gtk2/gtk/gtktexthandle.c
Matthias Clasen 5b78a3048f gizmo: Add a contains_func
Let GtkGizmo override the contains() implementation.
Update all callers to pass NULL for the contains_func.
2019-04-07 15:47:24 +00:00

800 lines
25 KiB
C

/* GTK - The GIMP Toolkit
* Copyright © 2012 Carlos Garnacho <carlosg@gnome.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 2 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtkprivatetypebuiltins.h"
#include "gtktexthandleprivate.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
#include "gtkwindowprivate.h"
#include "gtkcssnodeprivate.h"
#include "gtkwidgetprivate.h"
#include "gtkgizmoprivate.h"
#include "gtkrendericonprivate.h"
#include "gtkintl.h"
#include <gtk/gtk.h>
typedef struct _GtkTextHandlePrivate GtkTextHandlePrivate;
typedef struct _HandleWindow HandleWindow;
enum {
DRAG_STARTED,
HANDLE_DRAGGED,
DRAG_FINISHED,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_PARENT
};
struct _HandleWindow
{
GtkWidget *widget;
GdkRectangle pointing_to;
GtkBorder border;
gint dx;
gint dy;
GtkTextDirection dir;
guint dragged : 1;
guint mode_visible : 1;
guint user_visible : 1;
guint has_point : 1;
};
struct _GtkTextHandlePrivate
{
HandleWindow windows[2];
GtkWidget *toplevel;
GtkWidget *parent;
GtkScrollable *parent_scrollable;
GtkAdjustment *vadj;
GtkAdjustment *hadj;
guint hierarchy_changed_id;
guint scrollable_notify_id;
guint mode : 2;
};
G_DEFINE_TYPE_WITH_PRIVATE (GtkTextHandle, _gtk_text_handle, G_TYPE_OBJECT)
static guint signals[LAST_SIGNAL] = { 0 };
static void _gtk_text_handle_update (GtkTextHandle *handle,
GtkTextHandlePosition pos);
static void
_gtk_text_handle_get_size (GtkTextHandle *handle,
GtkTextHandlePosition pos,
gint *width,
gint *height)
{
GtkTextHandlePrivate *priv = handle->priv;
GtkWidget *widget = priv->windows[pos].widget;
GtkStyleContext *context;
context = gtk_widget_get_style_context (widget);
gtk_style_context_get (context,
"min-width", width,
"min-height", height,
NULL);
}
static gint
_text_handle_pos_from_widget (GtkTextHandle *handle,
GtkWidget *widget)
{
GtkTextHandlePrivate *priv = handle->priv;
if (widget == priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].widget)
return GTK_TEXT_HANDLE_POSITION_SELECTION_START;
else if (widget == priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_END].widget)
return GTK_TEXT_HANDLE_POSITION_SELECTION_END;
else
return -1;
}
static void
handle_drag_begin (GtkGestureDrag *gesture,
gdouble x,
gdouble y,
GtkTextHandle *handle)
{
GtkTextHandlePrivate *priv = handle->priv;
GtkWidget *widget;
gint pos;
widget = gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture));
pos = _text_handle_pos_from_widget (handle, widget);
if (pos == GTK_TEXT_HANDLE_POSITION_CURSOR &&
priv->mode == GTK_TEXT_HANDLE_MODE_CURSOR)
x -= gtk_widget_get_width (widget) / 2;
else if ((pos == GTK_TEXT_HANDLE_POSITION_CURSOR &&
priv->windows[pos].dir == GTK_TEXT_DIR_RTL) ||
(pos == GTK_TEXT_HANDLE_POSITION_SELECTION_START &&
priv->windows[pos].dir != GTK_TEXT_DIR_RTL))
x -= gtk_widget_get_width (widget);
y += priv->windows[pos].border.top / 2;
priv->windows[pos].dx = x;
priv->windows[pos].dy = y;
priv->windows[pos].dragged = TRUE;
g_signal_emit (handle, signals[DRAG_STARTED], 0, pos);
}
static void
handle_drag_update (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkTextHandle *handle)
{
GtkTextHandlePrivate *priv = handle->priv;
gdouble start_x, start_y;
gint pos, x, y;
pos = _text_handle_pos_from_widget (handle,
gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)));
gtk_gesture_drag_get_start_point (gesture, &start_x, &start_y);
gtk_widget_translate_coordinates (priv->windows[pos].widget, priv->parent,
start_x + offset_x - priv->windows[pos].dx,
start_y + offset_y - priv->windows[pos].dy,
&x, &y);
g_signal_emit (handle, signals[HANDLE_DRAGGED], 0, pos, x, y);
}
static void
handle_drag_end (GtkGestureDrag *gesture,
gdouble offset_x,
gdouble offset_y,
GtkTextHandle *handle)
{
GtkTextHandlePrivate *priv = handle->priv;
gint pos;
pos = _text_handle_pos_from_widget (handle,
gtk_event_controller_get_widget (GTK_EVENT_CONTROLLER (gesture)));
g_signal_emit (handle, signals[DRAG_FINISHED], 0, pos);
priv->windows[pos].dragged = FALSE;
}
static void
snapshot_func (GtkGizmo *gizmo,
GtkSnapshot *snapshot)
{
GtkCssStyle *style = gtk_css_node_get_style (gtk_widget_get_css_node (GTK_WIDGET (gizmo)));
gtk_css_style_snapshot_icon (style,
snapshot,
gtk_widget_get_width (GTK_WIDGET (gizmo)),
gtk_widget_get_height (GTK_WIDGET (gizmo)),
GTK_CSS_IMAGE_BUILTIN_HANDLE);
}
static GtkWidget *
_gtk_text_handle_ensure_widget (GtkTextHandle *handle,
GtkTextHandlePosition pos)
{
GtkTextHandlePrivate *priv;
priv = handle->priv;
if (!priv->windows[pos].widget)
{
GtkWidget *widget, *window;
GtkStyleContext *context;
GtkEventController *controller;
widget = gtk_gizmo_new (I_("cursor-handle"), NULL, NULL, snapshot_func, NULL);
gtk_widget_set_direction (widget, priv->windows[pos].dir);
controller = GTK_EVENT_CONTROLLER (gtk_gesture_drag_new ());
g_signal_connect (controller, "drag-begin",
G_CALLBACK (handle_drag_begin), handle);
g_signal_connect (controller, "drag-update",
G_CALLBACK (handle_drag_update), handle);
g_signal_connect (controller, "drag-end",
G_CALLBACK (handle_drag_end), handle);
gtk_widget_add_controller (widget, controller);
priv->windows[pos].widget = g_object_ref_sink (widget);
priv->toplevel = window = gtk_widget_get_ancestor (priv->parent, GTK_TYPE_WINDOW);
_gtk_window_add_popover (GTK_WINDOW (window), widget, priv->parent, FALSE);
context = gtk_widget_get_style_context (widget);
gtk_style_context_set_parent (context, gtk_widget_get_style_context (priv->parent));
if (pos == GTK_TEXT_HANDLE_POSITION_SELECTION_END)
{
gtk_style_context_add_class (context, GTK_STYLE_CLASS_BOTTOM);
if (priv->mode == GTK_TEXT_HANDLE_MODE_CURSOR)
gtk_style_context_add_class (context, GTK_STYLE_CLASS_INSERTION_CURSOR);
}
else
gtk_style_context_add_class (context, GTK_STYLE_CLASS_TOP);
}
return priv->windows[pos].widget;
}
static void
_handle_update_child_visible (GtkTextHandle *handle,
GtkTextHandlePosition pos)
{
HandleWindow *handle_window;
GtkTextHandlePrivate *priv;
cairo_rectangle_int_t rect;
GtkAllocation allocation;
GtkWidget *parent;
priv = handle->priv;
handle_window = &priv->windows[pos];
if (!priv->parent_scrollable)
{
gtk_widget_set_child_visible (handle_window->widget, TRUE);
return;
}
parent = gtk_widget_get_parent (GTK_WIDGET (priv->parent_scrollable));
rect = handle_window->pointing_to;
gtk_widget_translate_coordinates (priv->parent, parent,
rect.x, rect.y, &rect.x, &rect.y);
gtk_widget_get_allocation (GTK_WIDGET (parent), &allocation);
if (rect.x < 0 || rect.x + rect.width > allocation.width ||
rect.y < 0 || rect.y + rect.height > allocation.height)
gtk_widget_set_child_visible (handle_window->widget, FALSE);
else
gtk_widget_set_child_visible (handle_window->widget, TRUE);
}
static void
_gtk_text_handle_update (GtkTextHandle *handle,
GtkTextHandlePosition pos)
{
GtkTextHandlePrivate *priv;
HandleWindow *handle_window;
GtkBorder *border;
priv = handle->priv;
handle_window = &priv->windows[pos];
border = &handle_window->border;
if (!priv->parent || !gtk_widget_is_drawable (priv->parent))
return;
if (handle_window->has_point &&
handle_window->mode_visible && handle_window->user_visible)
{
cairo_rectangle_int_t rect;
gint width, height;
GtkWidget *window;
GtkAllocation alloc;
gint w, h;
_gtk_text_handle_ensure_widget (handle, pos);
_gtk_text_handle_get_size (handle, pos, &width, &height);
border->top = height;
border->bottom = height;
border->left = width;
border->right = width;
rect.x = handle_window->pointing_to.x;
rect.y = handle_window->pointing_to.y + handle_window->pointing_to.height - handle_window->border.top;
rect.width = width;
rect.height = 0;
_handle_update_child_visible (handle, pos);
window = gtk_widget_get_parent (handle_window->widget);
gtk_widget_translate_coordinates (priv->parent, window,
rect.x, rect.y, &rect.x, &rect.y);
if (pos == GTK_TEXT_HANDLE_POSITION_CURSOR &&
priv->mode == GTK_TEXT_HANDLE_MODE_CURSOR)
rect.x -= rect.width / 2;
else if ((pos == GTK_TEXT_HANDLE_POSITION_CURSOR &&
handle_window->dir == GTK_TEXT_DIR_RTL) ||
(pos == GTK_TEXT_HANDLE_POSITION_SELECTION_START &&
handle_window->dir != GTK_TEXT_DIR_RTL))
rect.x -= rect.width;
/* The goal is to make the window 3 times as wide and high. The handle
* will be rendered in the center, making the rest an invisible border.
* If we hit the edge of the toplevel, we shrink the border to avoid
* mispositioning the handle, if at all possible. This calculation uses
* knowledge about how popover_get_rect() works.
*/
gtk_widget_get_allocation (window, &alloc);
w = width + border->left + border->right;
h = height + border->top + border->bottom;
if (rect.x + rect.width/2 - w/2 < alloc.x)
border->left = MAX (0, border->left - (alloc.x - (rect.x + rect.width/2 - w/2)));
if (rect.y + rect.height/2 - h/2 < alloc.y)
border->top = MAX (0, border->top - (alloc.y - (rect.y + rect.height/2 - h/2)));
if (rect.x + rect.width/2 + w/2 > alloc.x + alloc.width)
border->right = MAX (0, border->right - (rect.x + rect.width/2 + w/2 - (alloc.x + alloc.width)));
if (rect.y + rect.height/2 + h/2 > alloc.y + alloc.height)
border->bottom = MAX (0, border->bottom - (rect.y + rect.height/2 + h/2 - (alloc.y + alloc.height)));
width += border->left + border->right;
height += border->top + border->bottom;
gtk_widget_set_size_request (handle_window->widget, width, height);
gtk_widget_show (handle_window->widget);
_gtk_window_raise_popover (GTK_WINDOW (window), handle_window->widget);
_gtk_window_set_popover_position (GTK_WINDOW (window),
handle_window->widget,
GTK_POS_BOTTOM, &rect);
}
else if (handle_window->widget)
gtk_widget_hide (handle_window->widget);
}
static void
adjustment_changed_cb (GtkAdjustment *adjustment,
GtkTextHandle *handle)
{
_gtk_text_handle_update (handle, GTK_TEXT_HANDLE_POSITION_SELECTION_START);
_gtk_text_handle_update (handle, GTK_TEXT_HANDLE_POSITION_SELECTION_END);
}
static void
_gtk_text_handle_set_scrollable (GtkTextHandle *handle,
GtkScrollable *scrollable)
{
GtkTextHandlePrivate *priv;
priv = handle->priv;
if (priv->vadj)
{
g_signal_handlers_disconnect_by_data (priv->vadj, handle);
g_clear_object (&priv->vadj);
}
if (priv->hadj)
{
g_signal_handlers_disconnect_by_data (priv->hadj, handle);
g_clear_object (&priv->hadj);
}
if (priv->parent_scrollable)
g_object_remove_weak_pointer (G_OBJECT (priv->parent_scrollable), (gpointer *) &priv->parent_scrollable);
priv->parent_scrollable = scrollable;
if (scrollable)
{
g_object_add_weak_pointer (G_OBJECT (priv->parent_scrollable), (gpointer *) &priv->parent_scrollable);
priv->vadj = gtk_scrollable_get_vadjustment (scrollable);
priv->hadj = gtk_scrollable_get_hadjustment (scrollable);
if (priv->vadj)
{
g_object_ref (priv->vadj);
g_signal_connect (priv->vadj, "changed",
G_CALLBACK (adjustment_changed_cb), handle);
g_signal_connect (priv->vadj, "value-changed",
G_CALLBACK (adjustment_changed_cb), handle);
}
if (priv->hadj)
{
g_object_ref (priv->hadj);
g_signal_connect (priv->hadj, "changed",
G_CALLBACK (adjustment_changed_cb), handle);
g_signal_connect (priv->hadj, "value-changed",
G_CALLBACK (adjustment_changed_cb), handle);
}
}
}
static void
_gtk_text_handle_scrollable_notify (GObject *object,
GParamSpec *pspec,
GtkTextHandle *handle)
{
if (pspec->value_type == GTK_TYPE_ADJUSTMENT)
_gtk_text_handle_set_scrollable (handle, GTK_SCROLLABLE (object));
}
static void
_gtk_text_handle_update_scrollable (GtkTextHandle *handle,
GtkScrollable *scrollable)
{
GtkTextHandlePrivate *priv;
priv = handle->priv;
if (priv->parent_scrollable == scrollable)
return;
if (priv->parent_scrollable && priv->scrollable_notify_id &&
g_signal_handler_is_connected (priv->parent_scrollable,
priv->scrollable_notify_id))
g_signal_handler_disconnect (priv->parent_scrollable,
priv->scrollable_notify_id);
_gtk_text_handle_set_scrollable (handle, scrollable);
if (priv->parent_scrollable)
priv->scrollable_notify_id =
g_signal_connect (priv->parent_scrollable, "notify",
G_CALLBACK (_gtk_text_handle_scrollable_notify),
handle);
}
static GtkWidget *
gtk_text_handle_lookup_scrollable (GtkTextHandle *handle)
{
GtkTextHandlePrivate *priv;
GtkWidget *scrolled_window;
priv = handle->priv;
scrolled_window = gtk_widget_get_ancestor (priv->parent,
GTK_TYPE_SCROLLED_WINDOW);
if (!scrolled_window)
return NULL;
return gtk_bin_get_child (GTK_BIN (scrolled_window));
}
static void
_gtk_text_handle_parent_hierarchy_changed (GtkWidget *widget,
GParamSpec *pspec,
GtkTextHandle *handle)
{
GtkWidget *toplevel, *scrollable;
GtkTextHandlePrivate *priv;
priv = handle->priv;
toplevel = gtk_widget_get_ancestor (widget, GTK_TYPE_WINDOW);
if (priv->toplevel && !toplevel)
{
if (priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].widget)
{
_gtk_window_remove_popover (GTK_WINDOW (priv->toplevel),
priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].widget);
g_object_unref (priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].widget);
priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].widget = NULL;
}
if (priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_END].widget)
{
_gtk_window_remove_popover (GTK_WINDOW (priv->toplevel),
priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_END].widget);
g_object_unref (priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_END].widget);
priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_END].widget = NULL;
}
priv->toplevel = NULL;
}
scrollable = gtk_text_handle_lookup_scrollable (handle);
_gtk_text_handle_update_scrollable (handle, GTK_SCROLLABLE (scrollable));
}
static void
_gtk_text_handle_set_parent (GtkTextHandle *handle,
GtkWidget *parent)
{
GtkTextHandlePrivate *priv;
GtkWidget *scrollable = NULL;
priv = handle->priv;
if (priv->parent == parent)
return;
if (priv->parent && priv->hierarchy_changed_id &&
g_signal_handler_is_connected (priv->parent, priv->hierarchy_changed_id))
g_signal_handler_disconnect (priv->parent, priv->hierarchy_changed_id);
priv->parent = parent;
if (parent)
{
priv->hierarchy_changed_id =
g_signal_connect (parent, "notify::root",
G_CALLBACK (_gtk_text_handle_parent_hierarchy_changed),
handle);
scrollable = gtk_text_handle_lookup_scrollable (handle);
}
_gtk_text_handle_update_scrollable (handle, GTK_SCROLLABLE (scrollable));
}
static void
gtk_text_handle_finalize (GObject *object)
{
GtkTextHandlePrivate *priv;
priv = GTK_TEXT_HANDLE (object)->priv;
_gtk_text_handle_set_parent (GTK_TEXT_HANDLE (object), NULL);
/* We sank the references, unref here */
if (priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].widget)
g_object_unref (priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].widget);
if (priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_END].widget)
g_object_unref (priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_END].widget);
G_OBJECT_CLASS (_gtk_text_handle_parent_class)->finalize (object);
}
static void
gtk_text_handle_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkTextHandle *handle;
handle = GTK_TEXT_HANDLE (object);
switch (prop_id)
{
case PROP_PARENT:
_gtk_text_handle_set_parent (handle, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
gtk_text_handle_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkTextHandlePrivate *priv;
priv = GTK_TEXT_HANDLE (object)->priv;
switch (prop_id)
{
case PROP_PARENT:
g_value_set_object (value, priv->parent);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
_gtk_text_handle_class_init (GtkTextHandleClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gtk_text_handle_finalize;
object_class->set_property = gtk_text_handle_set_property;
object_class->get_property = gtk_text_handle_get_property;
signals[HANDLE_DRAGGED] =
g_signal_new (I_("handle-dragged"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTextHandleClass, handle_dragged),
NULL, NULL,
_gtk_marshal_VOID__ENUM_INT_INT,
G_TYPE_NONE, 3,
GTK_TYPE_TEXT_HANDLE_POSITION,
G_TYPE_INT, G_TYPE_INT);
signals[DRAG_STARTED] =
g_signal_new (I_("drag-started"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST, 0,
NULL, NULL,
g_cclosure_marshal_VOID__ENUM,
G_TYPE_NONE, 1,
GTK_TYPE_TEXT_HANDLE_POSITION);
signals[DRAG_FINISHED] =
g_signal_new (I_("drag-finished"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST, 0,
NULL, NULL,
g_cclosure_marshal_VOID__ENUM,
G_TYPE_NONE, 1,
GTK_TYPE_TEXT_HANDLE_POSITION);
g_object_class_install_property (object_class,
PROP_PARENT,
g_param_spec_object ("parent",
P_("Parent widget"),
P_("Parent widget"),
GTK_TYPE_WIDGET,
GTK_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
static void
_gtk_text_handle_init (GtkTextHandle *handle)
{
handle->priv = _gtk_text_handle_get_instance_private (handle);
}
GtkTextHandle *
_gtk_text_handle_new (GtkWidget *parent)
{
return g_object_new (GTK_TYPE_TEXT_HANDLE,
"parent", parent,
NULL);
}
void
_gtk_text_handle_set_mode (GtkTextHandle *handle,
GtkTextHandleMode mode)
{
GtkTextHandlePrivate *priv;
HandleWindow *start, *end;
g_return_if_fail (GTK_IS_TEXT_HANDLE (handle));
priv = handle->priv;
if (priv->mode == mode)
return;
priv->mode = mode;
start = &priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START];
end = &priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_END];
switch (mode)
{
case GTK_TEXT_HANDLE_MODE_CURSOR:
start->mode_visible = FALSE;
/* end = cursor */
end->mode_visible = TRUE;
break;
case GTK_TEXT_HANDLE_MODE_SELECTION:
start->mode_visible = TRUE;
end->mode_visible = TRUE;
break;
case GTK_TEXT_HANDLE_MODE_NONE:
default:
start->mode_visible = FALSE;
end->mode_visible = FALSE;
break;
}
if (end->widget)
{
if (mode == GTK_TEXT_HANDLE_MODE_CURSOR)
gtk_style_context_add_class (gtk_widget_get_style_context (end->widget), GTK_STYLE_CLASS_INSERTION_CURSOR);
else
gtk_style_context_remove_class (gtk_widget_get_style_context (end->widget), GTK_STYLE_CLASS_INSERTION_CURSOR);
}
_gtk_text_handle_update (handle, GTK_TEXT_HANDLE_POSITION_SELECTION_START);
_gtk_text_handle_update (handle, GTK_TEXT_HANDLE_POSITION_SELECTION_END);
if (start->widget && start->mode_visible)
gtk_widget_queue_draw (start->widget);
if (end->widget && end->mode_visible)
gtk_widget_queue_draw (end->widget);
}
GtkTextHandleMode
_gtk_text_handle_get_mode (GtkTextHandle *handle)
{
GtkTextHandlePrivate *priv;
g_return_val_if_fail (GTK_IS_TEXT_HANDLE (handle), GTK_TEXT_HANDLE_MODE_NONE);
priv = handle->priv;
return priv->mode;
}
void
_gtk_text_handle_set_position (GtkTextHandle *handle,
GtkTextHandlePosition pos,
GdkRectangle *rect)
{
GtkTextHandlePrivate *priv;
HandleWindow *handle_window;
g_return_if_fail (GTK_IS_TEXT_HANDLE (handle));
priv = handle->priv;
pos = CLAMP (pos, GTK_TEXT_HANDLE_POSITION_CURSOR,
GTK_TEXT_HANDLE_POSITION_SELECTION_START);
handle_window = &priv->windows[pos];
if (priv->mode == GTK_TEXT_HANDLE_MODE_NONE ||
(priv->mode == GTK_TEXT_HANDLE_MODE_CURSOR &&
pos != GTK_TEXT_HANDLE_POSITION_CURSOR))
return;
handle_window->pointing_to = *rect;
handle_window->has_point = TRUE;
if (gtk_widget_is_visible (priv->parent))
_gtk_text_handle_update (handle, pos);
}
void
_gtk_text_handle_set_visible (GtkTextHandle *handle,
GtkTextHandlePosition pos,
gboolean visible)
{
GtkTextHandlePrivate *priv;
g_return_if_fail (GTK_IS_TEXT_HANDLE (handle));
priv = handle->priv;
pos = CLAMP (pos, GTK_TEXT_HANDLE_POSITION_CURSOR,
GTK_TEXT_HANDLE_POSITION_SELECTION_START);
priv->windows[pos].user_visible = visible;
if (gtk_widget_is_visible (priv->parent))
_gtk_text_handle_update (handle, pos);
}
gboolean
_gtk_text_handle_get_is_dragged (GtkTextHandle *handle,
GtkTextHandlePosition pos)
{
GtkTextHandlePrivate *priv;
g_return_val_if_fail (GTK_IS_TEXT_HANDLE (handle), FALSE);
priv = handle->priv;
pos = CLAMP (pos, GTK_TEXT_HANDLE_POSITION_CURSOR,
GTK_TEXT_HANDLE_POSITION_SELECTION_START);
return priv->windows[pos].dragged;
}
void
_gtk_text_handle_set_direction (GtkTextHandle *handle,
GtkTextHandlePosition pos,
GtkTextDirection dir)
{
GtkTextHandlePrivate *priv;
g_return_if_fail (GTK_IS_TEXT_HANDLE (handle));
priv = handle->priv;
pos = CLAMP (pos, GTK_TEXT_HANDLE_POSITION_CURSOR,
GTK_TEXT_HANDLE_POSITION_SELECTION_START);
priv->windows[pos].dir = dir;
if (priv->windows[pos].widget)
{
gtk_widget_set_direction (priv->windows[pos].widget, dir);
_gtk_text_handle_update (handle, pos);
}
}