72 行
2.5 KiB
C
72 行
2.5 KiB
C
#ifndef RENDER_H_
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#define RENDER_H_
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#include "util.h"
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#include "shm.h"
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#include "user.h"
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#include "wlr-layer-shell-unstable-v1-protocol.h"
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#include "pango/pango-types.h"
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#include <pango/pango.h>
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#include <cairo.h>
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struct Font {
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PangoFontDescription *description;
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unsigned int height, approx_width;
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};
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/* The render pipeline, also handles click events by keeping track of each components bounds'. */
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struct Pipeline {
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struct List *callbacks; /* struct PipelineCallbacks* */
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int current /* The current callback we are on */,
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invalid;
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/* Colors */
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int background[4], foreground[4];
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PangoContext *context;
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struct Font *font;
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struct Shm *shm;
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struct wl_surface *surface;
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struct zwlr_layer_surface_v1 *layer_surface;
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};
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struct PipelineListener {
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void (*render)(struct Pipeline *pipeline, void *data, cairo_t *painter, int *x, int *y);
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int (*width)(struct Pipeline *pipeline, void *data, unsigned int future_widths);
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};
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struct PipelineCallback {
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const struct PipelineListener *listener;
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void *data;
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};
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/* Basic helper component, can be used if the only thing to be displayed is text. */
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struct BasicComponent {
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PangoLayout *layout;
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int width, height,
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x, y /* box start coordinates */,
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tx, ty /* text starts coordinates, tx is added to starting x coordinates. */;
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};
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struct BasicComponent *basic_component_create(PangoContext *context, PangoFontDescription *description);
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void basic_component_destroy(struct BasicComponent *component);
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int basic_component_is_clicked(struct BasicComponent *component, double x, double y);
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void basic_component_render(struct BasicComponent *component, struct Pipeline *pipeline,
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cairo_t *painter, int *x, int *y);
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int basic_component_text_width(struct BasicComponent *component);
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void pipeline_add(struct Pipeline *pipeline, const struct PipelineListener *listener, void *data);
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struct Pipeline *pipeline_create(void);
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void pipeline_destroy(struct Pipeline *pipeline);
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int pipeline_get_future_widths(struct Pipeline *pipeline);
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void pipeline_hide(struct Pipeline *pipeline);
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void pipeline_invalidate(struct Pipeline *pipeline);
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int pipeline_is_visible(struct Pipeline *pipeline);
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void pipeline_show(struct Pipeline *pipeline, struct wl_output *output);
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void pipeline_set_colorscheme(struct Pipeline* pipeline, const int **scheme);
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void pipeline_color_foreground(struct Pipeline* pipeline, cairo_t *painter);
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void pipeline_color_background(struct Pipeline* pipeline, cairo_t *painter);
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void set_color(cairo_t *painter, const int rgba[4]);
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#endif // RENDER_H_
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