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/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2016 Alberts Muktupāvels
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef META_THEME_H
#define META_THEME_H
#include <gtk/gtk.h>
#include <libmetacity/meta-button-enums.h>
#include <libmetacity/meta-button-layout.h>
#include <libmetacity/meta-frame-borders.h>
#include <libmetacity/meta-frame-enums.h>
#include <libmetacity/meta-frame-style.h>
G_BEGIN_DECLS
typedef struct _MetaButtonSpace MetaButtonSpace;
typedef struct _MetaFrameGeometry MetaFrameGeometry;
#define META_TYPE_THEME meta_theme_get_type ()
G_DECLARE_FINAL_TYPE (MetaTheme, meta_theme, META, THEME, GObject)
/**
* META_THEME_ERROR:
*
* Domain for #MetaThemeError errors.
*/
#define META_THEME_ERROR (meta_theme_error_quark ())
/**
* MetaThemeError:
* @META_THEME_ERROR_TOO_OLD:
* @META_THEME_ERROR_FRAME_GEOMETRY:
* @META_THEME_ERROR_BAD_CHARACTER:
* @META_THEME_ERROR_BAD_PARENS:
* @META_THEME_ERROR_UNKNOWN_VARIABLE:
* @META_THEME_ERROR_DIVIDE_BY_ZERO:
* @META_THEME_ERROR_MOD_ON_FLOAT:
* @META_THEME_ERROR_FAILED:
*
* Error codes for %META_THEME_ERROR.
*/
typedef enum
{
META_THEME_ERROR_TOO_OLD,
META_THEME_ERROR_FRAME_GEOMETRY,
META_THEME_ERROR_BAD_CHARACTER,
META_THEME_ERROR_BAD_PARENS,
META_THEME_ERROR_UNKNOWN_VARIABLE,
META_THEME_ERROR_DIVIDE_BY_ZERO,
META_THEME_ERROR_MOD_ON_FLOAT,
META_THEME_ERROR_FAILED
} MetaThemeError;
/**
* MetaThemeType:
* @META_THEME_TYPE_GTK:
* @META_THEME_TYPE_METACITY:
*
* Theme types.
*/
typedef enum
{
META_THEME_TYPE_GTK,
META_THEME_TYPE_METACITY,
} MetaThemeType;
/**
* The computed size of a button (really just a way of tying its
* visible and clickable areas together).
* The reason for two different rectangles here is Fitts' law & maximized
* windows; see bug #97703 for more details.
*/
struct _MetaButtonSpace
{
/** The screen area where the button's image is drawn */
GdkRectangle visible;
/** The screen area where the button can be activated by clicking */
GdkRectangle clickable;
};
/**
* Calculated actual geometry of the frame
*/
struct _MetaFrameGeometry
{
MetaFrameBorders borders;
int width;
int height;
GdkRectangle title_rect;
/* used for a memset hack */
#define ADDRESS_OF_BUTTON_RECTS(fgeom) (((char*)(fgeom)) + G_STRUCT_OFFSET (MetaFrameGeometry, close_rect))
#define LENGTH_OF_BUTTON_RECTS (G_STRUCT_OFFSET (MetaFrameGeometry, right_single_background) + sizeof (GdkRectangle) - G_STRUCT_OFFSET (MetaFrameGeometry, close_rect))
/* The button rects (if changed adjust memset hack) */
MetaButtonSpace close_rect;
MetaButtonSpace max_rect;
MetaButtonSpace min_rect;
MetaButtonSpace menu_rect;
MetaButtonSpace appmenu_rect;
MetaButtonSpace shade_rect;
MetaButtonSpace above_rect;
MetaButtonSpace stick_rect;
MetaButtonSpace unshade_rect;
MetaButtonSpace unabove_rect;
MetaButtonSpace unstick_rect;
#define MAX_MIDDLE_BACKGROUNDS (META_BUTTON_FUNCTION_LAST - 2)
GdkRectangle left_left_background;
GdkRectangle left_middle_backgrounds[MAX_MIDDLE_BACKGROUNDS];
GdkRectangle left_right_background;
GdkRectangle left_single_background;
GdkRectangle right_left_background;
GdkRectangle right_middle_backgrounds[MAX_MIDDLE_BACKGROUNDS];
GdkRectangle right_right_background;
GdkRectangle right_single_background;
/* End of button rects (if changed adjust memset hack) */
/* Saved button layout */
MetaButtonLayout button_layout;
int n_left_buttons;
int n_right_buttons;
/* Round corners */
guint top_left_corner_rounded_radius;
guint top_right_corner_rounded_radius;
guint bottom_left_corner_rounded_radius;
guint bottom_right_corner_rounded_radius;
};
GQuark meta_theme_error_quark (void);
MetaTheme *meta_theme_new (MetaThemeType type);
gboolean meta_theme_load (MetaTheme *theme,
const gchar *theme_name,
GError **error);
void meta_theme_invalidate (MetaTheme *theme);
void meta_theme_set_composited (MetaTheme *theme,
gboolean composited);
void meta_theme_set_titlebar_font (MetaTheme *theme,
const PangoFontDescription *titlebar_font);
gchar *meta_theme_get_name (MetaTheme *theme);
MetaFrameStyle *meta_theme_get_frame_style (MetaTheme *theme,
MetaFrameType type,
MetaFrameFlags flags);
PangoFontDescription *meta_theme_create_font_desc (MetaTheme *theme,
const gchar *variant);
gint meta_pango_font_desc_get_text_height (const PangoFontDescription *font_desc,
PangoContext *context);
MetaFrameType meta_frame_type_from_string (const gchar *str);
gdouble meta_theme_get_title_scale (MetaTheme *theme,
MetaFrameType type,
MetaFrameFlags flags);
void meta_theme_get_frame_borders (MetaTheme *theme,
const gchar *variant,
MetaFrameType type,
gint text_height,
MetaFrameFlags flags,
MetaFrameBorders *borders);
void meta_theme_calc_geometry (MetaTheme *theme,
const gchar *variant,
MetaFrameType type,
gint text_height,
MetaFrameFlags flags,
gint client_width,
gint client_height,
const MetaButtonLayout *button_layout,
MetaFrameGeometry *fgeom);
void meta_theme_draw_frame (MetaTheme *theme,
const gchar *variant,
cairo_t *cr,
MetaFrameType type,
MetaFrameFlags flags,
gint client_width,
gint client_height,
PangoLayout *title_layout,
int text_height,
const MetaButtonLayout *button_layout,
MetaButtonState button_states[META_BUTTON_TYPE_LAST],
GdkPixbuf *mini_icon,
GdkPixbuf *icon);
G_END_DECLS
#endif
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