowT].x2 = shine[i + shadowT].x1 = x + i; | |
| 705 shine[i + shadowT].y1 = y + shadowT; | |
| 706 shine[i + shadowT].y2 = y + height - i - 1; | |
| 707 | |
| 708 /* Bottom segments */ | |
| 709 shadow[i].x1 = x + i; | |
| 710 shadow[i].y2 = shadow[i].y1 = y + height - i - 1; | |
| 711 shadow[i].x2 = x + width - 1 ; | |
| 712 /* Right segments */ | |
| 713 shadow[i + shadowT].x2 = shadow[i + shadowT].x1 = x + width - i - 1; | |
| 714 shadow[i + shadowT].y1 = y + i + 1; | |
| 715 shadow[i + shadowT].y2 = y + height - 1 ; | |
| 716 } | |
| 717 | |
| 718 XDrawSegments (dpy, d, shine_gc, shine, shadowT * 2); | |
| 719 XDrawSegments (dpy, d, shadow_gc, shadow, shadowT * 2); | |
| 720 } | |
| 721 | |
| 722 /*------------------ Draw 3D Arrows: left, up, down, right --------------*/ | |
| 723 static int | |
| 724 make_vert_seg (XSegment *seg, int x1, int y1, int x2, int y2, int shadowT) | |
| 725 { | |
| 726 int i; | |
| 727 | |
| 728 for (i=0; i<shadowT; i++, seg++) | |
| 729 { | |
| 730 seg->x1 = x1; | |
| 731 seg->y1 = y1++; | |
| 732 seg->x2 = x2; | |
| 733 seg->y2 = y2++; | |
| 734 } | |
| 735 return shadowT; | |
| 736 } | |
| 737 | |
| 738 static int | |
| 739 make_hor_seg (XSegment *seg, int x1, int y1, int x2, int y2, int shadowT) | |
| 740 { | |
| 741 int i; | |
| 742 | |
| 743 for (i=0; i<shadowT; i++, seg++) | |
| 744 { | |
| 745 seg->x1 = x1++; | |
| 746 seg->y1 = y1; | |
| 747 seg->x2 = x2++; | |
| 748 seg->y2 = y2; | |
| 749 } | |
| 750 return shadowT; | |
| 751 } | |
| 752 | |
| 753 static void | |
| 754 draw_arrow_up (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC, | |
| 755 int x, int y, int width, int height, int shadowT) | |
| 756 { | |
| 757 XSegment shine[10], shadow[10]; | |
| 758 XPoint triangle[3]; | |
| 759 int mid; | |
| 760 | |
| 761 mid = width / 2; | |
| 762 | |
| 763 if (shadowT > (width / 2)) shadowT = (width / 2); | |
| 764 if (shadowT > (height / 2)) shadowT = (height / 2); | |
| 765 if (shadowT < 0) shadowT = 0; | |
| 766 | |
| 767 /* / */ | |
| 768 make_vert_seg (shine, | |
| 769 x, y + height - shadowT - 1, | |
| 770 x + mid, y, shadowT); | |
| 771 /* _\ */ | |
| 772 make_vert_seg (shadow, | |
| 773 x, y + height - shadowT - 1, | |
| 774 x + width - 1, y + height - shadowT - 1, shadowT); | |
| 775 make_vert_seg (shadow + shadowT, | |
| 776 x + mid, y, | |
| 777 x + width - 1, y + height - shadowT - 1, shadowT); | |
| 778 | |
| 779 triangle[0].x = x; | |
| 780 triangle[0].y = y + height - 1; | |
| 781 triangle[1].x = x + mid; | |
| 782 triangle[1].y = y; | |
| 783 triangle[2].x = x + width - 1; | |
| 784 triangle[2].y = y + height - 1; | |
| 785 | |
| 786 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord); | |
| 787 | |
| 788 XDrawSegments (dpy, win, shadowGC, shadow, shadowT * 2); | |
| 789 XDrawSegments (dpy, win, shineGC, shine, shadowT); | |
| 790 } | |
| 791 | |
| 792 static void | |
| 793 draw_arrow_left (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC, | |
| 794 int x, int y, int width, int height, int shadowT) | |
| 795 { | |
| 796 XSegment shine[10], shadow[10]; | |
| 797 XPoint triangle[3]; | |
| 798 | |
| 799 int mid = width / 2; | |
| 800 | |
| 801 if (shadowT > (width / 2)) shadowT = (width / 2); | |
| 802 if (shadowT > (height / 2)) shadowT = (height / 2); | |
| 803 if (shadowT < 0) shadowT = 0; | |
| 804 | |
| 805 /* / */ | |
| 806 make_hor_seg (shine, | |
| 807 x, y + mid, | |
| 808 x + width - shadowT - 1, y, shadowT); | |
| 809 /* \| */ | |
| 810 make_hor_seg (shadow, | |
| 811 x, y + mid, | |
| 812 x + width - shadowT - 1, y + height - 1, shadowT); | |
| 813 make_hor_seg (shadow + shadowT, | |
| 814 x + width - shadowT - 1, y, | |
| 815 x + width - shadowT - 1, y + height - 1, shadowT); | |
| 816 | |
| 817 triangle[0].x = x + width - 1; | |
| 818 triangle[0].y = y + height - 1; | |
| 819 triangle[1].x = x; | |
| 820 triangle[1].y = y + mid; | |
| 821 triangle[2].x = x + width - 1; | |
| 822 triangle[2].y = y; | |
| 823 | |
| 824 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord); | |
| 825 | |
| 826 XDrawSegments (dpy, win, shadowGC, shadow, shadowT * 2); | |
| 827 XDrawSegments (dpy, win, shineGC, shine, shadowT); | |
| 828 } | |
| 829 | |
| 830 static void | |
| 831 draw_arrow_down (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC, | |
| 832 int x, int y, int width, int height, int shadowT) | |
| 833 { | |
| 834 XSegment shine[10], shadow[10]; | |
| 835 XPoint triangle[3]; | |
| 836 int mid; | |
| 837 | |
| 838 mid = width / 2; | |
| 839 | |
| 840 if (shadowT > (width / 2)) shadowT = (width / 2); | |
| 841 if (shadowT > (height / 2)) shadowT = (height / 2); | |
| 842 if (shadowT < 0) shadowT = 0; | |
| 843 | |
| 844 /* \- */ | |
| 845 make_vert_seg (shine, | |
| 846 x, y, | |
| 847 x + mid, y + height - shadowT - 1, shadowT); | |
| 848 make_vert_seg (shine + shadowT, | |
| 849 x, y, | |
| 850 x + width - 1, y, shadowT); | |
| 851 /* / */ | |
| 852 make_vert_seg (shadow, | |
| 853 x + width - 1, y, | |
| 854 x + mid, y + height - shadowT - 1, shadowT); | |
| 855 | |
| 856 triangle[0].x = x; | |
| 857 triangle[0].y = y; | |
| 858 triangle[1].x = x + mid; | |
| 859 triangle[1].y = y + height - 1; | |
| 860 triangle[2].x = x + width - 1; | |
| 861 triangle[2].y = y; | |
| 862 | |
| 863 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord); | |
| 864 | |
| 865 XDrawSegments (dpy, win, shadowGC, shadow, shadowT); | |
| 866 XDrawSegments (dpy, win, shineGC, shine, shadowT * 2); | |
| 867 } | |
| 868 | |
| 869 static void | |
| 870 draw_arrow_right (Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC, | |
| 871 int x, int y, int width, int height, int shadowT) | |
| 872 { | |
| 873 XSegment shine[10], shadow[10]; | |
| 874 XPoint triangle[3]; | |
| 875 int mid; | |
| 876 | |
| 877 mid = width / 2; | |
| 878 | |
| 879 if (shadowT > (width / 2)) shadowT = (width / 2); | |
| 880 if (shadowT > (height / 2)) shadowT = (height / 2); | |
| 881 if (shadowT < 0) shadowT = 0; | |
| 882 | |
| 883 /* |\ */ | |
| 884 make_hor_seg (shine, | |
| 885 x, y, | |
| 886 x + width - shadowT - 1, y + mid, shadowT); | |
| 887 make_hor_seg (shine + shadowT, | |
| 888 x, y, | |
| 889 x, y + height - 1, shadowT); | |
| 890 /* / */ | |
| 891 make_hor_seg (shadow, | |
| 892 x, y + height - 1, | |
| 893 x + width - shadowT - 1, y + mid, shadowT); | |
| 894 | |
| 895 triangle[0].x = x + 1; | |
| 896 triangle[0].y = y + height - 1; | |
| 897 triangle[1].x = x + width - 1; | |
| 898 triangle[1].y = y + mid; | |
| 899 triangle[2].x = x + 1; | |
| 900 triangle[2].y = y; | |
| 901 | |
| 902 XFillPolygon (dpy, win, bgGC, triangle, 3, Convex, ArcChord); | |
| 903 | |
| 904 XDrawSegments (dpy, win, shadowGC, shadow, shadowT); | |
| 905 XDrawSegments (dpy, win, shineGC, shine, shadowT * 2); | |
| 906 } | |
| 907 | |
| 908 static void | |
| 909 draw_dimple (Display *dpy, Drawable win, GC shine, GC shadow, | |
| 910 int x, int y, int width, int height) | |
| 911 { | |
| 912 XDrawArc (dpy, win, shine, x, y, width, height, 46*64, 180*64); | |
| 913 XDrawArc (dpy, win, shadow, x, y, width, height, 45*64, -179*64); | |
| 914 } | |
| 915 | |
| 916 /*------- Scrollbar values -> pixels, pixels -> scrollbar values --------*/ | |
| 917 | |
| 918 static void | |
| 919 seg_pixel_sizes (XlwScrollBarWidget w, int *above_return, | |
| 920 int *ss_return, int *below_return) | |
| 921 { | |
| 922 float total, height, fuz; | |
| 923 int value, above, ss, below; | |
| 924 | |
| 925 height = widget_h (w); | |
| 926 if (w->sb.showArrows) height -= (2 * arrow_h (w)); | |
| 927 | |
| 928 value = w->sb.value - w->sb.minimum; | |
| 929 | |
| 930 total = w->sb.maximum - w->sb.minimum; | |
| 931 fuz = total / 2; | |
| 932 | |
| 933 ss = (int) ((height * w->sb.sliderSize + fuz) / total); | |
| 934 above = (int) ((height * value + fuz) / total); | |
| 935 below = (int) ((height) - (ss + above)); | |
| 936 | |
| 937 /* Don't let slider get smaller than SS_MIN */ | |
| 938 if (ss < SS_MIN) | |
| 939 { | |
| 940 /* add a percent amount for integer rounding */ | |
| 434 | 941 float tmp = (((float) (SS_MIN - ss) * (float) value) / total) + 0.5; |
| 428 | 942 |
| 943 above -= (int) tmp; | |
| 944 ss = SS_MIN; | |
| 945 below = (int) ((height) - (ss + above)); | |
| 946 | |
| 947 if (above < 0) | |
| 948 { | |
| 949 above = 0; | |
| 950 below = (int) (height - ss); | |
| 951 } | |
| 952 if (below < 0) | |
| 953 { | |
| 954 above = (int) (height - ss); | |
| 955 below = 0; | |
| 956 } | |
| 957 if (ss > height) | |
| 958 { | |
| 959 above = 0; | |
| 960 ss = (int) height; | |
| 961 below = 0; | |
| 962 } | |
| 963 } | |
| 964 | |
| 965 *above_return = above; | |
| 966 *ss_return = ss; | |
| 967 *below_return = below; | |
| 968 | |
| 969 CHECK (w); | |
| 970 } | |
| 971 | |
| 972 static void | |
| 973 verify_values (XlwScrollBarWidget w) | |
| 974 { | |
| 975 int total = w->sb.maximum - w->sb.minimum; | |
| 976 | |
| 977 if (w->sb.sliderSize > total) | |
| 978 w->sb.sliderSize = total; | |
| 979 | |
| 980 if (w->sb.pageIncrement > total) | |
| 981 w->sb.pageIncrement = total; | |
| 982 | |
| 983 if (w->sb.increment > total) | |
| 984 w->sb.increment = total; | |
| 985 | |
| 986 if (w->sb.value < w->sb.minimum) | |
| 987 w->sb.value = w->sb.minimum; | |
| 988 | |
| 989 if (w->sb.value > w->sb.maximum) | |
| 990 w->sb.value = w->sb.maximum; | |
| 991 | |
| 992 if (w->sb.sliderSize > w->sb.maximum - w->sb.value) | |
| 993 w->sb.sliderSize = w->sb.maximum - w->sb.value; | |
| 994 } | |
| 995 | |
| 996 static int | |
| 997 value_from_pixel (XlwScrollBarWidget w, int above) | |
| 998 { | |
| 999 float total, height, fuz; | |
| 1000 int value, ss; | |
| 1001 | |
| 1002 height = widget_h (w); | |
| 1003 if (w->sb.showArrows) | |
| 1004 height -= (2 * arrow_h (w)); | |
| 1005 | |
| 1006 total = w->sb.maximum - w->sb.minimum; | |
| 1007 fuz = height / 2; | |
| 1008 | |
| 1009 ss = (int) ((height * w->sb.sliderSize + (total / 2)) / total); | |
| 1010 | |
| 1011 if (ss < SS_MIN) | |
| 1012 { | |
| 1013 /* add a percent amount for integer rounding */ | |
| 1014 above += (int) ((((SS_MIN - ss) * above) + fuz) / height); | |
| 1015 } | |
| 1016 | |
| 1017 { | |
| 1018 /* Prevent SIGFPE's that would occur if we don't truncate the value. */ | |
| 1019 float floatval = w->sb.minimum + ((float)(above * total + fuz) / height); | |
| 1020 if (floatval >= (float) INT_MAX) | |
| 1021 value = INT_MAX; | |
| 1022 else if (floatval <= (float) INT_MIN) | |
| 1023 value = INT_MIN; | |
| 1024 else | |
| 1025 value = (int) floatval; | |
| 1026 } | |
| 1027 | |
| 1028 return value; | |
| 1029 } | |
| 1030 | |
| 1031 | |
| 1032 static void | |
| 1033 redraw_dimple (XlwScrollBarWidget w, Display *dpy, Window win, | |
| 1034 int x, int y, int width, int height) | |
| 1035 { | |
| 1036 if (SLIDER_DIMPLE == slider_style (w)) | |
| 1037 { | |
| 1038 int size; | |
| 1039 int slider_p = (w->sb.armed == ARM_SLIDER); | |
| 1040 GC shine = slider_p ? w->sb.bottomShadowGC : w->sb.topShadowGC; | |
| 1041 GC shadow = slider_p ? w->sb.topShadowGC : w->sb.bottomShadowGC; | |
| 1042 int shadowT = w->sb.shadowThickness; | |
| 1043 | |
| 1044 x += shadowT; | |
| 1045 y += shadowT; | |
| 1046 width -= 2*shadowT; | |
| 1047 height -= 2*shadowT; | |
| 1048 | |
| 1049 size = (width < height ? width : height) * 3 / 4; | |
| 1050 | |
| 1051 if (size%2 != (width < height ? width : height)%2) size--; | |
| 1052 | |
| 1053 DBUG (fprintf (stderr, "%d %d\n", | |
| 1054 x + (width / 2) - (size / 2) - 2*shadowT, | |
| 1055 width - size - shadowT)); | |
| 1056 | |
| 1057 draw_dimple (dpy, win, shine, shadow, | |
| 1058 x + (width / 2) - (size / 2), | |
| 1059 y + (height / 2) - (size / 2), | |
| 1060 size, size); | |
| 1061 } | |
| 1062 } | |
| 1063 | |
| 1064 static void | |
| 1065 draw_slider (XlwScrollBarWidget w, int above, int ss, int below) | |
| 1066 { | |
| 1067 Display *dpy = XtDisplay ((Widget) w); | |
| 1068 Window win = XtWindow ((Widget) w); | |
| 1069 | |
| 1070 int x = widget_x (w); | |
| 1071 int y = widget_y (w); | |
| 1072 int width = widget_w (w); | |
| 1073 int height = widget_h (w); | |
| 1074 int shadowT = w->sb.shadowThickness; | |
| 1075 int vert_p = VERT (w); | |
| 1076 | |
| 1077 if (shadowT > (width / 2)) shadowT = (width / 2); | |
| 1078 if (shadowT > (height / 2)) shadowT = (height / 2); | |
| 1079 if (shadowT < 0) shadowT = 0; | |
| 1080 | |
| 1081 if (w->sb.showArrows && !arrow_same_end (w)) | |
| 1082 y += arrow_h (w); | |
| 1083 | |
| 1084 /* trough above slider */ | |
| 1085 if (above > 0) | |
| 1086 { | |
| 1087 if (vert_p) | |
| 1088 XClearArea (dpy, win, x, y, width, above, False); | |
| 1089 else | |
| 1090 XClearArea (dpy, win, y, x, above, width, False); | |
| 1091 } | |
| 1092 | |
| 1093 /* slider */ | |
| 1094 if (vert_p) | |
| 1095 { | |
| 1096 draw_shadows (dpy, win, w->sb.topShadowGC, w->sb.bottomShadowGC, | |
| 1097 x, y + above, width, ss, shadowT); | |
| 1098 XFillRectangle (dpy, win, w->sb.backgroundGC, | |
| 1099 x+shadowT, y + above + shadowT, | |
| 1100 width-2*shadowT, ss-2*shadowT); | |
| 1101 redraw_dimple (w, dpy, win, x, y + above, width, ss); | |
| 1102 } | |
| 1103 else | |
| 1104 { | |
| 1105 draw_shadows (dpy, win, w->sb.topShadowGC, w->sb.bottomShadowGC, | |
| 1106 y + above, x, ss, width, shadowT); | |
| 1107 XFillRectangle (dpy, win, w->sb.backgroundGC, | |
| 1108 y + above + shadowT, x+shadowT, | |
| 1109 ss-2*shadowT, width-2*shadowT); | |
| 1110 redraw_dimple (w, dpy, win, y + above, x, ss, width); | |
| 1111 } | |
| 1112 | |
| 1113 /* trough below slider */ | |
| 1114 if (below > 0) | |
| 1115 { | |
| 1116 if (vert_p) | |
| 1117 XClearArea (dpy, win, x, y + above + ss, width, below, False); | |
| 1118 else | |
| 1119 XClearArea (dpy, win, y + above + ss, x, below, width, False); | |
| 1120 } | |
| 1121 | |
| 1122 CHECK (w); | |
| 1123 } | |
| 1124 | |
| 1125 static void | |
| 1126 redraw_up_arrow (XlwScrollBarWidget w, Boolean armed, Boolean clear_behind) | |
| 1127 { | |
| 1128 Display *dpy = XtDisplay ((Widget) w); | |
| 1129 Window win = XtWindow ((Widget) w); | |
| 1130 | |
| 1131 int x = widget_x (w); | |
| 1132 int y = widget_y (w); | |
| 1133 int width = widget_w (w); | |
| 1134 int height = widget_h (w); | |
| 1135 int shadowT = w->sb.shadowThickness; | |
| 1136 int arrow_height = arrow_h (w); | |
| 1137 | |
| 1138 GC bg = w->sb.backgroundGC; | |
| 1139 GC shine = armed ? w->sb.bottomShadowGC : w->sb.topShadowGC; | |
| 1140 GC shadow = armed ? w->sb.topShadowGC : w->sb.bottomShadowGC; | |
| 1141 | |
| 1142 if (VERT (w)) | |
| 1143 { | |
| 1144 if (arrow_same_end (w)) | |
| 1145 y += height - 2 * arrow_height; | |
| 1146 if (clear_behind) | |
| 1147 XClearArea (dpy, win, x, y, width, arrow_height + 1, False); | |
| 1148 draw_arrow_up (dpy, win, bg, shine, shadow, | |
| 1149 x + (width - arrow_height)/2, y, | |
| 1150 arrow_height, arrow_height, shadowT); | |
| 1151 } | |
| 1152 else | |
| 1153 { | |
| 1154 if (arrow_same_end (w)) | |
| 1155 y += height - 2 * arrow_height; | |
| 1156 if (clear_behind) | |
| 1157 XClearArea (dpy, win, y, x, arrow_height + 1, height, False); | |
| 1158 draw_arrow_left (dpy, win, bg, shine, shadow, | |
| 1159 y, x + (width - arrow_height)/2, | |
| 1160 arrow_height, arrow_height, shadowT); | |
| 1161 } | |
| 1162 } | |
| 1163 | |
| 1164 static void | |
| 1165 redraw_down_arrow (XlwScrollBarWidget w, Boolean armed, Boolean clear_behind) | |
| 1166 { | |
| 1167 Display *dpy = XtDisplay ((Widget) w); | |
| 1168 Window win = XtWindow ((Widget) w); | |
| 1169 | |
| 1170 int x = widget_x (w); | |
| 1171 int y = widget_y (w); | |
| 1172 int width = widget_w (w); | |
| 1173 int height = widget_h (w); | |
| 1174 int shadowT = w->sb.shadowThickness; | |
| 1175 int arrow_height = arrow_h (w); | |
| 1176 | |
| 1177 GC bg = w->sb.backgroundGC; | |
| 1178 GC shine = armed ? w->sb.bottomShadowGC : w->sb.topShadowGC; | |
| 1179 GC shadow = armed ? w->sb.topShadowGC : w->sb.bottomShadowGC; | |
| 1180 | |
| 1181 if (VERT (w)) | |
| 1182 { | |
| 1183 if (clear_behind) | |
| 1184 XClearArea (dpy, win, x, y + height - arrow_height, width, | |
| 1185 arrow_height + 1, False); | |
| 1186 draw_arrow_down (dpy, win, bg, shine, shadow, | |
| 1187 x + (width - arrow_height)/2, | |
| 1188 y + height - arrow_height + 1, | |
| 1189 arrow_height, arrow_height, shadowT); | |
| 1190 } | |
| 1191 else | |
| 1192 { | |
| 1193 if (clear_behind) | |
| 1194 XClearArea (dpy, win, y + height - arrow_height, x, | |
| 1195 arrow_height + 1, height, False); | |
| 1196 draw_arrow_right (dpy, win, bg, shine, shadow, | |
| 1197 y + height - arrow_height + 1, | |
| 1198 x + (width - arrow_height)/2, | |
| 1199 arrow_height, arrow_height, shadowT); | |
| 1200 } | |
| 1201 } | |
| 1202 | |
| 1203 static void | |
| 1204 redraw_everything (XlwScrollBarWidget w, Region region, Boolean behind_arrows) | |
| 1205 { | |
| 1206 Display *dpy = XtDisplay ((Widget) w); | |
| 1207 Window win = XtWindow ((Widget) w); | |
| 1208 | |
| 1209 if (w->sb.showArrows) | |
| 1210 { | |
| 1211 if (region == NULL) | |
| 1212 { | |
| 1213 redraw_up_arrow (w, False, behind_arrows); | |
| 1214 redraw_down_arrow (w, False, behind_arrows); | |
| 1215 } | |
| 1216 else | |
| 1217 { | |
| 1218 int x = widget_x (w); | |
| 1219 int y = widget_y (w); | |
| 1220 int width = widget_w (w); | |
| 1221 int height = widget_h (w); | |
| 1222 int arrow_height = arrow_h (w); | |
| 1223 int ax = x, ay = y; | |
| 1224 | |
| 1225 if (arrow_same_end (w)) | |
| 1226 { | |
| 1227 if (VERT (w)) | |
| 1228 ay = y + height - arrow_height - arrow_height; | |
| 1229 else | |
| 1230 ax = x + height - arrow_height - arrow_height; | |
| 1231 } | |
| 1232 if (XRectInRegion (region, ax, ay, width, width)) | |
| 1233 redraw_up_arrow (w, False, behind_arrows); | |
| 1234 | |
| 1235 if (VERT (w)) | |
| 1236 ay = y + height - arrow_height; | |
| 1237 else | |
| 1238 ax = x + height - arrow_height; | |
| 1239 if (XRectInRegion (region, ax, ay, width, width)) | |
| 1240 redraw_down_arrow (w, False, behind_arrows); | |
| 1241 } | |
| 1242 } | |
| 1243 | |
| 1244 draw_shadows (dpy, win, w->sb.bottomShadowGC, w->sb.topShadowGC, 0, 0, | |
| 1245 w->core.width, w->core.height, w->sb.shadowThickness); | |
| 1246 | |
| 1247 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below); | |
| 1248 } | |
| 1249 | |
| 1250 /*-------------------------- Method Functions ---------------------------*/ | |
| 1251 | |
| 1252 static void | |
| 2286 | 1253 Initialize (Widget treq, Widget tnew, ArgList UNUSED (args), |
| 1254 Cardinal *UNUSED (num_args)) | |
| 428 | 1255 { |
| 1256 XlwScrollBarWidget request = (XlwScrollBarWidget) treq; | |
| 1257 XlwScrollBarWidget w = (XlwScrollBarWidget) tnew; | |
| 1258 Display *dpy = XtDisplay ((Widget) w); | |
| 1259 Window win = RootWindowOfScreen (DefaultScreenOfDisplay (dpy)); | |
| 1260 | |
| 1261 if (request->core.width == 0) w->core.width += (VERT (w) ? 12 : 25); | |
| 1262 if (request->core.height == 0) w->core.height += (VERT (w) ? 25 : 12); | |
| 1263 | |
| 1264 verify_values (w); | |
| 1265 | |
| 1266 w->sb.lastY = 0; | |
| 1267 w->sb.above = 0; | |
| 1268 w->sb.ss = 0; | |
| 1269 w->sb.below = 0; | |
| 1270 w->sb.armed = ARM_NONE; | |
| 1271 w->sb.forced_scroll = FORCED_SCROLL_NONE; | |
| 1272 | |
| 1273 if (w->sb.shadowThickness > 5) w->sb.shadowThickness = 5; | |
| 1274 | |
| 1275 w->sb.grayPixmap = | |
| 1276 XCreatePixmapFromBitmapData (dpy, win, (char *) gray_bits, gray_width, | |
| 1277 gray_height, 1, 0, 1); | |
| 1278 | |
| 1279 make_trough_pixel (w); | |
| 1280 | |
| 1281 make_shadow_pixels (w); | |
| 1282 | |
| 1283 w->sb.backgroundGC = | |
| 1284 get_gc (w, w->core.background_pixel, w->core.background_pixel, None); | |
| 1285 w->sb.topShadowGC = | |
| 1286 get_gc (w, w->sb.topShadowColor, w->core.background_pixel, | |
| 1287 w->sb.topShadowPixmap); | |
| 1288 w->sb.bottomShadowGC = | |
| 1289 get_gc (w, w->sb.bottomShadowColor, w->core.background_pixel, | |
| 1290 w->sb.bottomShadowPixmap); | |
| 1291 | |
| 1292 w->sb.fullRedrawNext = True; | |
| 1293 | |
| 1294 w->sb.timerActive = False; | |
| 1295 } | |
| 1296 | |
| 1297 static void | |
| 1298 Destroy (Widget widget) | |
| 1299 { | |
| 1300 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1301 Display *dpy = XtDisplay ((Widget) w); | |
| 1302 | |
| 1303 XtReleaseGC (widget, w->sb.bottomShadowGC); | |
| 1304 XtReleaseGC (widget, w->sb.topShadowGC); | |
| 1305 XtReleaseGC (widget, w->sb.backgroundGC); | |
| 1306 | |
| 1307 XFreePixmap (dpy, w->sb.grayPixmap); | |
| 1308 | |
| 1309 if (w->sb.timerActive) | |
| 1310 { | |
| 1311 XtRemoveTimeOut (w->sb.timerId); | |
| 1312 w->sb.timerActive = False; /* Should be a no-op, but you never know */ | |
| 1313 } | |
| 1314 } | |
| 1315 | |
| 1316 static void | |
| 1317 Realize (Widget widget, XtValueMask *valuemask, XSetWindowAttributes *attr) | |
| 1318 { | |
| 1319 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1320 Display *dpy = XtDisplay ((Widget) w); | |
| 1321 Window win; | |
| 1322 XSetWindowAttributes win_attr; | |
| 1323 | |
| 1324 (*coreClassRec.core_class.realize)(widget, valuemask, attr); | |
| 1325 | |
| 1326 win = XtWindow ((Widget) w); | |
| 1327 | |
| 1328 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below); | |
| 1329 | |
| 1330 XSetWindowBackground (dpy, win, w->sb.troughColor); | |
| 1331 | |
| 1332 /* Change bit gravity so widget is not cleared on resize */ | |
| 1333 win_attr.bit_gravity = NorthWestGravity; | |
| 1334 XChangeWindowAttributes (dpy, win, CWBitGravity , &win_attr); | |
| 1335 | |
| 1336 } | |
| 1337 | |
| 1338 static void | |
| 1339 Resize (Widget widget) | |
| 1340 { | |
| 1341 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1342 Display *dpy = XtDisplay ((Widget) w); | |
| 1343 Window win = XtWindow ((Widget) w); | |
| 1344 | |
| 1345 if (XtIsRealized (widget)) | |
| 1346 { | |
| 1347 DBUG (fprintf (stderr, "Resize = %08lx\n", w)); | |
| 1348 | |
| 1349 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below); | |
| 1350 | |
| 1351 /* redraw_everything (w, NULL, True); */ | |
| 1352 | |
| 1353 w->sb.fullRedrawNext = True; | |
| 1354 /* Force expose event */ | |
| 1355 XClearArea (dpy, win, widget_x (w), widget_y (w), 1, 1, True); | |
| 1356 } | |
| 1357 | |
| 1358 if (w->sb.timerActive) | |
| 1359 { | |
| 1360 XtRemoveTimeOut (w->sb.timerId); | |
| 1361 w->sb.timerActive = False; | |
| 1362 } | |
| 1363 } | |
| 1364 | |
| 1365 static void | |
| 2286 | 1366 Redisplay (Widget widget, XEvent *UNUSED (event), Region region) |
| 428 | 1367 { |
| 1368 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1369 | |
| 1370 DBUG (fprintf (stderr, "Redisplay = %08lx\n", w)); | |
| 1371 | |
| 1372 if (XtIsRealized (widget)) | |
| 1373 { | |
| 1374 if (w->sb.fullRedrawNext) | |
| 1375 redraw_everything (w, NULL, True); | |
| 1376 else | |
| 1377 redraw_everything (w, region, False); | |
| 1378 w->sb.fullRedrawNext = False; | |
| 1379 } | |
| 1380 } | |
| 1381 | |
| 1382 static Boolean | |
| 2286 | 1383 SetValues (Widget current, Widget UNUSED (request), Widget neww, |
| 1384 ArgList UNUSED (args), Cardinal *UNUSED (num_args)) | |
| 428 | 1385 { |
| 1386 XlwScrollBarWidget cur = (XlwScrollBarWidget) current; | |
| 1387 XlwScrollBarWidget w = (XlwScrollBarWidget) neww; | |
| 1388 Boolean do_redisplay = False; | |
| 1389 | |
| 1390 if (cur->sb.troughColor != w->sb.troughColor) | |
| 1391 { | |
| 1392 if (XtIsRealized ((Widget) w)) | |
| 1393 { | |
| 1394 XSetWindowBackground (XtDisplay((Widget) w), XtWindow ((Widget) w), | |
| 1395 w->sb.troughColor); | |
| 1396 do_redisplay = True; | |
| 1397 } | |
| 1398 } | |
| 1399 | |
| 1400 if (cur->core.background_pixel != w->core.background_pixel) | |
| 1401 { | |
| 1402 XtReleaseGC ((Widget)cur, cur->sb.backgroundGC); | |
| 1403 w->sb.backgroundGC = | |
| 1404 get_gc (w, w->core.background_pixel, w->core.background_pixel, None); | |
| 1405 do_redisplay = True; | |
| 1406 } | |
| 1407 | |
| 1408 if (cur->sb.topShadowColor != w->sb.topShadowColor || | |
| 1409 cur->sb.topShadowPixmap != w->sb.topShadowPixmap) | |
| 1410 { | |
| 1411 XtReleaseGC ((Widget)cur, cur->sb.topShadowGC); | |
| 1412 w->sb.topShadowGC = | |
| 1413 get_gc (w, w->sb.topShadowColor, w->core.background_pixel, | |
| 1414 w->sb.topShadowPixmap); | |
| 1415 do_redisplay = True; | |
| 1416 } | |
| 1417 | |
| 1418 if (cur->sb.bottomShadowColor != w->sb.bottomShadowColor || | |
| 1419 cur->sb.bottomShadowPixmap != w->sb.bottomShadowPixmap) | |
| 1420 { | |
| 1421 XtReleaseGC ((Widget)cur, cur->sb.bottomShadowGC); | |
| 1422 w->sb.bottomShadowGC = | |
| 1423 get_gc (w, w->sb.bottomShadowColor, w->core.background_pixel, | |
| 1424 w->sb.bottomShadowPixmap); | |
| 1425 do_redisplay = True; | |
| 1426 } | |
| 1427 | |
| 1428 if (cur->sb.orientation != w->sb.orientation) | |
| 1429 do_redisplay = True; | |
| 1430 | |
| 1431 | |
| 1432 if (cur->sb.minimum != w->sb.minimum || | |
| 1433 cur->sb.maximum != w->sb.maximum || | |
| 1434 cur->sb.sliderSize != w->sb.sliderSize || | |
| 1435 cur->sb.value != w->sb.value || | |
| 1436 cur->sb.pageIncrement != w->sb.pageIncrement || | |
| 1437 cur->sb.increment != w->sb.increment) | |
| 1438 { | |
| 1439 verify_values (w); | |
| 1440 if (XtIsRealized ((Widget) w)) | |
| 1441 { | |
| 1442 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below); | |
| 1443 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below); | |
| 1444 } | |
| 1445 } | |
| 1446 | |
| 1447 if (w->sb.shadowThickness > 5) w->sb.shadowThickness = 5; | |
| 1448 | |
| 1449 return do_redisplay; | |
| 1450 } | |
| 1451 | |
| 1452 void | |
| 1453 XlwScrollBarGetValues (Widget widget, int *value, int *sliderSize, | |
| 1454 int *increment, int *pageIncrement) | |
| 1455 { | |
| 1456 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1457 | |
| 1458 if (w && XtClass ((Widget) w) == xlwScrollBarWidgetClass) | |
| 1459 { | |
| 1460 if (value) *value = w->sb.value; | |
| 1461 if (sliderSize) *sliderSize = w->sb.sliderSize; | |
| 1462 if (increment) *increment = w->sb.increment; | |
| 1463 if (pageIncrement) *pageIncrement = w->sb.pageIncrement; | |
| 1464 } | |
| 1465 } | |
| 1466 | |
| 1467 void | |
| 1468 XlwScrollBarSetValues (Widget widget, int value, int sliderSize, | |
| 1469 int increment, int pageIncrement, Boolean notify) | |
| 1470 { | |
| 1471 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1472 | |
| 1473 if (w && XtClass ((Widget) w) == xlwScrollBarWidgetClass && | |
| 1474 (w->sb.value != value || | |
| 1475 w->sb.sliderSize != sliderSize || | |
| 1476 w->sb.increment != increment || | |
| 1477 w->sb.pageIncrement != pageIncrement)) | |
| 1478 { | |
| 1479 int last_value = w->sb.value; | |
| 1480 | |
| 1481 w->sb.value = value; | |
| 1482 w->sb.sliderSize = sliderSize; | |
| 1483 w->sb.increment = increment; | |
| 1484 w->sb.pageIncrement = pageIncrement; | |
| 1485 | |
| 1486 verify_values (w); | |
| 1487 | |
| 1488 if (XtIsRealized (widget)) | |
| 1489 { | |
| 1490 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below); | |
| 1491 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below); | |
| 1492 | |
| 1493 if (w->sb.value != last_value && notify) | |
| 1494 call_callbacks (w, XmCR_VALUE_CHANGED, w->sb.value, 0, NULL); | |
| 1495 } | |
| 1496 } | |
| 1497 } | |
| 1498 | |
| 1499 /*-------------------------- Action Functions ---------------------------*/ | |
| 1500 | |
| 1501 static void | |
| 2286 | 1502 timer (XtPointer data, XtIntervalId *UNUSED (id)) |
| 428 | 1503 { |
| 1504 XlwScrollBarWidget w = (XlwScrollBarWidget) data; | |
| 1505 w->sb.timerActive = False; | |
| 1506 | |
| 1507 if (w->sb.armed != ARM_NONE) | |
| 1508 { | |
| 1509 int last_value = w->sb.value; | |
| 1510 int reason; | |
| 1511 | |
| 1512 switch (w->sb.armed) | |
| 1513 { | |
| 1514 case ARM_PAGEUP: | |
| 1515 decrement_value (w, w->sb.pageIncrement); | |
| 1516 reason = XmCR_PAGE_DECREMENT; | |
| 1517 break; | |
| 1518 case ARM_PAGEDOWN: | |
| 1519 increment_value (w, w->sb.pageIncrement); | |
| 1520 reason = XmCR_PAGE_INCREMENT; | |
| 1521 break; | |
| 1522 case ARM_UP: | |
| 1523 decrement_value (w, w->sb.increment); | |
| 1524 reason = XmCR_DECREMENT; | |
| 1525 break; | |
| 1526 case ARM_DOWN: | |
| 1527 increment_value (w, w->sb.increment); | |
| 1528 reason = XmCR_INCREMENT; | |
| 1529 break; | |
| 1530 default: | |
| 1531 reason = XmCR_NONE; | |
| 1532 } | |
| 1533 | |
| 1534 verify_values (w); | |
| 1535 | |
| 1536 if (last_value != w->sb.value) | |
| 1537 { | |
| 1538 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below); | |
| 1539 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below); | |
| 1540 | |
| 1541 call_callbacks (w, reason, w->sb.value, 0, NULL); | |
| 1542 | |
| 1543 w->sb.timerId = | |
| 1544 XtAppAddTimeOut (XtWidgetToApplicationContext ((Widget) w), | |
| 1545 (unsigned long) w->sb.repeatDelay, | |
| 1546 timer, (XtPointer) w); | |
| 1547 w->sb.timerActive = True; | |
| 1548 } | |
| 1549 } | |
| 1550 } | |
| 1551 | |
| 1552 static button_where | |
| 1553 what_button (XlwScrollBarWidget w, int mouse_x, int mouse_y) | |
| 1554 { | |
| 1555 int width = widget_w (w); | |
| 1556 int height = widget_h (w); | |
| 1557 int arrow_height = arrow_h (w); | |
| 1558 | |
| 1559 mouse_x -= widget_x (w); | |
| 1560 mouse_y -= widget_y (w); | |
| 1561 | |
| 1562 if (mouse_x < 0 || mouse_x >= width || | |
| 1563 mouse_y < 0 || mouse_y >= height) | |
| 1564 return BUTTON_NONE; | |
| 1565 | |
| 1566 if (w->sb.showArrows) | |
| 1567 { | |
| 1568 if (mouse_y >= (height -= arrow_height)) | |
| 1569 return BUTTON_DOWN_ARROW; | |
| 1570 | |
| 1571 if (arrow_same_end (w)) | |
| 1572 { | |
| 1573 if (mouse_y >= (height -= arrow_height)) | |
| 1574 return BUTTON_UP_ARROW; | |
| 1575 } | |
| 1576 else | |
| 1577 if ( (mouse_y -= arrow_height) < 0) | |
| 1578 return BUTTON_UP_ARROW; | |
| 1579 } | |
| 1580 | |
| 1581 if ( (mouse_y -= w->sb.above) < 0) | |
| 1582 return BUTTON_TROUGH_ABOVE; | |
| 1583 | |
| 1584 if ( (mouse_y -= w->sb.ss) < 0) | |
| 1585 return BUTTON_SLIDER; | |
| 1586 | |
| 1587 return BUTTON_TROUGH_BELOW; | |
| 1588 } | |
| 1589 | |
| 1590 static void | |
| 2286 | 1591 Select (Widget widget, XEvent *event, String *UNUSED (parms), |
| 1592 Cardinal *UNUSED (num_parms)) | |
| 428 | 1593 { |
| 1594 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1595 button_where sb_button; | |
| 1596 | |
| 1597 int mouse_x = event_x (w, event); | |
| 1598 int mouse_y = event_y (w, event); | |
| 1599 | |
| 1600 int last_value = w->sb.savedValue = w->sb.value; | |
| 1601 int reason = XmCR_NONE; | |
| 1602 | |
| 1603 XtGrabKeyboard ((Widget) w, False, GrabModeAsync, GrabModeAsync, | |
| 1604 event->xbutton.time); | |
| 1605 | |
| 1606 sb_button = what_button (w, mouse_x, mouse_y); | |
| 1607 | |
| 1608 if (w->sb.forced_scroll != FORCED_SCROLL_NONE) | |
| 1609 { | |
| 1610 switch (sb_button) | |
| 1611 { | |
| 1612 case BUTTON_TROUGH_ABOVE: | |
| 1613 case BUTTON_TROUGH_BELOW: | |
| 1614 case BUTTON_SLIDER: | |
| 1615 sb_button= BUTTON_NONE; /* cause next switch to fall through */ | |
| 1616 if (w->sb.forced_scroll == FORCED_SCROLL_UPLEFT) | |
| 1617 { | |
| 1618 decrement_value (w, w->sb.pageIncrement); | |
| 1619 w->sb.armed = ARM_PAGEUP; | |
| 1620 reason = XmCR_PAGE_DECREMENT; | |
| 1621 break; | |
| 1622 } | |
| 1623 else if (w->sb.forced_scroll == FORCED_SCROLL_DOWNRIGHT) | |
| 1624 { | |
| 1625 increment_value (w, w->sb.pageIncrement); | |
| 1626 w->sb.armed = ARM_PAGEDOWN; | |
| 1627 reason = XmCR_PAGE_INCREMENT; | |
| 1628 break; | |
| 1629 } | |
| 1630 abort(); | |
| 1631 default: | |
| 1632 ; /* Do nothing */ | |
| 1633 } | |
| 1634 } | |
| 1635 | |
| 1636 switch (sb_button) | |
| 1637 { | |
| 1638 case BUTTON_TROUGH_ABOVE: | |
| 1639 decrement_value (w, w->sb.pageIncrement); | |
| 1640 w->sb.armed = ARM_PAGEUP; | |
| 1641 reason = XmCR_PAGE_DECREMENT; | |
| 1642 break; | |
| 1643 case BUTTON_TROUGH_BELOW: | |
| 1644 increment_value (w, w->sb.pageIncrement); | |
| 1645 w->sb.armed = ARM_PAGEDOWN; | |
| 1646 reason = XmCR_PAGE_INCREMENT; | |
| 1647 break; | |
| 1648 case BUTTON_SLIDER: | |
| 1649 w->sb.lastY = mouse_y; | |
| 1650 w->sb.armed = ARM_SLIDER; | |
| 1651 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below); | |
| 1652 break; | |
| 1653 case BUTTON_UP_ARROW: | |
| 1654 if (event->xbutton.state & ControlMask) | |
| 1655 { | |
| 1656 w->sb.value = w->sb.minimum; | |
| 1657 reason = XmCR_TO_TOP; | |
| 1658 } | |
| 1659 else | |
| 1660 { | |
| 1661 decrement_value (w, w->sb.increment); | |
| 1662 reason = XmCR_DECREMENT; | |
| 1663 } | |
| 1664 w->sb.armed = ARM_UP; | |
| 1665 redraw_up_arrow (w, True, False); | |
| 1666 break; | |
| 1667 case BUTTON_DOWN_ARROW: | |
| 1668 if (event->xbutton.state & ControlMask) | |
| 1669 { | |
| 1670 w->sb.value = w->sb.maximum; | |
| 1671 reason = XmCR_TO_BOTTOM; | |
| 1672 } | |
| 1673 else | |
| 1674 { | |
| 1675 increment_value (w, w->sb.increment); | |
| 1676 reason = XmCR_INCREMENT; | |
| 1677 } | |
| 1678 w->sb.armed = ARM_DOWN; | |
| 1679 redraw_down_arrow (w, True, False); | |
| 1680 break; | |
| 1681 case BUTTON_NONE: | |
| 1682 ; /* Do nothing */ | |
| 1683 } | |
| 1684 | |
| 1685 verify_values (w); | |
| 1686 | |
| 1687 if (last_value != w->sb.value) | |
| 1688 { | |
| 1689 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below); | |
| 1690 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below); | |
| 1691 | |
| 1692 call_callbacks (w, reason, w->sb.value, mouse_y, event); | |
| 1693 | |
| 1694 if (w->sb.timerActive) | |
| 1695 XtRemoveTimeOut (w->sb.timerId); | |
| 1696 | |
| 1697 w->sb.timerId = | |
| 1698 XtAppAddTimeOut (XtWidgetToApplicationContext ((Widget) w), | |
| 1699 (unsigned long) w->sb.initialDelay, | |
| 1700 timer, (XtPointer) w); | |
| 1701 w->sb.timerActive = True; | |
| 1702 } | |
| 1703 | |
| 1704 CHECK (w); | |
| 1705 } | |
| 1706 | |
| 1707 static void | |
| 1708 PageDownOrRight (Widget widget, XEvent *event, String *parms, Cardinal *num_parms) | |
| 1709 { | |
| 1710 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1711 w->sb.forced_scroll = FORCED_SCROLL_DOWNRIGHT; | |
| 1712 Select (widget, event, parms, num_parms); | |
| 1713 w->sb.forced_scroll = FORCED_SCROLL_NONE; | |
| 1714 } | |
| 1715 | |
| 1716 static void | |
| 1717 PageUpOrLeft (Widget widget, XEvent *event, String *parms, Cardinal *num_parms) | |
| 1718 { | |
| 1719 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1720 w->sb.forced_scroll = FORCED_SCROLL_UPLEFT; | |
| 1721 Select (widget, event, parms, num_parms); | |
| 1722 w->sb.forced_scroll = FORCED_SCROLL_NONE; | |
| 1723 } | |
| 1724 | |
| 1725 static void | |
| 2286 | 1726 Drag (Widget widget, XEvent *event, String *UNUSED (parms), |
| 1727 Cardinal *UNUSED (num_parms)) | |
| 428 | 1728 { |
| 1729 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1730 | |
| 1731 if (w->sb.armed == ARM_SLIDER) | |
| 1732 { | |
| 1733 int mouse_y = event_y (w, event); | |
| 1734 int diff = mouse_y - w->sb.lastY; | |
| 1735 | |
| 1736 if (diff < -(w->sb.above)) /* up */ | |
| 1737 { | |
| 1738 mouse_y -= (diff + w->sb.above); | |
| 1739 diff = -(w->sb.above); | |
| 1740 } | |
| 1741 else if (diff > w->sb.below) /* down */ | |
| 1742 { | |
| 1743 mouse_y -= (diff - w->sb.below); | |
| 1744 diff = w->sb.below; | |
| 1745 } | |
| 1746 | |
| 1747 if (diff) | |
| 1748 { | |
| 1749 w->sb.above += diff; | |
| 1750 w->sb.below -= diff; | |
| 1751 | |
| 1752 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below); | |
| 1753 | |
| 1754 w->sb.lastY = mouse_y; | |
| 1755 | |
| 1756 w->sb.value = value_from_pixel (w, w->sb.above); | |
| 1757 verify_values (w); | |
| 1758 CHECK (w); | |
| 1759 | |
| 1760 call_callbacks (w, XmCR_DRAG, w->sb.value, event_y (w, event), event); | |
| 1761 } | |
| 1762 } | |
| 1763 CHECK (w); | |
| 1764 } | |
| 1765 | |
| 1766 static void | |
| 2286 | 1767 Release (Widget widget, XEvent *event, String *UNUSED (parms), |
| 1768 Cardinal *UNUSED (num_parms)) | |
| 428 | 1769 { |
| 1770 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1771 | |
| 1772 switch (w->sb.armed) | |
| 1773 { | |
| 1774 case ARM_SLIDER: | |
| 1775 call_callbacks (w, XmCR_VALUE_CHANGED, w->sb.value, event_y (w, event), event); | |
| 1776 w->sb.armed = ARM_NONE; | |
| 1777 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below); | |
| 1778 break; | |
| 1779 case ARM_UP: | |
| 1780 redraw_up_arrow (w, False, False); | |
| 1781 break; | |
| 1782 case ARM_DOWN: | |
| 1783 redraw_down_arrow (w, False, False); | |
| 1784 break; | |
| 1785 default: | |
| 1786 ; /* Do nothing */ | |
| 1787 } | |
| 1788 | |
| 1789 XtUngrabKeyboard ((Widget) w, event->xbutton.time); | |
| 1790 | |
| 1791 w->sb.armed = ARM_NONE; | |
| 1792 } | |
| 1793 | |
| 1794 static void | |
| 2286 | 1795 Jump (Widget widget, XEvent *event, String *UNUSED (parms), |
| 1796 Cardinal *UNUSED (num_parms)) | |
| 428 | 1797 { |
| 1798 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1799 int last_value; | |
| 1800 | |
| 1801 int mouse_x = event_x (w, event); | |
| 1802 int mouse_y = event_y (w, event); | |
| 1803 | |
| 1804 int scroll_region_y = widget_y (w); | |
| 1805 int scroll_region_h = widget_h (w); | |
| 1806 | |
| 1807 if (w->sb.showArrows) | |
| 1808 { | |
| 1809 int arrow_height = arrow_h (w); | |
| 1810 scroll_region_h -= 2 * arrow_height; | |
| 1811 if (!arrow_same_end (w)) | |
| 1812 scroll_region_y += arrow_height; | |
| 1813 } | |
| 1814 | |
| 1815 XtGrabKeyboard ((Widget) w, False, GrabModeAsync, GrabModeAsync, | |
| 1816 event->xbutton.time); | |
| 1817 | |
| 1818 switch (what_button (w, mouse_x, mouse_y)) | |
| 1819 { | |
| 1820 case BUTTON_TROUGH_ABOVE: | |
| 1821 case BUTTON_TROUGH_BELOW: | |
| 1822 case BUTTON_SLIDER: | |
| 1823 w->sb.savedValue = w->sb.value; | |
| 1824 | |
| 1825 last_value = w->sb.value; | |
| 1826 | |
| 1827 w->sb.above = mouse_y - (w->sb.ss / 2) - scroll_region_y; | |
| 1828 if (w->sb.above < 0) | |
| 1829 w->sb.above = 0; | |
| 1830 else if (w->sb.above + w->sb.ss > scroll_region_h) | |
| 1831 w->sb.above = scroll_region_h - w->sb.ss; | |
| 1832 | |
| 1833 w->sb.below = scroll_region_h - w->sb.ss - w->sb.above; | |
| 1834 | |
| 1835 w->sb.armed = ARM_SLIDER; | |
| 1836 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below); | |
| 1837 | |
| 1838 w->sb.value = value_from_pixel (w, w->sb.above); | |
| 1839 verify_values (w); | |
| 1840 CHECK (w); | |
| 1841 | |
| 1842 w->sb.lastY = mouse_y; | |
| 1843 | |
| 1844 if (w->sb.value != last_value) | |
| 1845 call_callbacks (w, XmCR_DRAG, w->sb.value, mouse_y, event); | |
| 1846 | |
| 1847 break; | |
| 1848 default: | |
| 1849 ; /* Do nothing */ | |
| 1850 } | |
| 1851 CHECK (w); | |
| 1852 } | |
| 1853 | |
| 1854 static void | |
| 2286 | 1855 Abort (Widget widget, XEvent *event, String *UNUSED (parms), |
| 1856 Cardinal *UNUSED (num_parms)) | |
| 428 | 1857 { |
| 1858 XlwScrollBarWidget w = (XlwScrollBarWidget) widget; | |
| 1859 | |
| 1860 if (w->sb.armed != ARM_NONE) | |
| 1861 { | |
| 1862 if (w->sb.value != w->sb.savedValue) | |
| 1863 { | |
| 1864 w->sb.value = w->sb.savedValue; | |
| 1865 | |
| 1866 seg_pixel_sizes (w, &w->sb.above, &w->sb.ss, &w->sb.below); | |
| 1867 draw_slider (w, w->sb.above, w->sb.ss, w->sb.below); | |
| 1868 | |
| 1869 call_callbacks (w, XmCR_VALUE_CHANGED, w->sb.value, | |
| 1870 event_y (w, event), event); | |
| 1871 } | |
| 1872 | |
| 1873 switch (w->sb.armed) | |
| 1874 { | |
| 1875 case ARM_UP: redraw_up_arrow (w, False, False); break; | |
| 1876 case ARM_DOWN: redraw_down_arrow (w, False, False); break; | |
| 1877 default: ; /* Do nothing */ | |
| 1878 } | |
| 1879 | |
| 1880 w->sb.armed = ARM_NONE; | |
| 1881 | |
| 1882 XtUngrabKeyboard ((Widget) w, event->xbutton.time); | |
| 1883 } | |
| 1884 } |