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-rw-r--r--gui/egg-property-cell-renderer.c594
1 files changed, 594 insertions, 0 deletions
diff --git a/gui/egg-property-cell-renderer.c b/gui/egg-property-cell-renderer.c
new file mode 100644
index 0000000..9df5cc3
--- /dev/null
+++ b/gui/egg-property-cell-renderer.c
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+/* Copyright (C) 2011, 2012 Matthias Vogelgesang <matthias.vogelgesang@kit.edu>
+ (Karlsruhe Institute of Technology)
+
+ This library 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 2.1 of the License, or (at your
+ option) any later version.
+
+ This library 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 library; if not, write to the Free Software Foundation, Inc., 51
+ Franklin St, Fifth Floor, Boston, MA 02110, USA */
+
+#include <stdlib.h>
+#include "egg-property-cell-renderer.h"
+
+G_DEFINE_TYPE (EggPropertyCellRenderer, egg_property_cell_renderer, GTK_TYPE_CELL_RENDERER)
+
+#define EGG_PROPERTY_CELL_RENDERER_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj), EGG_TYPE_PROPERTY_CELL_RENDERER, EggPropertyCellRendererPrivate))
+
+
+struct _EggPropertyCellRendererPrivate
+{
+ GObject *object;
+ GtkListStore *list_store;
+ GtkCellRenderer *renderer;
+ GtkCellRenderer *text_renderer;
+ GtkCellRenderer *spin_renderer;
+ GtkCellRenderer *toggle_renderer;
+ GtkCellRenderer *combo_renderer;
+ GHashTable *combo_models;
+};
+
+enum
+{
+ PROP_0,
+ PROP_PROP_NAME,
+ N_PROPERTIES
+};
+
+enum
+{
+ COMBO_COLUMN_VALUE_NAME,
+ COMBO_COLUMN_VALUE,
+ N_COMBO_COLUMNS
+};
+
+static GParamSpec *egg_property_cell_renderer_properties[N_PROPERTIES] = { NULL, };
+
+GtkCellRenderer *
+egg_property_cell_renderer_new (GObject *object,
+ GtkListStore *list_store)
+{
+ EggPropertyCellRenderer *renderer;
+
+ renderer = EGG_PROPERTY_CELL_RENDERER (g_object_new (EGG_TYPE_PROPERTY_CELL_RENDERER, NULL));
+ renderer->priv->object = object;
+ renderer->priv->list_store = list_store;
+ return GTK_CELL_RENDERER (renderer);
+}
+
+static GParamSpec *
+get_pspec_from_object (GObject *object, const gchar *prop_name)
+{
+ GObjectClass *oclass = G_OBJECT_GET_CLASS (object);
+ return g_object_class_find_property (oclass, prop_name);
+}
+
+static void
+get_string_double_repr (GObject *object, const gchar *prop_name, gchar **text, gdouble *number)
+{
+ GParamSpec *pspec;
+ GValue from = { 0 };
+ GValue to_string = { 0 };
+ GValue to_double = { 0 };
+
+ pspec = get_pspec_from_object (object, prop_name);
+ g_value_init (&from, pspec->value_type);
+ g_value_init (&to_string, G_TYPE_STRING);
+ g_value_init (&to_double, G_TYPE_DOUBLE);
+ g_object_get_property (object, prop_name, &from);
+
+ if (g_value_transform (&from, &to_string))
+ *text = g_strdup (g_value_get_string (&to_string));
+ else
+ g_warning ("Could not convert from %s gchar*\n", g_type_name (pspec->value_type));
+
+ if (g_value_transform (&from, &to_double))
+ *number = g_value_get_double (&to_double);
+ else
+ g_warning ("Could not convert from %s to gdouble\n", g_type_name (pspec->value_type));
+}
+
+static void
+clear_adjustment (GObject *object)
+{
+ GtkAdjustment *adjustment;
+
+ g_object_get (object,
+ "adjustment", &adjustment,
+ NULL);
+
+ if (adjustment)
+ g_object_unref (adjustment);
+
+ g_object_set (object,
+ "adjustment", NULL,
+ NULL);
+}
+
+static void
+egg_property_cell_renderer_set_renderer (EggPropertyCellRenderer *renderer,
+ const gchar *prop_name)
+{
+ EggPropertyCellRendererPrivate *priv;
+ GParamSpec *pspec;
+ gchar *text = NULL;
+ gdouble number;
+
+ priv = EGG_PROPERTY_CELL_RENDERER_GET_PRIVATE (renderer);
+ pspec = get_pspec_from_object (priv->object, prop_name);
+
+ /*
+ * Set this renderers mode, so that any actions can be forwarded to our
+ * child renderers.
+ */
+ switch (pspec->value_type) {
+ /* toggle renderers */
+ case G_TYPE_BOOLEAN:
+ priv->renderer = priv->toggle_renderer;
+ g_object_set (renderer, "mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE, NULL);
+ break;
+
+ /* spin renderers */
+ case G_TYPE_FLOAT:
+ case G_TYPE_DOUBLE:
+ priv->renderer = priv->spin_renderer;
+ g_object_set (renderer, "mode", GTK_CELL_RENDERER_MODE_EDITABLE, NULL);
+ g_object_set (priv->renderer, "digits", 5, NULL);
+ break;
+
+ case G_TYPE_INT:
+ case G_TYPE_UINT:
+ case G_TYPE_LONG:
+ case G_TYPE_ULONG:
+ case G_TYPE_INT64:
+ case G_TYPE_UINT64:
+ priv->renderer = priv->spin_renderer;
+ g_object_set (renderer, "mode", GTK_CELL_RENDERER_MODE_EDITABLE, NULL);
+ g_object_set (priv->renderer, "digits", 0, NULL);
+ break;
+
+ /* text renderers */
+ case G_TYPE_POINTER:
+ case G_TYPE_STRING:
+ priv->renderer = priv->text_renderer;
+ g_object_set (renderer, "mode", GTK_CELL_RENDERER_MODE_EDITABLE, NULL);
+ break;
+
+ /* combo renderers */
+ default:
+ if (G_TYPE_IS_ENUM (pspec->value_type)) {
+ priv->renderer = priv->combo_renderer;
+ g_object_set (renderer, "mode", GTK_CELL_RENDERER_MODE_EDITABLE, NULL);
+ }
+ break;
+ }
+
+ /*
+ * Set the content from the objects property.
+ */
+ switch (pspec->value_type) {
+ case G_TYPE_BOOLEAN:
+ {
+ gboolean val;
+
+ g_object_get (priv->object, prop_name, &val, NULL);
+ g_object_set (priv->renderer,
+ "active", val,
+ "activatable", pspec->flags & G_PARAM_WRITABLE ? TRUE : FALSE,
+ NULL);
+ break;
+ }
+
+ case G_TYPE_INT:
+ case G_TYPE_UINT:
+ case G_TYPE_LONG:
+ case G_TYPE_ULONG:
+ case G_TYPE_INT64:
+ case G_TYPE_UINT64:
+ case G_TYPE_FLOAT:
+ case G_TYPE_DOUBLE:
+ get_string_double_repr (priv->object, prop_name, &text, &number);
+ break;
+
+ case G_TYPE_STRING:
+ g_object_get (priv->object, prop_name, &text, NULL);
+ break;
+
+ case G_TYPE_POINTER:
+ {
+ gpointer val;
+
+ g_object_get (priv->object, prop_name, &val, NULL);
+ text = g_strdup_printf ("0x%x", GPOINTER_TO_INT (val));
+ }
+ break;
+
+ default:
+ if (G_TYPE_IS_ENUM (pspec->value_type)) {
+ GParamSpecEnum *pspec_enum;
+ GEnumClass *enum_class;
+ GtkTreeModel *combo_model;
+ GtkTreeIter iter;
+ gint value;
+
+ g_object_get (priv->object, prop_name, &value, NULL);
+
+ pspec_enum = G_PARAM_SPEC_ENUM (pspec);
+ enum_class = pspec_enum->enum_class;
+ combo_model = g_hash_table_lookup (priv->combo_models, prop_name);
+
+ if (combo_model == NULL) {
+ combo_model = GTK_TREE_MODEL (gtk_list_store_new (N_COMBO_COLUMNS, G_TYPE_STRING, G_TYPE_INT));
+ g_hash_table_insert (priv->combo_models, g_strdup (prop_name), combo_model);
+
+ for (guint i = 0; i < enum_class->n_values; i++) {
+ gtk_list_store_append (GTK_LIST_STORE (combo_model), &iter);
+ gtk_list_store_set (GTK_LIST_STORE (combo_model), &iter,
+ COMBO_COLUMN_VALUE_NAME, enum_class->values[i].value_name,
+ COMBO_COLUMN_VALUE, enum_class->values[i].value,
+ -1);
+ }
+ }
+
+
+ for (guint i = 0; i < enum_class->n_values; i++) {
+ if (enum_class->values[i].value == value)
+ text = g_strdup (enum_class->values[i].value_name);
+ }
+
+ g_object_set (priv->renderer,
+ "model", combo_model,
+ "text-column", 0,
+ NULL);
+ }
+ break;
+ }
+
+ if (pspec->flags & G_PARAM_WRITABLE) {
+ if (GTK_IS_CELL_RENDERER_TOGGLE (priv->renderer))
+ g_object_set (priv->renderer, "mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE, NULL);
+ else
+ g_object_set (priv->renderer, "foreground", "#000000", NULL);
+
+ if (GTK_IS_CELL_RENDERER_TEXT (priv->renderer)) {
+ g_object_set (priv->renderer,
+ "editable", TRUE,
+ "mode", GTK_CELL_RENDERER_MODE_EDITABLE,
+ NULL);
+ }
+
+ if (GTK_IS_CELL_RENDERER_SPIN (priv->renderer)) {
+ GtkObject *adjustment = NULL;
+
+#define gtk_typed_adjustment_new(type, pspec, val, step_inc, page_inc) \
+ gtk_adjustment_new (val, ((type *) pspec)->minimum, ((type *) pspec)->maximum, step_inc, page_inc, 0)
+
+ switch (pspec->value_type) {
+ case G_TYPE_INT:
+ adjustment = gtk_typed_adjustment_new (GParamSpecInt, pspec, number, 1, 10);
+ break;
+ case G_TYPE_UINT:
+ adjustment = gtk_typed_adjustment_new (GParamSpecUInt, pspec, number, 1, 10);
+ break;
+ case G_TYPE_LONG:
+ adjustment = gtk_typed_adjustment_new (GParamSpecLong, pspec, number, 1, 10);
+ break;
+ case G_TYPE_ULONG:
+ adjustment = gtk_typed_adjustment_new (GParamSpecULong, pspec, number, 1, 10);
+ break;
+ case G_TYPE_INT64:
+ adjustment = gtk_typed_adjustment_new (GParamSpecInt64, pspec, number, 1, 10);
+ break;
+ case G_TYPE_UINT64:
+ adjustment = gtk_typed_adjustment_new (GParamSpecUInt64, pspec, number, 1, 10);
+ break;
+ case G_TYPE_FLOAT:
+ adjustment = gtk_typed_adjustment_new (GParamSpecFloat, pspec, number, 0.05, 10);
+ break;
+ case G_TYPE_DOUBLE:
+ adjustment = gtk_typed_adjustment_new (GParamSpecDouble, pspec, number, 0.05, 10);
+ break;
+ }
+
+ clear_adjustment (G_OBJECT (priv->renderer));
+ g_object_set (priv->renderer, "adjustment", adjustment, NULL);
+ }
+ }
+ else {
+ g_object_set (priv->renderer, "mode", GTK_CELL_RENDERER_MODE_INERT, NULL);
+
+ if (!GTK_IS_CELL_RENDERER_TOGGLE (priv->renderer))
+ g_object_set (priv->renderer, "foreground", "#aaaaaa", NULL);
+ }
+
+ if (text != NULL) {
+ g_object_set (priv->renderer, "text", text, NULL);
+ g_free (text);
+ }
+}
+
+static gchar *
+get_prop_name_from_tree_model (GtkTreeModel *model, const gchar *path)
+{
+ GtkTreeIter iter;
+ gchar *prop_name = NULL;
+
+ /* TODO: don't assume column 0 to contain the prop name */
+ if (gtk_tree_model_get_iter_from_string (model, &iter, path))
+ gtk_tree_model_get (model, &iter, 0, &prop_name, -1);
+
+ return prop_name;
+}
+
+static void
+egg_property_cell_renderer_toggle_cb (GtkCellRendererToggle *renderer,
+ gchar *path,
+ gpointer user_data)
+{
+ EggPropertyCellRendererPrivate *priv;
+ gchar *prop_name;
+
+ priv = (EggPropertyCellRendererPrivate *) user_data;
+ prop_name = get_prop_name_from_tree_model (GTK_TREE_MODEL (priv->list_store), path);
+
+ if (prop_name != NULL) {
+ gboolean activated;
+
+ g_object_get (priv->object, prop_name, &activated, NULL);
+ g_object_set (priv->object, prop_name, !activated, NULL);
+ g_free (prop_name);
+ }
+}
+
+static void
+egg_property_cell_renderer_text_edited_cb (GtkCellRendererText *renderer,
+ gchar *path,
+ gchar *new_text,
+ gpointer user_data)
+{
+ EggPropertyCellRendererPrivate *priv;
+ gchar *prop_name;
+
+ priv = (EggPropertyCellRendererPrivate *) user_data;
+ prop_name = get_prop_name_from_tree_model (GTK_TREE_MODEL (priv->list_store), path);
+
+ if (prop_name != NULL) {
+ g_object_set (priv->object, prop_name, new_text, NULL);
+ g_free (prop_name);
+ }
+}
+
+static void
+egg_property_cell_renderer_spin_edited_cb (GtkCellRendererText *renderer,
+ gchar *path,
+ gchar *new_text,
+ gpointer user_data)
+{
+ EggPropertyCellRendererPrivate *priv;
+ gchar *prop_name;
+
+ priv = (EggPropertyCellRendererPrivate *) user_data;
+ prop_name = get_prop_name_from_tree_model (GTK_TREE_MODEL (priv->list_store), path);
+
+ if (prop_name != NULL) {
+ GParamSpec *pspec;
+ GValue from = { 0 };
+ GValue to = { 0 };
+
+ pspec = get_pspec_from_object (priv->object, prop_name);
+
+ g_value_init (&from, G_TYPE_DOUBLE);
+ g_value_init (&to, pspec->value_type);
+ g_value_set_double (&from, strtod (new_text, NULL));
+
+ if (g_value_transform (&from, &to))
+ g_object_set_property (priv->object, prop_name, &to);
+ else
+ g_warning ("Could not transform %s to %s\n",
+ g_value_get_string (&from), g_type_name (pspec->value_type));
+
+ g_free (prop_name);
+ }
+}
+
+static void
+egg_property_cell_renderer_changed_cb (GtkCellRendererCombo *combo,
+ gchar *path,
+ GtkTreeIter *new_iter,
+ gpointer user_data)
+{
+ EggPropertyCellRendererPrivate *priv;
+ gchar *prop_name;
+
+ priv = (EggPropertyCellRendererPrivate *) user_data;
+ prop_name = get_prop_name_from_tree_model (GTK_TREE_MODEL (priv->list_store), path);
+
+ if (prop_name != NULL) {
+ GtkTreeModel *combo_model;
+ gchar *value_name;
+ gint value;
+
+ combo_model = g_hash_table_lookup (priv->combo_models, prop_name);
+
+ gtk_tree_model_get (combo_model, new_iter,
+ COMBO_COLUMN_VALUE_NAME, &value_name,
+ COMBO_COLUMN_VALUE, &value,
+ -1);
+
+ g_object_set (priv->object, prop_name, value, NULL);
+ g_free (value_name);
+ g_free (prop_name);
+ }
+}
+
+static void
+egg_property_cell_renderer_get_size (GtkCellRenderer *cell,
+ GtkWidget *widget,
+ GdkRectangle *cell_area,
+ gint *x_offset,
+ gint *y_offset,
+ gint *width,
+ gint *height)
+{
+
+ EggPropertyCellRendererPrivate *priv = EGG_PROPERTY_CELL_RENDERER_GET_PRIVATE (cell);
+ gtk_cell_renderer_get_size (priv->renderer, widget, cell_area, x_offset, y_offset, width, height);
+}
+
+static void
+egg_property_cell_renderer_render (GtkCellRenderer *cell,
+ GdkDrawable *window,
+ GtkWidget *widget,
+ GdkRectangle *background_area,
+ GdkRectangle *cell_area,
+ GdkRectangle *expose_area,
+ GtkCellRendererState flags)
+{
+ EggPropertyCellRendererPrivate *priv = EGG_PROPERTY_CELL_RENDERER_GET_PRIVATE (cell);
+ gtk_cell_renderer_render (priv->renderer, window, widget, background_area, cell_area, expose_area, flags);
+}
+
+static gboolean
+egg_property_cell_renderer_activate (GtkCellRenderer *cell,
+ GdkEvent *event,
+ GtkWidget *widget,
+ const gchar *path,
+ GdkRectangle *background_area,
+ GdkRectangle *cell_area,
+ GtkCellRendererState flags)
+{
+ EggPropertyCellRendererPrivate *priv = EGG_PROPERTY_CELL_RENDERER_GET_PRIVATE (cell);
+ return gtk_cell_renderer_activate (priv->renderer, event, widget, path, background_area, cell_area, flags);
+}
+
+static GtkCellEditable *
+egg_property_cell_renderer_start_editing (GtkCellRenderer *cell,
+ GdkEvent *event,
+ GtkWidget *widget,
+ const gchar *path,
+ GdkRectangle *background_area,
+ GdkRectangle *cell_area,
+ GtkCellRendererState flags)
+{
+ EggPropertyCellRendererPrivate *priv = EGG_PROPERTY_CELL_RENDERER_GET_PRIVATE (cell);
+ return gtk_cell_renderer_start_editing (priv->renderer, event, widget, path, background_area, cell_area, flags);
+}
+
+static void
+egg_property_cell_renderer_dispose (GObject *object)
+{
+ EggPropertyCellRenderer *renderer = EGG_PROPERTY_CELL_RENDERER (object);
+ g_hash_table_destroy (renderer->priv->combo_models);
+}
+
+static void
+egg_property_cell_renderer_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ g_return_if_fail (EGG_IS_PROPERTY_CELL_RENDERER (object));
+ EggPropertyCellRenderer *renderer = EGG_PROPERTY_CELL_RENDERER (object);
+
+ switch (property_id) {
+ case PROP_PROP_NAME:
+ egg_property_cell_renderer_set_renderer (renderer, g_value_get_string (value));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ return;
+ }
+}
+
+static void
+egg_property_cell_renderer_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ g_return_if_fail (EGG_IS_PROPERTY_CELL_RENDERER (object));
+
+ switch (property_id) {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ return;
+ }
+}
+
+static void
+egg_property_cell_renderer_class_init (EggPropertyCellRendererClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+ GtkCellRendererClass *cellrenderer_class = GTK_CELL_RENDERER_CLASS (klass);
+
+ gobject_class->set_property = egg_property_cell_renderer_set_property;
+ gobject_class->get_property = egg_property_cell_renderer_get_property;
+ gobject_class->dispose = egg_property_cell_renderer_dispose;
+
+ cellrenderer_class->render = egg_property_cell_renderer_render;
+ cellrenderer_class->get_size = egg_property_cell_renderer_get_size;
+ cellrenderer_class->activate = egg_property_cell_renderer_activate;
+ cellrenderer_class->start_editing = egg_property_cell_renderer_start_editing;
+
+ egg_property_cell_renderer_properties[PROP_PROP_NAME] =
+ g_param_spec_string("prop-name",
+ "Property name", "Property name", "",
+ G_PARAM_READWRITE);
+
+ g_object_class_install_property(gobject_class, PROP_PROP_NAME, egg_property_cell_renderer_properties[PROP_PROP_NAME]);
+
+ g_type_class_add_private (klass, sizeof (EggPropertyCellRendererPrivate));
+}
+
+static void
+egg_property_cell_renderer_init (EggPropertyCellRenderer *renderer)
+{
+ EggPropertyCellRendererPrivate *priv;
+
+ renderer->priv = priv = EGG_PROPERTY_CELL_RENDERER_GET_PRIVATE (renderer);
+
+ priv->text_renderer = gtk_cell_renderer_text_new ();
+ priv->spin_renderer = gtk_cell_renderer_spin_new ();
+ priv->toggle_renderer = gtk_cell_renderer_toggle_new ();
+ priv->combo_renderer = gtk_cell_renderer_combo_new ();
+ priv->renderer = priv->text_renderer;
+ priv->combo_models = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_object_unref);
+
+ g_object_set (priv->text_renderer,
+ "editable", TRUE,
+ NULL);
+
+ g_object_set (priv->spin_renderer,
+ "editable", TRUE,
+ NULL);
+
+ g_object_set (priv->toggle_renderer,
+ "xalign", 0.0f,
+ "activatable", TRUE,
+ "mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE,
+ NULL);
+
+ g_object_set (priv->combo_renderer,
+ "has-entry", FALSE,
+ NULL);
+
+ g_signal_connect (priv->spin_renderer, "edited",
+ G_CALLBACK (egg_property_cell_renderer_spin_edited_cb), priv);
+
+ g_signal_connect (priv->text_renderer, "edited",
+ G_CALLBACK (egg_property_cell_renderer_text_edited_cb), NULL);
+
+ g_signal_connect (priv->toggle_renderer, "toggled",
+ G_CALLBACK (egg_property_cell_renderer_toggle_cb), priv);
+
+ g_signal_connect (priv->combo_renderer, "changed",
+ G_CALLBACK (egg_property_cell_renderer_changed_cb), priv);
+}