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Dogcows Code - chaz/tint2/blob - src/util/area.h
a5d1434e856e818f14aa81aa1fea20216a810074
1 /**************************************************************************
2 * Copyright (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr)
4 * base class for all graphical objects (panel, taskbar, task, systray, clock, ...).
5 * Area is at the begining of each object (&object == &area).
7 * Area manage the background and border drawing, size and padding.
8 * Each Area has one Pixmap (pix).
10 * Area manage the tree of all objects. Parent object drawn before child object.
11 * panel -> taskbars -> tasks
15 * draw_foreground(obj) and resize(obj) are virtual function.
17 **************************************************************************/
25 #include <cairo-xlib.h>
50 // way to calculate the size
51 // SIZE_BY_LAYOUT objects : taskbar and task
52 // SIZE_BY_CONTENT objects : clock, battery, launcher, systray
53 enum { SIZE_BY_LAYOUT
, SIZE_BY_CONTENT
};
56 // coordinate relative to panel window
58 // width and height including border
63 // list of child : Area object
66 // object visible on screen.
67 // An object (like systray) could be enabled but hidden (because no tray icon).
69 // way to calculate the size (SIZE_BY_CONTENT or SIZE_BY_LAYOUT)
71 // need to calculate position and width
75 // paddingxlr = horizontal padding left/right
76 // paddingx = horizontal padding between childs
77 int paddingxlr
, paddingx
, paddingy
;
83 // each object can overwrite following function
84 void (*_draw_foreground
)(void *obj
, cairo_t
*c
);
85 // calculate size. return '1' if size changed, '0' otherwise.
86 int (*_resize
)(void *obj
);
87 void (*_add_child
)(void *obj
);
88 int (*_remove_child
)(void *obj
);
89 const char* (*_get_tooltip_text
)(void *obj
);
92 // on startup, initialize fixed pos/size
93 void init_rendering(void *obj
, int pos
);
95 void rendering(void *obj
);
96 void size_by_content (Area
*a
);
97 void size_by_layout (Area
*a
, int pos
, int level
);
98 // draw background and foreground
99 void refresh (Area
*a
);
101 // generic resize for SIZE_BY_LAYOUT objects
102 int resize_by_layout(void *obj
);
104 // set 'redraw' on an area and childs
105 void set_redraw (Area
*a
);
109 void draw_background (Area
*a
, cairo_t
*c
);
111 void remove_area (Area
*a
);
112 void add_area (Area
*a
);
113 void free_area (Area
*a
);
115 // draw rounded rectangle
116 void draw_rect(cairo_t
*c
, double x
, double y
, double w
, double h
, double r
);
118 // clear pixmap with transparent color
119 void clear_pixmap(Pixmap p
, int x
, int y
, int w
, int h
);
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