/**************************************************************************
* Copyright (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr)
-*
+*
* base class for all graphical objects (panel, taskbar, task, systray, clock, ...).
-* Area is at the begining of each graphical object so &object == &area.
-*
+* Area is at the begining of each object (&object == &area).
+*
* Area manage the background and border drawing, size and padding.
-* Area also manage the tree of visible objects
+* Each Area has one Pixmap (pix).
+*
+* Area manage the tree of all objects. Parent object drawn before child object.
* panel -> taskbars -> tasks
* -> systray -> icons
* -> clock
-*
-* draw_foreground(obj) and draw(obj) are virtual function.
-*
-* resize_width(obj, width) = 0 : fonction virtuelle à redéfinir
-* recalcule la largeur de l'objet (car la hauteur est fixe)
-* - taille systray calculée à partir de la liste des icones
-* - taille clock calculée à partir de l'heure
-* - taille d'une tache calculée à partir de la taskbar (ajout, suppression, taille)
-* - taille d'une taskbar calculée à partir de la taille du panel et des autres objets
-*
-* voir resize_taskbar(), resize_clock() et resize_tasks()
-* variable widthChanged ou bien emission d'un signal ???
-* voir config(obj) configure un objet (définie les positions verticales)
+*
+* draw_foreground(obj) and resize(obj) are virtual function.
*
**************************************************************************/
#ifndef AREA_H
#define AREA_H
+#include <glib.h>
#include <X11/Xlib.h>
-#include <pango/pangocairo.h>
-
-#include "common.h"
-
+#include <cairo.h>
+#include <cairo-xlib.h>
typedef struct
{
- double color[3];
- double alpha;
- int width;
- int rounded;
+ double color[3];
+ double alpha;
+ int width;
+ int rounded;
} Border;
typedef struct
{
- double color[3];
- double alpha;
+ double color[3];
+ double alpha;
} Color;
+typedef struct
+{
+ Color back;
+ Border border;
+} 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 {
- // TODO: isoler 'draw' de 'refresh'
- // TODO: isoler les données locales des données communes aux freres
- // absolute coordinate in panel
- int posx, posy;
- int width, height;
- Pixmap pmap;
-
- // list of child : Area object
- GSList *list;
-
- // need redraw Pixmap
- int redraw;
- int paddingx, paddingy;
- // parent Area
- void *parent;
-
- Color back;
- Border border;
-
- // each object can overwrite following function
- void (*draw)(void *obj);
- void (*draw_foreground)(void *obj, cairo_t *c);
- void (*add_child)(void *obj);
- int (*remove_child)(void *obj);
+ // coordinate relative to panel window
+ int posx, posy;
+ // width and height including border
+ int width, height;
+ Pixmap pix;
+ Background *bg;
+
+ // 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;
+ // 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;
+ // paddingxlr = horizontal padding left/right
+ // paddingx = horizontal padding between childs
+ int paddingxlr, paddingx, paddingy;
+ // parent Area
+ void *parent;
+ // panel
+ void *panel;
+
+ // each object can overwrite following function
+ void (*_draw_foreground)(void *obj, cairo_t *c);
+ // 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);
+
+// generic resize for SIZE_BY_LAYOUT objects
+int resize_by_layout(void *obj);
// 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);
void add_area (Area *a);
void free_area (Area *a);
+// draw rounded rectangle
+void draw_rect(cairo_t *c, double x, double y, double w, double h, double r);
+
+// clear pixmap with transparent color
+void clear_pixmap(Pixmap p, int x, int y, int w, int h);
#endif