gtk2/gtk/gtktexthandle.c
Carlos Garnacho 7f57f63eba gtkwindow: Only allow unrestricted positioning to text handle popovers
This behavior has been made optional on add_popover() time, text handles
will keep being able to overflow the window, in order to allow text
selection on views too close to the window edge.

Regular GtkPopovers are reinstaurated to the previous size positioning
logic though, that is, limited by the visible area of the window.
2015-07-06 16:39:06 +02:00

850 lines
26 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 "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 *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,
gint *width,
gint *height)
{
GtkTextHandlePrivate *priv;
gint w, h;
priv = handle->priv;
gtk_widget_style_get (priv->parent,
"text-handle-width", &w,
"text-handle-height", &h,
NULL);
if (width)
*width = w;
if (height)
*height = h;
}
static void
_gtk_text_handle_draw (GtkTextHandle *handle,
cairo_t *cr,
GtkTextHandlePosition pos)
{
GtkTextHandlePrivate *priv;
HandleWindow *handle_window;
GtkStyleContext *context;
gint width, height;
priv = handle->priv;
handle_window = &priv->windows[pos];
context = gtk_widget_get_style_context (handle_window->widget);
_gtk_text_handle_get_size (handle, &width, &height);
cairo_save (cr);
cairo_translate (cr, handle_window->border.left, handle_window->border.top);
gtk_style_context_save (context);
gtk_style_context_add_class (context,
GTK_STYLE_CLASS_CURSOR_HANDLE);
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);
gtk_render_handle (context, cr, 0, 0, width, height);
gtk_style_context_restore (context);
cairo_restore (cr);
}
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 gboolean
gtk_text_handle_widget_draw (GtkWidget *widget,
cairo_t *cr,
GtkTextHandle *handle)
{
gint pos;
pos = _text_handle_pos_from_widget (handle, widget);
if (pos < 0)
return FALSE;
#if 0
/* Show the invisible border */
cairo_set_source_rgba (cr, 1, 0, 0, 0.5);
cairo_paint (cr);
#endif
_gtk_text_handle_draw (handle, cr, pos);
return TRUE;
}
static void
gtk_text_handle_set_state (GtkTextHandle *handle,
gint pos,
GtkStateFlags state)
{
GtkTextHandlePrivate *priv = handle->priv;
if (!priv->windows[pos].widget)
return;
gtk_widget_set_state_flags (priv->windows[pos].widget, state, FALSE);
gtk_widget_queue_draw (priv->windows[pos].widget);
}
static void
gtk_text_handle_unset_state (GtkTextHandle *handle,
gint pos,
GtkStateFlags state)
{
GtkTextHandlePrivate *priv = handle->priv;
if (!priv->windows[pos].widget)
return;
gtk_widget_unset_state_flags (priv->windows[pos].widget, state);
gtk_widget_queue_draw (priv->windows[pos].widget);
}
static gboolean
gtk_text_handle_widget_event (GtkWidget *widget,
GdkEvent *event,
GtkTextHandle *handle)
{
GtkTextHandlePrivate *priv;
gint pos;
priv = handle->priv;
pos = _text_handle_pos_from_widget (handle, widget);
if (pos < 0)
return FALSE;
if (event->type == GDK_BUTTON_PRESS)
{
priv->windows[pos].dx = event->button.x;
priv->windows[pos].dy = event->button.y;
priv->windows[pos].dragged = TRUE;
gtk_text_handle_set_state (handle, pos, GTK_STATE_FLAG_ACTIVE);
g_signal_emit (handle, signals[DRAG_STARTED], 0, pos);
}
else if (event->type == GDK_BUTTON_RELEASE)
{
g_signal_emit (handle, signals[DRAG_FINISHED], 0, pos);
priv->windows[pos].dragged = FALSE;
gtk_text_handle_unset_state (handle, pos, GTK_STATE_FLAG_ACTIVE);
}
else if (event->type == GDK_ENTER_NOTIFY)
gtk_text_handle_set_state (handle, pos, GTK_STATE_FLAG_PRELIGHT);
else if (event->type == GDK_LEAVE_NOTIFY)
{
if (!priv->windows[pos].dragged &&
(event->crossing.mode == GDK_CROSSING_NORMAL ||
event->crossing.mode == GDK_CROSSING_UNGRAB))
gtk_text_handle_unset_state (handle, pos, GTK_STATE_FLAG_PRELIGHT);
}
else if (event->type == GDK_MOTION_NOTIFY &&
event->motion.state & GDK_BUTTON1_MASK &&
priv->windows[pos].dragged)
{
gint x, y, width, handle_height;
GtkAllocation allocation;
gtk_widget_get_allocation (priv->windows[pos].widget, &allocation);
width = allocation.width;
_gtk_text_handle_get_size (handle, NULL, &handle_height);
x = event->motion.x - priv->windows[pos].dx + (width / 2);
y = event->motion.y - priv->windows[pos].dy +
priv->windows[pos].pointing_to.height / 2;
gtk_widget_translate_coordinates (widget, priv->parent, x, y, &x, &y);
g_signal_emit (handle, signals[HANDLE_DRAGGED], 0, pos, x, y);
}
return TRUE;
}
static void
gtk_text_handle_widget_style_updated (GtkWidget *widget,
GtkTextHandle *handle)
{
GtkTextHandlePrivate *priv;
priv = handle->priv;
gtk_style_context_set_parent (gtk_widget_get_style_context (widget),
gtk_widget_get_style_context (priv->parent));
_gtk_text_handle_update (handle, GTK_TEXT_HANDLE_POSITION_SELECTION_START);
_gtk_text_handle_update (handle, GTK_TEXT_HANDLE_POSITION_SELECTION_END);
}
static GtkWidget *
_gtk_text_handle_ensure_widget (GtkTextHandle *handle,
GtkTextHandlePosition pos)
{
GtkTextHandlePrivate *priv;
priv = handle->priv;
if (!priv->windows[pos].widget)
{
GtkWidget *widget, *window;
widget = gtk_event_box_new ();
gtk_event_box_set_visible_window (GTK_EVENT_BOX (widget), TRUE);
gtk_widget_set_events (widget,
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_ENTER_NOTIFY_MASK |
GDK_LEAVE_NOTIFY_MASK |
GDK_POINTER_MOTION_MASK);
gtk_widget_set_direction (widget, priv->windows[pos].dir);
g_signal_connect (widget, "draw",
G_CALLBACK (gtk_text_handle_widget_draw), handle);
g_signal_connect (widget, "event",
G_CALLBACK (gtk_text_handle_widget_event), handle);
g_signal_connect (widget, "style-updated",
G_CALLBACK (gtk_text_handle_widget_style_updated),
handle);
priv->windows[pos].widget = g_object_ref_sink (widget);
window = gtk_widget_get_ancestor (priv->parent, GTK_TYPE_WINDOW);
_gtk_window_add_popover (GTK_WINDOW (window), widget, priv->parent, FALSE);
gtk_style_context_set_parent (gtk_widget_get_style_context (widget),
gtk_widget_get_style_context (priv->parent));
}
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, &width, &height);
rect.x = handle_window->pointing_to.x;
rect.y = handle_window->pointing_to.y;
rect.width = width;
rect.height = 0;
border->left = width;
border->right = width;
_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;
border->top = height;
border->bottom = handle_window->pointing_to.height;
/* 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_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->parent_scrollable)
{
if (priv->vadj)
{
g_signal_handlers_disconnect_by_data (priv->vadj, handle);
g_object_unref (priv->vadj);
priv->vadj = NULL;
}
if (priv->hadj)
{
g_signal_handlers_disconnect_by_data (priv->hadj, handle);
g_object_unref (priv->hadj);
priv->hadj = NULL;
}
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 void
_gtk_text_handle_parent_hierarchy_changed (GtkWidget *widget,
GtkWindow *previous_toplevel,
GtkTextHandle *handle)
{
GtkWidget *toplevel, *scrollable;
GtkTextHandlePrivate *priv;
priv = handle->priv;
toplevel = gtk_widget_get_ancestor (widget, GTK_TYPE_WINDOW);
if (previous_toplevel && !toplevel)
{
if (priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].widget)
{
_gtk_window_remove_popover (GTK_WINDOW (previous_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 (previous_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;
}
}
scrollable = gtk_widget_get_ancestor (widget, GTK_TYPE_SCROLLABLE);
_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, "hierarchy-changed",
G_CALLBACK (_gtk_text_handle_parent_hierarchy_changed),
handle);
scrollable = gtk_widget_get_ancestor (parent, GTK_TYPE_SCROLLABLE);
}
_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;
g_return_if_fail (GTK_IS_TEXT_HANDLE (handle));
priv = handle->priv;
if (priv->mode == mode)
return;
priv->mode = mode;
switch (mode)
{
case GTK_TEXT_HANDLE_MODE_CURSOR:
priv->windows[GTK_TEXT_HANDLE_POSITION_CURSOR].mode_visible = TRUE;
priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].mode_visible = FALSE;
break;
case GTK_TEXT_HANDLE_MODE_SELECTION:
priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].mode_visible = TRUE;
priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_END].mode_visible = TRUE;
break;
case GTK_TEXT_HANDLE_MODE_NONE:
default:
priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_START].mode_visible = FALSE;
priv->windows[GTK_TEXT_HANDLE_POSITION_SELECTION_END].mode_visible = FALSE;
break;
}
_gtk_text_handle_update (handle, GTK_TEXT_HANDLE_POSITION_SELECTION_START);
_gtk_text_handle_update (handle, GTK_TEXT_HANDLE_POSITION_SELECTION_END);
}
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);
}
}