| 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/state.h> |
| 110 | #include <lttv/lttv.h> |
| 111 | |
| 112 | #include "histodrawitem.h" |
| 113 | #include "histodrawing.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 | gboolean retval; |
| 217 | |
| 218 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); |
| 219 | LttvAttributeValue value; |
| 220 | gchar icon_name[MAX_PATH_LEN] = "icons/"; |
| 221 | histo_IconStruct *icon_info; |
| 222 | |
| 223 | strcat(icon_name, properties->icon_name); |
| 224 | |
| 225 | retval= lttv_iattribute_find_by_path(attributes, icon_name, |
| 226 | LTTV_POINTER, &value); |
| 227 | g_assert(retval); |
| 228 | if(unlikely(*(value.v_pointer) == NULL)) |
| 229 | { |
| 230 | *(value.v_pointer) = icon_info = g_new(histo_IconStruct,1); |
| 231 | |
| 232 | icon_info->pixmap = gdk_pixmap_create_from_xpm(draw_context->drawable, |
| 233 | &icon_info->mask, NULL, properties->icon_name); |
| 234 | } |
| 235 | else |
| 236 | { |
| 237 | icon_info = *(value.v_pointer); |
| 238 | } |
| 239 | |
| 240 | gint x=0, y=0; |
| 241 | gint *offset=NULL; |
| 242 | gboolean enough_space = FALSE; |
| 243 | gint width = properties->width; |
| 244 | |
| 245 | switch(properties->histo_position.x) { |
| 246 | case POS_START: |
| 247 | x = draw_context->histo_drawinfo.start.x; |
| 248 | switch(properties->histo_position.y) { |
| 249 | case OVER: |
| 250 | offset = &draw_context->histo_drawinfo.start.offset.over; |
| 251 | x += draw_context->histo_drawinfo.start.offset.over; |
| 252 | y = draw_context->histo_drawinfo.y.over; |
| 253 | break; |
| 254 | case MIDDLE: |
| 255 | offset = &draw_context->histo_drawinfo.start.offset.middle; |
| 256 | x += draw_context->histo_drawinfo.start.offset.middle; |
| 257 | y = draw_context->histo_drawinfo.y.middle; |
| 258 | break; |
| 259 | case UNDER: |
| 260 | offset = &draw_context->histo_drawinfo.start.offset.under; |
| 261 | x += draw_context->histo_drawinfo.start.offset.under; |
| 262 | y = draw_context->histo_drawinfo.y.under; |
| 263 | break; |
| 264 | } |
| 265 | /* verify if there is enough space to draw */ |
| 266 | if(unlikely(x + width <= draw_context->histo_drawinfo.end.x)) { |
| 267 | enough_space = TRUE; |
| 268 | *offset += width; |
| 269 | } |
| 270 | break; |
| 271 | case POS_END: |
| 272 | x = draw_context->histo_drawinfo.end.x; |
| 273 | switch(properties->histo_position.y) { |
| 274 | case OVER: |
| 275 | offset = &draw_context->histo_drawinfo.end.offset.over; |
| 276 | x += draw_context->histo_drawinfo.end.offset.over; |
| 277 | y = draw_context->histo_drawinfo.y.over; |
| 278 | break; |
| 279 | case MIDDLE: |
| 280 | offset = &draw_context->histo_drawinfo.end.offset.middle; |
| 281 | x += draw_context->histo_drawinfo.end.offset.middle; |
| 282 | y = draw_context->histo_drawinfo.y.middle; |
| 283 | break; |
| 284 | case UNDER: |
| 285 | offset = &draw_context->histo_drawinfo.end.offset.under; |
| 286 | x += draw_context->histo_drawinfo.end.offset.under; |
| 287 | y = draw_context->histo_drawinfo.y.under; |
| 288 | break; |
| 289 | } |
| 290 | /* verify if there is enough space to draw */ |
| 291 | if(unlikely(x - width >= draw_context->histo_drawinfo.start.x)) { |
| 292 | enough_space = TRUE; |
| 293 | *offset -= width; |
| 294 | } |
| 295 | break; |
| 296 | } |
| 297 | |
| 298 | if(unlikely(enough_space)) { |
| 299 | gdk_gc_set_clip_mask(draw_context->gc, icon_info->mask); |
| 300 | |
| 301 | gdk_gc_set_clip_origin( |
| 302 | draw_context->gc, |
| 303 | x, |
| 304 | y); |
| 305 | gdk_draw_drawable(draw_context->drawable, |
| 306 | draw_context->gc, |
| 307 | icon_info->pixmap, |
| 308 | 0, 0, |
| 309 | x, |
| 310 | y, |
| 311 | properties->width, properties->height); |
| 312 | |
| 313 | gdk_gc_set_clip_origin(draw_context->gc, 0, 0); |
| 314 | gdk_gc_set_clip_mask(draw_context->gc, NULL); |
| 315 | } |
| 316 | return 0; |
| 317 | } |
| 318 | |
| 319 | gboolean histo_draw_line( void *hook_data, void *call_data) |
| 320 | { |
| 321 | histo_PropertiesLine *properties = (histo_PropertiesLine*)hook_data; |
| 322 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; |
| 323 | |
| 324 | gdk_gc_set_foreground(draw_context->gc, &properties->color); |
| 325 | //gdk_gc_set_rgb_fg_color(draw_context->gc, &properties->color); |
| 326 | gdk_gc_set_line_attributes( draw_context->gc, |
| 327 | properties->line_width, |
| 328 | properties->style, |
| 329 | GDK_CAP_BUTT, |
| 330 | GDK_JOIN_MITER); |
| 331 | //g_critical("DRAWING LINE : x1: %i, y1: %i, x2:%i, y2:%i", |
| 332 | // draw_context->previous->middle->x, |
| 333 | // draw_context->previous->middle->y, |
| 334 | // draw_context->drawinfo.middle.x, |
| 335 | // draw_context->drawinfo.middle.y); |
| 336 | |
| 337 | gint x_begin=0, x_end=0, y=0; |
| 338 | |
| 339 | x_begin = draw_context->histo_drawinfo.start.x; |
| 340 | x_end = draw_context->histo_drawinfo.end.x; |
| 341 | |
| 342 | switch(properties->y) { |
| 343 | case OVER: |
| 344 | y = draw_context->histo_drawinfo.y.over; |
| 345 | break; |
| 346 | case MIDDLE: |
| 347 | y = draw_context->histo_drawinfo.y.middle; |
| 348 | break; |
| 349 | case UNDER: |
| 350 | y = draw_context->histo_drawinfo.y.under; |
| 351 | break; |
| 352 | } |
| 353 | |
| 354 | histo_drawing_draw_line( |
| 355 | NULL, draw_context->drawable, |
| 356 | x_begin, |
| 357 | y, |
| 358 | x_end, |
| 359 | y, |
| 360 | draw_context->gc); |
| 361 | |
| 362 | return 0; |
| 363 | } |
| 364 | |
| 365 | gboolean histo_draw_arc( void *hook_data, void *call_data) |
| 366 | { |
| 367 | histo_PropertiesArc *properties = (histo_PropertiesArc*)hook_data; |
| 368 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; |
| 369 | |
| 370 | gdk_gc_set_foreground(draw_context->gc, properties->color); |
| 371 | //gdk_gc_set_rgb_fg_color(draw_context->gc, properties->color); |
| 372 | |
| 373 | gint x=0, y=0; |
| 374 | gint *offset=NULL; |
| 375 | gboolean enough_space = FALSE; |
| 376 | gint width = properties->size; |
| 377 | |
| 378 | switch(properties->histo_position.x) { |
| 379 | case POS_START: |
| 380 | x = draw_context->histo_drawinfo.start.x; |
| 381 | switch(properties->histo_position.y) { |
| 382 | case OVER: |
| 383 | offset = &draw_context->histo_drawinfo.start.offset.over; |
| 384 | x += draw_context->histo_drawinfo.start.offset.over; |
| 385 | y = draw_context->histo_drawinfo.y.over; |
| 386 | break; |
| 387 | case MIDDLE: |
| 388 | offset = &draw_context->histo_drawinfo.start.offset.middle; |
| 389 | x += draw_context->histo_drawinfo.start.offset.middle; |
| 390 | y = draw_context->histo_drawinfo.y.middle; |
| 391 | break; |
| 392 | case UNDER: |
| 393 | offset = &draw_context->histo_drawinfo.start.offset.under; |
| 394 | x += draw_context->histo_drawinfo.start.offset.under; |
| 395 | y = draw_context->histo_drawinfo.y.under; |
| 396 | break; |
| 397 | } |
| 398 | /* verify if there is enough space to draw */ |
| 399 | if(unlikely(x + width <= draw_context->histo_drawinfo.end.x)) { |
| 400 | enough_space = TRUE; |
| 401 | *offset += width; |
| 402 | } |
| 403 | break; |
| 404 | case POS_END: |
| 405 | x = draw_context->histo_drawinfo.end.x; |
| 406 | switch(properties->histo_position.y) { |
| 407 | case OVER: |
| 408 | offset = &draw_context->histo_drawinfo.end.offset.over; |
| 409 | x += draw_context->histo_drawinfo.end.offset.over; |
| 410 | y = draw_context->histo_drawinfo.y.over; |
| 411 | break; |
| 412 | case MIDDLE: |
| 413 | offset = &draw_context->histo_drawinfo.end.offset.middle; |
| 414 | x += draw_context->histo_drawinfo.end.offset.middle; |
| 415 | y = draw_context->histo_drawinfo.y.middle; |
| 416 | break; |
| 417 | case UNDER: |
| 418 | offset = &draw_context->histo_drawinfo.end.offset.under; |
| 419 | x += draw_context->histo_drawinfo.end.offset.under; |
| 420 | y = draw_context->histo_drawinfo.y.under; |
| 421 | break; |
| 422 | } |
| 423 | /* verify if there is enough space to draw */ |
| 424 | if(unlikely(x - width >= draw_context->histo_drawinfo.start.x)) { |
| 425 | enough_space = TRUE; |
| 426 | *offset -= width; |
| 427 | } |
| 428 | break; |
| 429 | } |
| 430 | |
| 431 | if(unlikely(enough_space)) |
| 432 | gdk_draw_arc(draw_context->drawable, draw_context->gc, |
| 433 | properties->filled, |
| 434 | x, |
| 435 | y, |
| 436 | properties->size, properties->size, 0, 360*64); |
| 437 | |
| 438 | return 0; |
| 439 | } |
| 440 | |
| 441 | gboolean histo_draw_bg( void *hook_data, void *call_data) |
| 442 | { |
| 443 | histo_PropertiesBG *properties = (histo_PropertiesBG*)hook_data; |
| 444 | histo_DrawContext *draw_context = (histo_DrawContext*)call_data; |
| 445 | |
| 446 | gdk_gc_set_foreground(draw_context->gc, properties->color); |
| 447 | //gdk_gc_set_rgb_fg_color(draw_context->gc, properties->color); |
| 448 | |
| 449 | //g_critical("DRAWING RECT : x: %i, y: %i, w:%i, h:%i, val1 :%i, val2:%i ", |
| 450 | // draw_context->previous->over->x, |
| 451 | // draw_context->previous->over->y, |
| 452 | // draw_context->drawinfo.over.x - draw_context->previous->over->x, |
| 453 | // draw_context->previous->under->y-draw_context->previous->over->y, |
| 454 | // draw_context->drawinfo.over.x, |
| 455 | // draw_context->previous->over->x); |
| 456 | gdk_draw_rectangle(draw_context->drawable, draw_context->gc, |
| 457 | TRUE, |
| 458 | draw_context->histo_drawinfo.start.x, |
| 459 | draw_context->histo_drawinfo.y.over, |
| 460 | draw_context->histo_drawinfo.end.x - draw_context->histo_drawinfo.start.x, |
| 461 | draw_context->histo_drawinfo.y.under - draw_context->histo_drawinfo.y.over); |
| 462 | |
| 463 | return 0; |
| 464 | } |
| 465 | |
| 466 | |