cf6cb7e0 |
1 | /****************************************************************************** |
2 | * Draw_Item.c |
3 | * |
4 | * This file contains methods responsible for drawing a generic type of data |
5 | * in a drawable. Doing this generically will permit user defined drawing |
6 | * behavior in a later time. |
7 | * |
b782dd11 |
8 | * This file provides an API which is meant to be reusable for all viewers that |
9 | * need to show information in line, icon, text, background or point form in |
10 | * a drawable area having time for x axis. The y axis, in the control flow |
11 | * viewer case, is corresponding to the different processes, but it can be |
12 | * reused integrally for cpu, and eventually locks, buffers, network |
13 | * interfaces... What will differ between the viewers is the precise |
14 | * information which interests us. We may think that the most useful |
15 | * information for control flow are some specific events, like schedule |
16 | * change, and processes'states. It may differ for a cpu viewer : the |
17 | * interesting information could be more the execution mode of each cpu. |
18 | * This API in meant to make viewer's writers life easier : it will become |
19 | * a simple choice of icons and line types for the precise information |
20 | * the viewer has to provide (agremented with keeping supplementary records |
21 | * and modifying slightly the DrawContext to suit the needs.) |
22 | * |
f0728492 |
23 | * We keep each data type in attributes, keys to specific information |
24 | * being formed from the GQuark corresponding to the information received. |
25 | * (facilities / facility_name / events / eventname.) |
26 | * (cpus/cpu_name, process_states/ps_name, |
27 | * execution_modes/em_name, execution_submodes/es_name). |
cf6cb7e0 |
28 | * The goal is then to provide a generic way to print information on the |
29 | * screen for all this different information. |
30 | * |
31 | * Information can be printed as |
32 | * |
33 | * - text (text + color + size + position (over or under line) |
34 | * - icon (icon filename, corresponding to a loaded icon, accessible through |
35 | * a GQuark. Icons are loaded statically at the guiControlFlow level during |
36 | * module initialization and can be added on the fly if not present in the |
37 | * GQuark.) The habitual place for xpm icons is in |
38 | * ${prefix}/share/LinuxTraceToolkit.) + position (over or under line) |
39 | * - line (color, width, style) |
189a5d08 |
40 | * - Arc (big points) (color, size) |
cf6cb7e0 |
41 | * - background color (color) |
42 | * |
189a5d08 |
43 | * An item is a leaf of the attributes tree. It is, in that case, including |
44 | * all kind of events categories we can have. It then associates each category |
45 | * with one or more actions (drawing something) or nothing. |
46 | * |
7d5ffafa |
47 | * Each item has an array of hooks (hook list). Each hook represents an |
48 | * operation to perform. We seek the array each time we want to |
a2e850ff |
49 | * draw an item. We execute each operation in order. An operation type |
50 | * is associated with each hook to permit user listing and modification |
51 | * of these operations. The operation type is also used to find the |
52 | * corresponding priority for the sorting. Operation type and priorities |
53 | * are enum and a static int table. |
cf6cb7e0 |
54 | * |
55 | * The array has to be sorted by priority each time we add a task in it. |
a2e850ff |
56 | * A priority is associated with each operation type. It permits |
cf6cb7e0 |
57 | * to perform background color selection before line or text drawing. We also |
58 | * draw lines before text, so the text appears over the lines. |
59 | * |
60 | * Executing all the arrays of operations for a specific event (which |
61 | * implies information for state, event, cpu, execution mode and submode) |
62 | * has to be done in a same DrawContext. The goal there is to keep the offset |
63 | * of the text and icons over and under the middle line, so a specific |
64 | * event could be printed as ( R Si 0 for running, scheduled in, cpu 0 ), |
7d5ffafa |
65 | * text being easy to replace with icons. The DrawContext is passed as |
66 | * call_data for the operation hooks. |
cf6cb7e0 |
67 | * |
b782dd11 |
68 | * We use the lttv global attributes to keep track of the loaded icons. |
69 | * If we need an icon, we look for it in the icons / icon name pathname. |
70 | * If found, we use the pointer to it. If not, we load the pixmap in |
1a31868c |
71 | * memory and set the pointer to the GdkPixmap in the attributes. The |
72 | * structure pointed to contains the pixmap and the mask bitmap. |
b782dd11 |
73 | * |
cf6cb7e0 |
74 | * Author : Mathieu Desnoyers, October 2003 |
75 | */ |
7d5ffafa |
76 | |
77 | #include <glib.h> |
09e2606f |
78 | #include <gtk/gtk.h> |
79 | #include <gdk/gdk.h> |
7d5ffafa |
80 | #include <lttv/hook.h> |
f0728492 |
81 | #include <lttv/attribute.h> |
82 | #include <lttv/iattribute.h> |
1a31868c |
83 | #include <string.h> |
7d5ffafa |
84 | |
b782dd11 |
85 | #include <lttv/processTrace.h> |
86 | #include <lttv/state.h> |
87 | |
09e2606f |
88 | #include "Draw_Item.h" |
1a31868c |
89 | |
90 | |
91 | #define MAX_PATH_LEN 256 |
92 | |
b782dd11 |
93 | /* Drawing hook functions */ |
4c69e0cc |
94 | gboolean draw_text( void *hook_data, void *call_data) |
b782dd11 |
95 | { |
96 | PropertiesText *Properties = (PropertiesText*)hook_data; |
97 | DrawContext *Draw_Context = (DrawContext*)call_data; |
09e2606f |
98 | |
99 | PangoContext *context; |
100 | PangoLayout *layout; |
101 | PangoFontDescription *FontDesc;// = pango_font_description_new(); |
102 | gint Font_Size; |
103 | PangoRectangle ink_rect; |
104 | |
105 | gdk_gc_set_foreground(Draw_Context->gc, Properties->foreground); |
106 | gdk_gc_set_background(Draw_Context->gc, Properties->background); |
107 | |
108 | layout = gtk_widget_create_pango_layout(GTK_WIDGET(Draw_Context->drawable), NULL); |
109 | context = pango_layout_get_context(layout); |
110 | FontDesc = pango_context_get_font_description(context); |
111 | Font_Size = pango_font_description_get_size(FontDesc); |
112 | pango_font_description_set_size(FontDesc, Properties->size*PANGO_SCALE); |
113 | |
114 | |
115 | pango_layout_set_text(layout, Properties->Text, -1); |
116 | pango_layout_get_pixel_extents(layout, &ink_rect, NULL); |
117 | switch(Properties->position) { |
118 | case OVER: |
119 | gdk_draw_layout(Draw_Context->drawable, Draw_Context->gc, |
120 | Draw_Context->Current->modify_over->x, |
121 | Draw_Context->Current->modify_over->y, |
122 | layout); |
123 | Draw_Context->Current->modify_over->x += ink_rect.width; |
124 | |
125 | break; |
126 | case MIDDLE: |
127 | gdk_draw_layout(Draw_Context->drawable, Draw_Context->gc, |
128 | Draw_Context->Current->modify_middle->x, |
129 | Draw_Context->Current->modify_middle->y, |
130 | layout); |
131 | Draw_Context->Current->modify_middle->x += ink_rect.width; |
132 | break; |
133 | case UNDER: |
134 | gdk_draw_layout(Draw_Context->drawable, Draw_Context->gc, |
135 | Draw_Context->Current->modify_under->x, |
136 | Draw_Context->Current->modify_under->y, |
137 | layout); |
138 | Draw_Context->Current->modify_under->x += ink_rect.width; |
139 | break; |
140 | } |
141 | |
142 | |
143 | pango_font_description_set_size(FontDesc, Font_Size); |
144 | g_free(layout); |
145 | |
146 | return 0; |
b782dd11 |
147 | } |
148 | |
1a31868c |
149 | |
150 | /* To speed up the process, search in already loaded icons list first. Only |
151 | * load it if not present. |
152 | */ |
4c69e0cc |
153 | gboolean draw_icon( void *hook_data, void *call_data) |
b782dd11 |
154 | { |
155 | PropertiesIcon *Properties = (PropertiesIcon*)hook_data; |
156 | DrawContext *Draw_Context = (DrawContext*)call_data; |
157 | |
1a31868c |
158 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); |
159 | LttvAttributeValue value; |
160 | gchar icon_name[MAX_PATH_LEN] = "icons/"; |
161 | IconStruct *icon_info; |
8d088fb2 |
162 | |
1a31868c |
163 | strcat(icon_name, Properties->icon_name); |
164 | |
165 | g_assert(lttv_iattribute_find_by_path(attributes, icon_name, |
166 | LTTV_POINTER, &value)); |
167 | if(*(value.v_pointer) == NULL) |
168 | { |
169 | *(value.v_pointer) = icon_info = g_new(IconStruct,1); |
170 | |
171 | icon_info->pixmap = gdk_pixmap_create_from_xpm(Draw_Context->drawable, |
172 | &icon_info->mask, NULL, Properties->icon_name); |
173 | } |
174 | else |
175 | { |
176 | icon_info = *(value.v_pointer); |
177 | } |
178 | |
179 | gdk_gc_set_clip_mask(Draw_Context->gc, icon_info->mask); |
180 | |
09e2606f |
181 | switch(Properties->position) { |
182 | case OVER: |
1a31868c |
183 | gdk_gc_set_clip_origin( |
184 | Draw_Context->gc, |
185 | Draw_Context->Current->modify_over->x, |
186 | Draw_Context->Current->modify_over->y); |
09e2606f |
187 | gdk_draw_drawable(Draw_Context->drawable, |
1a31868c |
188 | Draw_Context->gc, |
189 | icon_info->pixmap, |
09e2606f |
190 | 0, 0, |
191 | Draw_Context->Current->modify_over->x, |
192 | Draw_Context->Current->modify_over->y, |
193 | Properties->width, Properties->height); |
194 | |
195 | Draw_Context->Current->modify_over->x += Properties->width; |
196 | |
197 | break; |
198 | case MIDDLE: |
1a31868c |
199 | gdk_gc_set_clip_origin( |
200 | Draw_Context->gc, |
201 | Draw_Context->Current->modify_middle->x, |
202 | Draw_Context->Current->modify_middle->y); |
09e2606f |
203 | gdk_draw_drawable(Draw_Context->drawable, |
1a31868c |
204 | Draw_Context->gc, |
205 | icon_info->pixmap, |
09e2606f |
206 | 0, 0, |
207 | Draw_Context->Current->modify_middle->x, |
208 | Draw_Context->Current->modify_middle->y, |
209 | Properties->width, Properties->height); |
210 | |
09e2606f |
211 | Draw_Context->Current->modify_middle->x += Properties->width; |
212 | break; |
213 | case UNDER: |
1a31868c |
214 | gdk_gc_set_clip_origin( |
215 | Draw_Context->gc, |
216 | Draw_Context->Current->modify_under->x, |
217 | Draw_Context->Current->modify_under->y); |
09e2606f |
218 | gdk_draw_drawable(Draw_Context->drawable, |
1a31868c |
219 | Draw_Context->gc, |
220 | icon_info->pixmap, |
09e2606f |
221 | 0, 0, |
222 | Draw_Context->Current->modify_under->x, |
223 | Draw_Context->Current->modify_under->y, |
224 | Properties->width, Properties->height); |
225 | |
226 | Draw_Context->Current->modify_under->x += Properties->width; |
227 | break; |
228 | } |
229 | |
1a31868c |
230 | gdk_gc_set_clip_origin(Draw_Context->gc, 0, 0); |
231 | gdk_gc_set_clip_mask(Draw_Context->gc, NULL); |
09e2606f |
232 | |
233 | return 0; |
b782dd11 |
234 | } |
235 | |
4c69e0cc |
236 | gboolean draw_line( void *hook_data, void *call_data) |
b782dd11 |
237 | { |
238 | PropertiesLine *Properties = (PropertiesLine*)hook_data; |
239 | DrawContext *Draw_Context = (DrawContext*)call_data; |
240 | |
09e2606f |
241 | gdk_gc_set_foreground(Draw_Context->gc, Properties->color); |
242 | gdk_gc_set_line_attributes( Draw_Context->gc, |
243 | Properties->line_width, |
244 | Properties->style, |
245 | GDK_CAP_BUTT, |
246 | GDK_JOIN_MITER); |
247 | |
248 | switch(Properties->position) { |
249 | case OVER: |
250 | drawing_draw_line( |
251 | NULL, Draw_Context->drawable, |
252 | Draw_Context->Previous->over->x, |
253 | Draw_Context->Previous->over->y, |
254 | Draw_Context->Current->over->x, |
255 | Draw_Context->Current->over->y, |
256 | Draw_Context->gc); |
257 | break; |
258 | case MIDDLE: |
259 | drawing_draw_line( |
260 | NULL, Draw_Context->drawable, |
261 | Draw_Context->Previous->middle->x, |
262 | Draw_Context->Previous->middle->y, |
263 | Draw_Context->Current->middle->x, |
264 | Draw_Context->Current->middle->y, |
265 | Draw_Context->gc); |
266 | break; |
267 | case UNDER: |
268 | drawing_draw_line( |
269 | NULL, Draw_Context->drawable, |
270 | Draw_Context->Previous->under->x, |
271 | Draw_Context->Previous->under->y, |
272 | Draw_Context->Current->under->x, |
273 | Draw_Context->Current->under->y, |
274 | Draw_Context->gc); |
275 | |
276 | break; |
277 | } |
278 | |
279 | return 0; |
b782dd11 |
280 | } |
281 | |
4c69e0cc |
282 | gboolean draw_arc( void *hook_data, void *call_data) |
b782dd11 |
283 | { |
284 | PropertiesArc *Properties = (PropertiesArc*)hook_data; |
285 | DrawContext *Draw_Context = (DrawContext*)call_data; |
286 | |
09e2606f |
287 | gdk_gc_set_foreground(Draw_Context->gc, Properties->color); |
288 | |
289 | switch(Properties->position) { |
290 | case OVER: |
291 | gdk_draw_arc(Draw_Context->drawable, Draw_Context->gc, |
292 | Properties->filled, |
293 | Draw_Context->Current->modify_over->x, |
294 | Draw_Context->Current->modify_over->y, |
295 | Properties->size, Properties->size, 0, 360*64); |
296 | Draw_Context->Current->modify_over->x += Properties->size; |
09e2606f |
297 | break; |
298 | case MIDDLE: |
299 | gdk_draw_arc(Draw_Context->drawable, Draw_Context->gc, |
300 | Properties->filled, |
301 | Draw_Context->Current->modify_middle->x, |
302 | Draw_Context->Current->modify_middle->y, |
303 | Properties->size, Properties->size, 0, 360*64); |
304 | Draw_Context->Current->modify_middle->x += Properties->size; |
305 | |
306 | break; |
307 | case UNDER: |
308 | gdk_draw_arc(Draw_Context->drawable, Draw_Context->gc, |
309 | Properties->filled, |
310 | Draw_Context->Current->modify_under->x, |
311 | Draw_Context->Current->modify_under->y, |
312 | Properties->size, Properties->size, 0, 360*64); |
313 | Draw_Context->Current->modify_under->x += Properties->size; |
314 | |
315 | break; |
316 | } |
317 | |
318 | |
319 | return 0; |
b782dd11 |
320 | } |
321 | |
4c69e0cc |
322 | gboolean draw_bg( void *hook_data, void *call_data) |
b782dd11 |
323 | { |
324 | PropertiesBG *Properties = (PropertiesBG*)hook_data; |
325 | DrawContext *Draw_Context = (DrawContext*)call_data; |
326 | |
09e2606f |
327 | gdk_gc_set_foreground(Draw_Context->gc, Properties->color); |
328 | |
329 | |
330 | gdk_draw_rectangle(Draw_Context->drawable, Draw_Context->gc, |
331 | TRUE, |
332 | Draw_Context->Previous->over->x, |
333 | Draw_Context->Previous->over->y, |
334 | Draw_Context->Current->over->x - Draw_Context->Previous->over->x, |
335 | Draw_Context->Previous->under->y); |
336 | |
337 | return 0; |
b782dd11 |
338 | } |
339 | |
340 | |