|
0
|
1 /* Implements a lightweight scrollbar widget.
|
|
|
2 Copyright (C) 1992, 1993, 1994 Lucid, Inc.
|
|
|
3
|
|
|
4 This file is part of the Lucid Widget Library.
|
|
|
5
|
|
|
6 The Lucid Widget Library is free software; you can redistribute it and/or
|
|
|
7 modify it under the terms of the GNU General Public License as published by
|
|
|
8 the Free Software Foundation; either version 2, or (at your option)
|
|
|
9 any later version.
|
|
|
10
|
|
|
11 The Lucid Widget Library is distributed in the hope that it will be useful,
|
|
|
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
14 GNU General Public License for more details.
|
|
|
15
|
|
|
16 You should have received a copy of the GNU General Public License
|
|
|
17 along with GNU Emacs; see the file COPYING. If not, write to
|
|
|
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
19
|
|
|
20 /* Created by Douglas Keller <dkeller@vnet.ibm.com> */
|
|
|
21 /* Last changed 03/24/95 */
|
|
|
22
|
|
|
23 /*
|
|
|
24 * Athena-style scrollbar button bindings added on Sun Dec 24 22:03:57 1995
|
|
|
25 * by Jonathan Stigelman <Stig@hackvan.com>... Ho ho ho!
|
|
|
26 *
|
|
|
27 * To use them, put this resource in your .Xdefaults
|
|
|
28 *
|
|
|
29 * Emacs*XlwScrollBar.translations: #override \n\
|
|
|
30 * <Btn1Down>: PageDownOrRight() \n\
|
|
|
31 * <Btn3Down>: PageUpOrLeft()
|
|
|
32 *
|
|
|
33 */
|
|
|
34
|
|
|
35 /*
|
|
|
36 * Resources Supported:
|
|
|
37 * XmNforeground
|
|
|
38 * XmNbackground
|
|
|
39 * XmNtopShadowColor
|
|
|
40 * XmNtopShadowPixmap
|
|
|
41 * XmNbottomShadowColor
|
|
|
42 * XmNbottomShadowPixmap
|
|
|
43 * XmNtroughColor
|
|
|
44 * XmNshadowThickness
|
|
|
45 * XmNshowArrows
|
|
|
46 * XmNorientation
|
|
|
47 * XmNborderWidth
|
|
|
48 *
|
|
|
49 * XmNminimum
|
|
|
50 * XmNmaximum
|
|
|
51 * XmNvalue
|
|
|
52 * XmNincrement
|
|
|
53 * XmNpageIncrement
|
|
|
54 *
|
|
|
55 * XmNvalueChangedCallback
|
|
|
56 * XmNincrementCallback
|
|
|
57 * XmNdecrementCallback
|
|
|
58 * XmNpageIncrementCallback
|
|
|
59 * XmNpageDecrementCallback
|
|
|
60 * XmNtoTopCallback
|
|
|
61 * XmNtoBottomCallback
|
|
|
62 * XmNdragCallback
|
|
|
63 *
|
|
|
64 * XmNknobStyle - values can be: "plain" or "dimple"
|
|
|
65 * XmNarrowPosition - values can be: "opposite" or "same"
|
|
|
66 *
|
|
|
67 */
|
|
|
68
|
|
|
69 #include <stdio.h>
|
|
|
70 #include <stdlib.h>
|
|
|
71 #include <limits.h>
|
|
|
72
|
|
|
73 #include <X11/IntrinsicP.h>
|
|
|
74 #include <X11/StringDefs.h>
|
|
|
75 #include <X11/bitmaps/gray>
|
|
|
76
|
|
|
77 #include "xlwscrollbarP.h"
|
|
|
78 #include "xlwscrollbar.h"
|
|
|
79
|
|
|
80 #define DBUG(x)
|
|
|
81
|
|
|
82 #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \
|
|
|
83 ? ((unsigned long) (x)) : ((unsigned long) (y)))
|
|
|
84
|
|
|
85 #define VERT(w) (w->sb.orientation == XmVERTICAL)
|
|
|
86
|
|
|
87 #define SS_MIN 8
|
|
|
88
|
|
|
89 #define ARROW_UP 0
|
|
|
90 #define ARROW_DOWN 1
|
|
|
91 #define ARROW_LEFT 2
|
|
|
92 #define ARROW_RIGHT 3
|
|
|
93
|
|
|
94 #define ARM_NONE 0
|
|
|
95 #define ARM_KNOB 1
|
|
|
96 #define ARM_UP 2
|
|
|
97 #define ARM_DOWN 3
|
|
|
98 #define ARM_PAGEUP 4
|
|
|
99 #define ARM_PAGEDOWN 5
|
|
|
100
|
|
|
101 #define BUTTON_NONE 0
|
|
|
102 #define BUTTON_KNOB 1
|
|
|
103 #define BUTTON_UP_ARROW 2
|
|
|
104 #define BUTTON_DOWN_ARROW 3
|
|
|
105 #define BUTTON_TROUGH_ABOVE 4
|
|
|
106 #define BUTTON_TROUGH_BELOW 5
|
|
|
107
|
|
|
108 #define KNOB_PLAIN 0
|
|
|
109 #define KNOB_DIMPLE 1
|
|
|
110
|
|
|
111 /************************************************************************
|
|
|
112 **
|
|
|
113 ** Resources
|
|
|
114 **
|
|
|
115 */
|
|
|
116 #define offset(field) XtOffset(XlwScrollBarWidget, field)
|
|
|
117
|
|
|
118 static XtResource resources[] = {
|
|
|
119 { XmNforeground, XmCForeground, XtRPixel, sizeof(Pixel),
|
|
|
120 offset(sb.foreground), XtRImmediate, XtDefaultForeground },
|
|
|
121
|
|
|
122 { XmNtopShadowColor, XmCTopShadowColor, XtRPixel, sizeof(Pixel),
|
|
|
123 offset(sb.topShadowColor), XtRImmediate, (XtPointer) ~0 },
|
|
|
124 { XmNbottomShadowColor, XmCBottomShadowColor, XtRPixel, sizeof(Pixel),
|
|
|
125 offset(sb.bottomShadowColor), XtRImmediate, (XtPointer)~0 },
|
|
|
126
|
|
|
127 { XmNtopShadowPixmap, XmCTopShadowPixmap, XtRPixmap, sizeof (Pixmap),
|
|
|
128 offset(sb.topShadowPixmap), XtRImmediate, (XtPointer)None},
|
|
|
129 { XmNbottomShadowPixmap, XmCBottomShadowPixmap, XtRPixmap, sizeof (Pixmap),
|
|
|
130 offset(sb.bottomShadowPixmap), XtRImmediate, (XtPointer)None},
|
|
|
131
|
|
|
132 { XmNtroughColor, XmCTroughColor, XtRPixel, sizeof(Pixel),
|
|
|
133 offset(sb.troughColor), XtRImmediate, (XtPointer)~0 },
|
|
|
134
|
|
|
135 { XmNshadowThickness, XmCShadowThickness, XtRInt, sizeof(int),
|
|
|
136 offset(sb.shadowThickness), XtRImmediate, (XtPointer)2 },
|
|
|
137
|
|
|
138 { XmNborderWidth, XmCBorderWidth, XtRDimension, sizeof(Dimension),
|
|
|
139 offset(core.border_width), XtRImmediate, (XtPointer)0 },
|
|
|
140
|
|
|
141 { XmNshowArrows, XmCShowArrows, XtRBoolean, sizeof(Boolean),
|
|
|
142 offset(sb.showArrows), XtRImmediate, (XtPointer)True },
|
|
|
143
|
|
|
144 { XmNinitialDelay, XmCInitialDelay, XtRInt, sizeof(int),
|
|
|
145 offset(sb.initialDelay), XtRImmediate, (XtPointer) 250 },
|
|
|
146 { XmNrepeatDelay, XmCRepeatDelay, XtRInt, sizeof(int),
|
|
|
147 offset(sb.repeatDelay), XtRImmediate, (XtPointer) 50 },
|
|
|
148
|
|
|
149 { XmNorientation, XmCOrientation, XtROrientation, sizeof(unsigned char),
|
|
|
150 offset(sb.orientation), XtRImmediate, (XtPointer) XmVERTICAL },
|
|
|
151
|
|
|
152
|
|
|
153 { XmNminimum, XmCMinimum, XtRInt, sizeof(int),
|
|
|
154 offset(sb.minimum), XtRImmediate, (XtPointer) 0},
|
|
|
155 { XmNmaximum, XmCMaximum, XtRInt, sizeof(int),
|
|
|
156 offset(sb.maximum), XtRImmediate, (XtPointer) 100},
|
|
|
157 { XmNvalue, XmCValue, XtRInt, sizeof(int),
|
|
|
158 offset(sb.value), XtRImmediate, (XtPointer) 0},
|
|
|
159 { XmNsliderSize, XmCSliderSize, XtRInt, sizeof(int),
|
|
|
160 offset(sb.sliderSize), XtRImmediate, (XtPointer) 10},
|
|
|
161 { XmNincrement, XmCIncrement, XtRInt, sizeof(int),
|
|
|
162 offset(sb.increment), XtRImmediate, (XtPointer) 1},
|
|
|
163 { XmNpageIncrement, XmCPageIncrement, XtRInt, sizeof(int),
|
|
|
164 offset(sb.pageIncrement), XtRImmediate, (XtPointer) 10},
|
|
|
165
|
|
|
166 { XmNvalueChangedCallback, XmCValueChangedCallback, XtRCallback, sizeof(XtPointer),
|
|
|
167 offset(sb.valueChangedCBL), XtRCallback, NULL},
|
|
|
168 { XmNincrementCallback, XmCIncrementCallback, XtRCallback, sizeof(XtPointer),
|
|
|
169 offset(sb.incrementCBL), XtRCallback, NULL},
|
|
|
170 { XmNdecrementCallback, XmCDecrementCallback, XtRCallback, sizeof(XtPointer),
|
|
|
171 offset(sb.decrementCBL), XtRCallback, NULL},
|
|
|
172 { XmNpageIncrementCallback, XmCPageIncrementCallback, XtRCallback, sizeof(XtPointer),
|
|
|
173 offset(sb.pageIncrementCBL), XtRCallback, NULL},
|
|
|
174 { XmNpageDecrementCallback, XmCPageDecrementCallback, XtRCallback, sizeof(XtPointer),
|
|
|
175 offset(sb.pageDecrementCBL), XtRCallback, NULL},
|
|
|
176 { XmNtoTopCallback, XmCToTopCallback, XtRCallback, sizeof(XtPointer),
|
|
|
177 offset(sb.toTopCBL), XtRCallback, NULL},
|
|
|
178 { XmNtoBottomCallback, XmCToBottomCallback, XtRCallback, sizeof(XtPointer),
|
|
|
179 offset(sb.toBottomCBL), XtRCallback, NULL},
|
|
|
180 { XmNdragCallback, XmCDragCallback, XtRCallback, sizeof(XtPointer),
|
|
|
181 offset(sb.dragCBL), XtRCallback, NULL},
|
|
|
182
|
|
|
183 { XmNknobStyle, XmCKnobStyle, XtRString, sizeof(char *),
|
|
|
184 offset(sb.knobStyle), XtRImmediate, NULL},
|
|
|
185
|
|
|
186 { XmNarrowPosition, XmCArrowPosition, XtRString, sizeof(char *),
|
|
|
187 offset(sb.arrowPosition), XtRImmediate, NULL},
|
|
|
188 };
|
|
|
189
|
|
|
190 /************************************************************************
|
|
|
191 **
|
|
|
192 ** Prototypes
|
|
|
193 **
|
|
|
194 */
|
|
|
195
|
|
|
196 /*
|
|
|
197 ** Actions
|
|
|
198 */
|
|
|
199 static void Select(Widget w, XEvent *event, String *parms, Cardinal *num_parms);
|
|
|
200 static void PageUpOrLeft(Widget w, XEvent *event, String *parms, Cardinal *num_parms);
|
|
|
201 static void PageDownOrRight(Widget w, XEvent *event, String *parms, Cardinal *num_parms);
|
|
|
202 static void Drag(Widget w, XEvent *event, String *parms, Cardinal *num_parms);
|
|
|
203 static void Release(Widget w, XEvent *event, String *parms, Cardinal *num_parms);
|
|
|
204 static void Jump(Widget w, XEvent *event, String *parms, Cardinal *num_parms);
|
|
|
205 static void Abort(Widget w, XEvent *event, String *parms, Cardinal *num_parms);
|
|
|
206
|
|
|
207 /*
|
|
|
208 ** Methods
|
|
|
209 */
|
|
|
210 static void Initialize(Widget treq, Widget tnew, ArgList args, Cardinal *num_args);
|
|
|
211 static Boolean SetValues(Widget current, Widget request, Widget nw, ArgList args, Cardinal *num_args);
|
|
|
212 static void Destroy(Widget widget);
|
|
|
213 static void Redisplay(Widget widget, XEvent *event, Region region);
|
|
|
214 static void Resize(Widget widget);
|
|
|
215 static void Realize(Widget widget, XtValueMask *valuemask, XSetWindowAttributes *attr);
|
|
|
216
|
|
|
217 /*
|
|
|
218 ** Private
|
|
|
219 */
|
|
|
220
|
|
|
221
|
|
|
222 /************************************************************************
|
|
|
223 **
|
|
|
224 ** Actions Table
|
|
|
225 **
|
|
|
226 */
|
|
|
227 static XtActionsRec actions[] = {
|
|
|
228 {"Select", Select},
|
|
|
229 {"PageDownOrRight", PageDownOrRight},
|
|
|
230 {"PageUpOrLeft", PageUpOrLeft},
|
|
|
231 {"Drag", Drag},
|
|
|
232 {"Release", Release},
|
|
|
233 {"Jump", Jump},
|
|
|
234 {"Abort", Abort},
|
|
|
235 };
|
|
|
236
|
|
|
237 /************************************************************************
|
|
|
238 **
|
|
|
239 ** Default Translation Table
|
|
|
240 **
|
|
|
241 */
|
|
|
242 static char default_translations[] =
|
|
|
243 "<Btn1Down>: Select()\n"
|
|
|
244 "<Btn1Motion>: Drag()\n"
|
|
|
245 "<Btn1Up>: Release()\n"
|
|
|
246 "<Btn2Down>: Jump()\n"
|
|
|
247 "<Btn2Motion>: Drag()\n"
|
|
|
248 "<Btn2Up>: Release()\n"
|
|
|
249 "<Key>Delete: Abort()"
|
|
|
250 ;
|
|
|
251
|
|
|
252 /************************************************************************
|
|
|
253 **
|
|
|
254 ** Class record initalization
|
|
|
255 **
|
|
|
256 */
|
|
|
257 XlwScrollBarClassRec xlwScrollBarClassRec = {
|
|
|
258 /* core_class fields */
|
|
|
259 {
|
|
|
260 /* superclass */ (WidgetClass) &coreClassRec,
|
|
|
261 /* class_name */ "XlwScrollBar",
|
|
|
262 /* widget_size */ sizeof(XlwScrollBarRec),
|
|
|
263 /* class_initialize */ NULL,
|
|
|
264 /* class_part_init */ NULL,
|
|
|
265 /* class_inited */ False,
|
|
|
266 /* initialize */ Initialize,
|
|
|
267 /* initialize_hook */ NULL,
|
|
|
268 /* realize */ Realize,
|
|
|
269 /* actions */ actions,
|
|
|
270 /* num_actions */ XtNumber(actions),
|
|
|
271 /* resources */ resources,
|
|
|
272 /* num_resources */ XtNumber(resources),
|
|
|
273 /* xrm_class */ NULLQUARK,
|
|
|
274 /* compress_motion */ True,
|
|
|
275 /* compress_exposure */ XtExposeCompressMultiple,
|
|
|
276 /* compress_enterleave */ True,
|
|
|
277 /* visible_interest */ False,
|
|
|
278 /* destroy */ Destroy,
|
|
|
279 /* resize */ Resize,
|
|
|
280 /* expose */ Redisplay,
|
|
|
281 /* set_values */ SetValues,
|
|
|
282 /* set_values_hook */ NULL,
|
|
|
283 /* set_values_almost */ XtInheritSetValuesAlmost,
|
|
|
284 /* get_values_hook */ NULL,
|
|
|
285 /* accept_focus */ NULL,
|
|
|
286 /* version */ XtVersionDontCheck,
|
|
|
287 /* callback_private */ NULL,
|
|
|
288 /* tm_table */ default_translations,
|
|
|
289 /* query_geometry */ NULL,
|
|
|
290 },
|
|
|
291 /* scrollbar_class fields */
|
|
|
292 {
|
|
|
293 /* dummy_field */ 0,
|
|
|
294 },
|
|
|
295 };
|
|
|
296
|
|
|
297 WidgetClass xlwScrollBarWidgetClass = (WidgetClass) &xlwScrollBarClassRec;
|
|
|
298
|
|
|
299 /************************************************************************
|
|
|
300 **
|
|
|
301 ** Debug funcitons
|
|
|
302 **
|
|
|
303 */
|
|
|
304
|
|
|
305 #ifdef SHOW_CLEAR
|
|
|
306 static void myXClearArea(Display *dpy, Drawable d, int x, int y, int w, int h, Boolean exp, XlwScrollBarWidget widget)
|
|
|
307 {
|
|
|
308 XFillRectangle(dpy, d, widget->sb.topShadowGC, x, y, w, h);
|
|
|
309 XSync(dpy, False);
|
|
|
310 sleep(2);
|
|
|
311 XClearArea(dpy, d, x, y, w, h, exp);
|
|
|
312 }
|
|
|
313
|
|
|
314 #define XClearArea(dpy,win,x,y,width,height,exp) myXClearArea(dpy,win,x,y,width,height,exp,w)
|
|
|
315 #endif
|
|
|
316
|
|
|
317 #ifdef CHECK_VALUES
|
|
|
318 static void check(XlwScrollBarWidget w)
|
|
|
319 {
|
|
|
320 int height;
|
|
|
321
|
|
|
322 height= widget_h(w);
|
|
|
323 if( w->sb.showArrows ) height -= (2*arrow_h(w));
|
|
|
324
|
|
|
325 if( (w->sb.above + w->sb.ss + w->sb.below > height) ||
|
|
|
326 (w->sb.value < w->sb.minimum) ||
|
|
|
327 (w->sb.value > w->sb.maximum - w->sb.sliderSize )
|
|
|
328 )
|
|
|
329 {
|
|
|
330 printf("above=%d ss=%d below=%d height=%d\n",
|
|
|
331 w->sb.above, w->sb.ss, w->sb.below, height);
|
|
|
332 printf("value=%d min=%d max=%d ss=%d max-ss=%d\n",
|
|
|
333 w->sb.value, w->sb.minimum, w->sb.maximum, w->sb.sliderSize, w->sb.maximum - w->sb.sliderSize);
|
|
|
334 abort();
|
|
|
335 }
|
|
|
336 }
|
|
|
337
|
|
|
338 # define CHECK(w) check(w)
|
|
|
339 #else
|
|
|
340 # define CHECK(w)
|
|
|
341 #endif
|
|
|
342
|
|
|
343 /************************************************************************
|
|
|
344 **
|
|
|
345 ** Static funcitons
|
|
|
346 **
|
|
|
347 */
|
|
|
348
|
|
|
349 static void call_callbacks(XlwScrollBarWidget w, int reason, int value, int pixel,
|
|
|
350 XEvent *event)
|
|
|
351 {
|
|
|
352 XlwScrollBarCallbackStruct cbs;
|
|
|
353 Boolean called_anything;
|
|
|
354
|
|
|
355 cbs.reason = reason;
|
|
|
356 cbs.event = event;
|
|
|
357 cbs.value = value;
|
|
|
358 cbs.pixel = pixel;
|
|
|
359
|
|
|
360 called_anything = False;
|
|
|
361
|
|
|
362 switch( reason )
|
|
|
363 {
|
|
|
364 case XmCR_VALUE_CHANGED:
|
|
|
365 XtCallCallbackList( (Widget)w, w->sb.valueChangedCBL, &cbs );
|
|
|
366 called_anything = True;
|
|
|
367 break;
|
|
|
368 case XmCR_INCREMENT:
|
|
|
369 if( w->sb.incrementCBL )
|
|
|
370 {
|
|
|
371 XtCallCallbackList( (Widget)w, w->sb.incrementCBL, &cbs );
|
|
|
372 called_anything = True;
|
|
|
373 }
|
|
|
374 break;
|
|
|
375 case XmCR_DECREMENT:
|
|
|
376 if( w->sb.decrementCBL )
|
|
|
377 {
|
|
|
378 XtCallCallbackList( (Widget)w, w->sb.decrementCBL, &cbs );
|
|
|
379 called_anything = True;
|
|
|
380 }
|
|
|
381 break;
|
|
|
382 case XmCR_PAGE_INCREMENT:
|
|
|
383 if( w->sb.incrementCBL )
|
|
|
384 {
|
|
|
385 XtCallCallbackList( (Widget)w, w->sb.pageIncrementCBL, &cbs );
|
|
|
386 called_anything = True;
|
|
|
387 }
|
|
|
388 break;
|
|
|
389 case XmCR_PAGE_DECREMENT:
|
|
|
390 if( w->sb.decrementCBL )
|
|
|
391 {
|
|
|
392 XtCallCallbackList( (Widget)w, w->sb.pageDecrementCBL, &cbs );
|
|
|
393 called_anything = True;
|
|
|
394 }
|
|
|
395 break;
|
|
|
396 case XmCR_TO_TOP:
|
|
|
397 if( w->sb.toTopCBL )
|
|
|
398 {
|
|
|
399 XtCallCallbackList( (Widget)w, w->sb.toTopCBL, &cbs );
|
|
|
400 called_anything = True;
|
|
|
401 }
|
|
|
402 break;
|
|
|
403 case XmCR_TO_BOTTOM:
|
|
|
404 if( w->sb.toBottomCBL )
|
|
|
405 {
|
|
|
406 XtCallCallbackList( (Widget)w, w->sb.toBottomCBL, &cbs );
|
|
|
407 called_anything = True;
|
|
|
408 }
|
|
|
409 break;
|
|
|
410 case XmCR_DRAG:
|
|
|
411 if( w->sb.dragCBL )
|
|
|
412 {
|
|
|
413 XtCallCallbackList( (Widget)w, w->sb.dragCBL, &cbs );
|
|
|
414 }
|
|
|
415 called_anything = True; /* Special Case */
|
|
|
416 break;
|
|
|
417 }
|
|
|
418
|
|
|
419 if( !called_anything )
|
|
|
420 {
|
|
|
421 cbs.reason = XmCR_VALUE_CHANGED;
|
|
|
422 XtCallCallbackList( (Widget)w, w->sb.valueChangedCBL, &cbs );
|
|
|
423 }
|
|
|
424 }
|
|
|
425
|
|
|
426 /*
|
|
|
427 ** Widget sizes minus the shadow and highlight area
|
|
|
428 **
|
|
|
429 */
|
|
|
430 static int widget_x(XlwScrollBarWidget w)
|
|
|
431 {
|
|
|
432 return( w->sb.shadowThickness );
|
|
|
433 }
|
|
|
434
|
|
|
435 static int widget_y(XlwScrollBarWidget w)
|
|
|
436 {
|
|
|
437 return( w->sb.shadowThickness );
|
|
|
438 }
|
|
|
439
|
|
|
440 static int widget_w(XlwScrollBarWidget w)
|
|
|
441 {
|
|
|
442 int width, x = w->sb.shadowThickness;
|
|
|
443
|
|
|
444 width = VERT(w) ? w->core.width : w->core.height;
|
|
|
445
|
|
|
446 if( width <= (2 * x) )
|
|
|
447 return( 1 );
|
|
|
448 else
|
|
|
449 return( width - (2 * x) );
|
|
|
450 }
|
|
|
451
|
|
|
452 static int widget_h(XlwScrollBarWidget w)
|
|
|
453 {
|
|
|
454 int height, y = w->sb.shadowThickness;
|
|
|
455
|
|
|
456 height = VERT(w) ? w->core.height : w->core.width;
|
|
|
457
|
|
|
458 if( height <= (2 * y) )
|
|
|
459 return( 1 );
|
|
|
460 else
|
|
|
461 return( height - (2 * y) );
|
|
|
462 }
|
|
|
463
|
|
|
464 static int arrow_h(XlwScrollBarWidget w)
|
|
|
465 {
|
|
|
466 int width, height;
|
|
|
467
|
|
|
468 width = widget_w(w);
|
|
|
469 height= widget_h(w);
|
|
|
470
|
|
|
471 if( width > ((height / 2) - (SS_MIN / 2) - 1) )
|
|
|
472 {
|
|
|
473 return( ((height / 2) - (SS_MIN / 2) - 1) );
|
|
|
474 }
|
|
|
475 else
|
|
|
476 {
|
|
|
477 return( width );
|
|
|
478 }
|
|
|
479 }
|
|
|
480
|
|
|
481 static int event_x(XlwScrollBarWidget w, XEvent *event)
|
|
|
482 {
|
|
|
483 return( VERT(w) ? event->xbutton.x : event->xbutton.y );
|
|
|
484 }
|
|
|
485
|
|
|
486 static int event_y(XlwScrollBarWidget w, XEvent *event)
|
|
|
487 {
|
|
|
488 return( VERT(w) ? event->xbutton.y : event->xbutton.x );
|
|
|
489 }
|
|
|
490
|
|
|
491 /*
|
|
|
492 ** Safe addition and subtraction
|
|
|
493 */
|
|
|
494 static int safe_add(int a, int b)
|
|
|
495 {
|
|
|
496 if( a > 0 && INT_MAX - a < b ) return( INT_MAX );
|
|
|
497 else return( a + b );
|
|
|
498 }
|
|
|
499
|
|
|
500 static int safe_subtract(int a, int b)
|
|
|
501 {
|
|
|
502 if( a < 0 && -(INT_MIN - a) < b ) return( INT_MIN );
|
|
|
503 else return( a - b );
|
|
|
504 }
|
|
|
505
|
|
|
506 static int knob_style(XlwScrollBarWidget w)
|
|
|
507 {
|
|
|
508 if( w->sb.knobStyle )
|
|
|
509 {
|
|
|
510 if( w->sb.knobStyle[0] == 'd' )
|
|
|
511 {
|
|
|
512 return( KNOB_DIMPLE );
|
|
|
513 }
|
|
|
514 }
|
|
|
515 return( KNOB_PLAIN );
|
|
|
516 }
|
|
|
517
|
|
|
518 static Boolean arrow_same_end(XlwScrollBarWidget w)
|
|
|
519 {
|
|
|
520 if( w->sb.arrowPosition && w->sb.arrowPosition[0] == 's' )
|
|
|
521 {
|
|
|
522 return( True );
|
|
|
523 }
|
|
|
524 return( False );
|
|
|
525 }
|
|
|
526
|
|
|
527 /*
|
|
|
528 ** GC and Pixel allocation
|
|
|
529 */
|
|
|
530 static GC get_gc(XlwScrollBarWidget w, Pixel fg, Pixel bg, Pixmap pm)
|
|
|
531 {
|
|
|
532 XGCValues values;
|
|
|
533 XtGCMask mask;
|
|
|
534
|
|
|
535 if (pm == w->sb.grayPixmap) {
|
|
|
536 /* If we're using the gray pixmap, guarantee white on black ...
|
|
|
537 * otherwise, we could end up with something odd like grey on white
|
|
|
538 * when we're on a color display that ran out of color cells
|
|
|
539 */
|
|
|
540
|
|
|
541 fg = WhitePixelOfScreen(DefaultScreenOfDisplay(XtDisplay(w)));
|
|
|
542 bg = BlackPixelOfScreen(DefaultScreenOfDisplay(XtDisplay(w)));
|
|
|
543 }
|
|
|
544
|
|
|
545 values.foreground = fg;
|
|
|
546 values.background = bg;
|
|
|
547 values.fill_style = FillOpaqueStippled;
|
|
|
548 values.stipple = pm;
|
|
|
549 mask = GCForeground | GCBackground |
|
|
|
550 ( pm == None ? 0 : GCStipple | GCFillStyle );
|
|
|
551 return( XtGetGC((Widget)w, mask, &values) );
|
|
|
552 }
|
|
|
553
|
|
|
554 /* Replacement for XAllocColor() that tries to return the nearest
|
|
|
555 available color if the colormap is full. From FSF Emacs. */
|
|
|
556
|
|
|
557 static int
|
|
|
558 allocate_nearest_color (Display *display, Colormap screen_colormap,
|
|
|
559 XColor *color_def)
|
|
|
560 {
|
|
|
561 int status;
|
|
|
562
|
|
|
563 status = XAllocColor (display, screen_colormap, color_def);
|
|
|
564 if (!status)
|
|
|
565 {
|
|
|
566 /* If we got to this point, the colormap is full, so we're
|
|
|
567 going to try and get the next closest color.
|
|
|
568 The algorithm used is a least-squares matching, which is
|
|
|
569 what X uses for closest color matching with StaticColor visuals. */
|
|
|
570
|
|
|
571 XColor *cells;
|
|
|
572 int no_cells;
|
|
|
573 int nearest;
|
|
|
574 long nearest_delta, trial_delta;
|
|
|
575 int x;
|
|
|
576
|
|
|
577 no_cells = XDisplayCells (display, XDefaultScreen (display));
|
|
|
578 /* Don't use alloca here because lwlib doesn't have the
|
|
|
579 necessary configuration information that src does. */
|
|
|
580 cells = (XColor *) malloc (sizeof (XColor) * no_cells);
|
|
|
581
|
|
|
582 for (x = 0; x < no_cells; x++)
|
|
|
583 cells[x].pixel = x;
|
|
|
584
|
|
|
585 XQueryColors (display, screen_colormap, cells, no_cells);
|
|
|
586 nearest = 0;
|
|
|
587 /* I'm assuming CSE so I'm not going to condense this. */
|
|
|
588 nearest_delta = ((((color_def->red >> 8) - (cells[0].red >> 8))
|
|
|
589 * ((color_def->red >> 8) - (cells[0].red >> 8)))
|
|
|
590 +
|
|
|
591 (((color_def->green >> 8) - (cells[0].green >> 8))
|
|
|
592 * ((color_def->green >> 8) - (cells[0].green >> 8)))
|
|
|
593 +
|
|
|
594 (((color_def->blue >> 8) - (cells[0].blue >> 8))
|
|
|
595 * ((color_def->blue >> 8) - (cells[0].blue >> 8))));
|
|
|
596 for (x = 1; x < no_cells; x++)
|
|
|
597 {
|
|
|
598 trial_delta = ((((color_def->red >> 8) - (cells[x].red >> 8))
|
|
|
599 * ((color_def->red >> 8) - (cells[x].red >> 8)))
|
|
|
600 +
|
|
|
601 (((color_def->green >> 8) - (cells[x].green >> 8))
|
|
|
602 * ((color_def->green >> 8) - (cells[x].green >> 8)))
|
|
|
603 +
|
|
|
604 (((color_def->blue >> 8) - (cells[x].blue >> 8))
|
|
|
605 * ((color_def->blue >> 8) - (cells[x].blue >> 8))));
|
|
|
606 if (trial_delta < nearest_delta)
|
|
|
607 {
|
|
|
608 nearest = x;
|
|
|
609 nearest_delta = trial_delta;
|
|
|
610 }
|
|
|
611 }
|
|
|
612 color_def->red = cells[nearest].red;
|
|
|
613 color_def->green = cells[nearest].green;
|
|
|
614 color_def->blue = cells[nearest].blue;
|
|
|
615 status = XAllocColor (display, screen_colormap, color_def);
|
|
|
616
|
|
|
617 free (cells);
|
|
|
618 }
|
|
|
619
|
|
|
620 return status;
|
|
|
621 }
|
|
|
622
|
|
|
623 static void make_shadow_pixels(XlwScrollBarWidget w)
|
|
|
624 {
|
|
|
625 Display *dpy = XtDisplay((Widget) w);
|
|
|
626 Colormap cmap = w->core.colormap;
|
|
|
627 XColor topc, botc;
|
|
|
628 int top_frobbed, bottom_frobbed;
|
|
|
629 Pixel bg, fg;
|
|
|
630
|
|
|
631 top_frobbed = bottom_frobbed = 0;
|
|
|
632
|
|
|
633 bg = w->core.background_pixel;
|
|
|
634 fg = w->sb.foreground;
|
|
|
635
|
|
|
636 if( w->sb.topShadowColor == (Pixel)~0) w->sb.topShadowColor = bg;
|
|
|
637 if( w->sb.bottomShadowColor == (Pixel)~0) w->sb.bottomShadowColor = fg;
|
|
|
638
|
|
|
639 if( w->sb.topShadowColor == bg || w->sb.topShadowColor == fg )
|
|
|
640 {
|
|
|
641 topc.pixel = bg;
|
|
|
642 XQueryColor( dpy, cmap, &topc );
|
|
|
643 /* don't overflow/wrap! */
|
|
|
644 topc.red = MINL(65535, topc.red * 1.2);
|
|
|
645 topc.green = MINL(65535, topc.green * 1.2);
|
|
|
646 topc.blue = MINL(65535, topc.blue * 1.2);
|
|
|
647 if( allocate_nearest_color(dpy, cmap, &topc) )
|
|
|
648 {
|
|
|
649 if( topc.pixel == bg )
|
|
|
650 {
|
|
|
651 XFreeColors( dpy, cmap, &topc.pixel, 1, 0);
|
|
|
652 topc.red = MINL(65535, topc.red + 0x8000);
|
|
|
653 topc.green = MINL(65535, topc.green + 0x8000);
|
|
|
654 topc.blue = MINL(65535, topc.blue + 0x8000);
|
|
|
655 if( allocate_nearest_color(dpy, cmap, &topc) )
|
|
|
656 {
|
|
|
657 w->sb.topShadowColor = topc.pixel;
|
|
|
658 }
|
|
|
659 }
|
|
|
660 else
|
|
|
661 {
|
|
|
662 w->sb.topShadowColor = topc.pixel;
|
|
|
663 }
|
|
|
664
|
|
|
665 top_frobbed = 1;
|
|
|
666 }
|
|
|
667 }
|
|
|
668
|
|
|
669 if( w->sb.bottomShadowColor == fg || w->sb.bottomShadowColor == bg )
|
|
|
670 {
|
|
|
671 botc.pixel = bg;
|
|
|
672 XQueryColor( dpy, cmap, &botc );
|
|
|
673 botc.red *= 0.6;
|
|
|
674 botc.green *= 0.6;
|
|
|
675 botc.blue *= 0.6;
|
|
|
676 if( allocate_nearest_color(dpy, cmap, &botc) )
|
|
|
677 {
|
|
|
678 if( botc.pixel == bg )
|
|
|
679 {
|
|
|
680 XFreeColors( dpy, cmap, &botc.pixel, 1, 0);
|
|
|
681 botc.red = MINL(65535, botc.red + 0x4000);
|
|
|
682 botc.green = MINL(65535, botc.green + 0x4000);
|
|
|
683 botc.blue = MINL(65535, botc.blue + 0x4000);
|
|
|
684 if( allocate_nearest_color(dpy, cmap, &botc) )
|
|
|
685 {
|
|
|
686 w->sb.bottomShadowColor = botc.pixel;
|
|
|
687 }
|
|
|
688 }
|
|
|
689 else
|
|
|
690 {
|
|
|
691 w->sb.bottomShadowColor = botc.pixel;
|
|
|
692 }
|
|
|
693 bottom_frobbed = 1;
|
|
|
694 }
|
|
|
695 }
|
|
|
696
|
|
|
697 if( top_frobbed && bottom_frobbed )
|
|
|
698 {
|
|
|
699 int top_avg = ((topc.red / 3) + (topc.green / 3) + (topc.blue / 3));
|
|
|
700 int bot_avg = ((botc.red / 3) + (botc.green / 3) + (botc.blue / 3));
|
|
|
701 if( bot_avg > top_avg )
|
|
|
702 {
|
|
|
703 Pixel tmp = w->sb.topShadowColor;
|
|
|
704 w->sb.topShadowColor = w->sb.bottomShadowColor;
|
|
|
705 w->sb.bottomShadowColor = tmp;
|
|
|
706 }
|
|
|
707 else if( topc.pixel == botc.pixel )
|
|
|
708 {
|
|
|
709 if( botc.pixel == bg )
|
|
|
710 w->sb.topShadowColor = bg;
|
|
|
711 else
|
|
|
712 w->sb.bottomShadowColor = fg;
|
|
|
713 }
|
|
|
714 }
|
|
|
715
|
|
|
716 if (w->sb.topShadowColor == w->core.background_pixel ||
|
|
|
717 w->sb.bottomShadowColor == w->core.background_pixel) {
|
|
|
718
|
|
|
719 /* Assume we're in mono. This code should be okay even if we're
|
|
|
720 * really in color but just short on color cells -- We want the
|
|
|
721 * following behavior, which has been empirically determined to
|
|
|
722 * work well for all fg/bg combinations in mono: If the trough
|
|
|
723 * and thumb are BOTH black, then use a white top shadow and a
|
|
|
724 * grey bottom shadow, otherwise use a grey top shadow and a
|
|
|
725 * black bottom shadow.
|
|
|
726 */
|
|
|
727
|
|
|
728 Pixel white = WhitePixelOfScreen(DefaultScreenOfDisplay(XtDisplay(w)));
|
|
|
729 Pixel black = BlackPixelOfScreen(DefaultScreenOfDisplay(XtDisplay(w)));
|
|
|
730
|
|
|
731 /* Note: core.background_pixel is the color of the thumb ... */
|
|
|
732
|
|
|
733 if (w->core.background_pixel == black &&
|
|
|
734 w->sb.troughColor == black) {
|
|
|
735
|
|
|
736 w->sb.topShadowColor = white;
|
|
|
737 w->sb.bottomShadowPixmap = w->sb.grayPixmap;
|
|
|
738
|
|
|
739 } else {
|
|
|
740
|
|
|
741 w->sb.topShadowPixmap = w->sb.grayPixmap;
|
|
|
742 w->sb.bottomShadowColor = black;
|
|
|
743 }
|
|
|
744
|
|
|
745 }
|
|
|
746
|
|
|
747
|
|
|
748 }
|
|
|
749
|
|
|
750 static void make_trough_pixel(XlwScrollBarWidget w)
|
|
|
751 {
|
|
|
752 Display *dpy = XtDisplay((Widget) w);
|
|
|
753 Colormap cmap = DefaultColormapOfScreen( XtScreen((Widget)w) );
|
|
|
754 XColor troughC;
|
|
|
755
|
|
|
756 if( w->sb.troughColor == (Pixel)~0) w->sb.troughColor = w->core.background_pixel;
|
|
|
757
|
|
|
758 if( w->sb.troughColor == w->core.background_pixel )
|
|
|
759 {
|
|
|
760 troughC.pixel = w->core.background_pixel;
|
|
|
761 XQueryColor( dpy, cmap, &troughC );
|
|
|
762 troughC.red *= 0.8;
|
|
|
763 troughC.green *= 0.8;
|
|
|
764 troughC.blue *= 0.8;
|
|
|
765 if( allocate_nearest_color(dpy, cmap, &troughC) )
|
|
|
766 {
|
|
|
767 w->sb.troughColor = troughC.pixel;
|
|
|
768 }
|
|
|
769 }
|
|
|
770 }
|
|
|
771
|
|
|
772 /*
|
|
|
773 ** Draw 3d border
|
|
|
774 */
|
|
|
775 static void draw_shadows(Display *dpy, Drawable d,
|
|
|
776 GC shine_gc, GC shadow_gc,
|
|
|
777 int x, int y, int width, int height,
|
|
|
778 int shadowT)
|
|
|
779 {
|
|
|
780 XSegment shine[10], shadow[10];
|
|
|
781 int i;
|
|
|
782
|
|
|
783 if(shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
784 if(shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
785 if(shadowT <= 0) return;
|
|
|
786
|
|
|
787 for(i = 0; i < shadowT; i++)
|
|
|
788 {
|
|
|
789 /* Top segments */
|
|
|
790 shine[i].x1 = x;
|
|
|
791 shine[i].y2 = shine[i].y1 = y + i;
|
|
|
792 shine[i].x2 = x + width - i - 1;
|
|
|
793 /* Left segments */
|
|
|
794 shine[i + shadowT].x2 = shine[i + shadowT].x1 = x + i;
|
|
|
795 shine[i + shadowT].y1 = y + shadowT;
|
|
|
796 shine[i + shadowT].y2 = y + height - i - 1;
|
|
|
797
|
|
|
798 /* Bottom segments */
|
|
|
799 shadow[i].x1 = x + i;
|
|
|
800 shadow[i].y2 = shadow[i].y1 = y + height - i - 1;
|
|
|
801 shadow[i].x2 = x + width - 1 ;
|
|
|
802 /* Right segments */
|
|
|
803 shadow[i + shadowT].x2 = shadow[i + shadowT].x1 = x + width - i - 1;
|
|
|
804 shadow[i + shadowT].y1 = y + i + 1;
|
|
|
805 shadow[i + shadowT].y2 = y + height - 1 ;
|
|
|
806 }
|
|
|
807
|
|
|
808 XDrawSegments( dpy, d, shine_gc, shine, shadowT * 2 );
|
|
|
809 XDrawSegments( dpy, d, shadow_gc, shadow, shadowT * 2 );
|
|
|
810 }
|
|
|
811
|
|
|
812 /*
|
|
|
813 ** Draw 3d arrows, left, up, down, and right
|
|
|
814 */
|
|
|
815 static int make_vert_seg(XSegment *seg, int x1, int y1, int x2, int y2, int shadowT)
|
|
|
816 {
|
|
|
817 int i;
|
|
|
818
|
|
|
819 for(i=0; i<shadowT; i++)
|
|
|
820 {
|
|
|
821 seg[i].x1 = x1;
|
|
|
822 seg[i].y1 = y1 + i;
|
|
|
823 seg[i].x2 = x2;
|
|
|
824 seg[i].y2 = y2 + i;
|
|
|
825 }
|
|
|
826 return( shadowT );
|
|
|
827 }
|
|
|
828
|
|
|
829 static int make_hor_seg(XSegment *seg, int x1, int y1, int x2, int y2, int shadowT)
|
|
|
830 {
|
|
|
831 int i;
|
|
|
832
|
|
|
833 for(i=0; i<shadowT; i++)
|
|
|
834 {
|
|
|
835 seg[i].x1 = x1 + i;
|
|
|
836 seg[i].y1 = y1;
|
|
|
837 seg[i].x2 = x2 + i;
|
|
|
838 seg[i].y2 = y2;
|
|
|
839 }
|
|
|
840 return( shadowT );
|
|
|
841 }
|
|
|
842
|
|
|
843 static void draw_arrow_up(Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
844 int x, int y, int width, int height, int shadowT)
|
|
|
845 {
|
|
|
846 XSegment shine[10], shadow[10];
|
|
|
847 XPoint triangle[3];
|
|
|
848 int mid;
|
|
|
849
|
|
|
850 mid = width / 2;
|
|
|
851
|
|
|
852 if(shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
853 if(shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
854 if(shadowT <= 0) shadowT = 0;
|
|
|
855
|
|
|
856 /* / */
|
|
|
857 make_vert_seg( shine,
|
|
|
858 x, y + height - shadowT - 1,
|
|
|
859 x + mid, y, shadowT );
|
|
|
860 /* _\ */
|
|
|
861 make_vert_seg( shadow,
|
|
|
862 x, y + height - shadowT - 1,
|
|
|
863 x + width - 1, y + height - shadowT - 1, shadowT );
|
|
|
864 make_vert_seg( shadow + shadowT,
|
|
|
865 x + mid, y,
|
|
|
866 x + width - 1, y + height - shadowT - 1, shadowT );
|
|
|
867
|
|
|
868 triangle[0].x = x;
|
|
|
869 triangle[0].y = y + height - 1;
|
|
|
870 triangle[1].x = x + mid;
|
|
|
871 triangle[1].y = y;
|
|
|
872 triangle[2].x = x + width - 1;
|
|
|
873 triangle[2].y = y + height - 1;
|
|
|
874
|
|
|
875 XFillPolygon( dpy, win, bgGC, triangle, 3, Convex, ArcChord );
|
|
|
876
|
|
|
877 XDrawSegments( dpy, win, shadowGC, shadow, shadowT * 2 );
|
|
|
878 XDrawSegments( dpy, win, shineGC, shine, shadowT );
|
|
|
879 }
|
|
|
880
|
|
|
881 static void draw_arrow_left(Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
882 int x, int y, int width, int height, int shadowT)
|
|
|
883 {
|
|
|
884 XSegment shine[10], shadow[10];
|
|
|
885 XPoint triangle[3];
|
|
|
886 int mid;
|
|
|
887
|
|
|
888 mid = width / 2;
|
|
|
889
|
|
|
890 if(shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
891 if(shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
892 if(shadowT <= 0) shadowT = 0;
|
|
|
893
|
|
|
894 /* / */
|
|
|
895 make_hor_seg( shine,
|
|
|
896 x, y + mid,
|
|
|
897 x + width - shadowT - 1, y, shadowT );
|
|
|
898 /* \| */
|
|
|
899 make_hor_seg( shadow,
|
|
|
900 x, y + mid,
|
|
|
901 x + width - shadowT - 1, y + height - 1, shadowT );
|
|
|
902 make_hor_seg( shadow + shadowT,
|
|
|
903 x + width - shadowT - 1, y,
|
|
|
904 x + width - shadowT - 1, y + height - 1, shadowT );
|
|
|
905
|
|
|
906 triangle[0].x = x + width - 1;
|
|
|
907 triangle[0].y = y + height - 1;
|
|
|
908 triangle[1].x = x;
|
|
|
909 triangle[1].y = y + mid;
|
|
|
910 triangle[2].x = x + width - 1;
|
|
|
911 triangle[2].y = y;
|
|
|
912
|
|
|
913 XFillPolygon( dpy, win, bgGC, triangle, 3, Convex, ArcChord );
|
|
|
914
|
|
|
915 XDrawSegments( dpy, win, shadowGC, shadow, shadowT * 2 );
|
|
|
916 XDrawSegments( dpy, win, shineGC, shine, shadowT );
|
|
|
917 }
|
|
|
918
|
|
|
919 static void draw_arrow_down(Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
920 int x, int y, int width, int height, int shadowT)
|
|
|
921 {
|
|
|
922 XSegment shine[10], shadow[10];
|
|
|
923 XPoint triangle[3];
|
|
|
924 int mid;
|
|
|
925
|
|
|
926 mid = width / 2;
|
|
|
927
|
|
|
928 if(shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
929 if(shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
930 if(shadowT <= 0) shadowT = 0;
|
|
|
931
|
|
|
932 /* \- */
|
|
|
933 make_vert_seg( shine,
|
|
|
934 x, y,
|
|
|
935 x + mid, y + height - shadowT - 1, shadowT );
|
|
|
936 make_vert_seg( shine + shadowT,
|
|
|
937 x, y,
|
|
|
938 x + width - 1, y, shadowT );
|
|
|
939 /* / */
|
|
|
940 make_vert_seg( shadow,
|
|
|
941 x + width - 1, y,
|
|
|
942 x + mid, y + height - shadowT - 1, shadowT );
|
|
|
943
|
|
|
944 triangle[0].x = x;
|
|
|
945 triangle[0].y = y;
|
|
|
946 triangle[1].x = x + mid;
|
|
|
947 triangle[1].y = y + height - 1;
|
|
|
948 triangle[2].x = x + width - 1;
|
|
|
949 triangle[2].y = y;
|
|
|
950
|
|
|
951 XFillPolygon( dpy, win, bgGC, triangle, 3, Convex, ArcChord );
|
|
|
952
|
|
|
953 XDrawSegments( dpy, win, shadowGC, shadow, shadowT );
|
|
|
954 XDrawSegments( dpy, win, shineGC, shine, shadowT * 2 );
|
|
|
955 }
|
|
|
956
|
|
|
957 static void draw_arrow_right(Display *dpy, Drawable win, GC bgGC, GC shineGC, GC shadowGC,
|
|
|
958 int x, int y, int width, int height, int shadowT)
|
|
|
959 {
|
|
|
960 XSegment shine[10], shadow[10];
|
|
|
961 XPoint triangle[3];
|
|
|
962 int mid;
|
|
|
963
|
|
|
964 mid = width / 2;
|
|
|
965
|
|
|
966 if(shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
967 if(shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
968 if(shadowT <= 0) shadowT = 0;
|
|
|
969
|
|
|
970 /* |\ */
|
|
|
971 make_hor_seg( shine,
|
|
|
972 x, y,
|
|
|
973 x + width - shadowT - 1, y + mid, shadowT );
|
|
|
974 make_hor_seg( shine + shadowT,
|
|
|
975 x, y,
|
|
|
976 x, y + height -1, shadowT );
|
|
|
977 /* / */
|
|
|
978 make_hor_seg( shadow,
|
|
|
979 x, y + height -1,
|
|
|
980 x + width - shadowT - 1, y + mid, shadowT );
|
|
|
981
|
|
|
982 triangle[0].x = x + 1;
|
|
|
983 triangle[0].y = y + height - 1;
|
|
|
984 triangle[1].x = x + width - 1;
|
|
|
985 triangle[1].y = y + mid;
|
|
|
986 triangle[2].x = x + 1;
|
|
|
987 triangle[2].y = y;
|
|
|
988
|
|
|
989 XFillPolygon( dpy, win, bgGC, triangle, 3, Convex, ArcChord );
|
|
|
990
|
|
|
991 XDrawSegments( dpy, win, shadowGC, shadow, shadowT );
|
|
|
992 XDrawSegments( dpy, win, shineGC, shine, shadowT * 2 );
|
|
|
993 }
|
|
|
994
|
|
|
995 static void draw_dimple(Display *dpy, Drawable win, GC shine, GC shadow,
|
|
|
996 int x, int y, int width, int height)
|
|
|
997 {
|
|
|
998 XDrawArc(dpy, win, shine, x, y, width, height, 46*64, 180*64);
|
|
|
999 XDrawArc(dpy, win, shadow, x, y, width, height, 45*64, -179*64);
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 /*
|
|
|
1003 ** Scrollbar values -> pixels, pixels -> scrollbar values
|
|
|
1004 */
|
|
|
1005
|
|
|
1006 static void seg_pixel_sizes(XlwScrollBarWidget w, int *above_return, int *ss_return,
|
|
|
1007 int *below_return)
|
|
|
1008 {
|
|
|
1009 float total, height, fuz;
|
|
|
1010 int value;
|
|
|
1011 int above, ss, below;
|
|
|
1012
|
|
|
1013 height= widget_h(w);
|
|
|
1014 if( w->sb.showArrows ) height -= (2*arrow_h(w));
|
|
|
1015
|
|
|
1016 value = w->sb.value - w->sb.minimum;
|
|
|
1017
|
|
|
1018 total = w->sb.maximum - w->sb.minimum;
|
|
|
1019 fuz = total / 2;
|
|
|
1020
|
|
|
1021 ss = ((height * w->sb.sliderSize + fuz) / total);
|
|
|
1022 above = ((height * value + fuz) / total);
|
|
|
1023 below = ((height) - (ss + above));
|
|
|
1024
|
|
|
1025 /* Dont' let knob get smaller than SS_MIN */
|
|
|
1026 if( ss < SS_MIN )
|
|
|
1027 {
|
|
|
1028 /* add a percent amount for interger rounding */
|
|
|
1029 float tmp = ((((float)(SS_MIN - ss) * (float)value)) / total) + 0.5;
|
|
|
1030
|
|
|
1031 above -= (int)tmp;
|
|
|
1032 ss = SS_MIN;
|
|
|
1033 below = ((height) - (ss + above));
|
|
|
1034
|
|
|
1035 if( above < 0 )
|
|
|
1036 {
|
|
|
1037 above = 0;
|
|
|
1038 below = height - ss;
|
|
|
1039 }
|
|
|
1040 if( below < 0 )
|
|
|
1041 {
|
|
|
1042 above = height - ss;
|
|
|
1043 below = 0;
|
|
|
1044 }
|
|
|
1045 if( ss > height )
|
|
|
1046 {
|
|
|
1047 above = 0;
|
|
|
1048 ss = height;
|
|
|
1049 below = 0;
|
|
|
1050 }
|
|
|
1051 }
|
|
|
1052
|
|
|
1053 *above_return = above;
|
|
|
1054 *ss_return = ss;
|
|
|
1055 *below_return = below;
|
|
|
1056
|
|
|
1057 CHECK(w);
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 static void verify_values(XlwScrollBarWidget w)
|
|
|
1061 {
|
|
|
1062 int total = w->sb.maximum - w->sb.minimum;
|
|
|
1063
|
|
|
1064 if( w->sb.sliderSize > total )
|
|
|
1065 {
|
|
|
1066 w->sb.sliderSize = total;
|
|
|
1067 }
|
|
|
1068 if( w->sb.pageIncrement > total )
|
|
|
1069 {
|
|
|
1070 w->sb.pageIncrement = total;
|
|
|
1071 }
|
|
|
1072 if( w->sb.increment > total )
|
|
|
1073 {
|
|
|
1074 w->sb.increment = total;
|
|
|
1075 }
|
|
|
1076 if( w->sb.value < w->sb.minimum )
|
|
|
1077 {
|
|
|
1078 w->sb.value = w->sb.minimum;
|
|
|
1079 }
|
|
|
1080 if( w->sb.value > w->sb.maximum - w->sb.sliderSize)
|
|
|
1081 {
|
|
|
1082 w->sb.value = w->sb.maximum - w->sb.sliderSize;
|
|
|
1083 }
|
|
|
1084 }
|
|
|
1085
|
|
|
1086 static int value_from_pixel(XlwScrollBarWidget w, int above)
|
|
|
1087 {
|
|
|
1088 float total, height, fuz;
|
|
|
1089 int value, ss;
|
|
|
1090
|
|
|
1091 height= widget_h(w);
|
|
|
1092 if( w->sb.showArrows ) height -= (2*arrow_h(w));
|
|
|
1093
|
|
|
1094 total = w->sb.maximum - w->sb.minimum;
|
|
|
1095 fuz = height / 2;
|
|
|
1096
|
|
|
1097 ss = ((height * w->sb.sliderSize + (total / 2)) / total);
|
|
|
1098
|
|
|
1099 if( ss < SS_MIN )
|
|
|
1100 {
|
|
|
1101 /* add a percent amount for interger rounding */
|
|
|
1102 above += ((((SS_MIN - ss) * above) + fuz) / height);
|
|
|
1103 }
|
|
|
1104
|
|
|
1105 {
|
|
|
1106 /* Prevent SIGFPE's that would occur if we don't truncate the
|
|
|
1107 value. */
|
|
|
1108 float floatval = w->sb.minimum + ((float)(above * total + fuz ) / height);
|
|
|
1109 if (floatval >= (float) INT_MAX)
|
|
|
1110 value = INT_MAX;
|
|
|
1111 else if (floatval <= (float) INT_MIN)
|
|
|
1112 value = INT_MIN;
|
|
|
1113 else
|
|
|
1114 value = floatval;
|
|
|
1115 }
|
|
|
1116
|
|
|
1117 return( value );
|
|
|
1118 }
|
|
|
1119
|
|
|
1120
|
|
|
1121 static void redraw_dimple(XlwScrollBarWidget w, Display *dpy, Window win,
|
|
|
1122 int x, int y, int width, int height)
|
|
|
1123 {
|
|
|
1124 GC shine, shadow;
|
|
|
1125 int shadowT, size;
|
|
|
1126
|
|
|
1127 if( KNOB_DIMPLE == knob_style(w) )
|
|
|
1128 {
|
|
|
1129 if( w->sb.armed == ARM_KNOB )
|
|
|
1130 {
|
|
|
1131 shine = w->sb.bottomShadowGC;
|
|
|
1132 shadow = w->sb.topShadowGC;
|
|
|
1133 }
|
|
|
1134 else
|
|
|
1135 {
|
|
|
1136 shine = w->sb.topShadowGC;
|
|
|
1137 shadow = w->sb.bottomShadowGC;
|
|
|
1138 }
|
|
|
1139
|
|
|
1140 shadowT = w->sb.shadowThickness;
|
|
|
1141
|
|
|
1142 x += shadowT;
|
|
|
1143 y += shadowT;
|
|
|
1144 width -= 2*shadowT;
|
|
|
1145 height -= 2*shadowT;
|
|
|
1146
|
|
|
1147 size = (width < height ? width : height) * 3 / 4;
|
|
|
1148
|
|
|
1149 if( size%2 != (width < height ? width : height)%2 ) size--;
|
|
|
1150
|
|
|
1151 DBUG (fprintf(stderr, "%d %d\n",
|
|
|
1152 x + (width / 2) - (size / 2) - 2*shadowT,
|
|
|
1153 width - size - shadowT));
|
|
|
1154
|
|
|
1155 draw_dimple( dpy, win, shine, shadow,
|
|
|
1156 x + (width / 2) - (size / 2),
|
|
|
1157 y + (height / 2) - (size / 2),
|
|
|
1158 size, size );
|
|
|
1159 }
|
|
|
1160 }
|
|
|
1161
|
|
|
1162 static void draw_knob(XlwScrollBarWidget w, int above, int ss, int below)
|
|
|
1163 {
|
|
|
1164 Display *dpy = XtDisplay((Widget)w);
|
|
|
1165 Window win = XtWindow((Widget)w);
|
|
|
1166 int x, y, width, height;
|
|
|
1167 int shadowT;
|
|
|
1168
|
|
|
1169 x = widget_x(w);
|
|
|
1170 y = widget_y(w);
|
|
|
1171 width = widget_w(w);
|
|
|
1172 height = widget_h(w);
|
|
|
1173
|
|
|
1174 shadowT = w->sb.shadowThickness;
|
|
|
1175
|
|
|
1176 if(shadowT > (width / 2)) shadowT = (width / 2);
|
|
|
1177 if(shadowT > (height / 2)) shadowT = (height / 2);
|
|
|
1178 if(shadowT <= 0) return;
|
|
|
1179
|
|
|
1180 if( w->sb.showArrows && !arrow_same_end(w) ) y += (arrow_h(w));
|
|
|
1181
|
|
|
1182 /* trough above knob */
|
|
|
1183 if( above > 0 )
|
|
|
1184 {
|
|
|
1185 if( VERT(w) )
|
|
|
1186 XClearArea( dpy, win, x, y, width, above, False );
|
|
|
1187 else
|
|
|
1188 XClearArea( dpy, win, y, x, above, width, False );
|
|
|
1189 }
|
|
|
1190
|
|
|
1191 /* knob */
|
|
|
1192 if( VERT(w) )
|
|
|
1193 {
|
|
|
1194 draw_shadows( dpy, win, w->sb.topShadowGC, w->sb.bottomShadowGC,
|
|
|
1195 x, y + above, width, ss, shadowT);
|
|
|
1196 XFillRectangle( dpy, win,
|
|
|
1197 w->sb.backgroundGC,
|
|
|
1198 x+shadowT, y + above + shadowT, width-2*shadowT, ss-2*shadowT );
|
|
|
1199 redraw_dimple(w, dpy, win, x, y + above, width, ss);
|
|
|
1200 }
|
|
|
1201 else
|
|
|
1202 {
|
|
|
1203 draw_shadows( dpy, win, w->sb.topShadowGC, w->sb.bottomShadowGC,
|
|
|
1204 y + above, x, ss, width, shadowT);
|
|
|
1205 XFillRectangle( dpy, win,
|
|
|
1206 w->sb.backgroundGC,
|
|
|
1207 y + above + shadowT, x+shadowT, ss-2*shadowT, width-2*shadowT );
|
|
|
1208 redraw_dimple(w, dpy, win, y + above, x, ss, width);
|
|
|
1209 }
|
|
|
1210
|
|
|
1211 /* trough below knob */
|
|
|
1212 if( below > 0 )
|
|
|
1213 {
|
|
|
1214 if( VERT(w) )
|
|
|
1215 XClearArea( dpy, win, x, y + above + ss, width, below, False );
|
|
|
1216 else
|
|
|
1217 XClearArea( dpy, win, y + above + ss, x, below, width, False );
|
|
|
1218 }
|
|
|
1219
|
|
|
1220 CHECK(w);
|
|
|
1221 }
|
|
|
1222
|
|
|
1223 static void redraw_up_arrow(XlwScrollBarWidget w, Boolean armed, Boolean clear_behind)
|
|
|
1224 {
|
|
|
1225 Display *dpy = XtDisplay((Widget)w);
|
|
|
1226 Window win = XtWindow((Widget)w);
|
|
|
1227 GC bg, shine, shadow;
|
|
|
1228 int x, y, width, height, arrow_height, shadowT;
|
|
|
1229
|
|
|
1230 x = widget_x(w);
|
|
|
1231 y = widget_y(w);
|
|
|
1232 width = widget_w(w);
|
|
|
1233 height = widget_h(w);
|
|
|
1234 arrow_height = arrow_h(w);
|
|
|
1235
|
|
|
1236 shadowT = w->sb.shadowThickness;
|
|
|
1237 bg = w->sb.backgroundGC;
|
|
|
1238
|
|
|
1239 if( armed )
|
|
|
1240 {
|
|
|
1241 shine = w->sb.bottomShadowGC;
|
|
|
1242 shadow = w->sb.topShadowGC;
|
|
|
1243 }
|
|
|
1244 else
|
|
|
1245 {
|
|
|
1246 shine = w->sb.topShadowGC;
|
|
|
1247 shadow = w->sb.bottomShadowGC;
|
|
|
1248 }
|
|
|
1249
|
|
|
1250 if( VERT(w) )
|
|
|
1251 {
|
|
|
1252 if( arrow_same_end(w) )
|
|
|
1253 {
|
|
|
1254 y += height - 2*arrow_h(w) + 2;
|
|
|
1255 }
|
|
|
1256 if( clear_behind )
|
|
|
1257 XClearArea( dpy, win, x, y, width, arrow_height + 1, False );
|
|
|
1258 draw_arrow_up( dpy, win, bg, shine, shadow,
|
|
|
1259 x + (width - arrow_height)/2, y,
|
|
|
1260 arrow_height, arrow_height, shadowT );
|
|
|
1261 }
|
|
|
1262 else
|
|
|
1263 {
|
|
|
1264 if( arrow_same_end(w) )
|
|
|
1265 {
|
|
|
1266 y += height - 2*arrow_h(w);
|
|
|
1267 }
|
|
|
1268 if( clear_behind )
|
|
|
1269 XClearArea( dpy, win, y, x, arrow_height + 1, height, False );
|
|
|
1270 draw_arrow_left( dpy, win, bg, shine, shadow,
|
|
|
1271 y, x + (width - arrow_height)/2,
|
|
|
1272 arrow_height, arrow_height, shadowT );
|
|
|
1273 }
|
|
|
1274 }
|
|
|
1275
|
|
|
1276 static void redraw_down_arrow(XlwScrollBarWidget w, Boolean armed, Boolean clear_behind)
|
|
|
1277 {
|
|
|
1278 Display *dpy = XtDisplay((Widget)w);
|
|
|
1279 Window win = XtWindow((Widget)w);
|
|
|
1280 GC bg, shine, shadow;
|
|
|
1281 int x, y, width, height, arrow_height, shadowT;
|
|
|
1282
|
|
|
1283 x = widget_x(w);
|
|
|
1284 y = widget_y(w);
|
|
|
1285 width = widget_w(w);
|
|
|
1286 height = widget_h(w);
|
|
|
1287 arrow_height = arrow_h(w);
|
|
|
1288
|
|
|
1289 shadowT = w->sb.shadowThickness;
|
|
|
1290 bg = w->sb.backgroundGC;
|
|
|
1291
|
|
|
1292 if( armed )
|
|
|
1293 {
|
|
|
1294 shine = w->sb.bottomShadowGC;
|
|
|
1295 shadow = w->sb.topShadowGC;
|
|
|
1296 }
|
|
|
1297 else
|
|
|
1298 {
|
|
|
1299 shine = w->sb.topShadowGC;
|
|
|
1300 shadow = w->sb.bottomShadowGC;
|
|
|
1301 }
|
|
|
1302
|
|
|
1303 if( VERT(w) )
|
|
|
1304 {
|
|
|
1305 if( clear_behind )
|
|
|
1306 XClearArea( dpy, win, x, y + height - arrow_height, width, arrow_height + 1, False );
|
|
|
1307 draw_arrow_down( dpy, win, bg, shine, shadow,
|
|
|
1308 x + (width - arrow_height)/2, y + height - arrow_height + 1,
|
|
|
1309 arrow_height, arrow_height, shadowT );
|
|
|
1310 }
|
|
|
1311 else
|
|
|
1312 {
|
|
|
1313 if( clear_behind )
|
|
|
1314 XClearArea( dpy, win, y + height - arrow_height, x, arrow_height + 1, height, False );
|
|
|
1315 draw_arrow_right( dpy, win, bg, shine, shadow,
|
|
|
1316 y + height - arrow_height + 1, x + (width - arrow_height)/2,
|
|
|
1317 arrow_height, arrow_height, shadowT );
|
|
|
1318 }
|
|
|
1319 }
|
|
|
1320
|
|
|
1321 static void redraw_everything(XlwScrollBarWidget w, Region region, Boolean behind_arrows)
|
|
|
1322 {
|
|
|
1323 Display *dpy = XtDisplay((Widget)w);
|
|
|
1324 Window win = XtWindow((Widget)w);
|
|
|
1325 int x, y, width, height, shadowT, tmp;
|
|
|
1326
|
|
|
1327 x = widget_x(w);
|
|
|
1328 y = widget_y(w);
|
|
|
1329 width = widget_w(w);
|
|
|
1330 height = widget_h(w);
|
|
|
1331 shadowT = w->sb.shadowThickness;
|
|
|
1332
|
|
|
1333 if( w->sb.showArrows )
|
|
|
1334 {
|
|
|
1335 if( region == NULL || XRectInRegion( region, x, y, width, width ) )
|
|
|
1336 {
|
|
|
1337 redraw_up_arrow( w, False, behind_arrows );
|
|
|
1338 }
|
|
|
1339 if( VERT(w) )
|
|
|
1340 {
|
|
|
1341 y = y + height - width + 1;
|
|
|
1342 }
|
|
|
1343 else
|
|
|
1344 {
|
|
|
1345 tmp = y;
|
|
|
1346 y = x;
|
|
|
1347 x = tmp + height - width + 1;
|
|
|
1348 }
|
|
|
1349 if( region == NULL || XRectInRegion( region, x, y, width, width ) )
|
|
|
1350 {
|
|
|
1351 redraw_down_arrow( w, False, behind_arrows );
|
|
|
1352 }
|
|
|
1353 }
|
|
|
1354
|
|
|
1355 draw_shadows( dpy, win, w->sb.bottomShadowGC, w->sb.topShadowGC,
|
|
|
1356 0, 0, w->core.width, w->core.height, shadowT);
|
|
|
1357
|
|
|
1358 draw_knob( w, w->sb.above, w->sb.ss, w->sb.below );
|
|
|
1359
|
|
|
1360 }
|
|
|
1361
|
|
|
1362 /************************************************************************
|
|
|
1363 **
|
|
|
1364 ** Method funcitons
|
|
|
1365 **
|
|
|
1366 */
|
|
|
1367
|
|
|
1368 /*
|
|
|
1369 ** Initialize
|
|
|
1370 */
|
|
|
1371 static void Initialize(Widget treq, Widget tnew, ArgList args, Cardinal *num_args)
|
|
|
1372 {
|
|
|
1373 XlwScrollBarWidget request = (XlwScrollBarWidget) treq;
|
|
|
1374 XlwScrollBarWidget w = (XlwScrollBarWidget) tnew;
|
|
|
1375 Display *dpy = XtDisplay((Widget)w);
|
|
|
1376 Window win = RootWindowOfScreen( DefaultScreenOfDisplay(dpy) );
|
|
|
1377
|
|
|
1378 DBUG(fprintf(stderr, "Initialize\n"));
|
|
|
1379
|
|
|
1380 if( request->core.width == 0 ) w->core.width += (VERT(w) ? 12 : 25);
|
|
|
1381 if( request->core.height == 0 ) w->core.height += (VERT(w) ? 25 : 12);
|
|
|
1382
|
|
|
1383 verify_values(w);
|
|
|
1384
|
|
|
1385 w->sb.lastY = 0;
|
|
|
1386 w->sb.above = 0;
|
|
|
1387 w->sb.ss = 0;
|
|
|
1388 w->sb.below = 0;
|
|
|
1389 w->sb.armed = ARM_NONE;
|
|
|
1390
|
|
|
1391 if( w->sb.shadowThickness > 5 ) w->sb.shadowThickness = 5;
|
|
|
1392
|
|
|
1393 w->sb.grayPixmap =
|
|
|
1394 XCreatePixmapFromBitmapData( dpy, win, (char *) gray_bits, gray_width,
|
|
|
1395 gray_height, 1, 0, 1);
|
|
|
1396
|
|
|
1397 make_trough_pixel( w );
|
|
|
1398
|
|
|
1399 make_shadow_pixels( w );
|
|
|
1400
|
|
|
1401 w->sb.backgroundGC = get_gc(w, w->core.background_pixel, w->core.background_pixel, None);
|
|
|
1402 w->sb.topShadowGC = get_gc(w, w->sb.topShadowColor, w->core.background_pixel, w->sb.topShadowPixmap);
|
|
|
1403 w->sb.bottomShadowGC = get_gc(w, w->sb.bottomShadowColor, w->core.background_pixel, w->sb.bottomShadowPixmap);
|
|
|
1404
|
|
|
1405 w->sb.fullRedrawNext = True;
|
|
|
1406 }
|
|
|
1407
|
|
|
1408 /*
|
|
|
1409 ** Destroy
|
|
|
1410 */
|
|
|
1411 static void Destroy(Widget widget)
|
|
|
1412 {
|
|
|
1413 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1414 Display *dpy = XtDisplay((Widget)w);
|
|
|
1415
|
|
|
1416 DBUG(fprintf(stderr, "Destroy\n"));
|
|
|
1417
|
|
|
1418 XtReleaseGC(widget, w->sb.bottomShadowGC);
|
|
|
1419 XtReleaseGC(widget, w->sb.topShadowGC);
|
|
|
1420 XtReleaseGC(widget, w->sb.backgroundGC);
|
|
|
1421
|
|
|
1422 XFreePixmap( dpy, w->sb.grayPixmap );
|
|
|
1423 }
|
|
|
1424
|
|
|
1425 /*
|
|
|
1426 ** Realize
|
|
|
1427 */
|
|
|
1428 static void Realize(Widget widget, XtValueMask *valuemask, XSetWindowAttributes *attr)
|
|
|
1429 {
|
|
|
1430 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1431 Display *dpy = XtDisplay((Widget)w);
|
|
|
1432 Window win;
|
|
|
1433 XSetWindowAttributes win_attr;
|
|
|
1434
|
|
|
1435 DBUG(fprintf(stderr, "Realize\n"));
|
|
|
1436
|
|
|
1437 (*coreClassRec.core_class.realize)(widget, valuemask, attr);
|
|
|
1438
|
|
|
1439 win = XtWindow((Widget)w);
|
|
|
1440
|
|
|
1441 seg_pixel_sizes(w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1442
|
|
|
1443 XSetWindowBackground( dpy, win, w->sb.troughColor);
|
|
|
1444
|
|
|
1445 /* Change bit gravity so widget is not cleared on resize */
|
|
|
1446 win_attr.bit_gravity = NorthWestGravity;
|
|
|
1447 XChangeWindowAttributes( dpy, win, CWBitGravity , &win_attr);
|
|
|
1448
|
|
|
1449 }
|
|
|
1450
|
|
|
1451 /*
|
|
|
1452 ** Resize
|
|
|
1453 */
|
|
|
1454 static void Resize(Widget widget)
|
|
|
1455 {
|
|
|
1456 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1457 Display *dpy = XtDisplay((Widget)w);
|
|
|
1458 Window win = XtWindow((Widget)w);
|
|
|
1459
|
|
|
1460 if( XtIsRealized(widget) )
|
|
|
1461 {
|
|
|
1462 DBUG(fprintf(stderr, "Resize = %08lx\n", w));
|
|
|
1463
|
|
|
1464 seg_pixel_sizes(w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1465
|
|
|
1466 /*redraw_everything(w, NULL, True);*/
|
|
|
1467
|
|
|
1468 w->sb.fullRedrawNext = True;
|
|
|
1469 /* Force expose event */
|
|
|
1470 XClearArea(dpy, win, widget_x(w), widget_y(w), 1, 1, True);
|
|
|
1471 }
|
|
|
1472 }
|
|
|
1473
|
|
|
1474 /*
|
|
|
1475 ** Redisplay
|
|
|
1476 */
|
|
|
1477 static void Redisplay(Widget widget, XEvent *event, Region region)
|
|
|
1478 {
|
|
|
1479 XlwScrollBarWidget w = (XlwScrollBarWidget) widget;
|
|
|
1480
|
|
|
1481 DBUG(fprintf(stderr, "Redisplay = %08lx\n", w));
|
|
|
1482
|
|
|
1483 if( XtIsRealized(widget) )
|
|
|
1484 {
|
|
|
1485 if( w->sb.fullRedrawNext )
|
|
|
1486 {
|
|
|
1487 redraw_everything(w, NULL, True);
|
|
|
1488 }
|
|
|
1489 else
|
|
|
1490 {
|
|
|
1491 redraw_everything(w, region, False);
|
|
|
1492 }
|
|
|
1493 w->sb.fullRedrawNext = False;
|
|
|
1494 }
|
|
|
1495 }
|
|
|
1496
|
|
|
1497 /*
|
|
|
1498 ** SetValues
|
|
|
1499 */
|
|
|
1500 static Boolean SetValues(Widget current, Widget request, Widget neww, ArgList args, Cardinal *num_args)
|
|
|
1501 {
|
|
|
1502 XlwScrollBarWidget cur = (XlwScrollBarWidget) current;
|
|
|
1503 XlwScrollBarWidget w = (XlwScrollBarWidget) neww;
|
|
|
1504 Boolean do_redisplay = False;
|
|
|
1505
|
|
|
1506 if( cur->sb.troughColor != w->sb.troughColor )
|
|
|
1507 {
|
|
|
1508 if( XtIsRealized((Widget)w) )
|
|
|
1509 {
|
|
|
1510 XSetWindowBackground( XtDisplay((Widget)w), XtWindow((Widget)w),
|
|
|
1511 w->sb.troughColor);
|
|
|
1512 do_redisplay = True;
|
|
|
1513 }
|
|
|
1514 }
|
|
|
1515
|
|
|
1516 if( cur->core.background_pixel != w->core.background_pixel )
|
|
|
1517 {
|
|
|
1518 XtReleaseGC((Widget)cur, cur->sb.backgroundGC);
|
|
|
1519 w->sb.backgroundGC = get_gc(w, w->core.background_pixel, w->core.background_pixel, None);
|
|
|
1520 do_redisplay = True;
|
|
|
1521 }
|
|
|
1522
|
|
|
1523 if( cur->sb.topShadowColor != w->sb.topShadowColor ||
|
|
|
1524 cur->sb.topShadowPixmap != w->sb.topShadowPixmap )
|
|
|
1525 {
|
|
|
1526 XtReleaseGC((Widget)cur, cur->sb.topShadowGC);
|
|
|
1527 w->sb.topShadowGC = get_gc(w, w->sb.topShadowColor, w->core.background_pixel, w->sb.topShadowPixmap);
|
|
|
1528 do_redisplay = True;
|
|
|
1529 }
|
|
|
1530
|
|
|
1531 if( cur->sb.bottomShadowColor != w->sb.bottomShadowColor ||
|
|
|
1532 cur->sb.bottomShadowPixmap != w->sb.bottomShadowPixmap )
|
|
|
1533 {
|
|
|
1534 XtReleaseGC((Widget)cur, cur->sb.bottomShadowGC);
|
|
|
1535 w->sb.bottomShadowGC = get_gc(w, w->sb.bottomShadowColor, w->core.background_pixel, w->sb.bottomShadowPixmap);
|
|
|
1536 do_redisplay = True;
|
|
|
1537 }
|
|
|
1538
|
|
|
1539 if( cur->sb.orientation != w->sb.orientation )
|
|
|
1540 {
|
|
|
1541 do_redisplay = True;
|
|
|
1542 }
|
|
|
1543
|
|
|
1544
|
|
|
1545 if( cur->sb.minimum != w->sb.minimum ||
|
|
|
1546 cur->sb.maximum != w->sb.maximum ||
|
|
|
1547 cur->sb.sliderSize != w->sb.sliderSize ||
|
|
|
1548 cur->sb.value != w->sb.value ||
|
|
|
1549 cur->sb.pageIncrement != w->sb.pageIncrement ||
|
|
|
1550 cur->sb.increment != w->sb.increment )
|
|
|
1551 {
|
|
|
1552 verify_values(w);
|
|
|
1553 if( XtIsRealized((Widget)w) )
|
|
|
1554 {
|
|
|
1555 seg_pixel_sizes(w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1556 draw_knob( w, w->sb.above, w->sb.ss, w->sb.below );
|
|
|
1557 }
|
|
|
1558 }
|
|
|
1559
|
|
|
1560 if( w->sb.shadowThickness > 5 ) w->sb.shadowThickness = 5;
|
|
|
1561
|
|
|
1562 return( do_redisplay );
|
|
|
1563 }
|
|
|
1564
|
|
|
1565 void XlwScrollBarGetValues(Widget widget, int *value, int *sliderSize,
|
|
|
1566 int *increment, int *pageIncrement)
|
|
|
1567 {
|
|
|
1568 XlwScrollBarWidget w = (XlwScrollBarWidget)widget;
|
|
|
1569
|
|
|
1570 if( w && XtClass((Widget)w) == xlwScrollBarWidgetClass )
|
|
|
1571 {
|
|
|
1572 if( value ) *value = w->sb.value;
|
|
|
1573 if( sliderSize ) *sliderSize = w->sb.sliderSize;
|
|
|
1574 if( increment ) *increment = w->sb.increment;
|
|
|
1575 if( pageIncrement ) *pageIncrement = w->sb.pageIncrement;
|
|
|
1576 }
|
|
|
1577 }
|
|
|
1578
|
|
|
1579 void XlwScrollBarSetValues(Widget widget, int value, int sliderSize,
|
|
|
1580 int increment, int pageIncrement, Boolean notify)
|
|
|
1581 {
|
|
|
1582 XlwScrollBarWidget w = (XlwScrollBarWidget)widget;
|
|
|
1583 int last_value;
|
|
|
1584
|
|
|
1585 if( w && XtClass((Widget)w) == xlwScrollBarWidgetClass &&
|
|
|
1586 (w->sb.value != value ||
|
|
|
1587 w->sb.sliderSize != sliderSize ||
|
|
|
1588 w->sb.increment != increment ||
|
|
|
1589 w->sb.pageIncrement != pageIncrement ))
|
|
|
1590 {
|
|
|
1591 w->sb.value = value;
|
|
|
1592 w->sb.sliderSize = sliderSize;
|
|
|
1593 w->sb.increment = increment;
|
|
|
1594 w->sb.pageIncrement = pageIncrement;
|
|
|
1595
|
|
|
1596 verify_values(w);
|
|
|
1597
|
|
|
1598 if( XtIsRealized(widget) )
|
|
|
1599 {
|
|
|
1600 seg_pixel_sizes(w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1601 draw_knob(w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1602
|
|
|
1603 last_value = w->sb.value;
|
|
|
1604 w->sb.value = value_from_pixel(w, w->sb.above);
|
|
|
1605 verify_values(w);
|
|
|
1606
|
|
|
1607 if( w->sb.value != last_value && notify )
|
|
|
1608 {
|
|
|
1609 call_callbacks( w, XmCR_VALUE_CHANGED, w->sb.value, 0, NULL );
|
|
|
1610 }
|
|
|
1611 }
|
|
|
1612 }
|
|
|
1613 }
|
|
|
1614
|
|
|
1615 /************************************************************************
|
|
|
1616 **
|
|
|
1617 ** Action funcitons
|
|
|
1618 **
|
|
|
1619 */
|
|
|
1620
|
|
|
1621 static void timer(XtPointer data, XtIntervalId *id)
|
|
|
1622 {
|
|
|
1623 XlwScrollBarWidget w = (XlwScrollBarWidget)data;
|
|
|
1624 int reason, last_value;
|
|
|
1625
|
|
|
1626 if( w->sb.armed != ARM_NONE )
|
|
|
1627 {
|
|
|
1628 last_value = w->sb.value;
|
|
|
1629 reason = XmCR_NONE;
|
|
|
1630
|
|
|
1631 switch( w->sb.armed )
|
|
|
1632 {
|
|
|
1633 case ARM_PAGEUP:
|
|
|
1634 w->sb.value = safe_subtract( w->sb.value, w->sb.pageIncrement );
|
|
|
1635 reason = XmCR_PAGE_DECREMENT;
|
|
|
1636 break;
|
|
|
1637 case ARM_PAGEDOWN:
|
|
|
1638 w->sb.value = safe_add( w->sb.value, w->sb.pageIncrement );
|
|
|
1639 reason = XmCR_PAGE_INCREMENT;
|
|
|
1640 break;
|
|
|
1641 case ARM_UP:
|
|
|
1642 w->sb.value = safe_subtract( w->sb.value, w->sb.increment );
|
|
|
1643 reason = XmCR_DECREMENT;
|
|
|
1644 break;
|
|
|
1645 case ARM_DOWN:
|
|
|
1646 w->sb.value = safe_add( w->sb.value, w->sb.increment );
|
|
|
1647 reason = XmCR_INCREMENT;
|
|
|
1648 break;
|
|
|
1649 }
|
|
|
1650
|
|
|
1651 verify_values(w);
|
|
|
1652
|
|
|
1653 if( last_value != w->sb.value )
|
|
|
1654 {
|
|
|
1655 seg_pixel_sizes(w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1656 draw_knob(w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1657
|
|
|
1658 call_callbacks( w, reason, w->sb.value, 0, NULL );
|
|
|
1659
|
|
|
1660 XtAppAddTimeOut( XtWidgetToApplicationContext((Widget)w),
|
|
|
1661 (unsigned long) w->sb.repeatDelay,
|
|
|
1662 timer, (XtPointer) w );
|
|
|
1663 }
|
|
|
1664 }
|
|
|
1665 }
|
|
|
1666
|
|
|
1667 static int what_button(XlwScrollBarWidget w, int mouse_x, int mouse_y)
|
|
|
1668 {
|
|
|
1669 int x, y, width, height, arrow_height_top, arrow_height_bottom;
|
|
|
1670 int where;
|
|
|
1671
|
|
|
1672 x = widget_x(w);
|
|
|
1673 y = widget_y(w);
|
|
|
1674 width = widget_w(w);
|
|
|
1675 height = widget_h(w);
|
|
|
1676
|
|
|
1677 #if 0
|
|
|
1678 arrow_height = w->sb.showArrows ? arrow_h(w) : 0;
|
|
|
1679 #endif
|
|
|
1680 if( w->sb.showArrows )
|
|
|
1681 {
|
|
|
1682 if( arrow_same_end(w) )
|
|
|
1683 {
|
|
|
1684 arrow_height_top = 0;
|
|
|
1685 arrow_height_bottom = 2*arrow_h(w);
|
|
|
1686 }
|
|
|
1687 else
|
|
|
1688 {
|
|
|
1689 arrow_height_top = arrow_height_bottom = arrow_h(w);
|
|
|
1690 }
|
|
|
1691 }
|
|
|
1692 else
|
|
|
1693 {
|
|
|
1694 arrow_height_top = arrow_height_bottom = 0;
|
|
|
1695 }
|
|
|
1696
|
|
|
1697 where = BUTTON_NONE;
|
|
|
1698
|
|
|
1699 if( mouse_x > x && mouse_x < (x + width) )
|
|
|
1700 {
|
|
|
1701 if( mouse_y > (y + arrow_height_top) && mouse_y < (y + height - arrow_height_bottom) )
|
|
|
1702 {
|
|
|
1703 if( mouse_y < (y + w->sb.above + arrow_height_top) )
|
|
|
1704 {
|
|
|
1705 where = BUTTON_TROUGH_ABOVE;
|
|
|
1706 }
|
|
|
1707 else if( mouse_y > (y + w->sb.above + w->sb.ss + arrow_height_top) )
|
|
|
1708 {
|
|
|
1709 where = BUTTON_TROUGH_BELOW;
|
|
|
1710 }
|
|
|
1711 else
|
|
|
1712 {
|
|
|
1713 where = BUTTON_KNOB;
|
|
|
1714 }
|
|
|
1715 }
|
|
|
1716 else if( arrow_same_end(w) )
|
|
|
1717 {
|
|
|
1718 if( mouse_y > (y + height - arrow_height_bottom + 1) && mouse_y < (y + height) )
|
|
|
1719 {
|
|
|
1720 if( mouse_y < (y + height - arrow_height_bottom/2) )
|
|
|
1721 {
|
|
|
1722 where = BUTTON_UP_ARROW;
|
|
|
1723 }
|
|
|
1724 else
|
|
|
1725 {
|
|
|
1726 where = BUTTON_DOWN_ARROW;
|
|
|
1727 }
|
|
|
1728 }
|
|
|
1729 }
|
|
|
1730 else
|
|
|
1731 {
|
|
|
1732 if( mouse_y > y && mouse_y < (y + arrow_height_top) )
|
|
|
1733 {
|
|
|
1734 where = BUTTON_UP_ARROW;
|
|
|
1735 }
|
|
|
1736 else if( mouse_y > (y + height - arrow_height_bottom + 1) && mouse_y < (y + height) )
|
|
|
1737 {
|
|
|
1738 where = BUTTON_DOWN_ARROW;
|
|
|
1739 }
|
|
|
1740 }
|
|
|
1741 }
|
|
|
1742 #if 0
|
|
|
1743 if( mouse_x > x && mouse_x < (x + width) )
|
|
|
1744 {
|
|
|
1745 if( mouse_y > (y + arrow_height) && mouse_y < (y + height - arrow_height) )
|
|
|
1746 {
|
|
|
1747 if( mouse_y < (y+w->sb.above+arrow_height) )
|
|
|
1748 {
|
|
|
1749 where = BUTTON_TROUGH_ABOVE;
|
|
|
1750 }
|
|
|
1751 else if( mouse_y > (y + w->sb.above + w->sb.ss + arrow_height) )
|
|
|
1752 {
|
|
|
1753 where = BUTTON_TROUGH_BELOW;
|
|
|
1754 }
|
|
|
1755 else
|
|
|
1756 {
|
|
|
1757 where = BUTTON_KNOB;
|
|
|
1758 }
|
|
|
1759 }
|
|
|
1760 else if( mouse_y > y && mouse_y < (y + arrow_height) )
|
|
|
1761 {
|
|
|
1762 where = BUTTON_UP_ARROW;
|
|
|
1763 }
|
|
|
1764 else if( mouse_y > (y + height - arrow_height + 1) && mouse_y < (y + height) )
|
|
|
1765 {
|
|
|
1766 where = BUTTON_DOWN_ARROW;
|
|
|
1767 }
|
|
|
1768 }
|
|
|
1769 #endif
|
|
|
1770 return( where );
|
|
|
1771 }
|
|
|
1772
|
|
|
1773 #define FORCED_SCROLL_NONE 0
|
|
|
1774 #define FORCED_SCROLL_DOWNRIGHT 1
|
|
|
1775 #define FORCED_SCROLL_UPLEFT 2
|
|
|
1776
|
|
|
1777 int forced_scroll_flag = FORCED_SCROLL_NONE;
|
|
|
1778
|
|
|
1779 /*
|
|
|
1780 ** PageDownOrRight
|
|
|
1781 */
|
|
|
1782 static void PageDownOrRight(Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
1783 {
|
|
|
1784 forced_scroll_flag = FORCED_SCROLL_DOWNRIGHT;
|
|
|
1785 Select(widget, event, parms, num_parms);
|
|
|
1786 forced_scroll_flag = FORCED_SCROLL_NONE;
|
|
|
1787 }
|
|
|
1788
|
|
|
1789 /*
|
|
|
1790 ** PageUpOrLeft
|
|
|
1791 */
|
|
|
1792 static void PageUpOrLeft(Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
1793 {
|
|
|
1794 forced_scroll_flag = FORCED_SCROLL_UPLEFT;
|
|
|
1795 Select(widget, event, parms, num_parms);
|
|
|
1796 forced_scroll_flag = FORCED_SCROLL_NONE;
|
|
|
1797 }
|
|
|
1798
|
|
|
1799 /*
|
|
|
1800 ** Select
|
|
|
1801 */
|
|
|
1802 static void Select(Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
1803 {
|
|
|
1804 XlwScrollBarWidget w = (XlwScrollBarWidget)widget;
|
|
|
1805 int mouse_x, mouse_y;
|
|
|
1806 int reason, last_value;
|
|
|
1807 int sb_button;
|
|
|
1808
|
|
|
1809 DBUG(fprintf(stderr, "Select:\n"));
|
|
|
1810
|
|
|
1811 mouse_x = event_x( w, event );
|
|
|
1812 mouse_y = event_y( w, event );
|
|
|
1813
|
|
|
1814 w->sb.savedValue = w->sb.value;
|
|
|
1815
|
|
|
1816 last_value = w->sb.value;
|
|
|
1817 reason = XmCR_NONE;
|
|
|
1818
|
|
|
1819 XtGrabKeyboard( (Widget)w, False, GrabModeAsync, GrabModeAsync, event->xbutton.time );
|
|
|
1820
|
|
|
1821 sb_button = what_button(w, mouse_x, mouse_y);
|
|
|
1822
|
|
|
1823 if ( forced_scroll_flag != FORCED_SCROLL_NONE )
|
|
|
1824 {
|
|
|
1825 switch ( sb_button )
|
|
|
1826 {
|
|
|
1827 case BUTTON_TROUGH_ABOVE:
|
|
|
1828 case BUTTON_TROUGH_BELOW:
|
|
|
1829 case BUTTON_KNOB:
|
|
|
1830 sb_button= BUTTON_NONE; /* cause next switch to fall through */
|
|
|
1831 if ( forced_scroll_flag == FORCED_SCROLL_UPLEFT )
|
|
|
1832 {
|
|
|
1833 w->sb.value = safe_subtract( w->sb.value, w->sb.pageIncrement );
|
|
|
1834 w->sb.armed = ARM_PAGEUP;
|
|
|
1835 reason = XmCR_PAGE_DECREMENT;
|
|
|
1836 break;
|
|
|
1837 }
|
|
|
1838 else if ( forced_scroll_flag == FORCED_SCROLL_DOWNRIGHT )
|
|
|
1839 {
|
|
|
1840 w->sb.value = safe_add( w->sb.value, w->sb.pageIncrement );
|
|
|
1841 w->sb.armed = ARM_PAGEDOWN;
|
|
|
1842 reason = XmCR_PAGE_INCREMENT;
|
|
|
1843 break;
|
|
|
1844 }
|
|
|
1845 abort();
|
|
|
1846 }
|
|
|
1847 }
|
|
|
1848
|
|
|
1849 switch( sb_button )
|
|
|
1850 {
|
|
|
1851 case BUTTON_TROUGH_ABOVE:
|
|
|
1852 w->sb.value = safe_subtract( w->sb.value, w->sb.pageIncrement );
|
|
|
1853 w->sb.armed = ARM_PAGEUP;
|
|
|
1854 reason = XmCR_PAGE_DECREMENT;
|
|
|
1855 break;
|
|
|
1856 case BUTTON_TROUGH_BELOW:
|
|
|
1857 w->sb.value = safe_add( w->sb.value, w->sb.pageIncrement );
|
|
|
1858 w->sb.armed = ARM_PAGEDOWN;
|
|
|
1859 reason = XmCR_PAGE_INCREMENT;
|
|
|
1860 break;
|
|
|
1861 case BUTTON_KNOB:
|
|
|
1862 w->sb.lastY = mouse_y;
|
|
|
1863 w->sb.armed = ARM_KNOB;
|
|
|
1864 draw_knob(w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1865 break;
|
|
|
1866 case BUTTON_UP_ARROW:
|
|
|
1867 if( event->xbutton.state & ControlMask )
|
|
|
1868 {
|
|
|
1869 w->sb.value = INT_MIN;
|
|
|
1870 w->sb.armed = ARM_UP;
|
|
|
1871 reason = XmCR_TO_TOP;
|
|
|
1872 }
|
|
|
1873 else
|
|
|
1874 {
|
|
|
1875 w->sb.value = safe_subtract( w->sb.value, w->sb.increment );
|
|
|
1876 w->sb.armed = ARM_UP;
|
|
|
1877 reason = XmCR_DECREMENT;
|
|
|
1878 }
|
|
|
1879 redraw_up_arrow(w, True, False);
|
|
|
1880 break;
|
|
|
1881 case BUTTON_DOWN_ARROW:
|
|
|
1882 if( event->xbutton.state & ControlMask )
|
|
|
1883 {
|
|
|
1884 w->sb.value = INT_MAX;
|
|
|
1885 w->sb.armed = ARM_DOWN;
|
|
|
1886 reason = XmCR_TO_BOTTOM;
|
|
|
1887 }
|
|
|
1888 else
|
|
|
1889 {
|
|
|
1890 w->sb.value = safe_add( w->sb.value, w->sb.increment );
|
|
|
1891 w->sb.armed = ARM_DOWN;
|
|
|
1892 reason = XmCR_INCREMENT;
|
|
|
1893 }
|
|
|
1894 redraw_down_arrow(w, True, False);
|
|
|
1895 break;
|
|
|
1896 }
|
|
|
1897
|
|
|
1898 verify_values(w);
|
|
|
1899
|
|
|
1900 if( last_value != w->sb.value )
|
|
|
1901 {
|
|
|
1902 seg_pixel_sizes(w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
1903 draw_knob(w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1904
|
|
|
1905 call_callbacks( w, reason, w->sb.value, mouse_y, event );
|
|
|
1906
|
|
|
1907 XtAppAddTimeOut( XtWidgetToApplicationContext((Widget)w),
|
|
|
1908 (unsigned long) w->sb.initialDelay,
|
|
|
1909 timer, (XtPointer) w );
|
|
|
1910 }
|
|
|
1911
|
|
|
1912 CHECK(w);
|
|
|
1913 }
|
|
|
1914
|
|
|
1915 /*
|
|
|
1916 ** Drag
|
|
|
1917 */
|
|
|
1918 static void Drag(Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
1919 {
|
|
|
1920 XlwScrollBarWidget w = (XlwScrollBarWidget)widget;
|
|
|
1921 int diff;
|
|
|
1922 int height, mouse_y;
|
|
|
1923 int last_value, last_above;
|
|
|
1924
|
|
|
1925 DBUG(fprintf(stderr, "Drag:\n"));
|
|
|
1926
|
|
|
1927 if( w->sb.armed == ARM_KNOB )
|
|
|
1928 {
|
|
|
1929 height = widget_h(w);
|
|
|
1930 if( w->sb.showArrows ) height -= (2*arrow_h(w));
|
|
|
1931
|
|
|
1932 mouse_y = event_y( w, event );
|
|
|
1933
|
|
|
1934 diff = mouse_y - w->sb.lastY;
|
|
|
1935
|
|
|
1936 last_above = w->sb.above;
|
|
|
1937 last_value = w->sb.value;
|
|
|
1938
|
|
|
1939 if( diff < 0 )
|
|
|
1940 {
|
|
|
1941 /* up */
|
|
|
1942 w->sb.above -= (-diff);
|
|
|
1943 if( w->sb.above < 0 )
|
|
|
1944 {
|
|
|
1945 mouse_y = (mouse_y - w->sb.above);
|
|
|
1946 w->sb.above = 0;
|
|
|
1947 diff = 0;
|
|
|
1948 w->sb.below = height - w->sb.ss;
|
|
|
1949 }
|
|
|
1950 w->sb.below -= diff;
|
|
|
1951 CHECK(w);
|
|
|
1952 }
|
|
|
1953 else if( diff > 0 )
|
|
|
1954 {
|
|
|
1955 /* down */
|
|
|
1956 w->sb.above += diff;
|
|
|
1957 if( w->sb.above + w->sb.ss > height )
|
|
|
1958 {
|
|
|
1959 mouse_y = height + (mouse_y - (w->sb.above + w->sb.ss));
|
|
|
1960 w->sb.above = height - w->sb.ss;
|
|
|
1961 diff = 0;
|
|
|
1962 w->sb.below = 0;
|
|
|
1963 }
|
|
|
1964 w->sb.below -= diff;
|
|
|
1965 CHECK(w);
|
|
|
1966 }
|
|
|
1967
|
|
|
1968 if( last_above != w->sb.above )
|
|
|
1969 {
|
|
|
1970 draw_knob(w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
1971
|
|
|
1972 w->sb.lastY = mouse_y;
|
|
|
1973
|
|
|
1974 w->sb.value = value_from_pixel(w, w->sb.above);
|
|
|
1975 verify_values(w);
|
|
|
1976 CHECK(w);
|
|
|
1977
|
|
|
1978 if( w->sb.value != last_value )
|
|
|
1979 {
|
|
|
1980 call_callbacks( w, XmCR_DRAG, w->sb.value, event_y(w, event), event );
|
|
|
1981 }
|
|
|
1982 }
|
|
|
1983 }
|
|
|
1984 CHECK(w);
|
|
|
1985 }
|
|
|
1986
|
|
|
1987 /*
|
|
|
1988 ** Release
|
|
|
1989 */
|
|
|
1990 static void Release(Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
1991 {
|
|
|
1992 XlwScrollBarWidget w = (XlwScrollBarWidget)widget;
|
|
|
1993
|
|
|
1994 DBUG(fprintf(stderr, "EndDrag:\n"));
|
|
|
1995
|
|
|
1996 switch( w->sb.armed )
|
|
|
1997 {
|
|
|
1998 case ARM_KNOB:
|
|
|
1999 call_callbacks( w, XmCR_VALUE_CHANGED, w->sb.value, event_y(w, event), event );
|
|
|
2000 w->sb.armed = ARM_NONE;
|
|
|
2001 draw_knob(w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
2002 break;
|
|
|
2003 case ARM_UP:
|
|
|
2004 redraw_up_arrow(w, False, False);
|
|
|
2005 break;
|
|
|
2006 case ARM_DOWN:
|
|
|
2007 redraw_down_arrow(w, False, False);
|
|
|
2008 break;
|
|
|
2009 }
|
|
|
2010
|
|
|
2011 XtUngrabKeyboard( (Widget)w, event->xbutton.time );
|
|
|
2012
|
|
|
2013 w->sb.armed = ARM_NONE;
|
|
|
2014 }
|
|
|
2015
|
|
|
2016 /*
|
|
|
2017 ** Jump
|
|
|
2018 */
|
|
|
2019 static void Jump(Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
2020 {
|
|
|
2021 XlwScrollBarWidget w = (XlwScrollBarWidget)widget;
|
|
|
2022 int x, y, width, height, mouse_x, mouse_y;
|
|
|
2023 int arrow_height;
|
|
|
2024 int last_above, last_value;
|
|
|
2025
|
|
|
2026 DBUG(fprintf(stderr, "Jump:\n"));
|
|
|
2027
|
|
|
2028 x = widget_x(w);
|
|
|
2029 y = widget_y(w);
|
|
|
2030 width = widget_w(w);
|
|
|
2031 height = widget_h(w);
|
|
|
2032 mouse_x = event_x( w, event );
|
|
|
2033 mouse_y = event_y( w, event );
|
|
|
2034
|
|
|
2035 arrow_height = w->sb.showArrows ? arrow_h(w) : 0;
|
|
|
2036
|
|
|
2037 XtGrabKeyboard( (Widget)w, False, GrabModeAsync, GrabModeAsync, event->xbutton.time );
|
|
|
2038
|
|
|
2039 switch( what_button(w, mouse_x, mouse_y) )
|
|
|
2040 {
|
|
|
2041 case BUTTON_TROUGH_ABOVE:
|
|
|
2042 case BUTTON_TROUGH_BELOW:
|
|
|
2043 case BUTTON_KNOB:
|
|
|
2044 w->sb.savedValue = w->sb.value;
|
|
|
2045
|
|
|
2046 height -= (2*arrow_height);
|
|
|
2047 y += arrow_height;
|
|
|
2048
|
|
|
2049 last_above = w->sb.above;
|
|
|
2050 last_value = w->sb.value;
|
|
|
2051
|
|
|
2052 w->sb.armed = ARM_KNOB;
|
|
|
2053 draw_knob(w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
2054
|
|
|
2055 w->sb.above = mouse_y - (w->sb.ss / 2) - arrow_height;
|
|
|
2056 if( w->sb.above < 0 )
|
|
|
2057 {
|
|
|
2058 w->sb.above = 0;
|
|
|
2059 }
|
|
|
2060 else if( w->sb.above + w->sb.ss > height )
|
|
|
2061 {
|
|
|
2062 w->sb.above = height - w->sb.ss;
|
|
|
2063 }
|
|
|
2064 w->sb.below = (height - (w->sb.ss + w->sb.above));
|
|
|
2065
|
|
|
2066 if( last_above != w->sb.above )
|
|
|
2067 {
|
|
|
2068 draw_knob(w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
2069
|
|
|
2070 w->sb.value = value_from_pixel(w, w->sb.above);
|
|
|
2071 verify_values(w);
|
|
|
2072 CHECK(w);
|
|
|
2073
|
|
|
2074 w->sb.lastY = mouse_y;
|
|
|
2075 w->sb.lastY = w->sb.above + arrow_height + (w->sb.ss / 2);
|
|
|
2076
|
|
|
2077 if( w->sb.value != last_value )
|
|
|
2078 {
|
|
|
2079 call_callbacks( w, XmCR_DRAG, w->sb.value, event_y(w, event), event );
|
|
|
2080 }
|
|
|
2081 }
|
|
|
2082 break;
|
|
|
2083 }
|
|
|
2084 CHECK(w);
|
|
|
2085 }
|
|
|
2086
|
|
|
2087 /*
|
|
|
2088 ** Abort
|
|
|
2089 */
|
|
|
2090 static void Abort(Widget widget, XEvent *event, String *parms, Cardinal *num_parms)
|
|
|
2091 {
|
|
|
2092 XlwScrollBarWidget w = (XlwScrollBarWidget)widget;
|
|
|
2093
|
|
|
2094 DBUG(fprintf(stderr, "Abort:\n"));
|
|
|
2095
|
|
|
2096 if( w->sb.armed != ARM_NONE )
|
|
|
2097 {
|
|
|
2098 if( w->sb.value != w->sb.savedValue )
|
|
|
2099 {
|
|
|
2100 w->sb.value = w->sb.savedValue;
|
|
|
2101
|
|
|
2102 seg_pixel_sizes(w, &w->sb.above, &w->sb.ss, &w->sb.below);
|
|
|
2103 draw_knob(w, w->sb.above, w->sb.ss, w->sb.below);
|
|
|
2104
|
|
|
2105 call_callbacks( w, XmCR_VALUE_CHANGED, w->sb.value, event_y(w, event), event );
|
|
|
2106 }
|
|
|
2107
|
|
|
2108 switch( w->sb.armed )
|
|
|
2109 {
|
|
|
2110 case ARM_UP:
|
|
|
2111 redraw_up_arrow(w, False, False);
|
|
|
2112 break;
|
|
|
2113 case ARM_DOWN:
|
|
|
2114 redraw_down_arrow(w, False, False);
|
|
|
2115 break;
|
|
|
2116 }
|
|
|
2117
|
|
|
2118 w->sb.armed = ARM_NONE;
|
|
|
2119
|
|
|
2120 XtUngrabKeyboard( (Widget)w, event->xbutton.time );
|
|
|
2121 }
|
|
|
2122 }
|
