mirrors/sway
1
0
Fork 0
mirror of https://github.com/swaywm/sway.git synced 2025-12-15 08:56:30 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add text rendering support to wayland clients

Browse source
This commit is contained in:
Drew DeVault 2015-11-29 15:27:28 -05:00
parent 5a369b3132
commit 82d464bb90
5 changed files with 87 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

59
wayland/pango.c Normal file
View file

@ -0,0 +1,59 @@
#include <cairo/cairo.h>
#include <pango/pangocairo.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "client/window.h"
#include "client/buffer.h"
#include "log.h"
PangoLayout *get_pango_layout(struct window *window, const char *text) {
PangoLayout *layout = pango_cairo_create_layout(window->cairo);
pango_layout_set_text(layout, text, -1);
PangoFontDescription *desc = pango_font_description_from_string(window->font);
pango_layout_set_font_description(layout, desc);
pango_layout_set_single_paragraph_mode(layout, 1);
pango_font_description_free(desc);
return layout;
}
void get_text_size(struct window *window, int *width, int *height, const char *fmt, ...) {
char *buf = malloc(2048);
va_list args;
va_start(args, fmt);
if (vsnprintf(buf, 2048, fmt, args) >= 2048) {
strcpy(buf, "[buffer overflow]");
}
va_end(args);
PangoLayout *layout = get_pango_layout(window, buf);
pango_cairo_update_layout(window->cairo, layout);
pango_layout_get_pixel_size(layout, width, height);
g_object_unref(layout);
free(buf);
}
void pango_printf(struct window *window, const char *fmt, ...) {
char *buf = malloc(2048);
va_list args;
va_start(args, fmt);
if (vsnprintf(buf, 2048, fmt, args) >= 2048) {
strcpy(buf, "[buffer overflow]");
}
va_end(args);
PangoLayout *layout = get_pango_layout(window, buf);
pango_cairo_update_layout(window->cairo, layout);
pango_cairo_show_layout(window->cairo, layout);
g_object_unref(layout);
free(buf);
}

4
wayland/window.c
View file

@ -63,6 +63,7 @@ struct window *window_setup(struct registry *registry, uint32_t width, uint32_t
window->width = width;
window->height = height;
window->registry = registry;
window->font = "monospace 10";
window->surface = wl_compositor_create_surface(registry->compositor);
if (shell_surface) {
@ -74,6 +75,8 @@ struct window *window_setup(struct registry *registry, uint32_t width, uint32_t
wl_pointer_add_listener(registry->pointer, &pointer_listener, window);
}
get_next_buffer(window);
window->cursor.cursor_theme = wl_cursor_theme_load("default", 32, registry->shm); // TODO: let you customize this
window->cursor.cursor = wl_cursor_theme_get_cursor(window->cursor.cursor_theme, "left_ptr");
window->cursor.surface = wl_compositor_create_surface(registry->compositor);
@ -118,4 +121,5 @@ int window_render(struct window *window) {
}
void window_teardown(struct window *window) {
// TODO
}