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Fix GTK+ version in README, other minor fixes

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Minor fixes include a rewording of "user size" to "unscaled size": Cairo
has user units, (unscaled) device units and (scaled) device pixels.
This commit is contained in:
Jeremie Knuesel 2018-01-25 08:40:54 +01:00
parent 9752b8f03b
commit a7f42769c6
2 changed files with 14 additions and 14 deletions
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2
README
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@ -5,7 +5,7 @@ girara user interface library and several document libraries.
Requirements
------------
gtk3 (>= 3.6)
gtk3 (>= 3.10)
glib (>= 2.50)
girara (>= 0.2.8)
sqlite3 (optional, >= 3.5.9)

26
zathura/page-widget.c
View File

@ -413,17 +413,17 @@ zathura_page_widget_get_property(GObject* object, guint prop_id, GValue* value,
static zathura_device_factors_t
get_safe_device_factors(cairo_surface_t* surface)
{
zathura_device_factors_t factors;
cairo_surface_get_device_scale(surface, &factors.x, &factors.y);
zathura_device_factors_t factors;
cairo_surface_get_device_scale(surface, &factors.x, &factors.y);
if (fabs(factors.x) < DBL_EPSILON) {
factors.x = 1.0;
}
if (fabs(factors.y) < DBL_EPSILON) {
factors.y = 1.0;
}
if (fabs(factors.x) < DBL_EPSILON) {
factors.x = 1.0;
}
if (fabs(factors.y) < DBL_EPSILON) {
factors.y = 1.0;
}
return factors;
return factors;
}
#else
static zathura_device_factors_t
@ -656,12 +656,12 @@ draw_thumbnail_image(cairo_surface_t* surface, size_t max_size)
/* note: this always returns 1 and 1 if Cairo too old for device scale API */
zathura_device_factors_t device = get_safe_device_factors(surface);
const unsigned int user_width = width / device.x;
const unsigned int user_height = height / device.y;
const unsigned int unscaled_width = width / device.x;
const unsigned int unscaled_height = height / device.y;
/* create thumbnail surface, taking width and height as device sizes */
/* create thumbnail surface, taking width and height as _unscaled_ device units */
cairo_surface_t *thumbnail;
thumbnail = cairo_surface_create_similar(surface, CAIRO_CONTENT_COLOR, user_width, user_height);
thumbnail = cairo_surface_create_similar(surface, CAIRO_CONTENT_COLOR, unscaled_width, unscaled_height);
if (thumbnail == NULL) {
return NULL;
}