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Diffstat (limited to 'libgimpwidgets/gimpunitcombobox.c')
| -rw-r--r-- | libgimpwidgets/gimpunitcombobox.c | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/libgimpwidgets/gimpunitcombobox.c b/libgimpwidgets/gimpunitcombobox.c new file mode 100644 index 0000000..fff5577 --- /dev/null +++ b/libgimpwidgets/gimpunitcombobox.c @@ -0,0 +1,218 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1999 Peter Mattis and Spencer Kimball + * + * gimpunitcombobox.c + * Copyright (C) 2004, 2008 Sven Neumann <sven@gimp.org> + * + * 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 3 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 + * Library 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, see + * <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <gtk/gtk.h> + +#include "gimpwidgetstypes.h" + +#include "gimpunitcombobox.h" +#include "gimpunitstore.h" + + +/** + * SECTION: gimpunitcombobox + * @title: GimpUnitComboBox + * @short_description: A #GtkComboBox to select a #GimpUnit. + * @see_also: #GimpUnit, #GimpUnitStore + * + * #GimpUnitComboBox selects units stored in a #GimpUnitStore. + * It replaces the deprecated #GimpUnitMenu. + **/ + + +static void gimp_unit_combo_box_style_set (GtkWidget *widget, + GtkStyle *prev_style); +static void gimp_unit_combo_box_popup_shown (GtkWidget *widget, + const GParamSpec *pspec); + + +G_DEFINE_TYPE (GimpUnitComboBox, gimp_unit_combo_box, GTK_TYPE_COMBO_BOX) + +#define parent_class gimp_unit_combo_box_parent_class + + +static void +gimp_unit_combo_box_class_init (GimpUnitComboBoxClass *klass) +{ + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); + + widget_class->style_set = gimp_unit_combo_box_style_set; + + gtk_widget_class_install_style_property (widget_class, + g_param_spec_double ("label-scale", + "Label Scale", + "The scale for the text cell renderer", + 0.0, + G_MAXDOUBLE, + 1.0, + GIMP_PARAM_READABLE)); +} + +static void +gimp_unit_combo_box_init (GimpUnitComboBox *combo) +{ + GtkCellLayout *layout = GTK_CELL_LAYOUT (combo); + GtkCellRenderer *cell; + + cell = gtk_cell_renderer_text_new (); + gtk_cell_layout_pack_start (layout, cell, TRUE); + gtk_cell_layout_set_attributes (layout, cell, + "text", GIMP_UNIT_STORE_UNIT_LONG_FORMAT, + NULL); + + g_signal_connect (combo, "notify::popup-shown", + G_CALLBACK (gimp_unit_combo_box_popup_shown), + NULL); +} + +static void +gimp_unit_combo_box_style_set (GtkWidget *widget, + GtkStyle *prev_style) +{ + GtkCellLayout *layout; + GtkCellRenderer *cell; + gdouble scale; + + GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style); + + gtk_widget_style_get (widget, "label-scale", &scale, NULL); + + /* hackedehack ... */ + layout = GTK_CELL_LAYOUT (gtk_bin_get_child (GTK_BIN (widget))); + gtk_cell_layout_clear (layout); + + cell = g_object_new (GTK_TYPE_CELL_RENDERER_TEXT, + "scale", scale, + NULL); + gtk_cell_layout_pack_start (layout, cell, TRUE); + gtk_cell_layout_set_attributes (layout, cell, + "text", GIMP_UNIT_STORE_UNIT_SHORT_FORMAT, + NULL); +} + +static void +gimp_unit_combo_box_popup_shown (GtkWidget *widget, + const GParamSpec *pspec) +{ + GimpUnitStore *store; + gboolean shown; + + g_object_get (widget, + "model", &store, + "popup-shown", &shown, + NULL); + + if (store) + { + if (shown) + _gimp_unit_store_sync_units (store); + + g_object_unref (store); + } +} + + +/** + * gimp_unit_combo_box_new: + * + * Return value: a new #GimpUnitComboBox. + **/ +GtkWidget * +gimp_unit_combo_box_new (void) +{ + GtkWidget *combo_box; + GimpUnitStore *store; + + store = gimp_unit_store_new (0); + + combo_box = g_object_new (GIMP_TYPE_UNIT_COMBO_BOX, + "model", store, + NULL); + + g_object_unref (store); + + return combo_box; +} + +/** + * gimp_unit_combo_box_new_with_model: + * @model: a GimpUnitStore + * + * Return value: a new #GimpUnitComboBox. + **/ +GtkWidget * +gimp_unit_combo_box_new_with_model (GimpUnitStore *model) +{ + return g_object_new (GIMP_TYPE_UNIT_COMBO_BOX, + "model", model, + NULL); +} + +GimpUnit +gimp_unit_combo_box_get_active (GimpUnitComboBox *combo) +{ + GtkTreeIter iter; + gint unit; + + g_return_val_if_fail (GIMP_IS_UNIT_COMBO_BOX (combo), -1); + + gtk_combo_box_get_active_iter (GTK_COMBO_BOX (combo), &iter); + + gtk_tree_model_get (gtk_combo_box_get_model (GTK_COMBO_BOX (combo)), &iter, + GIMP_UNIT_STORE_UNIT, &unit, + -1); + + return (GimpUnit) unit; +} + +void +gimp_unit_combo_box_set_active (GimpUnitComboBox *combo, + GimpUnit unit) +{ + GtkTreeModel *model; + GtkTreeIter iter; + gboolean iter_valid; + + g_return_if_fail (GIMP_IS_UNIT_COMBO_BOX (combo)); + + model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo)); + + _gimp_unit_store_sync_units (GIMP_UNIT_STORE (model)); + + for (iter_valid = gtk_tree_model_get_iter_first (model, &iter); + iter_valid; + iter_valid = gtk_tree_model_iter_next (model, &iter)) + { + gint iter_unit; + + gtk_tree_model_get (model, &iter, + GIMP_UNIT_STORE_UNIT, &iter_unit, + -1); + + if (unit == (GimpUnit) iter_unit) + { + gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo), &iter); + break; + } + } +} |