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" |
114 | |
115 | |
116 | #define MAX_PATH_LEN 256 |
117 | |
118 | /* drawing hook functions */ |
119 | gboolean histo_draw_text( void *hook_data, void *call_data) |
120 | { |
121 | histo_PropertiesText *properties = (histo_PropertiesText*)hook_data; |
122 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; |
123 | |
124 | PangoContext *context; |
125 | PangoLayout *layout; |
126 | PangoFontDescription *font_desc;// = pango_font_description_new(); |
127 | PangoRectangle ink_rect; |
128 | |
129 | layout = draw_context->pango_layout; |
130 | |
131 | context = pango_layout_get_context(layout); |
132 | font_desc = pango_context_get_font_description(context); |
133 | |
134 | pango_font_description_set_size(font_desc, properties->size*PANGO_SCALE); |
135 | pango_layout_context_changed(layout); |
136 | |
137 | pango_layout_set_text(layout, properties->text, -1); |
138 | pango_layout_get_pixel_extents(layout, &ink_rect, NULL); |
139 | |
140 | gint x=0, y=0; |
141 | gint *offset=NULL; |
142 | gboolean enough_space = FALSE; |
143 | gint width = ink_rect.width; |
144 | |
145 | switch(properties->histo_position.x) { |
146 | case POS_START: |
147 | x = draw_context->histo_drawinfo.start.x; |
148 | switch(properties->histo_position.y) { |
149 | case OVER: |
150 | offset = &draw_context->histo_drawinfo.start.offset.over; |
151 | x += draw_context->histo_drawinfo.start.offset.over; |
152 | y = draw_context->histo_drawinfo.y.over; |
153 | break; |
154 | case MIDDLE: |
155 | offset = &draw_context->histo_drawinfo.start.offset.middle; |
156 | x += draw_context->histo_drawinfo.start.offset.middle; |
157 | y = draw_context->histo_drawinfo.y.middle; |
158 | break; |
159 | case UNDER: |
160 | offset = &draw_context->histo_drawinfo.start.offset.under; |
161 | x += draw_context->histo_drawinfo.start.offset.under; |
162 | y = draw_context->histo_drawinfo.y.under; |
163 | break; |
164 | } |
165 | /* verify if there is enough space to draw */ |
166 | if(unlikely(x + width <= draw_context->histo_drawinfo.end.x)) { |
167 | enough_space = TRUE; |
168 | *offset += width; |
169 | } |
170 | break; |
171 | case POS_END: |
172 | x = draw_context->histo_drawinfo.end.x; |
173 | switch(properties->histo_position.y) { |
174 | case OVER: |
175 | offset = &draw_context->histo_drawinfo.end.offset.over; |
176 | x += draw_context->histo_drawinfo.end.offset.over; |
177 | y = draw_context->histo_drawinfo.y.over; |
178 | break; |
179 | case MIDDLE: |
180 | offset = &draw_context->histo_drawinfo.end.offset.middle; |
181 | x += draw_context->histo_drawinfo.end.offset.middle; |
182 | y = draw_context->histo_drawinfo.y.middle; |
183 | break; |
184 | case UNDER: |
185 | offset = &draw_context->histo_drawinfo.end.offset.under; |
186 | x += draw_context->histo_drawinfo.end.offset.under; |
187 | y = draw_context->histo_drawinfo.y.under; |
188 | break; |
189 | } |
190 | /* verify if there is enough space to draw */ |
191 | if(unlikely(x - width >= draw_context->histo_drawinfo.start.x)) { |
192 | enough_space = TRUE; |
193 | *offset -= width; |
194 | } |
195 | break; |
196 | } |
197 | |
198 | if(unlikely(enough_space)) |
199 | gdk_draw_layout_with_colors(draw_context->drawable, |
200 | draw_context->gc, |
201 | x, |
202 | y, |
203 | layout, properties->foreground, properties->background); |
204 | |
205 | return 0; |
206 | } |
207 | |
208 | |
209 | /* To speed up the process, search in already loaded icons list first. Only |
210 | * load it if not present. |
211 | */ |
212 | gboolean histo_draw_icon( void *hook_data, void *call_data) |
213 | { |
214 | histo_PropertiesIcon *properties = (histo_PropertiesIcon*)hook_data; |
215 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; |
216 | |
217 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); |
218 | LttvAttributeValue value; |
219 | gchar icon_name[MAX_PATH_LEN] = "icons/"; |
220 | histo_IconStruct *icon_info; |
221 | |
222 | strcat(icon_name, properties->icon_name); |
223 | |
224 | g_assert(lttv_iattribute_find_by_path(attributes, icon_name, |
225 | LTTV_POINTER, &value)); |
226 | if(unlikely(*(value.v_pointer) == NULL)) |
227 | { |
228 | *(value.v_pointer) = icon_info = g_new(histo_IconStruct,1); |
229 | |
230 | icon_info->pixmap = gdk_pixmap_create_from_xpm(draw_context->drawable, |
231 | &icon_info->mask, NULL, properties->icon_name); |
232 | } |
233 | else |
234 | { |
235 | icon_info = *(value.v_pointer); |
236 | } |
237 | |
238 | gint x=0, y=0; |
239 | gint *offset=NULL; |
240 | gboolean enough_space = FALSE; |
241 | gint width = properties->width; |
242 | |
243 | switch(properties->histo_position.x) { |
244 | case POS_START: |
245 | x = draw_context->histo_drawinfo.start.x; |
246 | switch(properties->histo_position.y) { |
247 | case OVER: |
248 | offset = &draw_context->histo_drawinfo.start.offset.over; |
249 | x += draw_context->histo_drawinfo.start.offset.over; |
250 | y = draw_context->histo_drawinfo.y.over; |
251 | break; |
252 | case MIDDLE: |
253 | offset = &draw_context->histo_drawinfo.start.offset.middle; |
254 | x += draw_context->histo_drawinfo.start.offset.middle; |
255 | y = draw_context->histo_drawinfo.y.middle; |
256 | break; |
257 | case UNDER: |
258 | offset = &draw_context->histo_drawinfo.start.offset.under; |
259 | x += draw_context->histo_drawinfo.start.offset.under; |
260 | y = draw_context->histo_drawinfo.y.under; |
261 | break; |
262 | } |
263 | /* verify if there is enough space to draw */ |
264 | if(unlikely(x + width <= draw_context->histo_drawinfo.end.x)) { |
265 | enough_space = TRUE; |
266 | *offset += width; |
267 | } |
268 | break; |
269 | case POS_END: |
270 | x = draw_context->histo_drawinfo.end.x; |
271 | switch(properties->histo_position.y) { |
272 | case OVER: |
273 | offset = &draw_context->histo_drawinfo.end.offset.over; |
274 | x += draw_context->histo_drawinfo.end.offset.over; |
275 | y = draw_context->histo_drawinfo.y.over; |
276 | break; |
277 | case MIDDLE: |
278 | offset = &draw_context->histo_drawinfo.end.offset.middle; |
279 | x += draw_context->histo_drawinfo.end.offset.middle; |
280 | y = draw_context->histo_drawinfo.y.middle; |
281 | break; |
282 | case UNDER: |
283 | offset = &draw_context->histo_drawinfo.end.offset.under; |
284 | x += draw_context->histo_drawinfo.end.offset.under; |
285 | y = draw_context->histo_drawinfo.y.under; |
286 | break; |
287 | } |
288 | /* verify if there is enough space to draw */ |
289 | if(unlikely(x - width >= draw_context->histo_drawinfo.start.x)) { |
290 | enough_space = TRUE; |
291 | *offset -= width; |
292 | } |
293 | break; |
294 | } |
295 | |
296 | if(unlikely(enough_space)) { |
297 | gdk_gc_set_clip_mask(draw_context->gc, icon_info->mask); |
298 | |
299 | gdk_gc_set_clip_origin( |
300 | draw_context->gc, |
301 | x, |
302 | y); |
303 | gdk_draw_drawable(draw_context->drawable, |
304 | draw_context->gc, |
305 | icon_info->pixmap, |
306 | 0, 0, |
307 | x, |
308 | y, |
309 | properties->width, properties->height); |
310 | |
311 | gdk_gc_set_clip_origin(draw_context->gc, 0, 0); |
312 | gdk_gc_set_clip_mask(draw_context->gc, NULL); |
313 | } |
314 | return 0; |
315 | } |
316 | |
317 | gboolean histo_draw_line( void *hook_data, void *call_data) |
318 | { |
319 | histo_PropertiesLine *properties = (histo_PropertiesLine*)hook_data; |
320 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; |
321 | |
322 | gdk_gc_set_foreground(draw_context->gc, &properties->color); |
323 | //gdk_gc_set_rgb_fg_color(draw_context->gc, &properties->color); |
324 | gdk_gc_set_line_attributes( draw_context->gc, |
325 | properties->line_width, |
326 | properties->style, |
327 | GDK_CAP_BUTT, |
328 | GDK_JOIN_MITER); |
329 | //g_critical("DRAWING LINE : x1: %i, y1: %i, x2:%i, y2:%i", |
330 | // draw_context->previous->middle->x, |
331 | // draw_context->previous->middle->y, |
332 | // draw_context->drawinfo.middle.x, |
333 | // draw_context->drawinfo.middle.y); |
334 | |
335 | gint x_begin=0, x_end=0, y=0; |
336 | |
337 | x_begin = draw_context->histo_drawinfo.start.x; |
338 | x_end = draw_context->histo_drawinfo.end.x; |
339 | |
340 | switch(properties->y) { |
341 | case OVER: |
342 | y = draw_context->histo_drawinfo.y.over; |
343 | break; |
344 | case MIDDLE: |
345 | y = draw_context->histo_drawinfo.y.middle; |
346 | break; |
347 | case UNDER: |
348 | y = draw_context->histo_drawinfo.y.under; |
349 | break; |
350 | } |
351 | |
352 | histo_drawing_draw_line( |
353 | NULL, draw_context->drawable, |
354 | x_begin, |
355 | y, |
356 | x_end, |
357 | y, |
358 | draw_context->gc); |
359 | |
360 | return 0; |
361 | } |
362 | |
363 | gboolean histo_draw_arc( void *hook_data, void *call_data) |
364 | { |
365 | histo_PropertiesArc *properties = (histo_PropertiesArc*)hook_data; |
366 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; |
367 | |
368 | gdk_gc_set_foreground(draw_context->gc, properties->color); |
369 | //gdk_gc_set_rgb_fg_color(draw_context->gc, properties->color); |
370 | |
371 | gint x=0, y=0; |
372 | gint *offset=NULL; |
373 | gboolean enough_space = FALSE; |
374 | gint width = properties->size; |
375 | |
376 | switch(properties->histo_position.x) { |
377 | case POS_START: |
378 | x = draw_context->histo_drawinfo.start.x; |
379 | switch(properties->histo_position.y) { |
380 | case OVER: |
381 | offset = &draw_context->histo_drawinfo.start.offset.over; |
382 | x += draw_context->histo_drawinfo.start.offset.over; |
383 | y = draw_context->histo_drawinfo.y.over; |
384 | break; |
385 | case MIDDLE: |
386 | offset = &draw_context->histo_drawinfo.start.offset.middle; |
387 | x += draw_context->histo_drawinfo.start.offset.middle; |
388 | y = draw_context->histo_drawinfo.y.middle; |
389 | break; |
390 | case UNDER: |
391 | offset = &draw_context->histo_drawinfo.start.offset.under; |
392 | x += draw_context->histo_drawinfo.start.offset.under; |
393 | y = draw_context->histo_drawinfo.y.under; |
394 | break; |
395 | } |
396 | /* verify if there is enough space to draw */ |
397 | if(unlikely(x + width <= draw_context->histo_drawinfo.end.x)) { |
398 | enough_space = TRUE; |
399 | *offset += width; |
400 | } |
401 | break; |
402 | case POS_END: |
403 | x = draw_context->histo_drawinfo.end.x; |
404 | switch(properties->histo_position.y) { |
405 | case OVER: |
406 | offset = &draw_context->histo_drawinfo.end.offset.over; |
407 | x += draw_context->histo_drawinfo.end.offset.over; |
408 | y = draw_context->histo_drawinfo.y.over; |
409 | break; |
410 | case MIDDLE: |
411 | offset = &draw_context->histo_drawinfo.end.offset.middle; |
412 | x += draw_context->histo_drawinfo.end.offset.middle; |
413 | y = draw_context->histo_drawinfo.y.middle; |
414 | break; |
415 | case UNDER: |
416 | offset = &draw_context->histo_drawinfo.end.offset.under; |
417 | x += draw_context->histo_drawinfo.end.offset.under; |
418 | y = draw_context->histo_drawinfo.y.under; |
419 | break; |
420 | } |
421 | /* verify if there is enough space to draw */ |
422 | if(unlikely(x - width >= draw_context->histo_drawinfo.start.x)) { |
423 | enough_space = TRUE; |
424 | *offset -= width; |
425 | } |
426 | break; |
427 | } |
428 | |
429 | if(unlikely(enough_space)) |
430 | gdk_draw_arc(draw_context->drawable, draw_context->gc, |
431 | properties->filled, |
432 | x, |
433 | y, |
434 | properties->size, properties->size, 0, 360*64); |
435 | |
436 | return 0; |
437 | } |
438 | |
439 | gboolean histo_draw_bg( void *hook_data, void *call_data) |
440 | { |
441 | histo_PropertiesBG *properties = (histo_PropertiesBG*)hook_data; |
442 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; |
443 | |
444 | gdk_gc_set_foreground(draw_context->gc, properties->color); |
445 | //gdk_gc_set_rgb_fg_color(draw_context->gc, properties->color); |
446 | |
447 | //g_critical("DRAWING RECT : x: %i, y: %i, w:%i, h:%i, val1 :%i, val2:%i ", |
448 | // draw_context->previous->over->x, |
449 | // draw_context->previous->over->y, |
450 | // draw_context->drawinfo.over.x - draw_context->previous->over->x, |
451 | // draw_context->previous->under->y-draw_context->previous->over->y, |
452 | // draw_context->drawinfo.over.x, |
453 | // draw_context->previous->over->x); |
454 | gdk_draw_rectangle(draw_context->drawable, draw_context->gc, |
455 | TRUE, |
456 | draw_context->histo_drawinfo.start.x, |
457 | draw_context->histo_drawinfo.y.over, |
458 | draw_context->histo_drawinfo.end.x - draw_context->histo_drawinfo.start.x, |
459 | draw_context->histo_drawinfo.y.under - draw_context->histo_drawinfo.y.over); |
460 | |
461 | return 0; |
462 | } |
463 | |
464 | |