static int get_glyph_surface(bitmap_backend_data_t *data, glyph_id_t glyph_id,
surface_t **result)
{
if (glyph_id >= data->glyph_count)
return ENOENT;
if (data->glyph_cache[glyph_id].surface != NULL) {
*result = data->glyph_cache[glyph_id].surface;
return EOK;
}
surface_t *raw_surface;
int rc = data->decoder->load_glyph_surface(data->decoder_data, glyph_id,
&raw_surface);
if (rc != EOK)
return rc;
sysarg_t w;
sysarg_t h;
surface_get_resolution(raw_surface, &w, &h);
if (!data->scale) {
*result = raw_surface;
return EOK;
}
source_t source;
source_init(&source);
source_set_texture(&source, raw_surface, PIXELMAP_EXTEND_TRANSPARENT_BLACK);
transform_t transform;
transform_identity(&transform);
transform_translate(&transform, 0.5, 0.5);
transform_scale(&transform, data->scale_ratio, data->scale_ratio);
source_set_transform(&source, transform);
surface_coord_t scaled_width = (data->scale_ratio * ((double) w) + 0.5);
surface_coord_t scaled_height = (data->scale_ratio * ((double) h) + 0.5);
surface_t *scaled_surface = surface_create(scaled_width, scaled_height,
NULL, 0);
if (!scaled_surface) {
surface_destroy(raw_surface);
return ENOMEM;
}
drawctx_t context;
drawctx_init(&context, scaled_surface);
drawctx_set_source(&context, &source);
drawctx_transfer(&context, 0, 0, scaled_width, scaled_height);
surface_destroy(raw_surface);
data->glyph_cache[glyph_id].surface = scaled_surface;
*result = scaled_surface;
return EOK;
}
static void paint_internal(widget_t *w)
{
button_t *btn = (button_t *) w;
surface_t *surface = window_claim(btn->widget.window);
if (!surface) {
window_yield(btn->widget.window);
}
drawctx_t drawctx;
drawctx_init(&drawctx, surface);
drawctx_set_source(&drawctx, &btn->foreground);
drawctx_transfer(&drawctx, w->hpos, w->vpos, w->width, w->height);
if (w->width >= 6 && w->height >= 6) {
drawctx_set_source(&drawctx, &btn->background);
drawctx_transfer(&drawctx,
w->hpos + 3, w->vpos + 3, w->width - 6, w->height - 6);
}
sysarg_t cpt_width;
sysarg_t cpt_height;
font_get_box(&btn->font, btn->caption, &cpt_width, &cpt_height);
if (w->width >= cpt_width && w->height >= cpt_height) {
drawctx_set_source(&drawctx, &btn->foreground);
drawctx_set_font(&drawctx, &btn->font);
sysarg_t x = ((w->width - cpt_width) / 2) + w->hpos;
sysarg_t y = ((w->height - cpt_height) / 2) + w->vpos;
if (btn->caption) {
drawctx_print(&drawctx, btn->caption, x, y);
}
}
window_yield(btn->widget.window);
}
