338 lines
11 KiB
C
338 lines
11 KiB
C
/* -*- mode: c; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* gcal-floating-container.c
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* Copyright (C) 2012 Erick Pérez Castellanos <erickpc@gnome.org>
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*
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* gnome-calendar is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* gnome-calendar is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "gcal-floating-container.h"
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struct _GcalFloatingContainerPrivate
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{
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guint border;
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};
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static void gcal_floating_container_get_preferred_width (GtkWidget *widget,
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gint *minimum_width,
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gint *natural_width);
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static void gcal_floating_container_get_preferred_height_for_width (GtkWidget *widget,
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gint width,
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gint *minimum_height,
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gint *natural_height);
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static void gcal_floating_container_get_preferred_height (GtkWidget *widget,
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gint *minimum_height,
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gint *natural_height);
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static void gcal_floating_container_get_preferred_width_for_height (GtkWidget *widget,
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gint height,
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gint *minimum_width,
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gint *natural_width);
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static void gcal_floating_container_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static gboolean gcal_floating_container_draw (GtkWidget *widget,
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cairo_t *cr);
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static void gcal_floating_container_add (GtkContainer *container,
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GtkWidget *child);
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static void gcal_floating_container_get_padding_and_border (GtkWidget *widget,
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GtkBorder *border);
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G_DEFINE_TYPE(GcalFloatingContainer, gcal_floating_container, GTK_TYPE_BIN)
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static void
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gcal_floating_container_class_init (GcalFloatingContainerClass *klass)
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{
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GtkWidgetClass* widget_class;
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GtkContainerClass *container_class;
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widget_class = GTK_WIDGET_CLASS (klass);
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container_class = GTK_CONTAINER_CLASS (klass);
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widget_class->get_preferred_width =
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gcal_floating_container_get_preferred_width;
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widget_class->get_preferred_height_for_width =
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gcal_floating_container_get_preferred_height_for_width;
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widget_class->get_preferred_height =
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gcal_floating_container_get_preferred_height;
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widget_class->get_preferred_width_for_height =
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gcal_floating_container_get_preferred_width_for_height;
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widget_class->size_allocate = gcal_floating_container_size_allocate;
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widget_class->draw = gcal_floating_container_draw;
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container_class->add = gcal_floating_container_add;
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g_type_class_add_private ((gpointer)klass, sizeof (GcalFloatingContainerPrivate));
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}
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static void
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gcal_floating_container_init (GcalFloatingContainer *self)
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{
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gtk_widget_set_has_window (GTK_WIDGET (self), FALSE);
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self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
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GCAL_TYPE_FLOATING_CONTAINER,
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GcalFloatingContainerPrivate);
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}
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static void
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gcal_floating_container_get_preferred_width (GtkWidget *widget,
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gint *minimum_width,
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gint *natural_width)
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{
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gint child_min, child_nat;
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GtkWidget *child;
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GtkBorder padding;
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gint minimum, natural;
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gcal_floating_container_get_padding_and_border (widget, &padding);
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minimum = 0;
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natural = 0;
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child = gtk_bin_get_child (GTK_BIN (widget));
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if (child && gtk_widget_get_visible (child))
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{
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gtk_widget_get_preferred_width (child,
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&child_min, &child_nat);
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minimum += child_min;
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natural += child_nat;
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}
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minimum += padding.left + padding.right;
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natural += padding.left + padding.right;
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if (minimum_width)
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*minimum_width = minimum;
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if (natural_width)
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*natural_width = natural;
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}
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static void
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gcal_floating_container_get_preferred_height_for_width (GtkWidget *widget,
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gint width,
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gint *minimum_height,
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gint *natural_height)
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{
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gint child_min, child_nat, child_width;
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GtkWidget *child;
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GtkBorder padding;
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gint minimum;
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gint natural;
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gcal_floating_container_get_padding_and_border (widget, &padding);
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minimum = 0;
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natural = 0;
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child = gtk_bin_get_child (GTK_BIN (widget));
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if (child && gtk_widget_get_visible (child))
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{
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child_width = width - padding.left - padding.top;
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gtk_widget_get_preferred_height_for_width (child, child_width,
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&child_min, &child_nat);
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minimum = MAX (minimum, child_min);
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natural = MAX (natural, child_nat);
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}
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minimum += padding.top + padding.top;
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natural += padding.top + padding.top;
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if (minimum_height)
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*minimum_height = minimum;
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if (natural_height)
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*natural_height = natural;
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}
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static void
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gcal_floating_container_get_preferred_height (GtkWidget *widget,
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gint *minimum_height,
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gint *natural_height)
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{
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gint child_min, child_nat;
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GtkWidget *child;
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GtkBorder padding;
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gint minimum;
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gint natural;
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gcal_floating_container_get_padding_and_border (widget, &padding);
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minimum = 0;
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natural = 0;
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child = gtk_bin_get_child (GTK_BIN (widget));
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if (child && gtk_widget_get_visible (child))
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{
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gtk_widget_get_preferred_height (child,
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&child_min, &child_nat);
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minimum = child_min;
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natural = child_nat;
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}
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minimum += padding.top + padding.top;
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natural += padding.top + padding.top;
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if (minimum_height)
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*minimum_height = minimum;
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if (natural_height)
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*natural_height = natural;
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}
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static void
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gcal_floating_container_get_preferred_width_for_height (GtkWidget *widget,
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gint height,
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gint *minimum_width,
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gint *natural_width)
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{
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gint child_min, child_nat, child_height;
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GtkWidget *child;
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GtkBorder padding;
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gint minimum;
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gint natural;
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gcal_floating_container_get_padding_and_border (widget, &padding);
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minimum = 0;
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natural = 0;
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child_height = height - padding.top - padding.bottom;
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child = gtk_bin_get_child (GTK_BIN (widget));
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if (child && gtk_widget_get_visible (child))
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{
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gtk_widget_get_preferred_width_for_height (child, child_height,
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&child_min, &child_nat);
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minimum += child_min;
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natural += child_nat;
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}
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minimum += padding.left + padding.right;
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natural += padding.left + padding.right;
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if (minimum_width)
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*minimum_width = minimum;
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if (natural_width)
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*natural_width = natural;
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}
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static void
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gcal_floating_container_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation)
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{
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GtkAllocation child_allocation;
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GtkBorder padding;
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GtkWidget *child;
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gtk_widget_set_allocation (widget, allocation);
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gcal_floating_container_get_padding_and_border (widget, &padding);
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if (gtk_widget_get_realized (widget))
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{
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gdk_window_move_resize (gtk_widget_get_window (widget),
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allocation->x,
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allocation->y,
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allocation->width,
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allocation->height);
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}
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child_allocation.x = padding.left;
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child_allocation.y = padding.top;
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child_allocation.height =
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MAX (1,
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allocation->height - padding.top - padding.bottom);
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child_allocation.width =
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MAX (1,
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allocation->width - padding.left - padding.right);
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child = gtk_bin_get_child (GTK_BIN (widget));
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if (child && gtk_widget_get_visible (child))
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gtk_widget_size_allocate (child, &child_allocation);
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}
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static gboolean
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gcal_floating_container_draw (GtkWidget *widget,
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cairo_t *cr)
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{
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GtkStyleContext *context;
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guint border_width;
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context = gtk_widget_get_style_context (widget);
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border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
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gtk_render_background (context, cr,
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border_width, border_width,
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gtk_widget_get_allocated_width (widget) - 2 * border_width,
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gtk_widget_get_allocated_height (widget) - 2 * border_width);
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gtk_render_frame (context, cr,
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border_width, border_width,
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gtk_widget_get_allocated_width (widget) - 2 * border_width,
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gtk_widget_get_allocated_height (widget) - 2 * border_width);
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if (GTK_WIDGET_CLASS (gcal_floating_container_parent_class)->draw != NULL)
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GTK_WIDGET_CLASS (gcal_floating_container_parent_class)->draw (widget, cr);
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return FALSE;
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}
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static void
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gcal_floating_container_add (GtkContainer *container,
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GtkWidget *child)
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{
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g_return_if_fail (gtk_bin_get_child (GTK_BIN (container)) == NULL);
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GTK_CONTAINER_CLASS (gcal_floating_container_parent_class)->add (container, child);
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}
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static void
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gcal_floating_container_get_padding_and_border (GtkWidget *widget,
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GtkBorder *border)
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{
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GtkStyleContext *context;
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GtkStateFlags state;
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GtkBorder tmp;
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guint border_width;
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context = gtk_widget_get_style_context (widget);
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state = gtk_widget_get_state_flags (widget);
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gtk_style_context_get_padding (context, state, border);
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border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
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gtk_style_context_get_border (context, state, &tmp);
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border->top += tmp.top + border_width;
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border->right += tmp.right + border_width;
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border->bottom += tmp.bottom + border_width;
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border->left += tmp.left + border_width;
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}
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GtkWidget*
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gcal_floating_container_new (void)
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{
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return g_object_new (GCAL_TYPE_FLOATING_CONTAINER, NULL);
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}
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