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gadget: Warn if clip is not set

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This leads to hard-to-track-down drawing errors, so better
warn explicitly about it.
This commit is contained in:
Matthias Clasen 2015-12-16 17:27:14 -05:00
parent 2417184a1f
commit ec5596ce20
1 changed files with 7 additions and 1 deletions
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8
gtk/gtkcssgadget.c
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@ -524,7 +524,8 @@ gtk_css_gadget_allocate (GtkCssGadget *gadget,
GtkAllocation *out_clip)
{
GtkCssGadgetPrivate *priv = gtk_css_gadget_get_instance_private (gadget);
GtkAllocation content_allocation, content_clip;
GtkAllocation content_allocation;
GtkAllocation content_clip = { 0, 0, 0, 0 };
GtkBorder margin, border, padding, shadow, extents;
GtkCssStyle *style;
@ -563,11 +564,16 @@ gtk_css_gadget_allocate (GtkCssGadget *gadget,
GTK_CSS_GADGET_GET_CLASS (gadget)->allocate (gadget, &content_allocation, baseline, &content_clip);
if (content_clip.width == 0 || content_clip.height == 0)
g_warning ("GtkCssAllocateFunc did not set clip\n");
_gtk_css_shadows_value_get_extents (gtk_css_style_get_value (style, GTK_CSS_PROPERTY_BOX_SHADOW), &shadow);
out_clip->x = allocation->x + margin.left - shadow.left;
out_clip->y = allocation->y + margin.top - shadow.top;
out_clip->width = allocation->width - margin.left - margin.right + shadow.left + shadow.right;
out_clip->height = allocation->height - margin.top - margin.bottom + shadow.top + shadow.bottom;
gdk_rectangle_union (&content_clip, out_clip, out_clip);
}