PIKApp/app/widgets/pikatoolbox.c

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2023-09-26 00:35:21 +02:00
/* 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
*
* 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 <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libpikabase/pikabase.h"
#include "libpikawidgets/pikawidgets.h"
#include "widgets-types.h"
#include "config/pikaguiconfig.h"
#include "core/pika.h"
#include "core/pikacontext.h"
#include "core/pikadisplay.h"
#include "file/file-open.h"
#include "pikacairo-mascot.h"
#include "pikadevices.h"
#include "pikadialogfactory.h"
#include "pikadockwindow.h"
#include "pikahelp-ids.h"
#include "pikapanedbox.h"
#include "pikatoolbox.h"
#include "pikatoolbox-color-area.h"
#include "pikatoolbox-dnd.h"
#include "pikatoolbox-image-area.h"
#include "pikatoolbox-indicator-area.h"
#include "pikatoolpalette.h"
#include "pikauimanager.h"
#include "pikawidgets-utils.h"
#include "about.h"
#include "pika-intl.h"
enum
{
PROP_0,
PROP_CONTEXT
};
struct _PikaToolboxPrivate
{
PikaContext *context;
GtkWidget *vbox;
GtkWidget *header;
GtkWidget *tool_palette;
GtkWidget *area_box;
GtkWidget *color_area;
GtkWidget *foo_area;
GtkWidget *image_area;
gint area_rows;
gint area_columns;
PikaPanedBox *drag_handler;
gboolean in_destruction;
};
static void pika_toolbox_constructed (GObject *object);
static void pika_toolbox_dispose (GObject *object);
static void pika_toolbox_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void pika_toolbox_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static gboolean pika_toolbox_button_press_event (GtkWidget *widget,
GdkEventButton *event);
static void pika_toolbox_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time,
PikaToolbox *toolbox);
static gboolean pika_toolbox_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
PikaToolbox *toolbox);
static gboolean pika_toolbox_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
PikaToolbox *toolbox);
static gchar * pika_toolbox_get_description (PikaDock *dock,
gboolean complete);
static void pika_toolbox_set_host_geometry_hints (PikaDock *dock,
GtkWindow *window);
static void pika_toolbox_book_added (PikaDock *dock,
PikaDockbook *dockbook);
static void pika_toolbox_book_removed (PikaDock *dock,
PikaDockbook *dockbook);
static void pika_toolbox_notify_theme (PikaGuiConfig *config,
GParamSpec *pspec,
PikaToolbox *toolbox);
static void pika_toolbox_palette_style_updated (GtkWidget *palette,
PikaToolbox *toolbox);
static void pika_toolbox_mascot_style_updated (GtkWidget *widget,
PikaToolbox *toolbox);
static gboolean pika_toolbox_draw_mascot (GtkWidget *widget,
cairo_t *cr);
static GtkWidget * toolbox_create_color_area (PikaToolbox *toolbox,
PikaContext *context);
static GtkWidget * toolbox_create_foo_area (PikaToolbox *toolbox,
PikaContext *context);
static GtkWidget * toolbox_create_image_area (PikaToolbox *toolbox,
PikaContext *context);
static void toolbox_paste_received (GtkClipboard *clipboard,
const gchar *text,
gpointer data);
G_DEFINE_TYPE_WITH_PRIVATE (PikaToolbox, pika_toolbox, PIKA_TYPE_DOCK)
#define parent_class pika_toolbox_parent_class
static void
pika_toolbox_class_init (PikaToolboxClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
PikaDockClass *dock_class = PIKA_DOCK_CLASS (klass);
object_class->constructed = pika_toolbox_constructed;
object_class->dispose = pika_toolbox_dispose;
object_class->set_property = pika_toolbox_set_property;
object_class->get_property = pika_toolbox_get_property;
widget_class->button_press_event = pika_toolbox_button_press_event;
dock_class->get_description = pika_toolbox_get_description;
dock_class->set_host_geometry_hints = pika_toolbox_set_host_geometry_hints;
dock_class->book_added = pika_toolbox_book_added;
dock_class->book_removed = pika_toolbox_book_removed;
g_object_class_install_property (object_class, PROP_CONTEXT,
g_param_spec_object ("context",
NULL, NULL,
PIKA_TYPE_CONTEXT,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
}
static void
pika_toolbox_init (PikaToolbox *toolbox)
{
toolbox->p = pika_toolbox_get_instance_private (toolbox);
pika_help_connect (GTK_WIDGET (toolbox), pika_standard_help_func,
PIKA_HELP_TOOLBOX, NULL, NULL);
}
static void
pika_toolbox_constructed (GObject *object)
{
PikaToolbox *toolbox = PIKA_TOOLBOX (object);
PikaGuiConfig *config;
GtkWidget *main_vbox;
GtkWidget *event_box;
pika_assert (PIKA_IS_CONTEXT (toolbox->p->context));
config = PIKA_GUI_CONFIG (toolbox->p->context->pika->config);
main_vbox = pika_dock_get_main_vbox (PIKA_DOCK (toolbox));
toolbox->p->vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_box_pack_start (GTK_BOX (main_vbox), toolbox->p->vbox, FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (main_vbox), toolbox->p->vbox, 0);
gtk_widget_show (toolbox->p->vbox);
/* Use g_signal_connect() also for the toolbox itself so we can pass
* data and reuse the same function for the vbox
*/
g_signal_connect (toolbox, "drag-leave",
G_CALLBACK (pika_toolbox_drag_leave),
toolbox);
g_signal_connect (toolbox, "drag-motion",
G_CALLBACK (pika_toolbox_drag_motion),
toolbox);
g_signal_connect (toolbox, "drag-drop",
G_CALLBACK (pika_toolbox_drag_drop),
toolbox);
g_signal_connect (toolbox->p->vbox, "drag-leave",
G_CALLBACK (pika_toolbox_drag_leave),
toolbox);
g_signal_connect (toolbox->p->vbox, "drag-motion",
G_CALLBACK (pika_toolbox_drag_motion),
toolbox);
g_signal_connect (toolbox->p->vbox, "drag-drop",
G_CALLBACK (pika_toolbox_drag_drop),
toolbox);
event_box = gtk_event_box_new ();
gtk_box_pack_start (GTK_BOX (toolbox->p->vbox), event_box, FALSE, FALSE, 0);
g_signal_connect_swapped (event_box, "button-press-event",
G_CALLBACK (pika_toolbox_button_press_event),
toolbox);
gtk_widget_show (event_box);
toolbox->p->header = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (toolbox->p->header), GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (event_box), toolbox->p->header);
g_object_bind_property (config, "toolbox-mascot",
toolbox->p->header, "visible",
G_BINDING_SYNC_CREATE);
g_signal_connect (toolbox->p->header, "style-updated",
G_CALLBACK (pika_toolbox_mascot_style_updated),
toolbox);
g_signal_connect (toolbox->p->header, "draw",
G_CALLBACK (pika_toolbox_draw_mascot),
toolbox);
pika_help_set_help_data (toolbox->p->header,
_("Drop image files here to open them"), NULL);
toolbox->p->tool_palette = pika_tool_palette_new ();
pika_tool_palette_set_toolbox (PIKA_TOOL_PALETTE (toolbox->p->tool_palette),
toolbox);
gtk_box_pack_start (GTK_BOX (toolbox->p->vbox), toolbox->p->tool_palette,
FALSE, FALSE, 0);
gtk_widget_show (toolbox->p->tool_palette);
toolbox->p->area_box = gtk_flow_box_new ();
gtk_flow_box_set_selection_mode (GTK_FLOW_BOX (toolbox->p->area_box),
GTK_SELECTION_NONE);
gtk_box_pack_start (GTK_BOX (toolbox->p->vbox), toolbox->p->area_box,
FALSE, FALSE, 0);
gtk_widget_show (toolbox->p->area_box);
gtk_widget_add_events (GTK_WIDGET (toolbox), GDK_POINTER_MOTION_MASK);
pika_devices_add_widget (toolbox->p->context->pika, GTK_WIDGET (toolbox));
toolbox->p->color_area = toolbox_create_color_area (toolbox,
toolbox->p->context);
gtk_flow_box_insert (GTK_FLOW_BOX (toolbox->p->area_box),
toolbox->p->color_area, -1);
g_object_bind_property (config, "toolbox-color-area",
toolbox->p->color_area, "visible",
G_BINDING_SYNC_CREATE);
toolbox->p->foo_area = toolbox_create_foo_area (toolbox, toolbox->p->context);
gtk_flow_box_insert (GTK_FLOW_BOX (toolbox->p->area_box),
toolbox->p->foo_area, -1);
g_object_bind_property (config, "toolbox-foo-area",
toolbox->p->foo_area, "visible",
G_BINDING_SYNC_CREATE);
toolbox->p->image_area = toolbox_create_image_area (toolbox,
toolbox->p->context);
gtk_flow_box_insert (GTK_FLOW_BOX (toolbox->p->area_box),
toolbox->p->image_area, -1);
g_object_bind_property (config, "toolbox-image-area",
toolbox->p->image_area, "visible",
G_BINDING_SYNC_CREATE);
pika_toolbox_dnd_init (PIKA_TOOLBOX (toolbox), toolbox->p->vbox);
}
static void
pika_toolbox_dispose (GObject *object)
{
PikaToolbox *toolbox = PIKA_TOOLBOX (object);
toolbox->p->in_destruction = TRUE;
g_clear_object (&toolbox->p->context);
G_OBJECT_CLASS (parent_class)->dispose (object);
toolbox->p->in_destruction = FALSE;
}
static void
pika_toolbox_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
PikaToolbox *toolbox = PIKA_TOOLBOX (object);
switch (property_id)
{
case PROP_CONTEXT:
toolbox->p->context = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_toolbox_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
PikaToolbox *toolbox = PIKA_TOOLBOX (object);
switch (property_id)
{
case PROP_CONTEXT:
g_value_set_object (value, toolbox->p->context);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static gboolean
pika_toolbox_button_press_event (GtkWidget *widget,
GdkEventButton *event)
{
PikaToolbox *toolbox = PIKA_TOOLBOX (widget);
PikaDisplay *display;
gboolean stop_event = GDK_EVENT_PROPAGATE;
if (event->type == GDK_BUTTON_PRESS && event->button == 2)
{
GtkClipboard *clipboard;
clipboard = gtk_widget_get_clipboard (widget, GDK_SELECTION_PRIMARY);
gtk_clipboard_request_text (clipboard,
toolbox_paste_received,
g_object_ref (toolbox));
stop_event = GDK_EVENT_STOP;
}
else if ((display = pika_context_get_display (toolbox->p->context)))
{
/* Any button event in empty spaces or the Wilber area gives focus
* to the top image.
*/
pika_display_grab_focus (display);
}
return stop_event;
}
static void
pika_toolbox_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time,
PikaToolbox *toolbox)
{
pika_highlight_widget (widget, FALSE, NULL);
}
static gboolean
pika_toolbox_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
PikaToolbox *toolbox)
{
gboolean handle;
if (pika_paned_box_will_handle_drag (toolbox->p->drag_handler,
widget,
context,
x, y,
time))
{
gdk_drag_status (context, 0, time);
pika_highlight_widget (widget, FALSE, NULL);
return FALSE;
}
handle = (gtk_drag_dest_find_target (widget, context, NULL) != GDK_NONE);
gdk_drag_status (context, handle ? GDK_ACTION_MOVE : 0, time);
pika_highlight_widget (widget, handle, NULL);
/* Return TRUE so drag_leave() is called */
return TRUE;
}
static gboolean
pika_toolbox_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
PikaToolbox *toolbox)
{
GdkAtom target;
gboolean dropped = FALSE;
if (pika_paned_box_will_handle_drag (toolbox->p->drag_handler,
widget,
context,
x, y,
time))
{
return FALSE;
}
target = gtk_drag_dest_find_target (widget, context, NULL);
if (target != GDK_NONE)
{
/* The URI handlers etc will handle this */
gtk_drag_get_data (widget, context, target, time);
dropped = TRUE;
}
else
{
gtk_drag_finish (context, FALSE,
gdk_drag_context_get_selected_action (context) ==
GDK_ACTION_MOVE,
time);
}
return dropped;
}
static gchar *
pika_toolbox_get_description (PikaDock *dock,
gboolean complete)
{
GString *desc = g_string_new (_("Toolbox"));
gchar *dock_desc = PIKA_DOCK_CLASS (parent_class)->get_description (dock,
complete);
if (dock_desc && strlen (dock_desc) > 0)
{
g_string_append (desc, PIKA_DOCK_BOOK_SEPARATOR);
g_string_append (desc, dock_desc);
}
g_free (dock_desc);
return g_string_free (desc, FALSE /*free_segment*/);
}
static void
pika_toolbox_book_added (PikaDock *dock,
PikaDockbook *dockbook)
{
if (PIKA_DOCK_CLASS (parent_class)->book_added)
PIKA_DOCK_CLASS (parent_class)->book_added (dock, dockbook);
if (g_list_length (pika_dock_get_dockbooks (dock)) == 1)
{
pika_dock_invalidate_geometry (dock);
}
}
static void
pika_toolbox_book_removed (PikaDock *dock,
PikaDockbook *dockbook)
{
PikaToolbox *toolbox = PIKA_TOOLBOX (dock);
if (PIKA_DOCK_CLASS (parent_class)->book_removed)
PIKA_DOCK_CLASS (parent_class)->book_removed (dock, dockbook);
if (! pika_dock_get_dockbooks (dock) &&
! toolbox->p->in_destruction)
{
pika_dock_invalidate_geometry (dock);
}
}
static void
pika_toolbox_set_host_geometry_hints (PikaDock *dock,
GtkWindow *window)
{
PikaToolbox *toolbox = PIKA_TOOLBOX (dock);
gint button_width;
gint button_height;
if (pika_tool_palette_get_button_size (PIKA_TOOL_PALETTE (toolbox->p->tool_palette),
&button_width, &button_height))
{
GdkGeometry geometry;
geometry.min_width = 2 * button_width;
geometry.min_height = -1;
geometry.base_width = button_width;
geometry.base_height = 0;
geometry.width_inc = button_width;
geometry.height_inc = 1;
gtk_window_set_geometry_hints (window,
NULL,
&geometry,
GDK_HINT_MIN_SIZE |
GDK_HINT_BASE_SIZE |
GDK_HINT_RESIZE_INC |
GDK_HINT_USER_POS);
pika_dialog_factory_set_has_min_size (window, TRUE);
}
}
GtkWidget *
pika_toolbox_new (PikaDialogFactory *factory,
PikaContext *context,
PikaUIManager *ui_manager)
{
g_return_val_if_fail (PIKA_IS_DIALOG_FACTORY (factory), NULL);
g_return_val_if_fail (PIKA_IS_CONTEXT (context), NULL);
g_return_val_if_fail (PIKA_IS_UI_MANAGER (ui_manager), NULL);
return g_object_new (PIKA_TYPE_TOOLBOX,
"context", context,
NULL);
}
PikaContext *
pika_toolbox_get_context (PikaToolbox *toolbox)
{
g_return_val_if_fail (PIKA_IS_TOOLBOX (toolbox), NULL);
return toolbox->p->context;
}
void
pika_toolbox_set_drag_handler (PikaToolbox *toolbox,
PikaPanedBox *drag_handler)
{
g_return_if_fail (PIKA_IS_TOOLBOX (toolbox));
toolbox->p->drag_handler = drag_handler;
}
/* private functions */
static void
pika_toolbox_notify_theme (PikaGuiConfig *config,
GParamSpec *pspec,
PikaToolbox *toolbox)
{
pika_toolbox_palette_style_updated (GTK_WIDGET (toolbox->p->tool_palette), toolbox);
}
static void
pika_toolbox_palette_style_updated (GtkWidget *widget,
PikaToolbox *toolbox)
{
GtkIconSize tool_icon_size = GTK_ICON_SIZE_LARGE_TOOLBAR;
gint icon_width = 40;
gint icon_height = 38;
gtk_widget_style_get (widget,
"tool-icon-size", &tool_icon_size,
NULL);
gtk_icon_size_lookup (tool_icon_size, &icon_width, &icon_height);
gtk_widget_set_size_request (toolbox->p->color_area,
(gint) (icon_width * 1.75),
(gint) (icon_height * 1.75));
gtk_widget_queue_resize (toolbox->p->color_area);
}
static void
pika_toolbox_mascot_style_updated (GtkWidget *widget,
PikaToolbox *toolbox)
{
gint button_width;
gint button_height;
if (pika_tool_palette_get_button_size (PIKA_TOOL_PALETTE (toolbox->p->tool_palette),
&button_width, &button_height))
{
gtk_widget_set_size_request (widget,
button_width * PANGO_SCALE_SMALL,
button_height * PANGO_SCALE_SMALL);
}
}
static gboolean
pika_toolbox_draw_mascot (GtkWidget *widget,
cairo_t *cr)
{
pika_cairo_draw_toolbox_mascot (widget, cr);
return FALSE;
}
static GtkWidget *
toolbox_create_color_area (PikaToolbox *toolbox,
PikaContext *context)
{
GtkWidget *col_area;
GtkIconSize tool_icon_size = GTK_ICON_SIZE_LARGE_TOOLBAR;
gint icon_width = 40;
gint icon_height = 38;
gtk_widget_style_get (GTK_WIDGET (toolbox->p->tool_palette),
"tool-icon-size", &tool_icon_size,
NULL);
gtk_icon_size_lookup (tool_icon_size, &icon_width, &icon_height);
col_area = pika_toolbox_color_area_create (toolbox,
(gint) (icon_width * 1.75),
(gint) (icon_height * 1.75));
g_object_set (col_area,
"halign", GTK_ALIGN_CENTER,
"valign", GTK_ALIGN_CENTER,
"margin-left", 2,
"margin-right", 2,
"margin-top", 2,
"margin-bottom", 2,
NULL);
g_signal_connect (toolbox->p->tool_palette, "style-updated",
G_CALLBACK (pika_toolbox_palette_style_updated),
toolbox);
g_signal_connect_after (PIKA_GUI_CONFIG (toolbox->p->context->pika->config),
"notify::theme",
G_CALLBACK (pika_toolbox_notify_theme),
toolbox);
g_signal_connect_after (PIKA_GUI_CONFIG (toolbox->p->context->pika->config),
"notify::override-theme-icon-size",
G_CALLBACK (pika_toolbox_notify_theme),
toolbox);
g_signal_connect_after (PIKA_GUI_CONFIG (toolbox->p->context->pika->config),
"notify::custom-icon-size",
G_CALLBACK (pika_toolbox_notify_theme),
toolbox);
return col_area;
}
static GtkWidget *
toolbox_create_foo_area (PikaToolbox *toolbox,
PikaContext *context)
{
GtkWidget *foo_area;
foo_area = pika_toolbox_indicator_area_create (toolbox);
g_object_set (foo_area,
"halign", GTK_ALIGN_CENTER,
"valign", GTK_ALIGN_CENTER,
"margin-left", 2,
"margin-right", 2,
"margin-top", 2,
"margin-bottom", 2,
NULL);
return foo_area;
}
static GtkWidget *
toolbox_create_image_area (PikaToolbox *toolbox,
PikaContext *context)
{
GtkWidget *image_area;
image_area = pika_toolbox_image_area_create (toolbox, 52, 42);
g_object_set (image_area,
"halign", GTK_ALIGN_CENTER,
"valign", GTK_ALIGN_CENTER,
"margin-left", 2,
"margin-right", 2,
"margin-top", 2,
"margin-bottom", 2,
NULL);
return image_area;
}
static void
toolbox_paste_received (GtkClipboard *clipboard,
const gchar *text,
gpointer data)
{
PikaToolbox *toolbox = PIKA_TOOLBOX (data);
PikaContext *context = toolbox->p->context;
if (text)
{
const gchar *newline = strchr (text, '\n');
gchar *copy;
GFile *file = NULL;
if (newline)
copy = g_strndup (text, newline - text);
else
copy = g_strdup (text);
g_strstrip (copy);
if (strlen (copy))
file = g_file_new_for_commandline_arg (copy);
g_free (copy);
if (file)
{
GtkWidget *widget = GTK_WIDGET (toolbox);
PikaImage *image;
PikaDisplay *display;
PikaPDBStatusType status;
GError *error = NULL;
image = file_open_with_display (context->pika, context, NULL,
file, FALSE,
G_OBJECT (pika_widget_get_monitor (widget)),
&status, &error);
if (! image && status != PIKA_PDB_CANCEL)
{
pika_message (context->pika, NULL, PIKA_MESSAGE_ERROR,
_("Opening '%s' failed:\n\n%s"),
pika_file_get_utf8_name (file), error->message);
g_clear_error (&error);
}
else if ((display = pika_context_get_display (context)))
{
/* Giving focus to newly opened image. */
pika_display_grab_focus (display);
}
g_object_unref (file);
}
}
g_object_unref (toolbox);
}