PIKApp/app/display/pikatoolwidgetgroup.c

736 lines
29 KiB
C

/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* pikatoolwidgetgroup.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/pikacontainer.h"
#include "core/pikalist.h"
#include "pikacanvasgroup.h"
#include "pikadisplayshell.h"
#include "pikatoolwidgetgroup.h"
struct _PikaToolWidgetGroupPrivate
{
PikaContainer *children;
PikaToolWidget *focus_widget;
PikaToolWidget *hover_widget;
gboolean auto_raise;
};
/* local function prototypes */
static void pika_tool_widget_group_finalize (GObject *object);
static void pika_tool_widget_group_focus_changed (PikaToolWidget *widget);
static gint pika_tool_widget_group_button_press (PikaToolWidget *widget,
const PikaCoords *coords,
guint32 time,
GdkModifierType state,
PikaButtonPressType press_type);
static void pika_tool_widget_group_button_release (PikaToolWidget *widget,
const PikaCoords *coords,
guint32 time,
GdkModifierType state,
PikaButtonReleaseType release_type);
static void pika_tool_widget_group_motion (PikaToolWidget *widget,
const PikaCoords *coords,
guint32 time,
GdkModifierType state);
static PikaHit pika_tool_widget_group_hit (PikaToolWidget *widget,
const PikaCoords *coords,
GdkModifierType state,
gboolean proximity);
static void pika_tool_widget_group_hover (PikaToolWidget *widget,
const PikaCoords *coords,
GdkModifierType state,
gboolean proximity);
static void pika_tool_widget_group_leave_notify (PikaToolWidget *widget);
static gboolean pika_tool_widget_group_key_press (PikaToolWidget *widget,
GdkEventKey *kevent);
static gboolean pika_tool_widget_group_key_release (PikaToolWidget *widget,
GdkEventKey *kevent);
static void pika_tool_widget_group_motion_modifier (PikaToolWidget *widget,
GdkModifierType key,
gboolean press,
GdkModifierType state);
static void pika_tool_widget_group_hover_modifier (PikaToolWidget *widget,
GdkModifierType key,
gboolean press,
GdkModifierType state);
static gboolean pika_tool_widget_group_get_cursor (PikaToolWidget *widget,
const PikaCoords *coords,
GdkModifierType state,
PikaCursorType *cursor,
PikaToolCursorType *tool_cursor,
PikaCursorModifier *modifier);
static void pika_tool_widget_group_children_add (PikaContainer *container,
PikaToolWidget *child,
PikaToolWidgetGroup *group);
static void pika_tool_widget_group_children_remove (PikaContainer *container,
PikaToolWidget *child,
PikaToolWidgetGroup *group);
static void pika_tool_widget_group_children_reorder (PikaContainer *container,
PikaToolWidget *child,
gint new_index,
PikaToolWidgetGroup *group);
static void pika_tool_widget_group_child_changed (PikaToolWidget *child,
PikaToolWidgetGroup *group);
static void pika_tool_widget_group_child_response (PikaToolWidget *child,
gint response_id,
PikaToolWidgetGroup *group);
static void pika_tool_widget_group_child_snap_offsets (PikaToolWidget *child,
gint offset_x,
gint offset_y,
gint width,
gint height,
PikaToolWidgetGroup *group);
static void pika_tool_widget_group_child_status (PikaToolWidget *child,
const gchar *status,
PikaToolWidgetGroup *group);
static void pika_tool_widget_group_child_status_coords (PikaToolWidget *child,
const gchar *title,
gdouble x,
const gchar *separator,
gdouble y,
const gchar *help,
PikaToolWidgetGroup *group);
static void pika_tool_widget_group_child_message (PikaToolWidget *child,
const gchar *message,
PikaToolWidgetGroup *group);
static void pika_tool_widget_group_child_focus_changed (PikaToolWidget *child,
PikaToolWidgetGroup *group);
static PikaToolWidget * pika_tool_widget_group_get_hover_widget (PikaToolWidgetGroup *group,
const PikaCoords *coords,
GdkModifierType state,
gboolean proximity,
PikaHit *hit);
G_DEFINE_TYPE_WITH_PRIVATE (PikaToolWidgetGroup, pika_tool_widget_group,
PIKA_TYPE_TOOL_WIDGET)
#define parent_class pika_tool_widget_group_parent_class
/* priv functions */
static void
pika_tool_widget_group_class_init (PikaToolWidgetGroupClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
PikaToolWidgetClass *widget_class = PIKA_TOOL_WIDGET_CLASS (klass);
object_class->finalize = pika_tool_widget_group_finalize;
widget_class->focus_changed = pika_tool_widget_group_focus_changed;
widget_class->button_press = pika_tool_widget_group_button_press;
widget_class->button_release = pika_tool_widget_group_button_release;
widget_class->motion = pika_tool_widget_group_motion;
widget_class->hit = pika_tool_widget_group_hit;
widget_class->hover = pika_tool_widget_group_hover;
widget_class->leave_notify = pika_tool_widget_group_leave_notify;
widget_class->key_press = pika_tool_widget_group_key_press;
widget_class->key_release = pika_tool_widget_group_key_release;
widget_class->motion_modifier = pika_tool_widget_group_motion_modifier;
widget_class->hover_modifier = pika_tool_widget_group_hover_modifier;
widget_class->get_cursor = pika_tool_widget_group_get_cursor;
}
static void
pika_tool_widget_group_init (PikaToolWidgetGroup *group)
{
PikaToolWidgetGroupPrivate *priv;
priv = group->priv = pika_tool_widget_group_get_instance_private (group);
priv->children = g_object_new (PIKA_TYPE_LIST,
"children-type", PIKA_TYPE_TOOL_WIDGET,
"append", TRUE,
NULL);
g_signal_connect (priv->children, "add",
G_CALLBACK (pika_tool_widget_group_children_add),
group);
g_signal_connect (priv->children, "remove",
G_CALLBACK (pika_tool_widget_group_children_remove),
group);
g_signal_connect (priv->children, "reorder",
G_CALLBACK (pika_tool_widget_group_children_reorder),
group);
pika_container_add_handler (priv->children, "changed",
G_CALLBACK (pika_tool_widget_group_child_changed),
group);
pika_container_add_handler (priv->children, "response",
G_CALLBACK (pika_tool_widget_group_child_response),
group);
pika_container_add_handler (priv->children, "snap-offsets",
G_CALLBACK (pika_tool_widget_group_child_snap_offsets),
group);
pika_container_add_handler (priv->children, "status",
G_CALLBACK (pika_tool_widget_group_child_status),
group);
pika_container_add_handler (priv->children, "status-coords",
G_CALLBACK (pika_tool_widget_group_child_status_coords),
group);
pika_container_add_handler (priv->children, "message",
G_CALLBACK (pika_tool_widget_group_child_message),
group);
pika_container_add_handler (priv->children, "focus-changed",
G_CALLBACK (pika_tool_widget_group_child_focus_changed),
group);
}
static void
pika_tool_widget_group_finalize (GObject *object)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (object);
PikaToolWidgetGroupPrivate *priv = group->priv;
g_clear_object (&priv->children);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gint
pika_tool_widget_group_button_press (PikaToolWidget *widget,
const PikaCoords *coords,
guint32 time,
GdkModifierType state,
PikaButtonPressType press_type)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
pika_tool_widget_group_hover (widget, coords, state, TRUE);
if (priv->focus_widget != priv->hover_widget)
{
if (priv->hover_widget)
pika_tool_widget_set_focus (priv->hover_widget, TRUE);
else if (priv->focus_widget)
pika_tool_widget_set_focus (priv->focus_widget, FALSE);
}
if (priv->hover_widget)
{
if (priv->auto_raise)
{
pika_container_reorder (priv->children,
PIKA_OBJECT (priv->hover_widget), -1);
}
return pika_tool_widget_button_press (priv->hover_widget,
coords, time, state, press_type);
}
return FALSE;
}
static void
pika_tool_widget_group_focus_changed (PikaToolWidget *widget)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
if (priv->focus_widget)
{
PikaToolWidget *focus_widget = priv->focus_widget;
pika_tool_widget_set_focus (priv->focus_widget,
pika_tool_widget_get_focus (widget));
priv->focus_widget = focus_widget;
}
}
static void
pika_tool_widget_group_button_release (PikaToolWidget *widget,
const PikaCoords *coords,
guint32 time,
GdkModifierType state,
PikaButtonReleaseType release_type)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
if (priv->hover_widget)
{
pika_tool_widget_button_release (priv->hover_widget,
coords, time, state, release_type);
}
}
static void
pika_tool_widget_group_motion (PikaToolWidget *widget,
const PikaCoords *coords,
guint32 time,
GdkModifierType state)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
if (priv->hover_widget)
pika_tool_widget_motion (priv->hover_widget, coords, time, state);
}
static PikaHit
pika_tool_widget_group_hit (PikaToolWidget *widget,
const PikaCoords *coords,
GdkModifierType state,
gboolean proximity)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaHit hit;
pika_tool_widget_group_get_hover_widget (group,
coords, state, proximity,
&hit);
return hit;
}
static void
pika_tool_widget_group_hover (PikaToolWidget *widget,
const PikaCoords *coords,
GdkModifierType state,
gboolean proximity)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
PikaToolWidget *hover_widget;
hover_widget =
pika_tool_widget_group_get_hover_widget (group,
coords, state, proximity,
NULL);
if (priv->hover_widget && priv->hover_widget != hover_widget)
pika_tool_widget_leave_notify (priv->hover_widget);
priv->hover_widget = hover_widget;
if (priv->hover_widget)
pika_tool_widget_hover (priv->hover_widget, coords, state, proximity);
}
static void
pika_tool_widget_group_leave_notify (PikaToolWidget *widget)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
if (priv->hover_widget)
{
pika_tool_widget_leave_notify (priv->hover_widget);
priv->hover_widget = NULL;
}
PIKA_TOOL_WIDGET_CLASS (parent_class)->leave_notify (widget);
}
static gboolean
pika_tool_widget_group_key_press (PikaToolWidget *widget,
GdkEventKey *kevent)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
if (priv->focus_widget)
return pika_tool_widget_key_press (priv->focus_widget, kevent);
return PIKA_TOOL_WIDGET_CLASS (parent_class)->key_press (widget, kevent);
}
static gboolean
pika_tool_widget_group_key_release (PikaToolWidget *widget,
GdkEventKey *kevent)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
if (priv->focus_widget)
return pika_tool_widget_key_release (priv->focus_widget, kevent);
return FALSE;
}
static void
pika_tool_widget_group_motion_modifier (PikaToolWidget *widget,
GdkModifierType key,
gboolean press,
GdkModifierType state)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
if (priv->hover_widget)
pika_tool_widget_motion_modifier (priv->hover_widget, key, press, state);
}
static void
pika_tool_widget_group_hover_modifier (PikaToolWidget *widget,
GdkModifierType key,
gboolean press,
GdkModifierType state)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
GList *iter;
for (iter = g_queue_peek_head_link (PIKA_LIST (priv->children)->queue);
iter;
iter = g_list_next (iter))
{
pika_tool_widget_hover_modifier (iter->data, key, press, state);
}
}
static gboolean
pika_tool_widget_group_get_cursor (PikaToolWidget *widget,
const PikaCoords *coords,
GdkModifierType state,
PikaCursorType *cursor,
PikaToolCursorType *tool_cursor,
PikaCursorModifier *modifier)
{
PikaToolWidgetGroup *group = PIKA_TOOL_WIDGET_GROUP (widget);
PikaToolWidgetGroupPrivate *priv = group->priv;
if (priv->hover_widget)
{
return pika_tool_widget_get_cursor (priv->hover_widget,
coords, state,
cursor, tool_cursor, modifier);
}
return FALSE;
}
static void
pika_tool_widget_group_children_add (PikaContainer *container,
PikaToolWidget *child,
PikaToolWidgetGroup *group)
{
PikaToolWidgetGroupPrivate *priv = group->priv;
PikaToolWidget *widget = PIKA_TOOL_WIDGET (group);
PikaCanvasGroup *canvas_group;
canvas_group = PIKA_CANVAS_GROUP (pika_tool_widget_get_item (widget));
pika_canvas_group_add_item (canvas_group,
pika_tool_widget_get_item (child));
if (pika_tool_widget_get_focus (child) && priv->focus_widget)
{
pika_tool_widget_set_focus (priv->focus_widget, FALSE);
priv->focus_widget = NULL;
}
if (! priv->focus_widget)
{
priv->focus_widget = child;
pika_tool_widget_set_focus (child, pika_tool_widget_get_focus (widget));
}
pika_tool_widget_changed (widget);
}
static void
pika_tool_widget_group_children_remove (PikaContainer *container,
PikaToolWidget *child,
PikaToolWidgetGroup *group)
{
PikaToolWidgetGroupPrivate *priv = group->priv;
PikaToolWidget *widget = PIKA_TOOL_WIDGET (group);
PikaCanvasGroup *canvas_group;
canvas_group = PIKA_CANVAS_GROUP (pika_tool_widget_get_item (widget));
if (priv->focus_widget == child)
{
pika_tool_widget_set_focus (child, FALSE);
priv->focus_widget = NULL;
}
if (priv->hover_widget == child)
{
pika_tool_widget_leave_notify (child);
priv->hover_widget = NULL;
}
if (! priv->focus_widget)
{
priv->focus_widget =
PIKA_TOOL_WIDGET (pika_container_get_last_child (container));
if (priv->focus_widget)
pika_tool_widget_set_focus (priv->focus_widget, TRUE);
}
pika_canvas_group_remove_item (canvas_group,
pika_tool_widget_get_item (child));
pika_tool_widget_changed (widget);
}
static void
pika_tool_widget_group_children_reorder (PikaContainer *container,
PikaToolWidget *child,
gint new_index,
PikaToolWidgetGroup *group)
{
PikaToolWidget *widget = PIKA_TOOL_WIDGET (group);
PikaCanvasGroup *canvas_group;
GList *iter;
canvas_group = PIKA_CANVAS_GROUP (pika_tool_widget_get_item (widget));
for (iter = g_queue_peek_head_link (PIKA_LIST (container)->queue);
iter;
iter = g_list_next (iter))
{
PikaCanvasItem *item = pika_tool_widget_get_item (iter->data);
pika_canvas_group_remove_item (canvas_group, item);
pika_canvas_group_add_item (canvas_group, item);
}
pika_tool_widget_changed (widget);
}
static void
pika_tool_widget_group_child_changed (PikaToolWidget *child,
PikaToolWidgetGroup *group)
{
PikaToolWidget *widget = PIKA_TOOL_WIDGET (group);
pika_tool_widget_changed (widget);
}
static void
pika_tool_widget_group_child_response (PikaToolWidget *child,
gint response_id,
PikaToolWidgetGroup *group)
{
PikaToolWidgetGroupPrivate *priv = group->priv;
PikaToolWidget *widget = PIKA_TOOL_WIDGET (group);
if (priv->focus_widget == child)
pika_tool_widget_response (widget, response_id);
}
static void
pika_tool_widget_group_child_snap_offsets (PikaToolWidget *child,
gint offset_x,
gint offset_y,
gint width,
gint height,
PikaToolWidgetGroup *group)
{
PikaToolWidgetGroupPrivate *priv = group->priv;
PikaToolWidget *widget = PIKA_TOOL_WIDGET (group);
if (priv->hover_widget == child)
{
pika_tool_widget_set_snap_offsets (widget,
offset_x, offset_y, width, height);
}
}
static void
pika_tool_widget_group_child_status (PikaToolWidget *child,
const gchar *status,
PikaToolWidgetGroup *group)
{
PikaToolWidgetGroupPrivate *priv = group->priv;
PikaToolWidget *widget = PIKA_TOOL_WIDGET (group);
if (priv->hover_widget == child)
pika_tool_widget_set_status (widget, status);
}
static void
pika_tool_widget_group_child_status_coords (PikaToolWidget *child,
const gchar *title,
gdouble x,
const gchar *separator,
gdouble y,
const gchar *help,
PikaToolWidgetGroup *group)
{
PikaToolWidgetGroupPrivate *priv = group->priv;
PikaToolWidget *widget = PIKA_TOOL_WIDGET (group);
if (priv->hover_widget == child)
pika_tool_widget_set_status_coords (widget, title, x, separator, y, help);
}
static void
pika_tool_widget_group_child_message (PikaToolWidget *child,
const gchar *message,
PikaToolWidgetGroup *group)
{
PikaToolWidgetGroupPrivate *priv = group->priv;
PikaToolWidget *widget = PIKA_TOOL_WIDGET (group);
if (priv->focus_widget == child)
pika_tool_widget_message_literal (widget, message);
}
static void
pika_tool_widget_group_child_focus_changed (PikaToolWidget *child,
PikaToolWidgetGroup *group)
{
PikaToolWidgetGroupPrivate *priv = group->priv;
PikaToolWidget *widget = PIKA_TOOL_WIDGET (group);
if (pika_tool_widget_get_focus (child))
{
if (priv->focus_widget && priv->focus_widget != child)
pika_tool_widget_set_focus (priv->focus_widget, FALSE);
priv->focus_widget = child;
pika_tool_widget_set_focus (widget, TRUE);
}
else
{
if (priv->focus_widget == child)
priv->focus_widget = NULL;
}
}
static PikaToolWidget *
pika_tool_widget_group_get_hover_widget (PikaToolWidgetGroup *group,
const PikaCoords *coords,
GdkModifierType state,
gboolean proximity,
PikaHit *hit)
{
PikaToolWidgetGroupPrivate *priv = group->priv;
PikaToolWidget *indirect_child = NULL;
gboolean indirect = FALSE;
GList *iter;
for (iter = g_queue_peek_tail_link (PIKA_LIST (priv->children)->queue);
iter;
iter = g_list_previous (iter))
{
PikaToolWidget *child = iter->data;
switch (pika_tool_widget_hit (child, coords, state, proximity))
{
case PIKA_HIT_DIRECT:
if (hit) *hit = PIKA_HIT_DIRECT;
return child;
case PIKA_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 PIKA_HIT_NONE:
break;
}
}
if (hit) *hit = indirect_child ? PIKA_HIT_INDIRECT : PIKA_HIT_NONE;
return indirect_child;
}
/* public functions */
PikaToolWidget *
pika_tool_widget_group_new (PikaDisplayShell *shell)
{
g_return_val_if_fail (PIKA_IS_DISPLAY_SHELL (shell), NULL);
return g_object_new (PIKA_TYPE_TOOL_WIDGET_GROUP,
"shell", shell,
NULL);
}
PikaContainer *
pika_tool_widget_group_get_children (PikaToolWidgetGroup *group)
{
g_return_val_if_fail (PIKA_IS_TOOL_WIDGET_GROUP (group), NULL);
return group->priv->children;
}
PikaToolWidget *
pika_tool_widget_group_get_focus_widget (PikaToolWidgetGroup *group)
{
g_return_val_if_fail (PIKA_IS_TOOL_WIDGET_GROUP (group), NULL);
return group->priv->focus_widget;
}
void
pika_tool_widget_group_set_auto_raise (PikaToolWidgetGroup *group,
gboolean auto_raise)
{
g_return_if_fail (PIKA_IS_TOOL_WIDGET_GROUP (group));
group->priv->auto_raise = auto_raise;
}
gboolean
pika_tool_widget_group_get_auto_raise (PikaToolWidgetGroup *group)
{
g_return_val_if_fail (PIKA_IS_TOOL_WIDGET_GROUP (group), FALSE);
return group->priv->auto_raise;
}