* in a drawable. Doing this generically will permit user defined drawing
* behavior in a later time.
*
+ * This file provides an API which is meant to be reusable for all viewers that
+ * need to show information in line, icon, text, background or point form in
+ * a drawable area having time for x axis. The y axis, in the control flow
+ * viewer case, is corresponding to the different processes, but it can be
+ * reused integrally for cpu, and eventually locks, buffers, network
+ * interfaces... What will differ between the viewers is the precise
+ * information which interests us. We may think that the most useful
+ * information for control flow are some specific events, like schedule
+ * change, and processes'states. It may differ for a cpu viewer : the
+ * interesting information could be more the execution mode of each cpu.
+ * This API in meant to make viewer's writers life easier : it will become
+ * a simple choice of icons and line types for the precise information
+ * the viewer has to provide (agremented with keeping supplementary records
+ * and modifying slightly the DrawContext to suit the needs.)
+ *
* We keep each data type in attributes, keys to specific information
* being formed from the GQuark corresponding to the information received.
* (facilities / facility_name / events / eventname.)
* GQuark.) The habitual place for xpm icons is in
* ${prefix}/share/LinuxTraceToolkit.) + position (over or under line)
* - line (color, width, style)
- * - point (color, size)
+ * - Arc (big points) (color, size)
* - background color (color)
*
+ * An item is a leaf of the attributes tree. It is, in that case, including
+ * all kind of events categories we can have. It then associates each category
+ * with one or more actions (drawing something) or nothing.
+ *
* Each item has an array of hooks (hook list). Each hook represents an
* operation to perform. We seek the array each time we want to
* draw an item. We execute each operation in order. An operation type
* text being easy to replace with icons. The DrawContext is passed as
* call_data for the operation hooks.
*
+ * We use the lttv global attributes to keep track of the loaded icons.
+ * If we need an icon, we look for it in the icons / icon name pathname.
+ * If found, we use the pointer to it. If not, we load the pixmap in
+ * memory and set the pointer to the GdkPixmap in the attributes. The
+ * structure pointed to contains the pixmap and the mask bitmap.
+ *
* Author : Mathieu Desnoyers, October 2003
*/
#include <glib.h>
+#include <gtk/gtk.h>
+#include <gdk/gdk.h>
#include <lttv/hook.h>
#include <lttv/attribute.h>
#include <lttv/iattribute.h>
+#include <string.h>
+
+#include <lttv/processTrace.h>
+#include <lttv/state.h>
+
+#include "Draw_Item.h"
+
+
+#define MAX_PATH_LEN 256
+
+/* drawing hook functions */
+gboolean draw_text( void *hook_data, void *call_data)
+{
+ PropertiesText *Properties = (PropertiesText*)hook_data;
+ DrawContext *Draw_Context = (DrawContext*)call_data;
+
+ PangoContext *context;
+ PangoLayout *layout;
+ PangoAttribute *attribute;
+ PangoFontDescription *FontDesc;// = pango_font_description_new();
+ gint Font_Size;
+ PangoRectangle ink_rect;
+
+ layout = Draw_Context->pango_layout;
+
+ context = pango_layout_get_context(layout);
+ FontDesc = pango_context_get_font_description(context);
+
+ pango_font_description_set_size(FontDesc, Properties->size*PANGO_SCALE);
+ pango_layout_context_changed(layout);
+
+ pango_layout_set_text(layout, Properties->text, -1);
+ pango_layout_get_pixel_extents(layout, &ink_rect, NULL);
+ switch(Properties->position) {
+ case OVER:
+ gdk_draw_layout_with_colors(Draw_Context->drawable,
+ Draw_Context->gc,
+ Draw_Context->current->modify_over->x,
+ Draw_Context->current->modify_over->y,
+ layout, Properties->foreground, Properties->background);
+ Draw_Context->current->modify_over->x += ink_rect.width;
+
+ break;
+ case MIDDLE:
+ gdk_draw_layout_with_colors(Draw_Context->drawable,
+ Draw_Context->gc,
+ Draw_Context->current->modify_middle->x,
+ Draw_Context->current->modify_middle->y,
+ layout, Properties->foreground, Properties->background);
+ Draw_Context->current->modify_middle->x += ink_rect.width;
+ break;
+ case UNDER:
+ gdk_draw_layout_with_colors(Draw_Context->drawable,
+ Draw_Context->gc,
+ Draw_Context->current->modify_under->x,
+ Draw_Context->current->modify_under->y,
+ layout, Properties->foreground, Properties->background);
+ Draw_Context->current->modify_under->x += ink_rect.width;
+ break;
+ }
+
+ return 0;
+}
+
+
+/* To speed up the process, search in already loaded icons list first. Only
+ * load it if not present.
+ */
+gboolean draw_icon( void *hook_data, void *call_data)
+{
+ PropertiesIcon *Properties = (PropertiesIcon*)hook_data;
+ DrawContext *Draw_Context = (DrawContext*)call_data;
+
+ LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes());
+ LttvAttributeValue value;
+ gchar icon_name[MAX_PATH_LEN] = "icons/";
+ IconStruct *icon_info;
+
+ strcat(icon_name, Properties->icon_name);
+
+ g_assert(lttv_iattribute_find_by_path(attributes, icon_name,
+ LTTV_POINTER, &value));
+ if(*(value.v_pointer) == NULL)
+ {
+ *(value.v_pointer) = icon_info = g_new(IconStruct,1);
+
+ icon_info->pixmap = gdk_pixmap_create_from_xpm(Draw_Context->drawable,
+ &icon_info->mask, NULL, Properties->icon_name);
+ }
+ else
+ {
+ icon_info = *(value.v_pointer);
+ }
+
+ gdk_gc_set_clip_mask(Draw_Context->gc, icon_info->mask);
+
+ switch(Properties->position) {
+ case OVER:
+ gdk_gc_set_clip_origin(
+ Draw_Context->gc,
+ Draw_Context->current->modify_over->x,
+ Draw_Context->current->modify_over->y);
+ gdk_draw_drawable(Draw_Context->drawable,
+ Draw_Context->gc,
+ icon_info->pixmap,
+ 0, 0,
+ Draw_Context->current->modify_over->x,
+ Draw_Context->current->modify_over->y,
+ Properties->width, Properties->height);
+
+ Draw_Context->current->modify_over->x += Properties->width;
+
+ break;
+ case MIDDLE:
+ gdk_gc_set_clip_origin(
+ Draw_Context->gc,
+ Draw_Context->current->modify_middle->x,
+ Draw_Context->current->modify_middle->y);
+ gdk_draw_drawable(Draw_Context->drawable,
+ Draw_Context->gc,
+ icon_info->pixmap,
+ 0, 0,
+ Draw_Context->current->modify_middle->x,
+ Draw_Context->current->modify_middle->y,
+ Properties->width, Properties->height);
+
+ Draw_Context->current->modify_middle->x += Properties->width;
+ break;
+ case UNDER:
+ gdk_gc_set_clip_origin(
+ Draw_Context->gc,
+ Draw_Context->current->modify_under->x,
+ Draw_Context->current->modify_under->y);
+ gdk_draw_drawable(Draw_Context->drawable,
+ Draw_Context->gc,
+ icon_info->pixmap,
+ 0, 0,
+ Draw_Context->current->modify_under->x,
+ Draw_Context->current->modify_under->y,
+ Properties->width, Properties->height);
+
+ Draw_Context->current->modify_under->x += Properties->width;
+ break;
+ }
+
+ gdk_gc_set_clip_origin(Draw_Context->gc, 0, 0);
+ gdk_gc_set_clip_mask(Draw_Context->gc, NULL);
+
+ return 0;
+}
+
+gboolean draw_line( void *hook_data, void *call_data)
+{
+ PropertiesLine *Properties = (PropertiesLine*)hook_data;
+ DrawContext *Draw_Context = (DrawContext*)call_data;
+ //GdkGC *gc = gdk_gc_new(Draw_Context->drawable);
+
+ //gdk_gc_set_foreground(Draw_Context->gc, Properties->color);
+ gdk_gc_set_rgb_fg_color(Draw_Context->gc, Properties->color);
+ //gdk_gc_set_foreground(gc, Properties->color);
+ gdk_gc_set_line_attributes( Draw_Context->gc,
+ Properties->line_width,
+ Properties->style,
+ GDK_CAP_BUTT,
+ GDK_JOIN_MITER);
+
+ switch(Properties->position) {
+ case OVER:
+ drawing_draw_line(
+ NULL, Draw_Context->drawable,
+ Draw_Context->previous->over->x,
+ Draw_Context->previous->over->y,
+ Draw_Context->current->over->x,
+ Draw_Context->current->over->y,
+ Draw_Context->gc);
+ break;
+ case MIDDLE:
+ drawing_draw_line(
+ NULL, Draw_Context->drawable,
+ Draw_Context->previous->middle->x,
+ Draw_Context->previous->middle->y,
+ Draw_Context->current->middle->x,
+ Draw_Context->current->middle->y,
+ Draw_Context->gc);
+ break;
+ case UNDER:
+ drawing_draw_line(
+ NULL, Draw_Context->drawable,
+ Draw_Context->previous->under->x,
+ Draw_Context->previous->under->y,
+ Draw_Context->current->under->x,
+ Draw_Context->current->under->y,
+ Draw_Context->gc);
+
+ break;
+ }
+
+ //gdk_gc_unref(gc);
+
+ return 0;
+}
+
+gboolean draw_arc( void *hook_data, void *call_data)
+{
+ PropertiesArc *Properties = (PropertiesArc*)hook_data;
+ DrawContext *Draw_Context = (DrawContext*)call_data;
+
+ //gdk_gc_set_foreground(Draw_Context->gc, Properties->color);
+ gdk_gc_set_rgb_fg_color(Draw_Context->gc, Properties->color);
+
+ switch(Properties->position) {
+ case OVER:
+ gdk_draw_arc(Draw_Context->drawable, Draw_Context->gc,
+ Properties->filled,
+ Draw_Context->current->modify_over->x,
+ Draw_Context->current->modify_over->y,
+ Properties->size, Properties->size, 0, 360*64);
+ Draw_Context->current->modify_over->x += Properties->size;
+ break;
+ case MIDDLE:
+ gdk_draw_arc(Draw_Context->drawable, Draw_Context->gc,
+ Properties->filled,
+ Draw_Context->current->modify_middle->x,
+ Draw_Context->current->modify_middle->y,
+ Properties->size, Properties->size, 0, 360*64);
+ Draw_Context->current->modify_middle->x += Properties->size;
+
+ break;
+ case UNDER:
+ gdk_draw_arc(Draw_Context->drawable, Draw_Context->gc,
+ Properties->filled,
+ Draw_Context->current->modify_under->x,
+ Draw_Context->current->modify_under->y,
+ Properties->size, Properties->size, 0, 360*64);
+ Draw_Context->current->modify_under->x += Properties->size;
+
+ break;
+ }
+
+
+ return 0;
+}
+
+gboolean draw_bg( void *hook_data, void *call_data)
+{
+ PropertiesBG *Properties = (PropertiesBG*)hook_data;
+ DrawContext *Draw_Context = (DrawContext*)call_data;
+
+ //gdk_gc_set_foreground(Draw_Context->gc, Properties->color);
+ gdk_gc_set_rgb_fg_color(Draw_Context->gc, Properties->color);
+
+
+ gdk_draw_rectangle(Draw_Context->drawable, Draw_Context->gc,
+ TRUE,
+ Draw_Context->previous->over->x,
+ Draw_Context->previous->over->y,
+ Draw_Context->current->over->x - Draw_Context->previous->over->x,
+ Draw_Context->previous->under->y);
+
+ return 0;
+}
+
projects / lttv.git / blobdiff