[gnome-photos/wip/rishi/edit-mode: 21/25] Add PhotosEditPalette

[Debarshi Ray <debarshir src gnome org>]

commit 2a33632ef2683b9e71c568f0b02a289c15eac61b
Author: Debarshi Ray <debarshir gnome org>
Date:   Mon Jun 1 08:08:17 2015 +0200

    Add PhotosEditPalette

 src/Makefile.am           |    2 +
 src/photos-edit-palette.c |  272 +++++++++++++++++++++++++++++++++++++++++++++
 src/photos-edit-palette.h |   47 ++++++++
 3 files changed, 321 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 7f9e6be..ec6e80c 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -96,6 +96,8 @@ gnome_photos_SOURCES = \
        photos-dlna-renderers-manager.h \
        photos-dropdown.c \
        photos-dropdown.h \
+       photos-edit-palette.c \
+       photos-edit-palette.h \
        photos-embed.c \
        photos-embed.h \
        photos-empty-results-box.c \
diff --git a/src/photos-edit-palette.c b/src/photos-edit-palette.c
new file mode 100644
index 0000000..26bfcfa
--- /dev/null
+++ b/src/photos-edit-palette.c
@@ -0,0 +1,272 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2015 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+
+#include "config.h"
+
+#include <gio/gio.h>
+
+#include "photos-edit-palette.h"
+#include "photos-mode-controller.h"
+#include "photos-tool.h"
+#include "photos-utils.h"
+
+
+struct _PhotosEditPalette
+{
+  GtkListBox parent_instance;
+  GList *tools;
+  GtkSizeGroup *size_group;
+  PhotosModeController *mode_cntrlr;
+};
+
+struct _PhotosEditPaletteClass
+{
+  GtkListBoxClass parent_class;
+
+  /* signals */
+  void        (*tool_changed)       (PhotosEditPalette *self, PhotosTool *tool);
+};
+
+enum
+{
+  TOOL_CHANGED,
+  LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+
+G_DEFINE_TYPE (PhotosEditPalette, photos_edit_palette, GTK_TYPE_LIST_BOX);
+
+
+static gint
+photos_edit_palette_extensions_sort_func (gconstpointer a, gconstpointer b)
+{
+  GIOExtension *extension_a = (GIOExtension *) a;
+  GIOExtension *extension_b = (GIOExtension *) b;
+  gint priority_a;
+  gint priority_b;
+
+  priority_a = g_io_extension_get_priority (extension_a);
+  priority_b = g_io_extension_get_priority (extension_b);
+  return priority_a - priority_b;
+}
+
+
+static void
+photos_edit_palette_window_mode_changed (PhotosEditPalette *self, PhotosWindowMode mode, PhotosWindowMode 
old_mode)
+{
+  GtkListBoxRow *row;
+  gint i;
+
+  for (i = 0; (row = gtk_list_box_get_row_at_index (GTK_LIST_BOX (self), i)) != NULL; i++)
+    {
+      GtkRevealer *revealer;
+
+      gtk_list_box_row_set_activatable (row, TRUE);
+      revealer = GTK_REVEALER (g_object_get_data (G_OBJECT (row), "edit-tool-details-revealer"));
+      gtk_revealer_set_reveal_child (revealer, FALSE);
+    }
+
+  g_signal_emit (self, signals[TOOL_CHANGED], 0, NULL);
+}
+
+
+static void
+photos_edit_palette_row_activated (GtkListBox *box, GtkListBoxRow *row)
+{
+  PhotosEditPalette *self = PHOTOS_EDIT_PALETTE (box);
+  GtkListBoxRow *other_row;
+  GtkRevealer *revealer;
+  PhotosTool *tool;
+  gint i;
+
+  gtk_list_box_row_set_activatable (row, FALSE);
+  revealer = GTK_REVEALER (g_object_get_data (G_OBJECT (row), "edit-tool-details-revealer"));
+  gtk_revealer_set_reveal_child (revealer, TRUE);
+
+  for (i = 0; (other_row = gtk_list_box_get_row_at_index (box, i)) != NULL; i++)
+    {
+      if (other_row == row)
+        continue;
+
+      gtk_list_box_row_set_activatable (other_row, TRUE);
+      revealer = GTK_REVEALER (g_object_get_data (G_OBJECT (other_row), "edit-tool-details-revealer"));
+      gtk_revealer_set_reveal_child (revealer, FALSE);
+    }
+
+  tool = PHOTOS_TOOL (g_object_get_data (G_OBJECT (row), "edit-tool"));
+  g_signal_emit (self, signals[TOOL_CHANGED], 0, tool);
+}
+
+
+static void
+photos_edit_palette_update_header_func (GtkListBoxRow *row, GtkListBoxRow *before)
+{
+  GtkWidget *header;
+
+  if (before == NULL)
+    {
+      gtk_list_box_row_set_header (row, NULL);
+      return;
+    }
+
+  header = gtk_list_box_row_get_header (row);
+  if (header == NULL)
+    {
+      header = gtk_separator_new (GTK_ORIENTATION_HORIZONTAL);
+      gtk_widget_show (header);
+      gtk_list_box_row_set_header (row, header);
+    }
+}
+
+
+static void
+photos_edit_palette_dispose (GObject *object)
+{
+  PhotosEditPalette *self = PHOTOS_EDIT_PALETTE (object);
+
+  g_list_free_full (self->tools, g_object_unref);
+  self->tools = NULL;
+
+  g_clear_object (&self->size_group);
+  g_clear_object (&self->mode_cntrlr);
+
+  G_OBJECT_CLASS (photos_edit_palette_parent_class)->dispose (object);
+}
+
+
+static void
+photos_edit_palette_init (PhotosEditPalette *self)
+{
+  GIOExtensionPoint *extension_point;
+  GList *extensions;
+  GList *l;
+
+  gtk_widget_set_vexpand (GTK_WIDGET (self), TRUE);
+  gtk_list_box_set_selection_mode (GTK_LIST_BOX (self), GTK_SELECTION_NONE);
+  gtk_list_box_set_header_func (GTK_LIST_BOX (self),
+                                (GtkListBoxUpdateHeaderFunc) photos_edit_palette_update_header_func,
+                                NULL,
+                                NULL);
+
+  extension_point = g_io_extension_point_lookup (PHOTOS_TOOL_EXTENSION_POINT_NAME);
+  extensions = g_io_extension_point_get_extensions (extension_point);
+  extensions = g_list_sort (extensions, photos_edit_palette_extensions_sort_func);
+
+  self->size_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
+
+  for (l = extensions; l != NULL; l = l->next)
+    {
+      GIOExtension *extension = (GIOExtension *) l->data;
+      GType type;
+      GtkWidget *grid0;
+      GtkWidget *grid1;
+      GtkWidget *image;
+      GtkWidget *label;
+      GtkWidget *revealer;
+      GtkWidget *row;
+      GtkWidget *tool_widget;
+      PhotosTool *tool;
+      const gchar *icon_name;
+      const gchar *name;
+
+      type = g_io_extension_get_type (extension);
+      tool = PHOTOS_TOOL (g_object_new (type, NULL));
+      self->tools = g_list_prepend (self->tools, g_object_ref (tool));
+
+      row = gtk_list_box_row_new ();
+      g_object_set_data_full (G_OBJECT (row), "edit-tool", g_object_ref (tool), g_object_unref);
+      gtk_container_add (GTK_CONTAINER (self), row);
+
+      grid0 = gtk_grid_new ();
+      gtk_widget_set_margin_bottom (grid0, 6);
+      gtk_widget_set_margin_start (grid0, 18);
+      gtk_widget_set_margin_end (grid0, 18);
+      gtk_widget_set_margin_top (grid0, 6);
+      gtk_orientable_set_orientation (GTK_ORIENTABLE (grid0), GTK_ORIENTATION_VERTICAL);
+      gtk_container_add (GTK_CONTAINER (row), grid0);
+
+      grid1 = gtk_grid_new ();
+      gtk_orientable_set_orientation (GTK_ORIENTABLE (grid1), GTK_ORIENTATION_HORIZONTAL);
+      gtk_grid_set_column_spacing (GTK_GRID (grid1), 12);
+      gtk_container_add (GTK_CONTAINER (grid0), grid1);
+
+      icon_name = photos_tool_get_icon_name (tool);
+      image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_BUTTON);
+      gtk_container_add (GTK_CONTAINER (grid1), image);
+
+      name = photos_tool_get_name (tool);
+      label = gtk_label_new (name);
+      gtk_container_add (GTK_CONTAINER (grid1), label);
+
+      revealer = gtk_revealer_new ();
+      gtk_revealer_set_transition_type (GTK_REVEALER (revealer), GTK_REVEALER_TRANSITION_TYPE_SLIDE_DOWN);
+      g_object_set_data (G_OBJECT (row), "edit-tool-details-revealer", revealer);
+      gtk_container_add (GTK_CONTAINER (grid0), revealer);
+
+      tool_widget = photos_tool_get_widget (tool);
+      gtk_widget_set_margin_bottom (tool_widget, 12);
+      gtk_widget_set_margin_top (tool_widget, 12);
+      gtk_container_add (GTK_CONTAINER (revealer), tool_widget);
+      gtk_size_group_add_widget (self->size_group, tool_widget);
+
+      g_object_unref (tool);
+    }
+
+  self->mode_cntrlr = photos_mode_controller_dup_singleton ();
+  g_signal_connect_object (self->mode_cntrlr,
+                           "window-mode-changed",
+                           G_CALLBACK (photos_edit_palette_window_mode_changed),
+                           self,
+                           G_CONNECT_SWAPPED);
+
+  gtk_widget_show_all (GTK_WIDGET (self));
+}
+
+
+static void
+photos_edit_palette_class_init (PhotosEditPaletteClass *class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (class);
+  GtkListBoxClass *list_box_class = GTK_LIST_BOX_CLASS (class);
+
+  object_class->dispose = photos_edit_palette_dispose;
+  list_box_class->row_activated = photos_edit_palette_row_activated;
+
+  signals[TOOL_CHANGED] = g_signal_new ("tool-changed",
+                                        G_TYPE_FROM_CLASS (class),
+                                        G_SIGNAL_RUN_LAST,
+                                        G_STRUCT_OFFSET (PhotosEditPaletteClass, tool_changed),
+                                        NULL, /* accumulator */
+                                        NULL, /* accu_data */
+                                        g_cclosure_marshal_VOID__OBJECT,
+                                        G_TYPE_NONE,
+                                        1,
+                                        PHOTOS_TYPE_TOOL);
+}
+
+
+GtkWidget *
+photos_edit_palette_new (void)
+{
+  return g_object_new (PHOTOS_TYPE_EDIT_PALETTE, NULL);
+}
diff --git a/src/photos-edit-palette.h b/src/photos-edit-palette.h
new file mode 100644
index 0000000..f8150c1
--- /dev/null
+++ b/src/photos-edit-palette.h
@@ -0,0 +1,47 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2015 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef PHOTOS_EDIT_PALETTE_H
+#define PHOTOS_EDIT_PALETTE_H
+
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+#define PHOTOS_TYPE_EDIT_PALETTE (photos_edit_palette_get_type ())
+
+#define PHOTOS_EDIT_PALETTE(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
+   PHOTOS_TYPE_EDIT_PALETTE, PhotosEditPalette))
+
+#define PHOTOS_IS_EDIT_PALETTE(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
+   PHOTOS_TYPE_EDIT_PALETTE))
+
+typedef struct _PhotosEditPalette      PhotosEditPalette;
+typedef struct _PhotosEditPaletteClass PhotosEditPaletteClass;
+
+GType                  photos_edit_palette_get_type               (void) G_GNUC_CONST;
+
+GtkWidget             *photos_edit_palette_new                    (void);
+
+G_END_DECLS
+
+#endif /* PHOTOS_EDIT_PALETTE_H */