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1684ba2e | 1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Mathieu Desnoyers | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License Version 2 as | |
6 | * published by the Free Software Foundation; | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
16 | * MA 02111-1307, USA. | |
17 | */ | |
18 | ||
19 | ||
20 | ||
21 | /****************************************************************************** | |
22 | * drawitem.c | |
23 | * | |
24 | * This file contains methods responsible for drawing a generic type of data | |
25 | * in a drawable. Doing this generically will permit user defined drawing | |
26 | * behavior in a later time. | |
27 | * | |
28 | * This file provides an API which is meant to be reusable for all viewers that | |
29 | * need to show information in line, icon, text, background or point form in | |
30 | * a drawable area having time for x axis. The y axis, in the control flow | |
31 | * viewer case, is corresponding to the different processes, but it can be | |
32 | * reused integrally for cpu, and eventually locks, buffers, network | |
33 | * interfaces... What will differ between the viewers is the precise | |
34 | * information which interests us. We may think that the most useful | |
35 | * information for control flow are some specific events, like schedule | |
36 | * change, and processes'states. It may differ for a cpu viewer : the | |
37 | * interesting information could be more the execution mode of each cpu. | |
38 | * This API in meant to make viewer's writers life easier : it will become | |
39 | * a simple choice of icons and line types for the precise information | |
40 | * the viewer has to provide (agremented with keeping supplementary records | |
41 | * and modifying slightly the DrawContext to suit the needs.) | |
42 | * | |
43 | * We keep each data type in attributes, keys to specific information | |
44 | * being formed from the GQuark corresponding to the information received. | |
45 | * (facilities / facility_name / events / eventname.) | |
46 | * (cpus/cpu_name, process_states/ps_name, | |
47 | * execution_modes/em_name, execution_submodes/es_name). | |
48 | * The goal is then to provide a generic way to print information on the | |
49 | * screen for all this different information. | |
50 | * | |
51 | * Information can be printed as | |
52 | * | |
53 | * - text (text + color + size + position (over or under line) | |
54 | * - icon (icon filename, corresponding to a loaded icon, accessible through | |
55 | * a GQuark. Icons are loaded statically at the guiControlFlow level during | |
56 | * module initialization and can be added on the fly if not present in the | |
57 | * GQuark.) The habitual place for xpm icons is in | |
58 | * ${prefix}/share/LinuxTraceToolkit.) + position (over or under line) | |
59 | * - line (color, width, style) | |
60 | * - Arc (big points) (color, size) | |
61 | * - background color (color) | |
62 | * | |
63 | * An item is a leaf of the attributes tree. It is, in that case, including | |
64 | * all kind of events categories we can have. It then associates each category | |
65 | * with one or more actions (drawing something) or nothing. | |
66 | * | |
67 | * Each item has an array of hooks (hook list). Each hook represents an | |
68 | * operation to perform. We seek the array each time we want to | |
69 | * draw an item. We execute each operation in order. An operation type | |
70 | * is associated with each hook to permit user listing and modification | |
71 | * of these operations. The operation type is also used to find the | |
72 | * corresponding priority for the sorting. Operation type and priorities | |
73 | * are enum and a static int table. | |
74 | * | |
75 | * The array has to be sorted by priority each time we add a task in it. | |
76 | * A priority is associated with each operation type. It permits | |
77 | * to perform background color selection before line or text drawing. We also | |
78 | * draw lines before text, so the text appears over the lines. | |
79 | * | |
80 | * Executing all the arrays of operations for a specific event (which | |
81 | * implies information for state, event, cpu, execution mode and submode) | |
82 | * has to be done in a same DrawContext. The goal there is to keep the offset | |
83 | * of the text and icons over and under the middle line, so a specific | |
84 | * event could be printed as ( R Si 0 for running, scheduled in, cpu 0 ), | |
85 | * text being easy to replace with icons. The DrawContext is passed as | |
86 | * call_data for the operation hooks. | |
87 | * | |
88 | * We use the lttv global attributes to keep track of the loaded icons. | |
89 | * If we need an icon, we look for it in the icons / icon name pathname. | |
90 | * If found, we use the pointer to it. If not, we load the pixmap in | |
91 | * memory and set the pointer to the GdkPixmap in the attributes. The | |
92 | * structure pointed to contains the pixmap and the mask bitmap. | |
93 | * | |
94 | * Author : Mathieu Desnoyers, October 2003 | |
95 | */ | |
96 | ||
97 | #ifdef HAVE_CONFIG_H | |
98 | #include <config.h> | |
99 | #endif | |
100 | ||
101 | #include <glib.h> | |
102 | #include <gtk/gtk.h> | |
103 | #include <gdk/gdk.h> | |
104 | #include <lttv/hook.h> | |
105 | #include <lttv/attribute.h> | |
106 | #include <lttv/iattribute.h> | |
107 | #include <string.h> | |
108 | ||
109 | #include <lttv/tracecontext.h> | |
110 | #include <lttv/state.h> | |
111 | #include <lttv/lttv.h> | |
112 | ||
113 | #include "histodrawitem.h" | |
8d8c5ea7 | 114 | #include "histodrawing.h" |
1684ba2e | 115 | |
116 | ||
117 | #define MAX_PATH_LEN 256 | |
118 | ||
119 | /* drawing hook functions */ | |
120 | gboolean histo_draw_text( void *hook_data, void *call_data) | |
121 | { | |
122 | histo_PropertiesText *properties = (histo_PropertiesText*)hook_data; | |
123 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; | |
124 | ||
125 | PangoContext *context; | |
126 | PangoLayout *layout; | |
127 | PangoFontDescription *font_desc;// = pango_font_description_new(); | |
128 | PangoRectangle ink_rect; | |
129 | ||
130 | layout = draw_context->pango_layout; | |
131 | ||
132 | context = pango_layout_get_context(layout); | |
133 | font_desc = pango_context_get_font_description(context); | |
134 | ||
135 | pango_font_description_set_size(font_desc, properties->size*PANGO_SCALE); | |
136 | pango_layout_context_changed(layout); | |
137 | ||
138 | pango_layout_set_text(layout, properties->text, -1); | |
139 | pango_layout_get_pixel_extents(layout, &ink_rect, NULL); | |
140 | ||
141 | gint x=0, y=0; | |
142 | gint *offset=NULL; | |
143 | gboolean enough_space = FALSE; | |
144 | gint width = ink_rect.width; | |
145 | ||
146 | switch(properties->histo_position.x) { | |
147 | case POS_START: | |
148 | x = draw_context->histo_drawinfo.start.x; | |
149 | switch(properties->histo_position.y) { | |
150 | case OVER: | |
151 | offset = &draw_context->histo_drawinfo.start.offset.over; | |
152 | x += draw_context->histo_drawinfo.start.offset.over; | |
153 | y = draw_context->histo_drawinfo.y.over; | |
154 | break; | |
155 | case MIDDLE: | |
156 | offset = &draw_context->histo_drawinfo.start.offset.middle; | |
157 | x += draw_context->histo_drawinfo.start.offset.middle; | |
158 | y = draw_context->histo_drawinfo.y.middle; | |
159 | break; | |
160 | case UNDER: | |
161 | offset = &draw_context->histo_drawinfo.start.offset.under; | |
162 | x += draw_context->histo_drawinfo.start.offset.under; | |
163 | y = draw_context->histo_drawinfo.y.under; | |
164 | break; | |
165 | } | |
166 | /* verify if there is enough space to draw */ | |
167 | if(unlikely(x + width <= draw_context->histo_drawinfo.end.x)) { | |
168 | enough_space = TRUE; | |
169 | *offset += width; | |
170 | } | |
171 | break; | |
172 | case POS_END: | |
173 | x = draw_context->histo_drawinfo.end.x; | |
174 | switch(properties->histo_position.y) { | |
175 | case OVER: | |
176 | offset = &draw_context->histo_drawinfo.end.offset.over; | |
177 | x += draw_context->histo_drawinfo.end.offset.over; | |
178 | y = draw_context->histo_drawinfo.y.over; | |
179 | break; | |
180 | case MIDDLE: | |
181 | offset = &draw_context->histo_drawinfo.end.offset.middle; | |
182 | x += draw_context->histo_drawinfo.end.offset.middle; | |
183 | y = draw_context->histo_drawinfo.y.middle; | |
184 | break; | |
185 | case UNDER: | |
186 | offset = &draw_context->histo_drawinfo.end.offset.under; | |
187 | x += draw_context->histo_drawinfo.end.offset.under; | |
188 | y = draw_context->histo_drawinfo.y.under; | |
189 | break; | |
190 | } | |
191 | /* verify if there is enough space to draw */ | |
192 | if(unlikely(x - width >= draw_context->histo_drawinfo.start.x)) { | |
193 | enough_space = TRUE; | |
194 | *offset -= width; | |
195 | } | |
196 | break; | |
197 | } | |
198 | ||
199 | if(unlikely(enough_space)) | |
200 | gdk_draw_layout_with_colors(draw_context->drawable, | |
201 | draw_context->gc, | |
202 | x, | |
203 | y, | |
204 | layout, properties->foreground, properties->background); | |
205 | ||
206 | return 0; | |
207 | } | |
208 | ||
209 | ||
210 | /* To speed up the process, search in already loaded icons list first. Only | |
211 | * load it if not present. | |
212 | */ | |
213 | gboolean histo_draw_icon( void *hook_data, void *call_data) | |
214 | { | |
215 | histo_PropertiesIcon *properties = (histo_PropertiesIcon*)hook_data; | |
216 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; | |
8f318283 | 217 | gboolean retval; |
1684ba2e | 218 | |
219 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); | |
220 | LttvAttributeValue value; | |
221 | gchar icon_name[MAX_PATH_LEN] = "icons/"; | |
222 | histo_IconStruct *icon_info; | |
223 | ||
224 | strcat(icon_name, properties->icon_name); | |
225 | ||
8f318283 BP |
226 | retval= lttv_iattribute_find_by_path(attributes, icon_name, |
227 | LTTV_POINTER, &value); | |
228 | g_assert(retval); | |
1684ba2e | 229 | if(unlikely(*(value.v_pointer) == NULL)) |
230 | { | |
231 | *(value.v_pointer) = icon_info = g_new(histo_IconStruct,1); | |
232 | ||
233 | icon_info->pixmap = gdk_pixmap_create_from_xpm(draw_context->drawable, | |
234 | &icon_info->mask, NULL, properties->icon_name); | |
235 | } | |
236 | else | |
237 | { | |
238 | icon_info = *(value.v_pointer); | |
239 | } | |
240 | ||
241 | gint x=0, y=0; | |
242 | gint *offset=NULL; | |
243 | gboolean enough_space = FALSE; | |
244 | gint width = properties->width; | |
245 | ||
246 | switch(properties->histo_position.x) { | |
247 | case POS_START: | |
248 | x = draw_context->histo_drawinfo.start.x; | |
249 | switch(properties->histo_position.y) { | |
250 | case OVER: | |
251 | offset = &draw_context->histo_drawinfo.start.offset.over; | |
252 | x += draw_context->histo_drawinfo.start.offset.over; | |
253 | y = draw_context->histo_drawinfo.y.over; | |
254 | break; | |
255 | case MIDDLE: | |
256 | offset = &draw_context->histo_drawinfo.start.offset.middle; | |
257 | x += draw_context->histo_drawinfo.start.offset.middle; | |
258 | y = draw_context->histo_drawinfo.y.middle; | |
259 | break; | |
260 | case UNDER: | |
261 | offset = &draw_context->histo_drawinfo.start.offset.under; | |
262 | x += draw_context->histo_drawinfo.start.offset.under; | |
263 | y = draw_context->histo_drawinfo.y.under; | |
264 | break; | |
265 | } | |
266 | /* verify if there is enough space to draw */ | |
267 | if(unlikely(x + width <= draw_context->histo_drawinfo.end.x)) { | |
268 | enough_space = TRUE; | |
269 | *offset += width; | |
270 | } | |
271 | break; | |
272 | case POS_END: | |
273 | x = draw_context->histo_drawinfo.end.x; | |
274 | switch(properties->histo_position.y) { | |
275 | case OVER: | |
276 | offset = &draw_context->histo_drawinfo.end.offset.over; | |
277 | x += draw_context->histo_drawinfo.end.offset.over; | |
278 | y = draw_context->histo_drawinfo.y.over; | |
279 | break; | |
280 | case MIDDLE: | |
281 | offset = &draw_context->histo_drawinfo.end.offset.middle; | |
282 | x += draw_context->histo_drawinfo.end.offset.middle; | |
283 | y = draw_context->histo_drawinfo.y.middle; | |
284 | break; | |
285 | case UNDER: | |
286 | offset = &draw_context->histo_drawinfo.end.offset.under; | |
287 | x += draw_context->histo_drawinfo.end.offset.under; | |
288 | y = draw_context->histo_drawinfo.y.under; | |
289 | break; | |
290 | } | |
291 | /* verify if there is enough space to draw */ | |
292 | if(unlikely(x - width >= draw_context->histo_drawinfo.start.x)) { | |
293 | enough_space = TRUE; | |
294 | *offset -= width; | |
295 | } | |
296 | break; | |
297 | } | |
298 | ||
299 | if(unlikely(enough_space)) { | |
300 | gdk_gc_set_clip_mask(draw_context->gc, icon_info->mask); | |
301 | ||
302 | gdk_gc_set_clip_origin( | |
303 | draw_context->gc, | |
304 | x, | |
305 | y); | |
306 | gdk_draw_drawable(draw_context->drawable, | |
307 | draw_context->gc, | |
308 | icon_info->pixmap, | |
309 | 0, 0, | |
310 | x, | |
311 | y, | |
312 | properties->width, properties->height); | |
313 | ||
314 | gdk_gc_set_clip_origin(draw_context->gc, 0, 0); | |
315 | gdk_gc_set_clip_mask(draw_context->gc, NULL); | |
316 | } | |
317 | return 0; | |
318 | } | |
319 | ||
320 | gboolean histo_draw_line( void *hook_data, void *call_data) | |
321 | { | |
322 | histo_PropertiesLine *properties = (histo_PropertiesLine*)hook_data; | |
323 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; | |
324 | ||
325 | gdk_gc_set_foreground(draw_context->gc, &properties->color); | |
326 | //gdk_gc_set_rgb_fg_color(draw_context->gc, &properties->color); | |
327 | gdk_gc_set_line_attributes( draw_context->gc, | |
328 | properties->line_width, | |
329 | properties->style, | |
330 | GDK_CAP_BUTT, | |
331 | GDK_JOIN_MITER); | |
332 | //g_critical("DRAWING LINE : x1: %i, y1: %i, x2:%i, y2:%i", | |
333 | // draw_context->previous->middle->x, | |
334 | // draw_context->previous->middle->y, | |
335 | // draw_context->drawinfo.middle.x, | |
336 | // draw_context->drawinfo.middle.y); | |
337 | ||
338 | gint x_begin=0, x_end=0, y=0; | |
339 | ||
340 | x_begin = draw_context->histo_drawinfo.start.x; | |
341 | x_end = draw_context->histo_drawinfo.end.x; | |
342 | ||
343 | switch(properties->y) { | |
344 | case OVER: | |
345 | y = draw_context->histo_drawinfo.y.over; | |
346 | break; | |
347 | case MIDDLE: | |
348 | y = draw_context->histo_drawinfo.y.middle; | |
349 | break; | |
350 | case UNDER: | |
351 | y = draw_context->histo_drawinfo.y.under; | |
352 | break; | |
353 | } | |
354 | ||
355 | histo_drawing_draw_line( | |
356 | NULL, draw_context->drawable, | |
357 | x_begin, | |
358 | y, | |
359 | x_end, | |
360 | y, | |
361 | draw_context->gc); | |
362 | ||
363 | return 0; | |
364 | } | |
365 | ||
366 | gboolean histo_draw_arc( void *hook_data, void *call_data) | |
367 | { | |
368 | histo_PropertiesArc *properties = (histo_PropertiesArc*)hook_data; | |
369 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; | |
370 | ||
371 | gdk_gc_set_foreground(draw_context->gc, properties->color); | |
372 | //gdk_gc_set_rgb_fg_color(draw_context->gc, properties->color); | |
373 | ||
374 | gint x=0, y=0; | |
375 | gint *offset=NULL; | |
376 | gboolean enough_space = FALSE; | |
377 | gint width = properties->size; | |
378 | ||
379 | switch(properties->histo_position.x) { | |
380 | case POS_START: | |
381 | x = draw_context->histo_drawinfo.start.x; | |
382 | switch(properties->histo_position.y) { | |
383 | case OVER: | |
384 | offset = &draw_context->histo_drawinfo.start.offset.over; | |
385 | x += draw_context->histo_drawinfo.start.offset.over; | |
386 | y = draw_context->histo_drawinfo.y.over; | |
387 | break; | |
388 | case MIDDLE: | |
389 | offset = &draw_context->histo_drawinfo.start.offset.middle; | |
390 | x += draw_context->histo_drawinfo.start.offset.middle; | |
391 | y = draw_context->histo_drawinfo.y.middle; | |
392 | break; | |
393 | case UNDER: | |
394 | offset = &draw_context->histo_drawinfo.start.offset.under; | |
395 | x += draw_context->histo_drawinfo.start.offset.under; | |
396 | y = draw_context->histo_drawinfo.y.under; | |
397 | break; | |
398 | } | |
399 | /* verify if there is enough space to draw */ | |
400 | if(unlikely(x + width <= draw_context->histo_drawinfo.end.x)) { | |
401 | enough_space = TRUE; | |
402 | *offset += width; | |
403 | } | |
404 | break; | |
405 | case POS_END: | |
406 | x = draw_context->histo_drawinfo.end.x; | |
407 | switch(properties->histo_position.y) { | |
408 | case OVER: | |
409 | offset = &draw_context->histo_drawinfo.end.offset.over; | |
410 | x += draw_context->histo_drawinfo.end.offset.over; | |
411 | y = draw_context->histo_drawinfo.y.over; | |
412 | break; | |
413 | case MIDDLE: | |
414 | offset = &draw_context->histo_drawinfo.end.offset.middle; | |
415 | x += draw_context->histo_drawinfo.end.offset.middle; | |
416 | y = draw_context->histo_drawinfo.y.middle; | |
417 | break; | |
418 | case UNDER: | |
419 | offset = &draw_context->histo_drawinfo.end.offset.under; | |
420 | x += draw_context->histo_drawinfo.end.offset.under; | |
421 | y = draw_context->histo_drawinfo.y.under; | |
422 | break; | |
423 | } | |
424 | /* verify if there is enough space to draw */ | |
425 | if(unlikely(x - width >= draw_context->histo_drawinfo.start.x)) { | |
426 | enough_space = TRUE; | |
427 | *offset -= width; | |
428 | } | |
429 | break; | |
430 | } | |
431 | ||
432 | if(unlikely(enough_space)) | |
433 | gdk_draw_arc(draw_context->drawable, draw_context->gc, | |
434 | properties->filled, | |
435 | x, | |
436 | y, | |
437 | properties->size, properties->size, 0, 360*64); | |
438 | ||
439 | return 0; | |
440 | } | |
441 | ||
442 | gboolean histo_draw_bg( void *hook_data, void *call_data) | |
443 | { | |
444 | histo_PropertiesBG *properties = (histo_PropertiesBG*)hook_data; | |
445 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; | |
446 | ||
447 | gdk_gc_set_foreground(draw_context->gc, properties->color); | |
448 | //gdk_gc_set_rgb_fg_color(draw_context->gc, properties->color); | |
449 | ||
450 | //g_critical("DRAWING RECT : x: %i, y: %i, w:%i, h:%i, val1 :%i, val2:%i ", | |
451 | // draw_context->previous->over->x, | |
452 | // draw_context->previous->over->y, | |
453 | // draw_context->drawinfo.over.x - draw_context->previous->over->x, | |
454 | // draw_context->previous->under->y-draw_context->previous->over->y, | |
455 | // draw_context->drawinfo.over.x, | |
456 | // draw_context->previous->over->x); | |
457 | gdk_draw_rectangle(draw_context->drawable, draw_context->gc, | |
458 | TRUE, | |
459 | draw_context->histo_drawinfo.start.x, | |
460 | draw_context->histo_drawinfo.y.over, | |
461 | draw_context->histo_drawinfo.end.x - draw_context->histo_drawinfo.start.x, | |
462 | draw_context->histo_drawinfo.y.under - draw_context->histo_drawinfo.y.over); | |
463 | ||
464 | return 0; | |
465 | } | |
466 | ||
467 |