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Merge remote-tracking branch 'knuesel/feature/links-font' into develop

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Sebastian Ramacher 2018-01-26 20:20:13 +01:00
commit 0c7ed64c0a
1 changed files with 89 additions and 11 deletions
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100
zathura/page-widget.c
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@ -297,12 +297,90 @@ zathura_page_widget_finalize(GObject* object)
G_OBJECT_CLASS(zathura_page_widget_parent_class)->finalize(object);
}
static void
set_font_from_property(cairo_t* cairo, zathura_t* zathura, cairo_font_weight_t weight)
{
if (zathura == NULL) {
return;
}
/* get user font description */
char* font = NULL;
girara_setting_get(zathura->ui.session, "font", &font);
if (font == NULL) {
return;
}
/* use pango to extract font family and size */
PangoFontDescription* descr = pango_font_description_from_string(font);
const char* family = pango_font_description_get_family(descr);
/* get font size: can be points or absolute.
* absolute units: value = 10*PANGO_SCALE = 10 (unscaled) device units (logical pixels)
* point units: value = 10*PANGO_SCALE = 10 points = 10*(font dpi config / 72) device units */
double size = pango_font_description_get_size(descr) / PANGO_SCALE;
/* convert point size to device units */
if (!pango_font_description_get_size_is_absolute(descr)) {
double font_dpi = 96.0;
if (zathura->ui.session != NULL) {
if (gtk_widget_has_screen(zathura->ui.session->gtk.view)) {
GdkScreen* screen = gtk_widget_get_screen(zathura->ui.session->gtk.view);
font_dpi = gdk_screen_get_resolution(screen);
}
}
size = size * font_dpi / 72;
}
cairo_select_font_face(cairo, family, CAIRO_FONT_SLANT_NORMAL, weight);
cairo_set_font_size(cairo, size);
pango_font_description_free(descr);
g_free(font);
}
static cairo_text_extents_t
get_text_extents(const char* string, zathura_t* zathura, cairo_font_weight_t weight) {
cairo_text_extents_t text = {0,};
if (zathura == NULL) {
return text;
}
/* make dummy surface to satisfy API requirements */
cairo_surface_t* surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24, 0, 0);
if (cairo_surface_status(surface) != CAIRO_STATUS_SUCCESS) {
return text;
}
cairo_t* cairo = cairo_create(surface);
if (cairo_status(cairo) != CAIRO_STATUS_SUCCESS) {
cairo_surface_destroy(surface);
return text;
}
set_font_from_property(cairo, zathura, weight);
cairo_text_extents(cairo, string, &text);
/* add some margin (for some reason the reported extents can be a bit short) */
text.width += 6;
text.height += 2;
cairo_destroy(cairo);
cairo_surface_destroy(surface);
return text;
}
static void
zathura_page_widget_set_property(GObject* object, guint prop_id, const GValue* value, GParamSpec* pspec)
{
ZathuraPage* pageview = ZATHURA_PAGE(object);
zathura_page_widget_private_t* priv = ZATHURA_PAGE_GET_PRIVATE(pageview);
cairo_text_extents_t text;
switch (prop_id) {
case PROP_PAGE:
priv->page = g_value_get_pointer(value);
@ -320,10 +398,19 @@ zathura_page_widget_set_property(GObject* object, guint prop_id, const GValue* v
}
if (priv->links.retrieved == TRUE && priv->links.list != NULL) {
/* get size of text that should be large enough for every link hint */
text = get_text_extents("888", priv->zathura, CAIRO_FONT_WEIGHT_BOLD);
GIRARA_LIST_FOREACH(priv->links.list, zathura_link_t*, iter, link)
if (link != NULL) {
/* redraw link area */
zathura_rectangle_t rectangle = recalc_rectangle(priv->page, zathura_link_get_position(link));
redraw_rect(pageview, &rectangle);
/* also redraw area for link hint */
rectangle.x2 = rectangle.x1 + text.width;
rectangle.y1 = rectangle.y2 - text.height;
redraw_rect(pageview, &rectangle);
}
GIRARA_LIST_FOREACH_END(priv->links.list, zathura_link_t*, iter, link);
}
@ -494,20 +581,12 @@ zathura_page_widget_draw(GtkWidget* widget, cairo_t* cairo)
return FALSE;
}
/* draw rectangles */
char* font = NULL;
girara_setting_get(priv->zathura->ui.session, "font", &font);
/* draw links */
set_font_from_property(cairo, priv->zathura, CAIRO_FONT_WEIGHT_BOLD);
float transparency = 0.5;
girara_setting_get(priv->zathura->ui.session, "highlight-transparency", &transparency);
if (font != NULL) {
cairo_select_font_face(cairo, font, CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_BOLD);
}
g_free(font);
/* draw links */
if (priv->links.draw == true && priv->links.n != 0) {
unsigned int link_counter = 0;
GIRARA_LIST_FOREACH(priv->links.list, zathura_link_t*, iter, link)
@ -523,7 +602,6 @@ zathura_page_widget_draw(GtkWidget* widget, cairo_t* cairo)
/* draw text */
cairo_set_source_rgba(cairo, 0, 0, 0, 1);
cairo_set_font_size(cairo, 10);
cairo_move_to(cairo, rectangle.x1 + 1, rectangle.y2 - 1);
char* link_number = g_strdup_printf("%i", priv->links.offset + ++link_counter);
cairo_show_text(cairo, link_number);