Add GdMainView for use in the overview

This widget courtesy of gnome-documents

https://bugzilla.gnome.org/show_bug.cgi?id=455173

1 files changed, 204 insertions, 0 deletions

diff --git a/lib/widgets/gd-main-icon-view.c b/lib/widgets/gd-main-icon-view.c
new file mode 100644
index 000000000..4cc14c6cd
--- /dev/null
+++ b/lib/widgets/gd-main-icon-view.c
@@ -0,0 +1,204 @@
+/*
+ * Copyright (c) 2011 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by 
+ * the Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public 
+ * License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License 
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Author: Cosimo Cecchi <cosimoc@redhat.com>
+ *
+ */
+
+#include "gd-main-icon-view.h"
+#include "gd-main-view.h"
+#include "gd-main-view-generic.h"
+#include "gd-toggle-pixbuf-renderer.h"
+#include "gd-two-lines-renderer.h"
+
+#include <math.h>
+#include <glib/gi18n.h>
+
+#define VIEW_ITEM_WIDTH 140
+#define VIEW_ITEM_WRAP_WIDTH 128
+#define VIEW_COLUMN_SPACING 20
+#define VIEW_MARGIN 16
+
+struct _GdMainIconViewPrivate {
+  GtkCellRenderer *pixbuf_cell;
+  gboolean selection_mode;
+};
+
+static void gd_main_view_generic_iface_init (GdMainViewGenericIface *iface);
+G_DEFINE_TYPE_WITH_CODE (GdMainIconView, gd_main_icon_view, GTK_TYPE_ICON_VIEW,
+                         G_IMPLEMENT_INTERFACE (GD_TYPE_MAIN_VIEW_GENERIC,
+                                                gd_main_view_generic_iface_init))
+
+static GtkTreePath*
+get_source_row (GdkDragContext *context)
+{
+  GtkTreeRowReference *ref;
+
+  ref = g_object_get_data (G_OBJECT (context), "gtk-icon-view-source-row");
+
+  if (ref)
+    return gtk_tree_row_reference_get_path (ref);
+  else
+    return NULL;
+}
+
+static void
+gd_main_icon_view_drag_data_get (GtkWidget *widget,
+                                 GdkDragContext *drag_context,
+                                 GtkSelectionData *data,
+                                 guint info,
+                                 guint time)
+{
+  GdMainIconView *self = GD_MAIN_ICON_VIEW (widget);
+  GtkTreeModel *model = gtk_icon_view_get_model (GTK_ICON_VIEW (self));
+
+  if (info != 0)
+    return;
+
+  _gd_main_view_generic_dnd_common (model, self->priv->selection_mode,
+                                    get_source_row (drag_context), data);
+
+  GTK_WIDGET_CLASS (gd_main_icon_view_parent_class)->drag_data_get (widget, drag_context,
+                                                                    data, info, time);
+}
+
+static void
+gd_main_icon_view_constructed (GObject *obj)
+{
+  GdMainIconView *self = GD_MAIN_ICON_VIEW (obj);
+  GtkCellRenderer *cell;
+  const GtkTargetEntry targets[] = {
+    { "text/uri-list", GTK_TARGET_OTHER_APP, 0 }
+  };
+
+  G_OBJECT_CLASS (gd_main_icon_view_parent_class)->constructed (obj);
+
+  gtk_widget_set_hexpand (GTK_WIDGET (self), TRUE);
+  gtk_widget_set_vexpand (GTK_WIDGET (self), TRUE);
+  gtk_icon_view_set_selection_mode (GTK_ICON_VIEW (self), GTK_SELECTION_NONE);
+
+  g_object_set (self,
+                "column-spacing", VIEW_COLUMN_SPACING,
+                "margin", VIEW_MARGIN,
+                NULL);
+
+  self->priv->pixbuf_cell = cell = gd_toggle_pixbuf_renderer_new ();
+  g_object_set (cell,
+                "xalign", 0.5,
+                "yalign", 0.5,
+                NULL);
+
+  gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (self), cell, FALSE);
+  gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (self), cell,
+                                 "active", GD_MAIN_COLUMN_SELECTED);
+  gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (self), cell,
+                                 "pixbuf", GD_MAIN_COLUMN_ICON);
+
+  cell = gd_two_lines_renderer_new ();
+  g_object_set (cell,
+                "alignment", PANGO_ALIGN_CENTER,
+                "wrap-mode", PANGO_WRAP_WORD_CHAR,
+                "wrap-width", VIEW_ITEM_WRAP_WIDTH,
+                "text-lines", 3,
+                NULL);
+  gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (self), cell, FALSE);
+  gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (self), cell,
+                                 "text", GD_MAIN_COLUMN_TITLE);
+  gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (self), cell,
+                                 "line-two", GD_MAIN_COLUMN_AUTHOR);
+
+  gtk_icon_view_enable_model_drag_source (GTK_ICON_VIEW (self),
+                                          GDK_BUTTON1_MASK,
+                                          targets, 1,
+                                          GDK_ACTION_COPY);
+}
+
+static void
+gd_main_icon_view_class_init (GdMainIconViewClass *klass)
+{
+  GObjectClass *oclass = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *wclass = GTK_WIDGET_CLASS (klass);
+
+  oclass->constructed = gd_main_icon_view_constructed;
+  wclass->drag_data_get = gd_main_icon_view_drag_data_get;
+
+  gtk_widget_class_install_style_property (wclass,
+                                           g_param_spec_int ("check-icon-size",
+                                                             "Check icon size",
+                                                             "Check icon size",
+                                                             -1, G_MAXINT, 40,
+                                                             G_PARAM_READWRITE));
+
+  g_type_class_add_private (klass, sizeof (GdMainIconViewPrivate));
+}
+
+static void
+gd_main_icon_view_init (GdMainIconView *self)
+{
+  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, GD_TYPE_MAIN_ICON_VIEW, GdMainIconViewPrivate);
+}
+
+static GtkTreePath *
+gd_main_icon_view_get_path_at_pos (GdMainViewGeneric *mv,
+                                   gint x,
+                                   gint y)
+{
+  return gtk_icon_view_get_path_at_pos (GTK_ICON_VIEW (mv), x, y);
+}
+
+static void
+gd_main_icon_view_set_selection_mode (GdMainViewGeneric *mv,
+                                      gboolean selection_mode)
+{
+  GdMainIconView *self = GD_MAIN_ICON_VIEW (mv);
+
+  self->priv->selection_mode = selection_mode;
+
+  g_object_set (self->priv->pixbuf_cell,
+                "toggle-visible", selection_mode,
+                NULL);
+  gtk_widget_queue_draw (GTK_WIDGET (self));
+}
+
+static void
+gd_main_icon_view_scroll_to_path (GdMainViewGeneric *mv,
+                                  GtkTreePath *path)
+{
+  gtk_icon_view_scroll_to_path (GTK_ICON_VIEW (mv), path, TRUE, 0.5, 0.5);
+}
+
+static void
+gd_main_icon_view_set_model (GdMainViewGeneric *mv,
+                             GtkTreeModel *model)
+{
+  gtk_icon_view_set_model (GTK_ICON_VIEW (mv), model);
+}
+
+static void
+gd_main_view_generic_iface_init (GdMainViewGenericIface *iface)
+{
+  iface->set_model = gd_main_icon_view_set_model;
+  iface->get_path_at_pos = gd_main_icon_view_get_path_at_pos;
+  iface->scroll_to_path = gd_main_icon_view_scroll_to_path;
+  iface->set_selection_mode = gd_main_icon_view_set_selection_mode;
+}
+
+GtkWidget *
+gd_main_icon_view_new (void)
+{
+  return g_object_new (GD_TYPE_MAIN_ICON_VIEW, NULL);
+}