gimp/app/display/gimptoolwidgetgroup.c

732 lines
29 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimptoolwidgetgroup.c
* Copyright (C) 2018 Ell
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "display-types.h"
#include "core/gimpcontainer.h"
#include "core/gimplist.h"
#include "gimpcanvasgroup.h"
#include "gimpdisplayshell.h"
#include "gimptoolwidgetgroup.h"
struct _GimpToolWidgetGroupPrivate
{
GimpContainer *children;
GimpToolWidget *focus_widget;
GimpToolWidget *hover_widget;
gboolean auto_raise;
};
/* local function prototypes */
static void gimp_tool_widget_group_finalize (GObject *object);
static void gimp_tool_widget_group_focus_changed (GimpToolWidget *widget);
static gint gimp_tool_widget_group_button_press (GimpToolWidget *widget,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type);
static void gimp_tool_widget_group_button_release (GimpToolWidget *widget,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type);
static void gimp_tool_widget_group_motion (GimpToolWidget *widget,
const GimpCoords *coords,
guint32 time,
GdkModifierType state);
static GimpHit gimp_tool_widget_group_hit (GimpToolWidget *widget,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity);
static void gimp_tool_widget_group_hover (GimpToolWidget *widget,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity);
static void gimp_tool_widget_group_leave_notify (GimpToolWidget *widget);
static gboolean gimp_tool_widget_group_key_press (GimpToolWidget *widget,
GdkEventKey *kevent);
static gboolean gimp_tool_widget_group_key_release (GimpToolWidget *widget,
GdkEventKey *kevent);
static void gimp_tool_widget_group_motion_modifier (GimpToolWidget *widget,
GdkModifierType key,
gboolean press,
GdkModifierType state);
static void gimp_tool_widget_group_hover_modifier (GimpToolWidget *widget,
GdkModifierType key,
gboolean press,
GdkModifierType state);
static gboolean gimp_tool_widget_group_get_cursor (GimpToolWidget *widget,
const GimpCoords *coords,
GdkModifierType state,
GimpCursorType *cursor,
GimpToolCursorType *tool_cursor,
GimpCursorModifier *modifier);
static void gimp_tool_widget_group_children_add (GimpContainer *container,
GimpToolWidget *child,
GimpToolWidgetGroup *group);
static void gimp_tool_widget_group_children_remove (GimpContainer *container,
GimpToolWidget *child,
GimpToolWidgetGroup *group);
static void gimp_tool_widget_group_children_reorder (GimpContainer *container,
GimpToolWidget *child,
gint new_index,
GimpToolWidgetGroup *group);
static void gimp_tool_widget_group_child_changed (GimpToolWidget *child,
GimpToolWidgetGroup *group);
static void gimp_tool_widget_group_child_response (GimpToolWidget *child,
gint response_id,
GimpToolWidgetGroup *group);
static void gimp_tool_widget_group_child_snap_offsets (GimpToolWidget *child,
gint offset_x,
gint offset_y,
gint width,
gint height,
GimpToolWidgetGroup *group);
static void gimp_tool_widget_group_child_status (GimpToolWidget *child,
const gchar *status,
GimpToolWidgetGroup *group);
static void gimp_tool_widget_group_child_status_coords (GimpToolWidget *child,
const gchar *title,
gdouble x,
const gchar *separator,
gdouble y,
const gchar *help,
GimpToolWidgetGroup *group);
static void gimp_tool_widget_group_child_message (GimpToolWidget *child,
const gchar *message,
GimpToolWidgetGroup *group);
static void gimp_tool_widget_group_child_focus_changed (GimpToolWidget *child,
GimpToolWidgetGroup *group);
static GimpToolWidget * gimp_tool_widget_group_get_hover_widget (GimpToolWidgetGroup *group,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpHit *hit);
G_DEFINE_TYPE_WITH_PRIVATE (GimpToolWidgetGroup, gimp_tool_widget_group,
GIMP_TYPE_TOOL_WIDGET)
#define parent_class gimp_tool_widget_group_parent_class
/* priv functions */
static void
gimp_tool_widget_group_class_init (GimpToolWidgetGroupClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpToolWidgetClass *widget_class = GIMP_TOOL_WIDGET_CLASS (klass);
object_class->finalize = gimp_tool_widget_group_finalize;
widget_class->focus_changed = gimp_tool_widget_group_focus_changed;
widget_class->button_press = gimp_tool_widget_group_button_press;
widget_class->button_release = gimp_tool_widget_group_button_release;
widget_class->motion = gimp_tool_widget_group_motion;
widget_class->hit = gimp_tool_widget_group_hit;
widget_class->hover = gimp_tool_widget_group_hover;
widget_class->leave_notify = gimp_tool_widget_group_leave_notify;
widget_class->key_press = gimp_tool_widget_group_key_press;
widget_class->key_release = gimp_tool_widget_group_key_release;
widget_class->motion_modifier = gimp_tool_widget_group_motion_modifier;
widget_class->hover_modifier = gimp_tool_widget_group_hover_modifier;
widget_class->get_cursor = gimp_tool_widget_group_get_cursor;
}
static void
gimp_tool_widget_group_init (GimpToolWidgetGroup *group)
{
GimpToolWidgetGroupPrivate *priv;
priv = group->priv = gimp_tool_widget_group_get_instance_private (group);
priv->children = g_object_new (GIMP_TYPE_LIST,
"children-type", GIMP_TYPE_TOOL_WIDGET,
"append", TRUE,
NULL);
g_signal_connect (priv->children, "add",
G_CALLBACK (gimp_tool_widget_group_children_add),
group);
g_signal_connect (priv->children, "remove",
G_CALLBACK (gimp_tool_widget_group_children_remove),
group);
g_signal_connect (priv->children, "reorder",
G_CALLBACK (gimp_tool_widget_group_children_reorder),
group);
gimp_container_add_handler (priv->children, "changed",
G_CALLBACK (gimp_tool_widget_group_child_changed),
group);
gimp_container_add_handler (priv->children, "response",
G_CALLBACK (gimp_tool_widget_group_child_response),
group);
gimp_container_add_handler (priv->children, "snap-offsets",
G_CALLBACK (gimp_tool_widget_group_child_snap_offsets),
group);
gimp_container_add_handler (priv->children, "status",
G_CALLBACK (gimp_tool_widget_group_child_status),
group);
gimp_container_add_handler (priv->children, "status-coords",
G_CALLBACK (gimp_tool_widget_group_child_status_coords),
group);
gimp_container_add_handler (priv->children, "message",
G_CALLBACK (gimp_tool_widget_group_child_message),
group);
gimp_container_add_handler (priv->children, "focus-changed",
G_CALLBACK (gimp_tool_widget_group_child_focus_changed),
group);
}
static void
gimp_tool_widget_group_finalize (GObject *object)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (object);
GimpToolWidgetGroupPrivate *priv = group->priv;
g_clear_object (&priv->children);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gint
gimp_tool_widget_group_button_press (GimpToolWidget *widget,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
gimp_tool_widget_group_hover (widget, coords, state, TRUE);
if (priv->focus_widget != priv->hover_widget)
{
if (priv->hover_widget)
gimp_tool_widget_set_focus (priv->hover_widget, TRUE);
else if (priv->focus_widget)
gimp_tool_widget_set_focus (priv->focus_widget, FALSE);
}
if (priv->hover_widget)
{
if (priv->auto_raise)
{
gimp_container_reorder (priv->children,
GIMP_OBJECT (priv->hover_widget), -1);
}
return gimp_tool_widget_button_press (priv->hover_widget,
coords, time, state, press_type);
}
return FALSE;
}
static void
gimp_tool_widget_group_focus_changed (GimpToolWidget *widget)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
if (priv->focus_widget)
{
GimpToolWidget *focus_widget = priv->focus_widget;
gimp_tool_widget_set_focus (priv->focus_widget,
gimp_tool_widget_get_focus (widget));
priv->focus_widget = focus_widget;
}
}
static void
gimp_tool_widget_group_button_release (GimpToolWidget *widget,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
if (priv->hover_widget)
{
gimp_tool_widget_button_release (priv->hover_widget,
coords, time, state, release_type);
}
}
static void
gimp_tool_widget_group_motion (GimpToolWidget *widget,
const GimpCoords *coords,
guint32 time,
GdkModifierType state)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
if (priv->hover_widget)
gimp_tool_widget_motion (priv->hover_widget, coords, time, state);
}
static GimpHit
gimp_tool_widget_group_hit (GimpToolWidget *widget,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpHit hit;
gimp_tool_widget_group_get_hover_widget (group,
coords, state, proximity,
&hit);
return hit;
}
static void
gimp_tool_widget_group_hover (GimpToolWidget *widget,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
GimpToolWidget *hover_widget;
hover_widget =
gimp_tool_widget_group_get_hover_widget (group,
coords, state, proximity,
NULL);
if (priv->hover_widget && priv->hover_widget != hover_widget)
gimp_tool_widget_leave_notify (priv->hover_widget);
priv->hover_widget = hover_widget;
if (priv->hover_widget)
gimp_tool_widget_hover (priv->hover_widget, coords, state, proximity);
}
static void
gimp_tool_widget_group_leave_notify (GimpToolWidget *widget)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
if (priv->hover_widget)
{
gimp_tool_widget_leave_notify (priv->hover_widget);
priv->hover_widget = NULL;
}
GIMP_TOOL_WIDGET_CLASS (parent_class)->leave_notify (widget);
}
static gboolean
gimp_tool_widget_group_key_press (GimpToolWidget *widget,
GdkEventKey *kevent)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
if (priv->focus_widget)
return gimp_tool_widget_key_press (priv->focus_widget, kevent);
return GIMP_TOOL_WIDGET_CLASS (parent_class)->key_press (widget, kevent);
}
static gboolean
gimp_tool_widget_group_key_release (GimpToolWidget *widget,
GdkEventKey *kevent)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
if (priv->focus_widget)
return gimp_tool_widget_key_release (priv->focus_widget, kevent);
return FALSE;
}
static void
gimp_tool_widget_group_motion_modifier (GimpToolWidget *widget,
GdkModifierType key,
gboolean press,
GdkModifierType state)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
if (priv->hover_widget)
gimp_tool_widget_motion_modifier (priv->hover_widget, key, press, state);
}
static void
gimp_tool_widget_group_hover_modifier (GimpToolWidget *widget,
GdkModifierType key,
gboolean press,
GdkModifierType state)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
GList *iter;
for (iter = g_queue_peek_head_link (GIMP_LIST (priv->children)->queue);
iter;
iter = g_list_next (iter))
{
gimp_tool_widget_hover_modifier (iter->data, key, press, state);
}
}
static gboolean
gimp_tool_widget_group_get_cursor (GimpToolWidget *widget,
const GimpCoords *coords,
GdkModifierType state,
GimpCursorType *cursor,
GimpToolCursorType *tool_cursor,
GimpCursorModifier *modifier)
{
GimpToolWidgetGroup *group = GIMP_TOOL_WIDGET_GROUP (widget);
GimpToolWidgetGroupPrivate *priv = group->priv;
if (priv->hover_widget)
{
return gimp_tool_widget_get_cursor (priv->hover_widget,
coords, state,
cursor, tool_cursor, modifier);
}
return FALSE;
}
static void
gimp_tool_widget_group_children_add (GimpContainer *container,
GimpToolWidget *child,
GimpToolWidgetGroup *group)
{
GimpToolWidgetGroupPrivate *priv = group->priv;
GimpToolWidget *widget = GIMP_TOOL_WIDGET (group);
GimpCanvasGroup *canvas_group;
canvas_group = GIMP_CANVAS_GROUP (gimp_tool_widget_get_item (widget));
gimp_canvas_group_add_item (canvas_group,
gimp_tool_widget_get_item (child));
if (gimp_tool_widget_get_focus (child) && priv->focus_widget)
{
gimp_tool_widget_set_focus (priv->focus_widget, FALSE);
priv->focus_widget = NULL;
}
if (! priv->focus_widget)
{
priv->focus_widget = child;
gimp_tool_widget_set_focus (child, gimp_tool_widget_get_focus (widget));
}
gimp_tool_widget_changed (widget);
}
static void
gimp_tool_widget_group_children_remove (GimpContainer *container,
GimpToolWidget *child,
GimpToolWidgetGroup *group)
{
GimpToolWidgetGroupPrivate *priv = group->priv;
GimpToolWidget *widget = GIMP_TOOL_WIDGET (group);
GimpCanvasGroup *canvas_group;
canvas_group = GIMP_CANVAS_GROUP (gimp_tool_widget_get_item (widget));
if (priv->focus_widget == child)
{
gimp_tool_widget_set_focus (child, FALSE);
priv->focus_widget = NULL;
}
if (priv->hover_widget == child)
{
gimp_tool_widget_leave_notify (child);
priv->hover_widget = NULL;
}
if (! priv->focus_widget)
{
priv->focus_widget =
GIMP_TOOL_WIDGET (gimp_container_get_last_child (container));
if (priv->focus_widget)
gimp_tool_widget_set_focus (priv->focus_widget, TRUE);
}
gimp_canvas_group_remove_item (canvas_group,
gimp_tool_widget_get_item (child));
gimp_tool_widget_changed (widget);
}
static void
gimp_tool_widget_group_children_reorder (GimpContainer *container,
GimpToolWidget *child,
gint new_index,
GimpToolWidgetGroup *group)
{
GimpToolWidget *widget = GIMP_TOOL_WIDGET (group);
GimpCanvasGroup *canvas_group;
GList *iter;
canvas_group = GIMP_CANVAS_GROUP (gimp_tool_widget_get_item (widget));
for (iter = g_queue_peek_head_link (GIMP_LIST (container)->queue);
iter;
iter = g_list_next (iter))
{
GimpCanvasItem *item = gimp_tool_widget_get_item (iter->data);
gimp_canvas_group_remove_item (canvas_group, item);
gimp_canvas_group_add_item (canvas_group, item);
}
gimp_tool_widget_changed (widget);
}
static void
gimp_tool_widget_group_child_changed (GimpToolWidget *child,
GimpToolWidgetGroup *group)
{
GimpToolWidget *widget = GIMP_TOOL_WIDGET (group);
gimp_tool_widget_changed (widget);
}
static void
gimp_tool_widget_group_child_response (GimpToolWidget *child,
gint response_id,
GimpToolWidgetGroup *group)
{
GimpToolWidgetGroupPrivate *priv = group->priv;
GimpToolWidget *widget = GIMP_TOOL_WIDGET (group);
if (priv->focus_widget == child)
gimp_tool_widget_response (widget, response_id);
}
static void
gimp_tool_widget_group_child_snap_offsets (GimpToolWidget *child,
gint offset_x,
gint offset_y,
gint width,
gint height,
GimpToolWidgetGroup *group)
{
GimpToolWidgetGroupPrivate *priv = group->priv;
GimpToolWidget *widget = GIMP_TOOL_WIDGET (group);
if (priv->hover_widget == child)
{
gimp_tool_widget_set_snap_offsets (widget,
offset_x, offset_y, width, height);
}
}
static void
gimp_tool_widget_group_child_status (GimpToolWidget *child,
const gchar *status,
GimpToolWidgetGroup *group)
{
GimpToolWidgetGroupPrivate *priv = group->priv;
GimpToolWidget *widget = GIMP_TOOL_WIDGET (group);
if (priv->hover_widget == child)
gimp_tool_widget_set_status (widget, status);
}
static void
gimp_tool_widget_group_child_status_coords (GimpToolWidget *child,
const gchar *title,
gdouble x,
const gchar *separator,
gdouble y,
const gchar *help,
GimpToolWidgetGroup *group)
{
GimpToolWidgetGroupPrivate *priv = group->priv;
GimpToolWidget *widget = GIMP_TOOL_WIDGET (group);
if (priv->hover_widget == child)
gimp_tool_widget_set_status_coords (widget, title, x, separator, y, help);
}
static void
gimp_tool_widget_group_child_message (GimpToolWidget *child,
const gchar *message,
GimpToolWidgetGroup *group)
{
GimpToolWidgetGroupPrivate *priv = group->priv;
GimpToolWidget *widget = GIMP_TOOL_WIDGET (group);
if (priv->focus_widget == child)
gimp_tool_widget_message_literal (widget, message);
}
static void
gimp_tool_widget_group_child_focus_changed (GimpToolWidget *child,
GimpToolWidgetGroup *group)
{
GimpToolWidgetGroupPrivate *priv = group->priv;
GimpToolWidget *widget = GIMP_TOOL_WIDGET (group);
if (gimp_tool_widget_get_focus (child))
{
if (priv->focus_widget && priv->focus_widget != child)
gimp_tool_widget_set_focus (priv->focus_widget, FALSE);
priv->focus_widget = child;
gimp_tool_widget_set_focus (widget, TRUE);
}
else
{
if (priv->focus_widget == child)
priv->focus_widget = NULL;
}
}
static GimpToolWidget *
gimp_tool_widget_group_get_hover_widget (GimpToolWidgetGroup *group,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpHit *hit)
{
GimpToolWidgetGroupPrivate *priv = group->priv;
GimpToolWidget *indirect_child = NULL;
gboolean indirect = FALSE;
GList *iter;
for (iter = g_queue_peek_tail_link (GIMP_LIST (priv->children)->queue);
iter;
iter = g_list_previous (iter))
{
GimpToolWidget *child = iter->data;
switch (gimp_tool_widget_hit (child, coords, state, proximity))
{
case GIMP_HIT_DIRECT:
if (hit) *hit = GIMP_HIT_DIRECT;
return child;
case GIMP_HIT_INDIRECT:
if (! indirect || child == priv->focus_widget)
indirect_child = child;
else if (indirect_child != priv->focus_widget)
indirect_child = NULL;
indirect = TRUE;
break;
case GIMP_HIT_NONE:
break;
}
}
if (hit) *hit = indirect_child ? GIMP_HIT_INDIRECT : GIMP_HIT_NONE;
return indirect_child;
}
/* public functions */
GimpToolWidget *
gimp_tool_widget_group_new (GimpDisplayShell *shell)
{
g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
return g_object_new (GIMP_TYPE_TOOL_WIDGET_GROUP,
"shell", shell,
NULL);
}
GimpContainer *
gimp_tool_widget_group_get_children (GimpToolWidgetGroup *group)
{
g_return_val_if_fail (GIMP_IS_TOOL_WIDGET_GROUP (group), NULL);
return group->priv->children;
}
GimpToolWidget *
gimp_tool_widget_group_get_focus_widget (GimpToolWidgetGroup *group)
{
g_return_val_if_fail (GIMP_IS_TOOL_WIDGET_GROUP (group), NULL);
return group->priv->focus_widget;
}
void
gimp_tool_widget_group_set_auto_raise (GimpToolWidgetGroup *group,
gboolean auto_raise)
{
g_return_if_fail (GIMP_IS_TOOL_WIDGET_GROUP (group));
group->priv->auto_raise = auto_raise;
}
gboolean
gimp_tool_widget_group_get_auto_raise (GimpToolWidgetGroup *group)
{
g_return_val_if_fail (GIMP_IS_TOOL_WIDGET_GROUP (group), FALSE);
return group->priv->auto_raise;
}