forked from AuroraMiddleware/gtk
142 lines
4.4 KiB
C
142 lines
4.4 KiB
C
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#include "gtkgizmoprivate.h"
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#include "gtkwidgetprivate.h"
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#include "gtkcsscustomgadgetprivate.h"
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G_DEFINE_TYPE (GtkGizmo, gtk_gizmo, GTK_TYPE_WIDGET);
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static void
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gtk_gizmo_measure (GtkWidget *widget,
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GtkOrientation orientation,
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int for_size,
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int *minimum,
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int *natural,
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int *minimum_baseline,
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int *natural_baseline)
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{
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GtkGizmo *self = GTK_GIZMO (widget);
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gtk_css_gadget_get_preferred_size (self->gadget,
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orientation,
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for_size,
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minimum, natural,
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minimum_baseline, natural_baseline);
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}
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static void
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gtk_gizmo_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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GtkGizmo *self = GTK_GIZMO (widget);
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GtkAllocation clip;
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GTK_WIDGET_CLASS (gtk_gizmo_parent_class)->size_allocate (widget, allocation);
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gtk_css_gadget_allocate (self->gadget,
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allocation,
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gtk_widget_get_allocated_baseline (widget),
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&clip);
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gtk_widget_set_clip (widget, &clip);
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}
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static void
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gtk_gizmo_snapshot (GtkWidget *widget,
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GtkSnapshot *snapshot)
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{
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GtkGizmo *self = GTK_GIZMO (widget);
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if (self->snapshot_func)
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self->snapshot_func (self, snapshot);
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}
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static void
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gtk_gizmo_measure_contents (GtkCssGadget *gadget,
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GtkOrientation orientation,
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int for_size,
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int *minimum,
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int *natural,
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int *minimum_baseline,
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int *natural_baseline,
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gpointer user_data)
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{
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GtkGizmo *self = GTK_GIZMO (gtk_css_gadget_get_owner (gadget));
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if (self->measure_func)
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self->measure_func (self, orientation, for_size,
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minimum, natural,
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minimum_baseline, natural_baseline);
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}
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static void
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gtk_gizmo_allocate_contents (GtkCssGadget *gadget,
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const GtkAllocation *allocation,
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int baseline,
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GtkAllocation *out_clip,
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gpointer user_data)
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{
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GtkGizmo *self = GTK_GIZMO (gtk_css_gadget_get_owner (gadget));
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if (self->allocate_func)
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self->allocate_func (self,
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allocation,
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baseline,
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out_clip);
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}
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static void
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gtk_gizmo_finalize (GObject *obj)
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{
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GtkGizmo *self = GTK_GIZMO (obj);
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g_clear_object (&self->gadget);
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G_OBJECT_CLASS (gtk_gizmo_parent_class)->finalize (obj);
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}
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static void
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gtk_gizmo_class_init (GtkGizmoClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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object_class->finalize = gtk_gizmo_finalize;
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widget_class->measure = gtk_gizmo_measure;
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widget_class->size_allocate = gtk_gizmo_size_allocate;
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widget_class->snapshot = gtk_gizmo_snapshot;
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}
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static void
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gtk_gizmo_init (GtkGizmo *self)
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{
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gtk_widget_set_has_window (GTK_WIDGET (self), FALSE);
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self->gadget = gtk_css_custom_gadget_new_for_node (gtk_widget_get_css_node (GTK_WIDGET (self)),
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GTK_WIDGET (self),
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gtk_gizmo_measure_contents,
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gtk_gizmo_allocate_contents,
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NULL,
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NULL,
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NULL);
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}
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GtkWidget *
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gtk_gizmo_new (const char *css_name,
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GtkGizmoMeasureFunc measure_func,
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GtkGizmoAllocateFunc allocate_func,
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GtkGizmoSnapshotFunc snapshot_func)
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{
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GtkGizmo *gizmo = GTK_GIZMO (g_object_new (GTK_TYPE_GIZMO,
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"css-name", css_name,
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NULL));
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gizmo->measure_func = measure_func;
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gizmo->allocate_func = allocate_func;
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gizmo->snapshot_func = snapshot_func;
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return GTK_WIDGET (gizmo);
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}
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