mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-12-25 05:01:09 +00:00
GtkCellRendererAccel: rework the grabbing
Grab keyboard/mouse on the toplevel, and grab the focus to the cell editable, so we actually see the key events.
This commit is contained in:
Matthias Clasen
parent
fcb69e110b
commit
bdd1871cba
@ -35,16 +35,14 @@
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* @Short_description: Renders a keyboard accelerator in a cell
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* @Title: GtkCellRendererAccel
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*
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* #GtkCellRendererAccel displays a keyboard accelerator (i.e. a
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* key combination like `Control + a`.
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* If the cell renderer is editable, the accelerator can be changed by
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* simply typing the new combination.
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* #GtkCellRendererAccel displays a keyboard accelerator (i.e. a key
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* combination like `Control + a`). If the cell renderer is editable,
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* the accelerator can be changed by simply typing the new combination.
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*
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* The #GtkCellRendererAccel cell renderer was added in GTK+ 2.10.
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*/
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static void gtk_cell_renderer_accel_get_property (GObject *object,
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guint param_id,
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GValue *value,
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@ -70,6 +68,9 @@ static gchar *convert_keysym_state_to_string (GtkCellRendererAccel *accel,
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guint keysym,
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GdkModifierType mask,
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guint keycode);
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static GtkWidget *gtk_cell_editable_event_box_new (GtkCellRenderer *cell,
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GtkCellRendererAccelMode mode,
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const gchar *path);
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enum {
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ACCEL_EDITED,
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@ -78,32 +79,27 @@ enum {
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};
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enum {
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PROP_0,
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PROP_ACCEL_KEY,
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PROP_ACCEL_KEY = 1,
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PROP_ACCEL_MODS,
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PROP_KEYCODE,
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PROP_ACCEL_MODE
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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struct _GtkCellRendererAccelPrivate
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{
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GtkWidget *edit_widget;
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GtkWidget *grab_widget;
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GtkWidget *sizing_label;
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GtkCellRendererAccelMode accel_mode;
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GdkModifierType accel_mods;
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guint accel_key;
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guint keycode;
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GdkDevice *grab_keyboard;
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GdkDevice *grab_pointer;
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GtkCellRendererAccelMode accel_mode;
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GdkModifierType accel_mods;
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guint accel_key;
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guint keycode;
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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G_DEFINE_TYPE_WITH_PRIVATE (GtkCellRendererAccel, gtk_cell_renderer_accel, GTK_TYPE_CELL_RENDERER_TEXT)
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static void
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@ -430,16 +426,165 @@ gtk_cell_renderer_accel_get_preferred_width (GtkCellRenderer *cell,
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*natural_size = MAX (*natural_size, nat_req.width);
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}
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static gboolean
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grab_key_callback (GtkWidget *widget,
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GdkEventKey *event,
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GtkCellRendererAccel *accel)
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static GtkCellEditable *
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gtk_cell_renderer_accel_start_editing (GtkCellRenderer *cell,
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GdkEvent *event,
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GtkWidget *widget,
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const gchar *path,
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const GdkRectangle *background_area,
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const GdkRectangle *cell_area,
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GtkCellRendererState flags)
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{
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GtkCellRendererAccelPrivate *priv;
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GtkCellRendererText *celltext;
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GtkCellRendererAccel *accel;
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GtkStyleContext *context;
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GdkRGBA color;
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GtkWidget *label;
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GtkWidget *eventbox;
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gboolean editable;
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GdkDevice *device, *keyboard, *pointer;
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guint32 timestamp;
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GdkWindow *window;
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celltext = GTK_CELL_RENDERER_TEXT (cell);
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accel = GTK_CELL_RENDERER_ACCEL (cell);
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priv = accel->priv;
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/* If the cell isn't editable we return NULL. */
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g_object_get (celltext, "editable", &editable, NULL);
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if (!editable)
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return NULL;
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window = gtk_widget_get_window (gtk_widget_get_toplevel (widget));
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if (event)
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device = gdk_event_get_device (event);
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else
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device = gtk_get_current_event_device ();
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if (!device || !window)
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return NULL;
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if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
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{
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keyboard = device;
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pointer = gdk_device_get_associated_device (device);
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}
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else
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{
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pointer = device;
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keyboard = gdk_device_get_associated_device (device);
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}
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timestamp = gdk_event_get_time (event);
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if (gdk_device_grab (keyboard, window,
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GDK_OWNERSHIP_WINDOW, FALSE,
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GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
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NULL, timestamp) != GDK_GRAB_SUCCESS)
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return NULL;
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if (gdk_device_grab (pointer, window,
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GDK_OWNERSHIP_WINDOW, FALSE,
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GDK_BUTTON_PRESS_MASK,
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NULL, timestamp) != GDK_GRAB_SUCCESS)
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{
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gdk_device_ungrab (keyboard, timestamp);
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return NULL;
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}
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priv->grab_keyboard = keyboard;
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priv->grab_pointer = pointer;
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eventbox = gtk_cell_editable_event_box_new (cell, priv->accel_mode, path);
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label = gtk_label_new (NULL);
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gtk_widget_set_halign (label, GTK_ALIGN_START);
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gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
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context = gtk_widget_get_style_context (widget);
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gtk_style_context_get_background_color (context, GTK_STATE_FLAG_SELECTED, &color);
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gtk_widget_override_background_color (eventbox, 0, &color);
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gtk_style_context_get_color (context, GTK_STATE_FLAG_SELECTED, &color);
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gtk_widget_override_color (label, 0, &color);
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/* This label is displayed in a treeview cell displaying
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* an accelerator when the cell is clicked to change the
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* acelerator.
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*/
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gtk_label_set_text (GTK_LABEL (label), _("New accelerator…"));
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gtk_container_add (GTK_CONTAINER (eventbox), label);
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gtk_widget_show_all (eventbox);
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gtk_widget_grab_focus (eventbox);
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return GTK_CELL_EDITABLE (eventbox);
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}
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static void
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gtk_cell_renderer_accel_ungrab (GtkCellRendererAccel *accel)
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{
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GtkCellRendererAccelPrivate *priv = accel->priv;
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if (priv->grab_keyboard)
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{
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gdk_device_ungrab (priv->grab_keyboard, GDK_CURRENT_TIME);
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gdk_device_ungrab (priv->grab_pointer, GDK_CURRENT_TIME);
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priv->grab_keyboard = NULL;
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priv->grab_pointer = NULL;
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}
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}
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/* --------------------------------- */
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typedef struct _GtkCellEditableEventBox GtkCellEditableEventBox;
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typedef GtkEventBoxClass GtkCellEditableEventBoxClass;
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struct _GtkCellEditableEventBox
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{
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GtkEventBox box;
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gboolean editing_canceled;
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GtkCellRendererAccelMode accel_mode;
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gchar *path;
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GtkCellRenderer *cell;
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};
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enum {
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PROP_EDITING_CANCELED = 1,
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PROP_MODE,
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PROP_PATH
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};
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GType gtk_cell_editable_event_box_get_type (void);
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static void gtk_cell_editable_event_box_cell_editable_init (GtkCellEditableIface *iface);
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G_DEFINE_TYPE_WITH_CODE (GtkCellEditableEventBox, gtk_cell_editable_event_box, GTK_TYPE_EVENT_BOX,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_EDITABLE, gtk_cell_editable_event_box_cell_editable_init))
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static void
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gtk_cell_editable_event_box_start_editing (GtkCellEditable *cell_editable,
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GdkEvent *event)
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{
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/* do nothing, because we are pointless */
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}
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static void
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gtk_cell_editable_event_box_cell_editable_init (GtkCellEditableIface *iface)
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{
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iface->start_editing = gtk_cell_editable_event_box_start_editing;
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}
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static gboolean
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gtk_cell_editable_event_box_key_press_event (GtkWidget *widget,
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GdkEventKey *event)
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{
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GtkCellEditableEventBox *box = (GtkCellEditableEventBox*)widget;
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GdkModifierType accel_mods = 0;
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guint accel_key;
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guint keyval;
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gchar *path;
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gboolean edited;
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gboolean cleared;
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GdkModifierType consumed_modifiers;
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@ -482,7 +627,7 @@ grab_key_callback (GtkWidget *widget,
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/* Filter consumed modifiers
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*/
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if (priv->accel_mode == GTK_CELL_RENDERER_ACCEL_MODE_GTK)
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if (box->accel_mode == GTK_CELL_RENDERER_ACCEL_MODE_GTK)
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accel_mods &= ~consumed_modifiers;
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/* Put shift back if it changed the case of the key, not otherwise.
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@ -494,103 +639,50 @@ grab_key_callback (GtkWidget *widget,
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{
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switch (keyval)
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{
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case GDK_KEY_Escape:
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goto out; /* cancel */
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case GDK_KEY_BackSpace:
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/* clear the accelerator on Backspace */
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cleared = TRUE;
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/* fall thru */
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case GDK_KEY_Escape:
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goto out;
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default:
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break;
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}
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}
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if (priv->accel_mode == GTK_CELL_RENDERER_ACCEL_MODE_GTK)
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{
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if (!gtk_accelerator_valid (accel_key, accel_mods))
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if (box->accel_mode == GTK_CELL_RENDERER_ACCEL_MODE_GTK &&
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!gtk_accelerator_valid (accel_key, accel_mods))
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{
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gtk_widget_error_bell (widget);
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return TRUE;
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}
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}
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edited = TRUE;
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out:
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gdk_device_ungrab (priv->grab_keyboard, event->time);
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gdk_device_ungrab (priv->grab_pointer, event->time);
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gtk_cell_renderer_accel_ungrab (GTK_CELL_RENDERER_ACCEL (box->cell));
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path = g_strdup (g_object_get_data (G_OBJECT (priv->edit_widget), "gtk-cell-renderer-text"));
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gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (priv->edit_widget));
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gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (priv->edit_widget));
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priv->edit_widget = NULL;
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priv->grab_widget = NULL;
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priv->grab_keyboard = NULL;
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priv->grab_pointer = NULL;
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gtk_cell_editable_editing_done (GTK_CELL_EDITABLE (widget));
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gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE (widget));
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if (edited)
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g_signal_emit (accel, signals[ACCEL_EDITED], 0, path,
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g_signal_emit (box->cell, signals[ACCEL_EDITED], 0, box->path,
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accel_key, accel_mods, event->hardware_keycode);
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else if (cleared)
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g_signal_emit (accel, signals[ACCEL_CLEARED], 0, path);
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g_free (path);
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g_signal_emit (box->cell, signals[ACCEL_CLEARED], 0, box->path);
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return TRUE;
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}
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static void
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ungrab_stuff (GtkWidget *widget,
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GtkCellRendererAccel *accel)
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gtk_cell_editable_event_box_unrealize (GtkWidget *widget)
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{
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GtkCellRendererAccelPrivate *priv = accel->priv;
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GtkCellEditableEventBox *box = (GtkCellEditableEventBox*)widget;
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gdk_device_ungrab (priv->grab_keyboard, GDK_CURRENT_TIME);
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gdk_device_ungrab (priv->grab_pointer, GDK_CURRENT_TIME);
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gtk_cell_renderer_accel_ungrab (GTK_CELL_RENDERER_ACCEL (box->cell));
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priv->grab_keyboard = NULL;
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priv->grab_pointer = NULL;
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g_signal_handlers_disconnect_by_func (priv->grab_widget,
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G_CALLBACK (grab_key_callback),
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accel);
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GTK_WIDGET_CLASS (gtk_cell_editable_event_box_parent_class)->unrealize (widget);
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}
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static void
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_gtk_cell_editable_event_box_start_editing (GtkCellEditable *cell_editable,
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GdkEvent *event)
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{
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/* do nothing, because we are pointless */
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}
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static void
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_gtk_cell_editable_event_box_cell_editable_init (GtkCellEditableIface *iface)
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{
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iface->start_editing = _gtk_cell_editable_event_box_start_editing;
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}
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typedef struct _GtkCellEditableEventBox GtkCellEditableEventBox;
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typedef GtkEventBoxClass GtkCellEditableEventBoxClass;
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struct _GtkCellEditableEventBox
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{
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GtkEventBox box;
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gboolean editing_canceled;
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};
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GType _gtk_cell_editable_event_box_get_type (void);
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G_DEFINE_TYPE_WITH_CODE (GtkCellEditableEventBox, _gtk_cell_editable_event_box, GTK_TYPE_EVENT_BOX, { \
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G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_EDITABLE, _gtk_cell_editable_event_box_cell_editable_init) \
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})
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enum {
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PROP_ZERO,
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PROP_EDITING_CANCELED
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};
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static void
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gtk_cell_editable_event_box_set_property (GObject *object,
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guint prop_id,
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@ -604,6 +696,12 @@ gtk_cell_editable_event_box_set_property (GObject *object,
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case PROP_EDITING_CANCELED:
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box->editing_canceled = g_value_get_boolean (value);
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break;
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case PROP_MODE:
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box->accel_mode = g_value_get_enum (value);
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break;
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case PROP_PATH:
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box->path = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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@ -623,6 +721,12 @@ gtk_cell_editable_event_box_get_property (GObject *object,
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case PROP_EDITING_CANCELED:
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g_value_set_boolean (value, box->editing_canceled);
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break;
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case PROP_MODE:
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g_value_set_enum (value, box->accel_mode);
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break;
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case PROP_PATH:
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g_value_set_string (value, box->path);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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@ -630,132 +734,61 @@ gtk_cell_editable_event_box_get_property (GObject *object,
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}
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static void
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_gtk_cell_editable_event_box_class_init (GtkCellEditableEventBoxClass *class)
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gtk_cell_editable_event_box_finalize (GObject *object)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (class);
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GtkCellEditableEventBox *box = (GtkCellEditableEventBox*)object;
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gobject_class->set_property = gtk_cell_editable_event_box_set_property;
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gobject_class->get_property = gtk_cell_editable_event_box_get_property;
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g_free (box->path);
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g_object_class_override_property (gobject_class,
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PROP_EDITING_CANCELED,
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"editing-canceled");
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G_OBJECT_CLASS (gtk_cell_editable_event_box_parent_class)->finalize (object);
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}
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static void
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_gtk_cell_editable_event_box_init (GtkCellEditableEventBox *box)
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gtk_cell_editable_event_box_class_init (GtkCellEditableEventBoxClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
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object_class->finalize = gtk_cell_editable_event_box_finalize;
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object_class->set_property = gtk_cell_editable_event_box_set_property;
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object_class->get_property = gtk_cell_editable_event_box_get_property;
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widget_class->key_press_event = gtk_cell_editable_event_box_key_press_event;
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widget_class->unrealize = gtk_cell_editable_event_box_unrealize;
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g_object_class_override_property (object_class,
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PROP_EDITING_CANCELED,
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"editing-canceled");
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g_object_class_install_property (object_class, PROP_MODE,
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g_param_spec_enum ("accel-mode", NULL, NULL,
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GTK_TYPE_CELL_RENDERER_ACCEL_MODE,
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GTK_CELL_RENDERER_ACCEL_MODE_GTK,
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GTK_PARAM_READWRITE));
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g_object_class_install_property (object_class, PROP_PATH,
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g_param_spec_string ("path", NULL, NULL,
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NULL, GTK_PARAM_READWRITE));
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}
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static GtkCellEditable *
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gtk_cell_renderer_accel_start_editing (GtkCellRenderer *cell,
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GdkEvent *event,
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GtkWidget *widget,
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const gchar *path,
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||||
const GdkRectangle *background_area,
|
||||
const GdkRectangle *cell_area,
|
||||
GtkCellRendererState flags)
|
||||
static void
|
||||
gtk_cell_editable_event_box_init (GtkCellEditableEventBox *box)
|
||||
{
|
||||
GtkCellRendererAccelPrivate *priv;
|
||||
GtkCellRendererText *celltext;
|
||||
GtkCellRendererAccel *accel;
|
||||
GtkStyleContext *context;
|
||||
GdkRGBA color;
|
||||
GtkWidget *label;
|
||||
GtkWidget *eventbox;
|
||||
GdkDevice *device, *keyb, *pointer;
|
||||
GdkWindow *window;
|
||||
gboolean editable;
|
||||
guint32 time;
|
||||
|
||||
celltext = GTK_CELL_RENDERER_TEXT (cell);
|
||||
accel = GTK_CELL_RENDERER_ACCEL (cell);
|
||||
priv = accel->priv;
|
||||
|
||||
/* If the cell isn't editable we return NULL. */
|
||||
g_object_get (celltext, "editable", &editable, NULL);
|
||||
if (editable == FALSE)
|
||||
return NULL;
|
||||
|
||||
window = gtk_widget_get_window (widget);
|
||||
context = gtk_widget_get_style_context (widget);
|
||||
|
||||
g_return_val_if_fail (window != NULL, NULL);
|
||||
|
||||
if (event)
|
||||
device = gdk_event_get_device (event);
|
||||
else
|
||||
device = gtk_get_current_event_device ();
|
||||
|
||||
if (!device)
|
||||
return NULL;
|
||||
|
||||
if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
|
||||
{
|
||||
keyb = device;
|
||||
pointer = gdk_device_get_associated_device (device);
|
||||
}
|
||||
else
|
||||
{
|
||||
pointer = device;
|
||||
keyb = gdk_device_get_associated_device (device);
|
||||
gtk_widget_set_can_focus (GTK_WIDGET (box), TRUE);
|
||||
}
|
||||
|
||||
time = gdk_event_get_time (event);
|
||||
|
||||
if (gdk_device_grab (keyb, window,
|
||||
GDK_OWNERSHIP_WINDOW, FALSE,
|
||||
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
|
||||
NULL, time) != GDK_GRAB_SUCCESS)
|
||||
return NULL;
|
||||
|
||||
if (gdk_device_grab (pointer, window,
|
||||
GDK_OWNERSHIP_WINDOW, FALSE,
|
||||
GDK_BUTTON_PRESS_MASK,
|
||||
NULL, time) != GDK_GRAB_SUCCESS)
|
||||
static GtkWidget *
|
||||
gtk_cell_editable_event_box_new (GtkCellRenderer *cell,
|
||||
GtkCellRendererAccelMode mode,
|
||||
const gchar *path)
|
||||
{
|
||||
gdk_device_ungrab (keyb, time);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
priv->grab_keyboard = keyb;
|
||||
priv->grab_pointer = pointer;
|
||||
priv->grab_widget = widget;
|
||||
|
||||
g_signal_connect (G_OBJECT (widget), "key-press-event",
|
||||
G_CALLBACK (grab_key_callback),
|
||||
accel);
|
||||
|
||||
eventbox = g_object_new (_gtk_cell_editable_event_box_get_type (), NULL);
|
||||
priv->edit_widget = eventbox;
|
||||
g_object_add_weak_pointer (G_OBJECT (priv->edit_widget),
|
||||
(gpointer) &priv->edit_widget);
|
||||
|
||||
label = gtk_label_new (NULL);
|
||||
gtk_widget_set_halign (label, GTK_ALIGN_START);
|
||||
gtk_widget_set_valign (label, GTK_ALIGN_CENTER);
|
||||
|
||||
gtk_style_context_get_background_color (context, GTK_STATE_FLAG_SELECTED, &color);
|
||||
gtk_widget_override_background_color (eventbox, 0, &color);
|
||||
|
||||
gtk_style_context_get_color (context, GTK_STATE_FLAG_SELECTED, &color);
|
||||
gtk_widget_override_color (label, 0, &color);
|
||||
|
||||
/* This label is displayed in a treeview cell displaying
|
||||
* an accelerator when the cell is clicked to change the
|
||||
* acelerator.
|
||||
*/
|
||||
gtk_label_set_text (GTK_LABEL (label), _("New accelerator…"));
|
||||
|
||||
gtk_container_add (GTK_CONTAINER (eventbox), label);
|
||||
|
||||
g_object_set_data_full (G_OBJECT (priv->edit_widget), "gtk-cell-renderer-text",
|
||||
g_strdup (path), g_free);
|
||||
|
||||
gtk_widget_show_all (priv->edit_widget);
|
||||
|
||||
g_signal_connect (priv->edit_widget, "unrealize",
|
||||
G_CALLBACK (ungrab_stuff), accel);
|
||||
|
||||
return GTK_CELL_EDITABLE (priv->edit_widget);
|
||||
GtkCellEditableEventBox *box;
|
||||
|
||||
box = g_object_new (gtk_cell_editable_event_box_get_type (),
|
||||
"accel-mode", mode,
|
||||
"path", path,
|
||||
NULL);
|
||||
box->cell = cell;
|
||||
|
||||
return GTK_WIDGET (box);
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user