113 lines
3.6 KiB
C
113 lines
3.6 KiB
C
#ifndef BUTTON_H
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#define BUTTON_H
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#include <sys/time.h>
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#include <pango/pangocairo.h>
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#include "area.h"
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#include "common.h"
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#include "timer.h"
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// Architecture:
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// Panel panel_config contains an array of Button, each storing all config options and all the state variables.
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// Only these run commands.
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//
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// Tint2 maintains an array of Panels, one for each monitor. Each stores an array of Button which was initially copied
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// from panel_config. Each works as a frontend to the corresponding Button in panel_config as backend, using the
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// backend's config and state variables.
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typedef struct ButtonBackend {
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// Config:
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char *icon_name;
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char *text;
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char *tooltip;
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gboolean centered;
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int max_icon_size;
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gboolean has_font;
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PangoFontDescription *font_desc;
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Color font_color;
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char *lclick_command;
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char *mclick_command;
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char *rclick_command;
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char *uwheel_command;
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char *dwheel_command;
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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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Background *bg;
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// List of Button which are frontends for this backend, one for each panel
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GList *instances;
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} ButtonBackend;
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typedef struct ButtonFrontend {
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// Frontend state:
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Imlib_Image icon;
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Imlib_Image icon_hover;
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Imlib_Image icon_pressed;
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int icon_load_size;
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int iconx;
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int icony;
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int iconw;
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int iconh;
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int textx;
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int texty;
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int textw;
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int texth;
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} ButtonFrontend;
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typedef struct Button {
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Area area;
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// All elements have the backend pointer set. However only backend elements have ownership.
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ButtonBackend *backend;
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// Set only for frontend Button items.
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ButtonFrontend *frontend;
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} Button;
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// Called before the config is read and panel_config/panels are created.
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// Afterwards, the config parsing code creates the array of Button in panel_config and populates the configuration fields
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// in the backend.
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// Probably does nothing.
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void default_button();
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// Creates a new Button item with only the backend field set. The state is NOT initialized. The config is initialized to
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// the default values.
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// This will be used by the config code to populate its backedn config fields.
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Button *create_button();
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void destroy_button(void *obj);
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// Called after the config is read and panel_config is populated, but before panels are created.
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// Initializes the state of the backend items.
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// panel_config.panel_items is used to determine which backend items are enabled. The others should be destroyed and
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// removed from panel_config.button_list.
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void init_button();
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// Called after each on-screen panel is created, with a pointer to the panel.
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// Initializes the state of the frontend items. Also adds a pointer to it in backend->instances.
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// At this point the Area has not been added yet to the GUI tree, but it will be added right away.
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void init_button_panel(void *panel);
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// Called just before the panels are destroyed. Afterwards, tint2 exits or restarts and reads the config again.
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// Releases all frontends and then all the backends.
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// The frontend items are not freed by this function, only their members. The items are Areas which are freed in the
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// GUI element tree cleanup function (remove_area).
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void cleanup_button();
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// Called on draw, obj = pointer to the front-end Button item.
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void draw_button(void *obj, cairo_t *c);
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// Called on resize, obj = pointer to the front-end Button item.
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// Returns 1 if the new size is different than the previous size.
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gboolean resize_button(void *obj);
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// Called on mouse click event.
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void button_action(void *obj, int button, int x, int y);
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void button_default_font_changed();
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void button_default_icon_theme_changed();
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void button_reload_icon(Button *button);
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#endif // BUTTON_H
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