* GQuark.) The habitual place for xpm icons is in
* ${prefix}/share/LinuxTraceToolkit.) + position (over or under line)
* - line (color, width, style)
- * - Arc (can be seen as points) (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
* 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.
+ * 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
+
/* The DrawContext keeps information about the current drawing position and
* the previous one, so we can use both to draw lines.
*
* over : position for drawing over the middle line.
* middle : middle line position.
* under : position for drawing under the middle line.
+ *
+ * the modify_* are used to take into account that we should go forward
+ * when we draw a text, an arc or an icon, while it's unneeded when we
+ * draw a line or background.
+ *
*/
struct _DrawContext {
GdkDrawable *drawable;
GdkGC *gc;
+
DrawInfo *Current;
DrawInfo *Previous;
ItemInfo *over;
ItemInfo *middle;
ItemInfo *under;
+
+ ItemInfo *modify_over;
+ ItemInfo *modify_middle;
+ ItemInfo *modify_under;
};
/* LttvExecutionState is accessible through the LttvTracefileState. Is has
LttvTracefileState *tfs;
};
+/*
+ * Structure used to keep information about icons.
+ */
+struct _IconStruct {
+ GdkPixmap *pixmap;
+ GdkBitmap *mask;
+};
+
/*
* The Item element is only used so the DrawOperation is modifiable by users.
* is in fact a rectangle, does not hide the line.
*/
-typedef enum _DrawableItems {
- ITEM_TEXT, ITEM_ICON, ITEM_LINE, ITEM_POINT, ITEM_BACKGROUND
-} DrawableItems;
-
-static gchar * Items_Priorities = {
+static int Items_Priorities[] = {
50, /* ITEM_TEXT */
40, /* ITEM_ICON */
20, /* ITEM_LINE */
10 /* ITEM_BACKGROUND */
};
-typedef enum _RelPos {
- OVER, MIDDLE, UNDER
-} RelPos;
-
/*
* Here are the different structures describing each item type that can be
* drawn. They contain the information necessary to draw the item : not the
};
-
-
-
/* Drawing hook functions */
-gboolean DrawText( void *hook_data, void *call_data)
+gboolean draw_text( void *hook_data, void *call_data)
{
PropertiesText *Properties = (PropertiesText*)hook_data;
DrawContext *Draw_Context = (DrawContext*)call_data;
+
+ PangoContext *context;
+ PangoLayout *layout;
+ PangoFontDescription *FontDesc;// = pango_font_description_new();
+ gint Font_Size;
+ PangoRectangle ink_rect;
+
+ gdk_gc_set_foreground(Draw_Context->gc, Properties->foreground);
+ gdk_gc_set_background(Draw_Context->gc, Properties->background);
+
+ layout = gtk_widget_create_pango_layout(GTK_WIDGET(Draw_Context->drawable), NULL);
+ context = pango_layout_get_context(layout);
+ FontDesc = pango_context_get_font_description(context);
+ Font_Size = pango_font_description_get_size(FontDesc);
+ pango_font_description_set_size(FontDesc, Properties->size*PANGO_SCALE);
+
+
+ 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(Draw_Context->drawable, Draw_Context->gc,
+ Draw_Context->Current->modify_over->x,
+ Draw_Context->Current->modify_over->y,
+ layout);
+ Draw_Context->Current->modify_over->x += ink_rect.width;
+
+ break;
+ case MIDDLE:
+ gdk_draw_layout(Draw_Context->drawable, Draw_Context->gc,
+ Draw_Context->Current->modify_middle->x,
+ Draw_Context->Current->modify_middle->y,
+ layout);
+ Draw_Context->Current->modify_middle->x += ink_rect.width;
+ break;
+ case UNDER:
+ gdk_draw_layout(Draw_Context->drawable, Draw_Context->gc,
+ Draw_Context->Current->modify_under->x,
+ Draw_Context->Current->modify_under->y,
+ layout);
+ Draw_Context->Current->modify_under->x += ink_rect.width;
+ break;
+ }
+
+
+ pango_font_description_set_size(FontDesc, Font_Size);
+ g_free(layout);
+
+ return 0;
}
-gboolean DrawIcon( void *hook_data, void *call_data)
+
+/* 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 DrawLine( void *hook_data, void *call_data)
+gboolean draw_line( void *hook_data, void *call_data)
{
PropertiesLine *Properties = (PropertiesLine*)hook_data;
DrawContext *Draw_Context = (DrawContext*)call_data;
+ gdk_gc_set_foreground(Draw_Context->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;
+ }
+
+ return 0;
}
-gboolean DrawArc( void *hook_data, void *call_data)
+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);
+
+ 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 DrawBG( void *hook_data, void *call_data)
+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_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