} Background;
+// way to calculate the size
+// SIZE_BY_LAYOUT objects : taskbar and task
+// SIZE_BY_CONTENT objects : clock, battery, launcher, systray
+enum { SIZE_BY_LAYOUT, SIZE_BY_CONTENT };
typedef struct {
// coordinate relative to panel window
// list of child : Area object
GSList *list;
+ // object visible on screen.
+ // An object (like systray) could be enabled but hidden (because no tray icon).
int on_screen;
- // need compute position and width
+ // way to calculate the size (SIZE_BY_CONTENT or SIZE_BY_LAYOUT)
+ int size_mode;
+ // need to calculate position and width
int resize;
// need redraw Pixmap
int redraw;
// each object can overwrite following function
void (*_draw_foreground)(void *obj, cairo_t *c);
- void (*_resize)(void *obj);
- void (*_add_child)(void *obj);
- int (*_remove_child)(void *obj);
+ // update area's content and update size (width/heith).
+ // return '1' if size changed, '0' otherwise.
+ int (*_resize)(void *obj);
+ // after pos/size changed, the rendering engine will call _on_change_layout(Area*)
+ int on_changed;
+ void (*_on_change_layout)(void *obj);
const char* (*_get_tooltip_text)(void *obj);
} Area;
+// on startup, initialize fixed pos/size
+void init_rendering(void *obj, int pos);
-
+void rendering(void *obj);
+void size_by_content (Area *a);
+void size_by_layout (Area *a, int pos, int level);
// draw background and foreground
void refresh (Area *a);
-
-void size (Area *a);
+
+// generic resize for SIZE_BY_LAYOUT objects
+int resize_by_layout(void *obj, int maximum_size);
// set 'redraw' on an area and childs
void set_redraw (Area *a);
+// hide/unhide area
+void hide(Area *a);
+void show(Area *a);
+
// draw pixmap
void draw (Area *a);
void draw_background (Area *a, cairo_t *c);