86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
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#include "config.h"
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#include "subsurfaceoverlay.h"
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#include "gtkwidgetprivate.h"
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#include "gtknative.h"
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#include "gdksurfaceprivate.h"
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#include "gdksubsurfaceprivate.h"
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struct _GtkSubsurfaceOverlay
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{
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GtkInspectorOverlay parent_instance;
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};
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struct _GtkSubsurfaceOverlayClass
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{
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GtkInspectorOverlayClass parent_class;
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};
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G_DEFINE_TYPE (GtkSubsurfaceOverlay, gtk_subsurface_overlay, GTK_TYPE_INSPECTOR_OVERLAY)
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static void
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gtk_subsurface_overlay_snapshot (GtkInspectorOverlay *overlay,
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GtkSnapshot *snapshot,
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GskRenderNode *node,
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GtkWidget *widget)
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{
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GdkSurface *surface = gtk_widget_get_surface (widget);
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double native_x, native_y;
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gtk_native_get_surface_transform (GTK_NATIVE (widget), &native_x, &native_y);
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gtk_snapshot_save (snapshot);
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/* Subsurface positions are relative to the surface, so undo the surface
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* transform that gtk_inspector_prepare_render does.
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*/
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gtk_snapshot_translate (snapshot, &(graphene_point_t) { - native_x, - native_y });
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for (gsize i = 0; i < gdk_surface_get_n_subsurfaces (surface); i++)
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{
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GdkSubsurface *subsurface = gdk_surface_get_subsurface (surface, i);
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graphene_rect_t rect;
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GdkRGBA color;
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if (gdk_subsurface_get_texture (subsurface) == NULL)
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continue;
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if (gdk_subsurface_is_above_parent (subsurface))
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gdk_rgba_parse (&color, "goldenrod");
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else
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gdk_rgba_parse (&color, "magenta");
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gdk_subsurface_get_rect (subsurface, &rect);
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/* Use 4 color nodes since a border node overlaps and prevents
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* the subsurface from being raised.
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*/
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gtk_snapshot_append_color (snapshot, &color, &GRAPHENE_RECT_INIT (rect.origin.x - 2, rect.origin.y - 2, 2, rect.size.height + 4));
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gtk_snapshot_append_color (snapshot, &color, &GRAPHENE_RECT_INIT (rect.origin.x - 2, rect.origin.y - 2, rect.size.width + 4, 2));
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gtk_snapshot_append_color (snapshot, &color, &GRAPHENE_RECT_INIT (rect.origin.x - 2, rect.origin.y + rect.size.height, rect.size.width + 4, 2));
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gtk_snapshot_append_color (snapshot, &color, &GRAPHENE_RECT_INIT (rect.origin.x + rect.size.width, rect.origin.y - 2, 2, rect.size.height + 4));
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}
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gtk_snapshot_restore (snapshot);
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}
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static void
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gtk_subsurface_overlay_init (GtkSubsurfaceOverlay *self)
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{
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}
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static void
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gtk_subsurface_overlay_class_init (GtkSubsurfaceOverlayClass *klass)
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{
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GtkInspectorOverlayClass *overlay_class = (GtkInspectorOverlayClass *)klass;
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overlay_class->snapshot = gtk_subsurface_overlay_snapshot;
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}
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GtkInspectorOverlay *
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gtk_subsurface_overlay_new (void)
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{
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return g_object_new (GTK_TYPE_SUBSURFACE_OVERLAY, NULL);
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}
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