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/* dzl-bin.c
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*
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* Copyright (C) 2017 Christian Hergert <chergert@redhat.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the 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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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* 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
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define G_LOG_DOMAIN "dzl-bin"
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#include "config.h"
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/**
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* SECTION:dzl-bin
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* @title: DzlBin
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*
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* This is just a #GtkBin class that also allows for various styling with
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* CSS over what can be done in GtkBin directly.
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*/
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#include <string.h>
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#include "widgets/dzl-bin.h"
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#include "util/dzl-util-private.h"
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G_DEFINE_TYPE (DzlBin, dzl_bin, GTK_TYPE_BIN)
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static gboolean
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dzl_bin_draw (GtkWidget *widget,
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cairo_t *cr)
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{
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GtkStyleContext *style_context;
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GtkWidget *child;
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GtkAllocation alloc;
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GtkStateFlags state;
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GtkBorder margin;
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g_assert (DZL_IS_BIN (widget));
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gtk_widget_get_allocation (widget, &alloc);
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alloc.x = 0;
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alloc.y = 0;
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style_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_margin (style_context, state, &margin);
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dzl_gtk_allocation_subtract_border (&alloc, &margin);
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gtk_render_background (style_context, cr, alloc.x, alloc.y, alloc.width, alloc.height);
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child = gtk_bin_get_child (GTK_BIN (widget));
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if (child != NULL)
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gtk_container_propagate_draw (GTK_CONTAINER (widget), child, cr);
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gtk_render_frame (style_context, cr, alloc.x, alloc.y, alloc.width, alloc.height);
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return FALSE;
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}
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static void
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dzl_bin_size_allocate (GtkWidget *widget,
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GtkAllocation *alloc)
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{
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DzlBin *self = (DzlBin *)widget;
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GtkAllocation child_alloc = { 0 };
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GtkWidget *child;
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g_assert (DZL_IS_BIN (self));
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g_assert (alloc != NULL);
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child = gtk_bin_get_child (GTK_BIN (self));
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if (child != NULL)
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{
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GtkStyleContext *style_context;
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GtkBorder borders;
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style_context = gtk_widget_get_style_context (widget);
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child_alloc = *alloc;
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if (gtk_widget_get_has_window (widget))
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{
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child_alloc.x = 0;
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child_alloc.y = 0;
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}
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dzl_gtk_style_context_get_borders (style_context, &borders);
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dzl_gtk_allocation_subtract_border (&child_alloc, &borders);
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}
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GTK_WIDGET_CLASS (dzl_bin_parent_class)->size_allocate (widget, alloc);
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if (child != NULL)
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gtk_widget_size_allocate (child, &child_alloc);
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}
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static void
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dzl_bin_get_preferred_width (GtkWidget *widget,
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gint *min_width,
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gint *nat_width)
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{
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DzlBin *self = (DzlBin *)widget;
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GtkStyleContext *style_context;
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GtkWidget *child;
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GtkBorder borders;
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g_assert (DZL_IS_BIN (widget));
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*min_width = 0;
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*nat_width = 0;
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child = gtk_bin_get_child (GTK_BIN (self));
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if (child != NULL)
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gtk_widget_get_preferred_width (child, min_width, nat_width);
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style_context = gtk_widget_get_style_context (widget);
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dzl_gtk_style_context_get_borders (style_context, &borders);
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*min_width += (borders.left + borders.right);
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*nat_width += (borders.left + borders.right);
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}
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static void
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dzl_bin_get_preferred_height (GtkWidget *widget,
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gint *min_height,
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gint *nat_height)
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{
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DzlBin *self = (DzlBin *)widget;
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GtkStyleContext *style_context;
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GtkWidget *child;
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GtkBorder borders;
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g_assert (DZL_IS_BIN (widget));
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*min_height = 0;
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*nat_height = 0;
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child = gtk_bin_get_child (GTK_BIN (self));
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if (child != NULL)
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gtk_widget_get_preferred_height (child, min_height, nat_height);
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style_context = gtk_widget_get_style_context (widget);
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dzl_gtk_style_context_get_borders (style_context, &borders);
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*min_height += (borders.top + borders.bottom);
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*nat_height += (borders.top + borders.bottom);
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}
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static void
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dzl_bin_class_init (DzlBinClass *klass)
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{
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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widget_class->draw = dzl_bin_draw;
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widget_class->get_preferred_width = dzl_bin_get_preferred_width;
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widget_class->get_preferred_height = dzl_bin_get_preferred_height;
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widget_class->size_allocate = dzl_bin_size_allocate;
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gtk_widget_class_set_css_name (widget_class, "dzlbin");
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}
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static void
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dzl_bin_init (DzlBin *self)
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{
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}
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GtkWidget *
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dzl_bin_new (void)
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{
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return g_object_new (DZL_TYPE_BIN, NULL);
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}
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