301aff0f10
git-svn-id: http://tint2.googlecode.com/svn/trunk@569 121b4492-b84c-0410-8b4c-0d4edfb3f3cc
127 lines
3.1 KiB
C
127 lines
3.1 KiB
C
/**************************************************************************
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* Copyright (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr)
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*
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* base class for all graphical objects (panel, taskbar, task, systray, clock, ...).
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* Area is at the begining of each object (&object == &area).
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*
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* Area manage the background and border drawing, size and padding.
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* Each Area has one Pixmap (pix).
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*
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* Area manage the tree of all objects. Parent object drawn before child object.
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* panel -> taskbars -> tasks
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* -> systray -> icons
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* -> clock
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*
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* draw_foreground(obj) and resize(obj) are virtual function.
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*
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**************************************************************************/
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#ifndef AREA_H
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#define AREA_H
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#include <glib.h>
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#include <X11/Xlib.h>
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#include <cairo.h>
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#include <cairo-xlib.h>
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typedef struct
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{
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double color[3];
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double alpha;
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int width;
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int rounded;
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} Border;
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typedef struct
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{
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double color[3];
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double alpha;
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} Color;
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typedef struct
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{
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Color back;
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Border border;
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} Background;
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// way to calculate the size
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// SIZE_BY_LAYOUT objects : taskbar and task
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// SIZE_BY_CONTENT objects : clock, battery, launcher, systray
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enum { SIZE_BY_LAYOUT, SIZE_BY_CONTENT };
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typedef struct {
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// coordinate relative to panel window
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int posx, posy;
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// width and height including border
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int width, height;
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Pixmap pix;
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Background *bg;
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// list of child : Area object
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GSList *list;
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// object visible on screen.
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// An object (like systray) could be enabled but hidden (because no tray icon).
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int on_screen;
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// way to calculate the size (SIZE_BY_CONTENT or SIZE_BY_LAYOUT)
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int size_mode;
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// need to calculate position and width
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int resize;
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// need redraw Pixmap
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int redraw;
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// paddingxlr = horizontal padding left/right
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// paddingx = horizontal padding between childs
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int paddingxlr, paddingx, paddingy;
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// parent Area
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void *parent;
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// panel
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void *panel;
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// each object can overwrite following function
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void (*_draw_foreground)(void *obj, cairo_t *c);
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// update area's content and update size (width/heith).
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// return '1' if size changed, '0' otherwise.
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int (*_resize)(void *obj);
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// after pos/size changed, the rendering engine will call _on_change_layout(Area*)
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int on_changed;
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void (*_on_change_layout)(void *obj);
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const char* (*_get_tooltip_text)(void *obj);
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} Area;
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// on startup, initialize fixed pos/size
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void init_rendering(void *obj, int pos);
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void rendering(void *obj);
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void size_by_content (Area *a);
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void size_by_layout (Area *a, int pos, int level);
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// draw background and foreground
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void refresh (Area *a);
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// generic resize for SIZE_BY_LAYOUT objects
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int resize_by_layout(void *obj, int maximum_size);
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// set 'redraw' on an area and childs
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void set_redraw (Area *a);
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// hide/unhide area
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void hide(Area *a);
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void show(Area *a);
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// draw pixmap
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void draw (Area *a);
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void draw_background (Area *a, cairo_t *c);
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void remove_area (Area *a);
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void add_area (Area *a);
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void free_area (Area *a);
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// draw rounded rectangle
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void draw_rect(cairo_t *c, double x, double y, double w, double h, double r);
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// clear pixmap with transparent color
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void clear_pixmap(Pixmap p, int x, int y, int w, int h);
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#endif
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