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![Marius Vlad](/assets/img/avatar_default.png)
Rather than creating a new PangoContext each time the menu redraw handler is triggered re-use it if one was created previously. All toytoolkit clients do create a layout (and implicitly a PangoContext) but only those that have menu redraw handler installed will create a new layout for each redraw of the menu, effectively creating a new PangoContext each time. Reported-by: Pekka Paalanen <pekka.paalanen@collabora.com> Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
247 lines
6.5 KiB
C
247 lines
6.5 KiB
C
/*
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* Copyright © 2008 Kristian Høgsberg
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _CAIRO_UTIL_H
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#define _CAIRO_UTIL_H
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#include <stdint.h>
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#include <cairo.h>
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#ifdef HAVE_PANGO
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#include <pango/pangocairo.h>
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#endif
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#include <wayland-client.h>
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#include <wayland-util.h>
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void
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surface_flush_device(cairo_surface_t *surface);
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void
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render_shadow(cairo_t *cr, cairo_surface_t *surface,
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int x, int y, int width, int height, int margin, int top_margin);
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void
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tile_source(cairo_t *cr, cairo_surface_t *surface,
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int x, int y, int width, int height, int margin, int top_margin);
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void
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rounded_rect(cairo_t *cr, int x0, int y0, int x1, int y1, int radius);
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cairo_surface_t *
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load_cairo_surface(const char *filename);
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struct theme {
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cairo_surface_t *active_frame;
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cairo_surface_t *inactive_frame;
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cairo_surface_t *shadow;
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int frame_radius;
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int margin;
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int width;
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int titlebar_height;
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#ifdef HAVE_PANGO
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PangoContext *pango_context;
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#endif
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};
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struct theme *
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theme_create(void);
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void
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theme_destroy(struct theme *t);
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enum {
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THEME_FRAME_ACTIVE = 1,
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THEME_FRAME_MAXIMIZED = 2,
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THEME_FRAME_NO_TITLE = 4
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};
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void
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theme_set_background_source(struct theme *t, cairo_t *cr, uint32_t flags);
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void
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theme_render_frame(struct theme *t,
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cairo_t *cr, int width, int height,
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const char *title, cairo_rectangle_int_t *title_rect,
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struct wl_list *buttons, uint32_t flags);
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enum theme_location {
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THEME_LOCATION_INTERIOR = 0,
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THEME_LOCATION_RESIZING_TOP = 1,
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THEME_LOCATION_RESIZING_BOTTOM = 2,
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THEME_LOCATION_RESIZING_LEFT = 4,
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THEME_LOCATION_RESIZING_TOP_LEFT = 5,
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THEME_LOCATION_RESIZING_BOTTOM_LEFT = 6,
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THEME_LOCATION_RESIZING_RIGHT = 8,
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THEME_LOCATION_RESIZING_TOP_RIGHT = 9,
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THEME_LOCATION_RESIZING_BOTTOM_RIGHT = 10,
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THEME_LOCATION_RESIZING_MASK = 15,
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THEME_LOCATION_EXTERIOR = 16,
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THEME_LOCATION_TITLEBAR = 17,
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THEME_LOCATION_CLIENT_AREA = 18,
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};
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enum theme_location
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theme_get_location(struct theme *t, int x, int y, int width, int height, int flags);
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struct frame;
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enum frame_status {
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FRAME_STATUS_NONE = 0,
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FRAME_STATUS_REPAINT = 0x1,
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FRAME_STATUS_MINIMIZE = 0x2,
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FRAME_STATUS_MAXIMIZE = 0x4,
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FRAME_STATUS_CLOSE = 0x8,
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FRAME_STATUS_MENU = 0x10,
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FRAME_STATUS_RESIZE = 0x20,
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FRAME_STATUS_MOVE = 0x40,
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FRAME_STATUS_ALL = 0x7f
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};
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enum frame_flag {
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FRAME_FLAG_ACTIVE = 0x1,
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FRAME_FLAG_MAXIMIZED = 0x2
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};
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enum {
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FRAME_BUTTON_NONE = 0,
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FRAME_BUTTON_CLOSE = 0x1,
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FRAME_BUTTON_MAXIMIZE = 0x2,
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FRAME_BUTTON_MINIMIZE = 0x4,
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FRAME_BUTTON_ALL = 0x7
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};
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struct frame *
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frame_create(struct theme *t, int32_t width, int32_t height, uint32_t buttons,
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const char *title, cairo_surface_t *icon);
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void
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frame_destroy(struct frame *frame);
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/* May set FRAME_STATUS_REPAINT */
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int
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frame_set_title(struct frame *frame, const char *title);
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/* May set FRAME_STATUS_REPAINT */
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void
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frame_set_icon(struct frame *frame, cairo_surface_t *icon);
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/* May set FRAME_STATUS_REPAINT */
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void
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frame_set_flag(struct frame *frame, enum frame_flag flag);
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/* May set FRAME_STATUS_REPAINT */
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void
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frame_unset_flag(struct frame *frame, enum frame_flag flag);
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/* May set FRAME_STATUS_REPAINT */
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void
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frame_resize(struct frame *frame, int32_t width, int32_t height);
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/* May set FRAME_STATUS_REPAINT */
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void
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frame_resize_inside(struct frame *frame, int32_t width, int32_t height);
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int32_t
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frame_width(struct frame *frame);
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int32_t
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frame_height(struct frame *frame);
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void
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frame_decoration_sizes(struct frame *frame, int32_t *top, int32_t *bottom,
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int32_t *left, int32_t *right);
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void
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frame_interior(struct frame *frame, int32_t *x, int32_t *y,
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int32_t *width, int32_t *height);
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void
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frame_input_rect(struct frame *frame, int32_t *x, int32_t *y,
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int32_t *width, int32_t *height);
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void
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frame_opaque_rect(struct frame *frame, int32_t *x, int32_t *y,
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int32_t *width, int32_t *height);
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int
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frame_get_shadow_margin(struct frame *frame);
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uint32_t
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frame_status(struct frame *frame);
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void
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frame_status_clear(struct frame *frame, enum frame_status status);
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/* May set FRAME_STATUS_REPAINT */
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enum theme_location
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frame_pointer_enter(struct frame *frame, void *pointer, int x, int y);
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/* May set FRAME_STATUS_REPAINT */
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enum theme_location
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frame_pointer_motion(struct frame *frame, void *pointer, int x, int y);
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/* May set FRAME_STATUS_REPAINT */
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void
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frame_pointer_leave(struct frame *frame, void *pointer);
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/* Call to indicate that a button has been pressed/released. The return
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* value for a button release will be the same as for the corresponding
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* press. This allows you to more easily track grabs. If you want the
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* actual location, simply keep the location from the last
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* frame_pointer_motion call.
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*
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* May set:
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* FRAME_STATUS_MINIMIZE
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* FRAME_STATUS_MAXIMIZE
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* FRAME_STATUS_CLOSE
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* FRAME_STATUS_MENU
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* FRAME_STATUS_RESIZE
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* FRAME_STATUS_MOVE
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*/
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enum theme_location
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frame_pointer_button(struct frame *frame, void *pointer,
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uint32_t button, enum wl_pointer_button_state state);
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enum theme_location
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frame_touch_down(struct frame *frame, void *data, int32_t id, int x, int y);
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void
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frame_touch_up(struct frame *frame, void *data, int32_t id);
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enum theme_location
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frame_double_click(struct frame *frame, void *pointer,
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uint32_t button, enum wl_pointer_button_state state);
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void
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frame_double_touch_down(struct frame *frame, void *data, int32_t id,
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int x, int y);
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void
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frame_double_touch_up(struct frame *frame, void *data, int32_t id);
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void
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frame_repaint(struct frame *frame, cairo_t *cr);
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void
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cleanup_after_cairo(void);
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#endif
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