Erick Pérez Castellanos
5b23fea95f
Added new-event mark to month-view. Added navigation arrows to month-view. Initially moved edit-event to a dialog.
745 lines
25 KiB
C
745 lines
25 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 2 -*- */
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/*
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* gcal-arrow-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-arrow-container.h"
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#include <math.h>
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struct _GcalArrowContainerPrivate
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{
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guint arrow_size;
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};
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static void gcal_arrow_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_arrow_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_arrow_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_arrow_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_arrow_container_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static gboolean gcal_arrow_container_draw (GtkWidget *widget,
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cairo_t *cr);
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static void gcal_arrow_container_draw_arrow (GtkWidget *widget,
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cairo_t *cr);
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static void gcal_arrow_container_draw_shadow (GtkWidget *widget,
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cairo_t *cr);
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static void gcal_arrow_container_get_padding_and_border (GtkWidget *widget,
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GtkBorder *border,
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guint *border_width,
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guint *arrow_size,
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guint *shadow);
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G_DEFINE_TYPE(GcalArrowContainer, gcal_arrow_container, GTK_TYPE_BIN)
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static void
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gcal_arrow_container_class_init (GcalArrowContainerClass *klass)
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{
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GtkWidgetClass* widget_class;
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widget_class = GTK_WIDGET_CLASS (klass);
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widget_class->get_preferred_width =
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gcal_arrow_container_get_preferred_width;
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widget_class->get_preferred_height_for_width =
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gcal_arrow_container_get_preferred_height_for_width;
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widget_class->get_preferred_height =
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gcal_arrow_container_get_preferred_height;
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widget_class->get_preferred_width_for_height =
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gcal_arrow_container_get_preferred_width_for_height;
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widget_class->size_allocate = gcal_arrow_container_size_allocate;
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widget_class->draw = gcal_arrow_container_draw;
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/* Style properties */
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gtk_widget_class_install_style_property (
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widget_class,
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g_param_spec_uint ("arrow-size",
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"Arrow width and height",
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"The width and height of the arrow",
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0,
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G_MAXUINT32,
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0,
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G_PARAM_READABLE));
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gtk_widget_class_install_style_property (
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widget_class,
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g_param_spec_uint ("shadow-span",
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"Shadow span",
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"Shadow span",
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0,
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G_MAXUINT32,
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0,
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G_PARAM_READABLE));
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g_type_class_add_private ((gpointer)klass, sizeof(GcalArrowContainerPrivate));
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}
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static void
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gcal_arrow_container_init (GcalArrowContainer *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_ARROW_CONTAINER,
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GcalArrowContainerPrivate);
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}
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static void
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gcal_arrow_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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guint shadow;
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gcal_arrow_container_get_padding_and_border (widget,
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&padding,
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NULL,
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NULL,
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&shadow);
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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 + 2 * shadow;
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natural += padding.left + padding.right + 2 * shadow;
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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_arrow_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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guint shadow;
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guint arrow_size;
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gint minimum;
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gint natural;
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gcal_arrow_container_get_padding_and_border (widget,
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&padding,
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NULL,
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&arrow_size,
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&shadow);
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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 - 2 * shadow;
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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.bottom + arrow_size + 2 * shadow;
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natural += padding.top + padding.bottom + arrow_size + 2 * shadow;
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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_arrow_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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guint shadow;
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guint arrow_size;
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gint minimum;
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gint natural;
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gcal_arrow_container_get_padding_and_border (widget,
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&padding,
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NULL,
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&arrow_size,
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&shadow);
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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.bottom + arrow_size + 2 * shadow;
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natural += padding.top + padding.bottom + arrow_size + 2 * shadow;
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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_arrow_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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guint shadow;
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gint minimum;
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gint natural;
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gcal_arrow_container_get_padding_and_border (widget,
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&padding,
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NULL,
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NULL,
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&shadow);
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minimum = 0;
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natural = 0;
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child_height = height - padding.top - padding.bottom - 2 * shadow;
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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 + 2 * shadow;
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natural += padding.left + padding.right + 2 * shadow;
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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_arrow_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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guint arrow_size;
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guint shadow;
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gtk_widget_set_allocation (widget, allocation);
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gcal_arrow_container_get_padding_and_border (widget,
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&padding,
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NULL,
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&arrow_size,
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&shadow);
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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 + shadow;
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child_allocation.y = padding.top + shadow;
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child_allocation.height =
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MAX (1,
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allocation->height - padding.top - padding.bottom - 2 * shadow - arrow_size);
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child_allocation.width =
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MAX (1,
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allocation->width - padding.left - padding.right - 2 * shadow);
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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_arrow_container_draw (GtkWidget *widget,
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cairo_t *cr)
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{
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GtkBorder border;
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guint border_width;
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guint width;
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guint height;
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guint arrow_size;
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guint shadow;
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gtk_style_context_get_border (
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gtk_widget_get_style_context (widget),
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gtk_widget_get_state_flags (widget),
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&border);
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gcal_arrow_container_get_padding_and_border (widget,
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NULL,
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&border_width,
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&arrow_size,
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&shadow);
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width = gtk_widget_get_allocated_width (widget) - 2 * border_width - 2 * shadow;
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height = gtk_widget_get_allocated_height (widget) - 2 * border_width - arrow_size - 2 * shadow;
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gcal_arrow_container_draw_shadow (widget, cr);
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gtk_render_background (gtk_widget_get_style_context (widget),
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cr,
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border_width + shadow, border_width + shadow,
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width, height);
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gtk_render_frame_gap (gtk_widget_get_style_context (widget),
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cr,
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border_width + shadow, border_width + shadow,
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width, height,
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GTK_POS_BOTTOM,
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width / 2 - arrow_size - border.bottom,
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width / 2 + arrow_size + border.bottom);
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gcal_arrow_container_draw_arrow (widget, cr);
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GTK_WIDGET_CLASS (gcal_arrow_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_arrow_container_draw_arrow (GtkWidget *widget,
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cairo_t *cr)
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{
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GdkRGBA color;
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GtkBorder border;
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guint arrow_size;
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guint border_width;
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guint shadow;
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guint width;
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guint height;
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gtk_style_context_get_border (
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gtk_widget_get_style_context (widget),
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gtk_widget_get_state_flags (widget),
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&border);
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gcal_arrow_container_get_padding_and_border (widget,
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NULL,
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&border_width,
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&arrow_size,
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&shadow);
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width = gtk_widget_get_allocated_width (widget) - 2 * border_width - 2 * shadow;
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height = gtk_widget_get_allocated_height (widget) - 2 * border_width - arrow_size - 2 * shadow;
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cairo_save (cr);
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cairo_move_to (cr,
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border_width + shadow + width / 2 - arrow_size,
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border_width + shadow + height - border.bottom);
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cairo_rel_line_to (cr, 0, border.bottom);
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cairo_rel_line_to (cr, arrow_size, arrow_size);
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cairo_rel_line_to (cr, arrow_size, - arrow_size);
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cairo_rel_line_to (cr, 0, - border.bottom);
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gtk_style_context_get_background_color (
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gtk_widget_get_style_context (widget),
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gtk_widget_get_state_flags (widget),
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&color);
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cairo_set_source_rgba (cr, color.red, color.green, color.blue, color.alpha);
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cairo_fill (cr);
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cairo_set_line_width (cr, border.bottom);
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cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
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cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
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cairo_move_to (cr,
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border_width + shadow + width / 2 - arrow_size,
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border_width + shadow + height);
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cairo_rel_line_to (cr, arrow_size, arrow_size);
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cairo_rel_line_to (cr, arrow_size, - arrow_size);
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gtk_style_context_get_border_color (
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gtk_widget_get_style_context (widget),
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gtk_widget_get_state_flags (widget),
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&color);
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cairo_set_source_rgb (cr, color.red, color.green, color.blue);
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cairo_stroke (cr);
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cairo_restore (cr);
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}
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static void
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gcal_arrow_container_draw_shadow (GtkWidget *widget,
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cairo_t *cr)
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{
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cairo_pattern_t *pattern;
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gdouble inner_alpha;
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gint width;
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gint height;
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guint arrow_size;
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guint shadow_span;
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guint border_width;
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gdouble shadow_span_tan;
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gcal_arrow_container_get_padding_and_border (widget,
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NULL,
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&border_width,
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&arrow_size,
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&shadow_span);
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width = gtk_widget_get_allocated_width (widget);
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height = gtk_widget_get_allocated_height (widget);
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shadow_span_tan = shadow_span / tan (G_PI_4 / 2 + G_PI_4);
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inner_alpha = 0.8;
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cairo_save (cr);
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/* Top border */
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pattern = cairo_pattern_create_linear (0, border_width,
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0, border_width + 3 * shadow_span);
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cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, 0.0);
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cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, inner_alpha);
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cairo_set_source (cr, pattern);
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cairo_pattern_destroy (pattern);
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cairo_rectangle (cr,
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border_width + shadow_span, border_width,
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width - 2 * border_width - 2 * shadow_span, shadow_span);
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cairo_fill (cr);
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/* Left border */
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pattern = cairo_pattern_create_linear (border_width, 0,
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border_width + 3 * shadow_span, 0);
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cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, 0.0);
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cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, inner_alpha);
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cairo_set_source (cr, pattern);
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cairo_pattern_destroy (pattern);
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cairo_rectangle (cr,
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border_width, border_width + shadow_span,
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shadow_span, height - 2 * border_width - 2 * shadow_span - arrow_size);
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cairo_fill (cr);
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/* Right border */
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pattern = cairo_pattern_create_linear (width - (border_width + 3 * shadow_span), 0,
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width - border_width, 0);
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cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, inner_alpha);
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cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, 0.0);
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cairo_set_source (cr, pattern);
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cairo_pattern_destroy (pattern);
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cairo_rectangle (cr,
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width - (border_width + shadow_span), border_width + shadow_span,
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shadow_span, height - 2 * border_width - 2 * shadow_span - arrow_size);
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cairo_fill (cr);
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/* Bottom border */
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pattern = cairo_pattern_create_linear (0, height - border_width - 3 * shadow_span - arrow_size,
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0, height - border_width - arrow_size);
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cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, inner_alpha);
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cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, 0.0);
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cairo_set_source (cr, pattern);
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cairo_pattern_destroy (pattern);
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cairo_rectangle (cr,
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border_width + shadow_span, height - border_width - shadow_span - arrow_size,
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width / 2 - arrow_size - border_width - shadow_span - shadow_span_tan, shadow_span);
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cairo_rectangle (cr,
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width / 2 + arrow_size + shadow_span_tan, height - border_width - shadow_span - arrow_size,
|
|
width / 2 - arrow_size - border_width - shadow_span - shadow_span_tan, shadow_span);
|
|
cairo_fill (cr);
|
|
|
|
/* NW corner */
|
|
pattern = cairo_pattern_create_radial (
|
|
border_width + shadow_span, border_width + shadow_span, 0,
|
|
border_width + shadow_span, border_width + shadow_span, shadow_span);
|
|
|
|
cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, inner_alpha / 3);
|
|
cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, 0.0);
|
|
|
|
cairo_set_source (cr, pattern);
|
|
cairo_pattern_destroy (pattern);
|
|
|
|
cairo_rectangle (cr,
|
|
border_width, border_width,
|
|
shadow_span, shadow_span);
|
|
cairo_fill (cr);
|
|
|
|
/* SE corner */
|
|
pattern = cairo_pattern_create_radial (
|
|
border_width + shadow_span, height - border_width - shadow_span - arrow_size, 0,
|
|
border_width + shadow_span, height - border_width - shadow_span - arrow_size, shadow_span);
|
|
|
|
cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, inner_alpha / 3);
|
|
cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, 0.0);
|
|
|
|
cairo_set_source (cr, pattern);
|
|
cairo_pattern_destroy (pattern);
|
|
|
|
cairo_rectangle (cr,
|
|
border_width, height - border_width - shadow_span - arrow_size,
|
|
shadow_span, shadow_span);
|
|
cairo_fill (cr);
|
|
|
|
/* SW corner */
|
|
pattern = cairo_pattern_create_radial (
|
|
width - border_width - shadow_span, height - border_width - shadow_span - arrow_size, 0,
|
|
width - border_width - shadow_span, height - border_width - shadow_span - arrow_size, shadow_span);
|
|
|
|
cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, inner_alpha / 3);
|
|
cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, 0.0);
|
|
|
|
cairo_set_source (cr, pattern);
|
|
cairo_pattern_destroy (pattern);
|
|
|
|
cairo_rectangle (cr,
|
|
width - border_width - shadow_span, height - border_width - shadow_span - arrow_size,
|
|
shadow_span, shadow_span);
|
|
cairo_fill (cr);
|
|
|
|
/* Arrow left joint */
|
|
pattern = cairo_pattern_create_radial (
|
|
width / 2 - arrow_size - shadow_span_tan, height - border_width - arrow_size, 0,
|
|
width / 2 - arrow_size - shadow_span_tan, height - border_width - arrow_size, shadow_span);
|
|
|
|
cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, 0.0);
|
|
cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, inner_alpha / 3);
|
|
|
|
cairo_set_source (cr, pattern);
|
|
cairo_pattern_destroy (pattern);
|
|
|
|
cairo_move_to (cr,
|
|
width / 2 - arrow_size - shadow_span_tan,
|
|
height - border_width - arrow_size);
|
|
cairo_arc (cr,
|
|
width / 2 - arrow_size - shadow_span_tan,
|
|
height - border_width - arrow_size,
|
|
shadow_span + 2,
|
|
G_PI_2 + G_PI,
|
|
2 * G_PI - G_PI_4);
|
|
|
|
cairo_fill (cr);
|
|
|
|
/* Arrow right joint */
|
|
pattern = cairo_pattern_create_radial (
|
|
width / 2 + arrow_size + shadow_span_tan, height - border_width - arrow_size, 0,
|
|
width / 2 + arrow_size + shadow_span_tan, height - border_width - arrow_size, shadow_span);
|
|
|
|
cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, 0.0);
|
|
cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, inner_alpha / 3);
|
|
|
|
cairo_set_source (cr, pattern);
|
|
cairo_pattern_destroy (pattern);
|
|
|
|
cairo_move_to (cr,
|
|
width / 2 + arrow_size + shadow_span_tan,
|
|
height - border_width - arrow_size);
|
|
cairo_arc (cr,
|
|
width / 2 + arrow_size + shadow_span_tan,
|
|
height - border_width - arrow_size,
|
|
shadow_span + 2,
|
|
G_PI_4 + G_PI,
|
|
G_PI + G_PI_2);
|
|
|
|
cairo_fill (cr);
|
|
|
|
/* Arrow left side */
|
|
cairo_save (cr);
|
|
cairo_translate (cr,
|
|
width / 2 - arrow_size,
|
|
height - border_width - shadow_span - arrow_size);
|
|
cairo_rotate(cr, G_PI_4);
|
|
|
|
pattern = cairo_pattern_create_linear (
|
|
0, 0,
|
|
0, shadow_span);
|
|
|
|
cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, inner_alpha / 3);
|
|
cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, 0.0);
|
|
|
|
cairo_set_source (cr, pattern);
|
|
cairo_pattern_destroy (pattern);
|
|
|
|
cairo_rectangle (cr,
|
|
shadow_span_tan, 0,
|
|
arrow_size * G_SQRT2 - shadow_span_tan, shadow_span);
|
|
|
|
cairo_fill (cr);
|
|
cairo_restore (cr);
|
|
|
|
/* Arrow right side */
|
|
cairo_save (cr);
|
|
cairo_translate (cr,
|
|
width / 2,
|
|
height - border_width - shadow_span);
|
|
cairo_rotate (cr, - G_PI_4);
|
|
|
|
pattern = cairo_pattern_create_linear (
|
|
0, 0,
|
|
0, shadow_span);
|
|
|
|
cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, inner_alpha / 3);
|
|
cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, 0.0);
|
|
|
|
cairo_set_source (cr, pattern);
|
|
cairo_pattern_destroy (pattern);
|
|
|
|
cairo_rectangle (cr,
|
|
0,
|
|
0,
|
|
arrow_size * G_SQRT2 - shadow_span_tan,
|
|
shadow_span);
|
|
|
|
cairo_fill (cr);
|
|
cairo_restore (cr);
|
|
|
|
/* Arrow point */
|
|
pattern = cairo_pattern_create_radial (
|
|
width / 2, height - border_width - shadow_span, 0,
|
|
width / 2, height - border_width - shadow_span, shadow_span);
|
|
|
|
cairo_pattern_add_color_stop_rgba (pattern, 0.0, 0, 0, 0, inner_alpha / 3);
|
|
cairo_pattern_add_color_stop_rgba (pattern, 1.0, 0, 0, 0, 0.0);
|
|
|
|
cairo_set_source (cr, pattern);
|
|
cairo_pattern_destroy (pattern);
|
|
|
|
cairo_move_to (cr,
|
|
width / 2,
|
|
height - border_width - shadow_span);
|
|
cairo_arc (cr,
|
|
width / 2,
|
|
height - border_width - shadow_span,
|
|
shadow_span,
|
|
G_PI_4,
|
|
G_PI_2 + G_PI_4);
|
|
cairo_fill (cr);
|
|
|
|
cairo_restore (cr);
|
|
}
|
|
|
|
static void
|
|
gcal_arrow_container_get_padding_and_border (GtkWidget *widget,
|
|
GtkBorder *border,
|
|
guint *border_width,
|
|
guint *arrow_size,
|
|
guint *shadow)
|
|
{
|
|
GtkBorder tmp;
|
|
guint bd_width;
|
|
|
|
bd_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
|
|
if (border != NULL)
|
|
{
|
|
gtk_style_context_get_padding (
|
|
gtk_widget_get_style_context (widget),
|
|
gtk_widget_get_state_flags (widget),
|
|
border);
|
|
|
|
gtk_style_context_get_border (
|
|
gtk_widget_get_style_context (widget),
|
|
gtk_widget_get_state_flags (widget),
|
|
&tmp);
|
|
|
|
border->top += tmp.top + bd_width;
|
|
border->right += tmp.right + bd_width;
|
|
border->bottom += tmp.bottom + bd_width;
|
|
border->left += tmp.left + bd_width;
|
|
}
|
|
|
|
if (arrow_size != NULL)
|
|
{
|
|
gtk_style_context_get_style (
|
|
gtk_widget_get_style_context (widget),
|
|
"arrow-size", arrow_size,
|
|
NULL);
|
|
}
|
|
|
|
if (border_width != NULL)
|
|
*border_width = bd_width;
|
|
|
|
if (shadow != NULL)
|
|
{
|
|
gtk_style_context_get_style (
|
|
gtk_widget_get_style_context (widget),
|
|
"shadow-span", shadow,
|
|
NULL);
|
|
}
|
|
}
|
|
|
|
GtkWidget*
|
|
gcal_arrow_container_new (void)
|
|
{
|
|
return g_object_new (GCAL_TYPE_ARROW_CONTAINER, NULL);
|
|
}
|