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gadget: Add baseline debugging

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This should help to understand whats going wrong with
baselines.
This commit is contained in:
Matthias Clasen 2016-01-22 21:34:54 -05:00
parent 5469f26260
commit 029d568b04
1 changed files with 28 additions and 2 deletions
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30
gtk/gtkcssgadget.c
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@ -30,6 +30,7 @@
#include "gtkcsswidgetnodeprivate.h"
#include "gtkrenderbackgroundprivate.h"
#include "gtkrenderborderprivate.h"
#include "gtkdebug.h"
/*
* Gadgets are 'next-generation widgets' - they combine a CSS node
@ -696,8 +697,8 @@ gtk_css_gadget_draw (GtkCssGadget *gadget,
if (!gtk_css_gadget_get_visible (gadget))
return;
x = priv->allocated_size.x;
y = priv->allocated_size.y;
x = priv->allocated_size.x;
y = priv->allocated_size.y;
if (priv->owner && !gtk_widget_get_has_window (priv->owner))
{
GtkAllocation widget_alloc;
@ -746,6 +747,31 @@ gtk_css_gadget_draw (GtkCssGadget *gadget,
y + margin.top,
width - margin.left - margin.right,
height - margin.top - margin.bottom);
#if G_ENABLE_DEBUG
if (GTK_DEBUG_CHECK (BASELINES))
{
int baseline = priv->allocated_baseline;
if (baseline != -1)
{
if (priv->owner && !gtk_widget_get_has_window (priv->owner))
{
GtkAllocation widget_alloc;
gtk_widget_get_allocation (priv->owner, &widget_alloc);
baseline -= widget_alloc.y;
}
cairo_save (cr);
cairo_new_path (cr);
cairo_move_to (cr, x + margin.left, priv->allocated_baseline + 0.5);
cairo_rel_line_to (cr, width - margin.left - margin.right, 0);
cairo_set_line_width (cr, 1.0);
cairo_set_source_rgba (cr, 1.0, 0, 0.25, 0.25);
cairo_stroke (cr);
cairo_restore (cr);
}
}
#endif
}
void