mirror of
https://github.com/labwc/labwc.git
synced 2025-10-29 05:40:24 -04:00
7ad5200f2e
Made all header files to have LABWC_ prefix in include guard identifers. Converted from __LABWC_ in 35 include/ files. Converted from __LAB_ in 5 include/ files. Added LABWC prefix to 3 include/ files. Added include guards to 3 include/ files. The double underscores were removed since according to C standard those "are always reserved for any use".
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
#ifndef LABWC_SCALED_FONT_BUFFER_H
|
|
#define LABWC_SCALED_FONT_BUFFER_H
|
|
|
|
#include "common/font.h"
|
|
|
|
struct wlr_scene_tree;
|
|
struct wlr_scene_buffer;
|
|
struct scaled_scene_buffere;
|
|
|
|
struct scaled_font_buffer {
|
|
struct wlr_scene_buffer *scene_buffer;
|
|
int width; /* unscaled, read only */
|
|
int height; /* unscaled, read only */
|
|
|
|
/* Private */
|
|
char *text;
|
|
int max_width;
|
|
float color[4];
|
|
char *arrow;
|
|
struct font font;
|
|
struct scaled_scene_buffer *scaled_buffer;
|
|
};
|
|
|
|
/**
|
|
* Create an auto scaling font buffer, providing a wlr_scene_buffer node for
|
|
* display. It gets destroyed automatically when the backing scaled_scene_buffer
|
|
* is being destroyed which in turn happens automatically when the backing
|
|
* wlr_scene_buffer (or one of its parents) is being destroyed.
|
|
*
|
|
* To actually show some text, scaled_font_buffer_update() has to be called.
|
|
*
|
|
*/
|
|
struct scaled_font_buffer *scaled_font_buffer_create(struct wlr_scene_tree *parent);
|
|
|
|
/**
|
|
* Update an existing auto scaling font buffer.
|
|
*
|
|
* No steps are taken to detect if its actually required to render a new buffer.
|
|
* This should be done by the caller to prevent useless recreation of the same
|
|
* buffer in case nothing actually changed.
|
|
*
|
|
* Some basic checks could be something like
|
|
* - truncated = buffer->width == max_width
|
|
* - text_changed = strcmp(old_text, new_text)
|
|
* - font and color the same
|
|
*/
|
|
void scaled_font_buffer_update(struct scaled_font_buffer *self, const char *text,
|
|
int max_width, struct font *font, float *color, const char *arrow);
|
|
|
|
/**
|
|
* Update the max width of an existing auto scaling font buffer
|
|
* and force a new render.
|
|
*
|
|
* No steps are taken to detect if its actually required to render a new buffer.
|
|
*/
|
|
void scaled_font_buffer_set_max_width(struct scaled_font_buffer *self, int max_width);
|
|
|
|
#endif /* LABWC_SCALED_FONT_BUFFER_H */
|