Adding custom action to work with spinbuttons in toolbars

(bzr r1809)

1 files changed, 328 insertions, 0 deletions

diff --git a/src/ege-adjustment-action.cpp b/src/ege-adjustment-action.cpp
new file mode 100644
index 000000000..52037f1e9
--- /dev/null
+++ b/src/ege-adjustment-action.cpp
@@ -0,0 +1,328 @@
+
+
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is EGE Adjustment Action.
+ *
+ * The Initial Developer of the Original Code is
+ * Jon A. Cruz.
+ * Portions created by the Initial Developer are Copyright (C) 2006
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/* Note: this file should be kept compliable as both .cpp and .c */
+
+#include <string.h>
+
+#include <gtk/gtktoolitem.h>
+#include <gtk/gtkspinbutton.h>
+#include <gtk/gtkhbox.h>
+#include <gtk/gtklabel.h>
+#include <gtk/gtkmisc.h>
+
+#include "ege-adjustment-action.h"
+
+
+static void ege_adjustment_action_class_init( EgeAdjustmentActionClass* klass );
+static void ege_adjustment_action_init( EgeAdjustmentAction* action );
+static void ege_adjustment_action_get_property( GObject* obj, guint propId, GValue* value, GParamSpec * pspec );
+static void ege_adjustment_action_set_property( GObject* obj, guint propId, const GValue *value, GParamSpec* pspec );
+
+static GtkWidget* create_menu_item( GtkAction* action );
+static GtkWidget* create_tool_item( GtkAction* action );
+static void connect_proxy( GtkAction *action, GtkWidget *proxy );
+static void disconnect_proxy( GtkAction *action, GtkWidget *proxy );
+
+static gboolean focus_in_cb( GtkWidget *widget, GdkEventKey *event, gpointer data );
+static gboolean keypress_cb( GtkWidget *widget, GdkEventKey *event, gpointer data );
+
+static GtkActionClass* gParentClass = 0;
+
+
+struct _EgeAdjustmentActionPrivate
+{
+    GtkAdjustment* adj;
+    GtkWidget* focusWidget;
+    gdouble lastVal;
+    gboolean keepFocus;
+};
+
+#define EGE_ADJUSTMENT_ACTION_GET_PRIVATE( o ) ( G_TYPE_INSTANCE_GET_PRIVATE( (o), EGE_ADJUSTMENT_ACTION_TYPE, EgeAdjustmentActionPrivate ) )
+
+enum {
+    PROP_ADJUSTMENT = 1,
+    PROP_FOCUS_WIDGET
+};
+
+GType ege_adjustment_action_get_type( void )
+{
+    static GType myType = 0;
+    if ( !myType ) {
+        static const GTypeInfo myInfo = {
+            sizeof( EgeAdjustmentActionClass ),
+            NULL, /* base_init */
+            NULL, /* base_finalize */
+            (GClassInitFunc)ege_adjustment_action_class_init,
+            NULL, /* class_finalize */
+            NULL, /* class_data */
+            sizeof( EgeAdjustmentAction ),
+            0, /* n_preallocs */
+            (GInstanceInitFunc)ege_adjustment_action_init,
+            NULL
+        };
+
+        myType = g_type_register_static( GTK_TYPE_ACTION, "EgeAdjustmentAction", &myInfo, (GTypeFlags)0 );
+    }
+
+    return myType;
+}
+
+
+static void ege_adjustment_action_class_init( EgeAdjustmentActionClass* klass )
+{
+    if ( klass ) {
+        gParentClass = GTK_ACTION_CLASS( g_type_class_peek_parent( klass ) );
+        GObjectClass * objClass = G_OBJECT_CLASS( klass );
+
+        objClass->get_property = ege_adjustment_action_get_property;
+        objClass->set_property = ege_adjustment_action_set_property;
+
+        klass->parent_class.create_menu_item = create_menu_item;
+        klass->parent_class.create_tool_item = create_tool_item;
+        klass->parent_class.connect_proxy = connect_proxy;
+        klass->parent_class.disconnect_proxy = disconnect_proxy;
+
+        g_object_class_install_property( objClass,
+                                         PROP_ADJUSTMENT,
+                                         g_param_spec_pointer( "adjustment",
+                                                               "Adjustment",
+                                                               "The adjustment to change",
+                                                               (GParamFlags)(G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT) ) );
+
+        g_object_class_install_property( objClass,
+                                         PROP_FOCUS_WIDGET,
+                                         g_param_spec_pointer( "focus-widget",
+                                                               "Focus Widget",
+                                                               "The widget to return focus to",
+                                                               (GParamFlags)(G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_CONSTRUCT) ) );
+
+        g_type_class_add_private( klass, sizeof(EgeAdjustmentActionClass) );
+    }
+}
+
+static void ege_adjustment_action_init( EgeAdjustmentAction* action )
+{
+    action->private_data = EGE_ADJUSTMENT_ACTION_GET_PRIVATE( action );
+    action->private_data->adj = 0;
+    action->private_data->focusWidget = 0;
+    action->private_data->lastVal = 0.0;
+    action->private_data->keepFocus = FALSE;
+}
+
+EgeAdjustmentAction* ege_adjustment_action_new( GtkAdjustment* adjustment,
+                                                const gchar *name,
+                                                const gchar *label,
+                                                const gchar *tooltip,
+                                                const gchar *stock_id )
+{
+    GObject* obj = (GObject*)g_object_new( EGE_ADJUSTMENT_ACTION_TYPE,
+                                           "name", name,
+                                           "label", label,
+                                           "tooltip", tooltip,
+                                           "stock_id", stock_id,
+                                           "adjustment", adjustment,
+                                           NULL );
+
+    EgeAdjustmentAction* action = EGE_ADJUSTMENT_ACTION( obj );
+
+    return action;
+}
+
+static void ege_adjustment_action_get_property( GObject* obj, guint propId, GValue* value, GParamSpec * pspec )
+{
+    EgeAdjustmentAction* action = EGE_ADJUSTMENT_ACTION( obj );
+    switch ( propId ) {
+        case PROP_ADJUSTMENT:
+        {
+            g_value_set_pointer( value, action->private_data->adj );
+        }
+        break;
+
+        case PROP_FOCUS_WIDGET:
+        {
+            g_value_set_pointer( value, action->private_data->focusWidget );
+        }
+        break;
+
+        default:
+            G_OBJECT_WARN_INVALID_PROPERTY_ID( obj, propId, pspec );
+    }
+}
+
+void ege_adjustment_action_set_property( GObject* obj, guint propId, const GValue *value, GParamSpec* pspec )
+{
+    EgeAdjustmentAction* action = EGE_ADJUSTMENT_ACTION( obj );
+    switch ( propId ) {
+        case PROP_ADJUSTMENT:
+        {
+            action->private_data->adj = (GtkAdjustment*)g_value_get_pointer( value );
+        }
+        break;
+
+        case PROP_FOCUS_WIDGET:
+        {
+            /* TODO unhook prior */
+            action->private_data->focusWidget = (GtkWidget*)g_value_get_pointer( value );
+        }
+        break;
+
+        default:
+            G_OBJECT_WARN_INVALID_PROPERTY_ID( obj, propId, pspec );
+    }
+}
+
+GtkAdjustment* ege_adjustment_action_get_adjustment( EgeAdjustmentAction* action )
+{
+    g_return_val_if_fail( IS_EGE_ADJUSTMENT_ACTION(action), NULL );
+
+    return action->private_data->adj;
+}
+
+void ege_adjustment_action_set_focuswidget( EgeAdjustmentAction* action, GtkWidget* widget )
+{
+    g_return_if_fail( IS_EGE_ADJUSTMENT_ACTION(action) );
+
+    /* TODO unhook prior */
+
+    action->private_data->focusWidget = widget;
+}
+
+GtkWidget* ege_adjustment_action_get_focuswidget( EgeAdjustmentAction* action )
+{
+    g_return_val_if_fail( IS_EGE_ADJUSTMENT_ACTION(action), NULL );
+
+    return action->private_data->focusWidget;
+}
+
+static GtkWidget* create_menu_item( GtkAction* action )
+{
+    GtkWidget* item = 0;
+
+    item = gParentClass->create_menu_item( action );
+
+    return item;
+}
+
+/* void flippy(GtkAdjustment *adj, GtkWidget *) */
+/* { */
+/*     g_message("flippy  on %p to %f", adj, gtk_adjustment_get_value(adj) ); */
+/* } */
+
+/* void floppy(GtkSpinButton *spin, GtkWidget *) */
+/* { */
+/*     g_message("f__ppy  on %p to %f", spin, gtk_spin_button_get_value(spin) ); */
+/* } */
+
+static GtkWidget* create_tool_item( GtkAction* action )
+{
+    GtkWidget* item = 0;
+
+    if ( IS_EGE_ADJUSTMENT_ACTION(action) ) {
+        GtkWidget* spinbutton = gtk_spin_button_new( EGE_ADJUSTMENT_ACTION(action)->private_data->adj, 0.1, 2 );
+        GtkWidget* hb = gtk_hbox_new( FALSE, 5 );
+        GValue value;
+
+        item = GTK_WIDGET( gtk_tool_item_new() );
+
+        memset( &value, 0, sizeof(value) );
+        g_value_init( &value, G_TYPE_STRING );
+        g_object_get_property( G_OBJECT(action), "label", &value );
+        const gchar* sss = g_value_get_string( &value );
+        GtkWidget* lbl = gtk_label_new( sss ? sss : "wwww" );
+
+        gtk_misc_set_alignment( GTK_MISC(lbl), 1.0, 0.5 );
+
+        gtk_box_pack_start( GTK_BOX(hb), lbl, FALSE, FALSE, 0 );
+        gtk_box_pack_end( GTK_BOX(hb), spinbutton, FALSE, FALSE, 0 );
+        gtk_container_add( GTK_CONTAINER(item), hb );
+
+        g_signal_connect( G_OBJECT(spinbutton), "focus-in-event", G_CALLBACK(focus_in_cb), action );
+        g_signal_connect( G_OBJECT(spinbutton), "key-press-event", G_CALLBACK(keypress_cb), action );
+
+/*      g_signal_connect( G_OBJECT(spinbutton), "value-changed", G_CALLBACK(floppy), action ); */
+/*      g_signal_connect( G_OBJECT(EGE_ADJUSTMENT_ACTION(action)->private_data->adj), "value-changed", G_CALLBACK(flippy), action ); */
+
+
+        gtk_widget_show_all( item );
+    } else {
+        item = gParentClass->create_tool_item( action );
+    }
+
+    return item;
+}
+
+static void connect_proxy( GtkAction *action, GtkWidget *proxy )
+{
+    gParentClass->connect_proxy( action, proxy );
+}
+
+static void disconnect_proxy( GtkAction *action, GtkWidget *proxy )
+{
+    gParentClass->disconnect_proxy( action, proxy );
+}
+
+void ege_adjustment_action_defocus( EgeAdjustmentAction* action )
+{
+    if ( action->private_data->keepFocus ) {
+        action->private_data->keepFocus = FALSE;
+    } else {
+        if ( action->private_data->focusWidget ) {
+            gtk_widget_grab_focus( action->private_data->focusWidget );
+        }
+    }
+}
+
+gboolean focus_in_cb( GtkWidget *widget, GdkEventKey *event, gpointer data )
+{
+    if ( IS_EGE_ADJUSTMENT_ACTION(data) ) {
+        EgeAdjustmentAction* action = EGE_ADJUSTMENT_ACTION( data );
+        action->private_data->lastVal = gtk_spin_button_get_value( GTK_SPIN_BUTTON(widget) );
+    }
+
+    return FALSE; /* report event not consumed */
+}
+
+gboolean keypress_cb( GtkWidget *widget, GdkEventKey *event, gpointer data )
+{
+
+    return FALSE; /* report event not consumed */
+}