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iconhelper: Rework to allow resizing of paintables

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GtkImage will now allow paintables to be rendered to the full image and
the image will be sized according to CSS rules for image sizing.
This commit is contained in:
Benjamin Otte 2018-02-27 01:55:03 +01:00
parent 3e50092869
commit 3427639b08
4 changed files with 98 additions and 28 deletions
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2
gtk/gtkcellrendererpixbuf.c
View File

@ -582,7 +582,7 @@ gtk_cell_renderer_pixbuf_snapshot (GtkCellRenderer *cell,
}
gtk_snapshot_offset (snapshot, pix_rect.x, pix_rect.y);
gtk_icon_helper_snapshot (&icon_helper, snapshot);
gtk_icon_helper_snapshot (&icon_helper, snapshot, pix_rect.width, pix_rect.height);
gtk_snapshot_offset (snapshot, - pix_rect.x, - pix_rect.y);
gtk_icon_helper_destroy (&icon_helper);

68
gtk/gtkiconhelper.c
View File

@ -385,6 +385,67 @@ gtk_icon_helper_ensure_paintable (GtkIconHelper *self)
self->texture_is_symbolic = symbolic;
}
void
gtk_icon_helper_measure (GtkIconHelper *self,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural)
{
switch (gtk_image_definition_get_storage_type (self->def))
{
case GTK_IMAGE_PAINTABLE:
{
double min_width, min_height, nat_width, nat_height;
int default_size = get_default_size (self);
gdk_paintable_compute_concrete_size (gtk_image_definition_get_paintable (self->def),
0, 0,
default_size, default_size,
&min_width, &min_height);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
gdk_paintable_compute_concrete_size (gtk_image_definition_get_paintable (self->def),
0,
for_size < 0 ? 0 : for_size,
default_size, default_size,
&nat_width, &nat_height);
*minimum = ceil (min_width);
*natural = ceil (nat_width);
}
else
{
gdk_paintable_compute_concrete_size (gtk_image_definition_get_paintable (self->def),
for_size < 0 ? 0 : for_size,
0,
default_size, default_size,
&nat_width, &nat_height);
*minimum = ceil (min_height);
*natural = ceil (nat_height);
}
}
break;
case GTK_IMAGE_TEXTURE:
case GTK_IMAGE_SURFACE:
case GTK_IMAGE_ICON_NAME:
case GTK_IMAGE_GICON:
case GTK_IMAGE_EMPTY:
default:
{
int width, height;
_gtk_icon_helper_get_size (self, &width, &height);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
*minimum = *natural = width;
else
*minimum = *natural = height;
}
break;
}
}
static void
get_size_for_paintable (GtkIconHelper *self,
GdkPaintable *paintable,
@ -617,10 +678,11 @@ _gtk_icon_helper_get_icon_name (GtkIconHelper *self)
void
gtk_icon_helper_snapshot (GtkIconHelper *self,
GtkSnapshot *snapshot)
GtkSnapshot *snapshot,
double width,
double height)
{
GtkCssStyle *style;
gint width, height;
style = gtk_css_node_get_style (self->node);
@ -628,8 +690,6 @@ gtk_icon_helper_snapshot (GtkIconHelper *self,
if (self->paintable == NULL)
return;
_gtk_icon_helper_get_size (self, &width, &height);
gtk_css_style_snapshot_icon_paintable (style,
snapshot,
self->paintable,

9
gtk/gtkiconhelperprivate.h
View File

@ -89,12 +89,19 @@ GdkPaintable *_gtk_icon_helper_peek_paintable (GtkIconHelper *self);
GtkImageDefinition *gtk_icon_helper_get_definition (GtkIconHelper *self);
const gchar *_gtk_icon_helper_get_icon_name (GtkIconHelper *self);
void gtk_icon_helper_measure (GtkIconHelper *self,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural);
void _gtk_icon_helper_get_size (GtkIconHelper *self,
gint *width_out,
gint *height_out);
void gtk_icon_helper_snapshot (GtkIconHelper *self,
GtkSnapshot *snapshot);
GtkSnapshot *snapshot,
double width,
double height);
gboolean _gtk_icon_helper_get_force_scale_pixbuf (GtkIconHelper *self);
void _gtk_icon_helper_set_force_scale_pixbuf (GtkIconHelper *self,

47
gtk/gtkimage.c
View File

@ -1293,21 +1293,27 @@ gtk_image_snapshot (GtkWidget *widget,
width = gtk_widget_get_width (widget);
height = gtk_widget_get_height (widget);
y = 0;
_gtk_icon_helper_get_size (&priv->icon_helper, &w, &h);
x = (width - w) / 2;
baseline = gtk_widget_get_allocated_baseline (widget);
if (baseline == -1)
y += floor(height - h) / 2;
if (_gtk_icon_helper_get_storage_type (&priv->icon_helper) == GTK_IMAGE_PAINTABLE)
{
gtk_icon_helper_snapshot (&priv->icon_helper, snapshot, width, height);
}
else
y += CLAMP (baseline - h * gtk_image_get_baseline_align (image), 0, height - h);
{
_gtk_icon_helper_get_size (&priv->icon_helper, &w, &h);
x = (width - w) / 2;
gtk_snapshot_offset (snapshot, x, y);
gtk_icon_helper_snapshot (&priv->icon_helper, snapshot);
gtk_snapshot_offset (snapshot, -x, -y);
baseline = gtk_widget_get_allocated_baseline (widget);
if (baseline == -1)
y = floor(height - h) / 2;
else
y = CLAMP (baseline - h * gtk_image_get_baseline_align (image), 0, height - h);
gtk_snapshot_offset (snapshot, x, y);
gtk_icon_helper_snapshot (&priv->icon_helper, snapshot, w, h);
gtk_snapshot_offset (snapshot, -x, -y);
}
}
static void
@ -1429,23 +1435,20 @@ gtk_image_measure (GtkWidget *widget,
int *natural_baseline)
{
GtkImagePrivate *priv = gtk_image_get_instance_private (GTK_IMAGE (widget));
gint width, height;
float baseline_align;
_gtk_icon_helper_get_size (&priv->icon_helper, &width, &height);
gtk_icon_helper_measure (&priv->icon_helper,
orientation,
for_size,
minimum, natural);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
*minimum = *natural = width;
}
else
if (orientation == GTK_ORIENTATION_VERTICAL)
{
baseline_align = gtk_image_get_baseline_align (GTK_IMAGE (widget));
*minimum = *natural = height;
if (minimum_baseline)
*minimum_baseline = height * baseline_align;
*minimum_baseline = *minimum * baseline_align;
if (natural_baseline)
*natural_baseline = height * baseline_align;
*natural_baseline = *natural * baseline_align;
}
}