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gimp/app/tools/gimptexttool.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpTextTool
* Copyright (C) 2002-2004 Sven Neumann <sven@gimp.org>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpimage-undo.h"
#include "core/gimpimage-undo-push.h"
#include "core/gimplayer-floating-sel.h"
#include "core/gimptoolinfo.h"
#include "core/gimpundostack.h"
#include "text/gimptext.h"
#include "text/gimptext-vectors.h"
#include "text/gimptextlayer.h"
#include "text/gimptextlayout.h"
#include "text/gimptextundo.h"
#include "vectors/gimpvectors-warp.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpmenufactory.h"
#include "widgets/gimptexteditor.h"
#include "widgets/gimpuimanager.h"
#include "widgets/gimpviewabledialog.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "gimpeditselectiontool.h"
#include "gimprectangletool.h"
#include "gimprectangleoptions.h"
#include "gimptextoptions.h"
#include "gimptexttool.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
#define TEXT_UNDO_TIMEOUT 3
/* local function prototypes */
static void gimp_text_tool_rectangle_tool_iface_init (GimpRectangleToolInterface *iface);
static GObject * gimp_text_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_text_tool_dispose (GObject *object);
static void gimp_text_tool_finalize (GObject *object);
static void gimp_text_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display);
static void gimp_text_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
static void gimp_text_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display);
static void gimp_text_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
static gboolean gimp_text_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display);
static void gimp_text_tool_oper_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display);
static void gimp_text_tool_cursor_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display);
static GimpUIManager * gimp_text_tool_get_popup (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display,
const gchar **ui_path);
static void gimp_text_tool_draw (GimpDrawTool *draw_tool);
static void gimp_text_tool_draw_preedit (GimpDrawTool *draw_tool,
gint logical_off_x,
gint logical_off_y);
static void gimp_text_tool_draw_selection (GimpDrawTool *draw_tool,
gint logical_off_x,
gint logical_off_y);
static gboolean gimp_text_tool_rectangle_change_complete
(GimpRectangleTool *rect_tool);
static void gimp_text_tool_connect (GimpTextTool *text_tool,
GimpTextLayer *layer,
GimpText *text);
static void gimp_text_tool_layer_notify (GimpTextLayer *layer,
GParamSpec *pspec,
GimpTextTool *text_tool);
static void gimp_text_tool_proxy_notify (GimpText *text,
GParamSpec *pspec,
GimpTextTool *text_tool);
static void gimp_text_tool_text_notify (GimpText *text,
GParamSpec *pspec,
GimpTextTool *text_tool);
static gboolean gimp_text_tool_idle_apply (GimpTextTool *text_tool);
static void gimp_text_tool_apply (GimpTextTool *text_tool);
static void gimp_text_tool_create_layer (GimpTextTool *text_tool,
GimpText *text);
static void gimp_text_tool_editor (GimpTextTool *text_tool);
static void gimp_text_tool_canvas_editor (GimpTextTool *text_tool);
static gchar * gimp_text_tool_canvas_editor_get_text
(GimpTextTool *text_tool);
static void gimp_text_tool_layer_changed (GimpImage *image,
GimpTextTool *text_tool);
static void gimp_text_tool_set_image (GimpTextTool *text_tool,
GimpImage *image);
static gboolean gimp_text_tool_set_drawable (GimpTextTool *text_tool,
GimpDrawable *drawable,
gboolean confirm);
static void gimp_text_tool_update_layout (GimpTextTool *text_tool);
static void gimp_text_tool_update_proxy (GimpTextTool *text_tool);
static void gimp_text_tool_enter_text (GimpTextTool *text_tool,
const gchar *str);
static void gimp_text_tool_text_buffer_changed (GtkTextBuffer *text_buffer,
GimpTextTool *text_tool);
static void gimp_text_tool_text_buffer_mark_set (GtkTextBuffer *text_buffer,
GtkTextIter *location,
GtkTextMark *mark,
GimpTextTool *text_tool);
static void gimp_text_tool_use_editor_notify (GimpTextOptions *options,
GParamSpec *pspec,
GimpTextTool *text_tool);
static gint gimp_text_tool_xy_to_offset (GimpTextTool *text_tool,
gdouble x,
gdouble y);
/* IM context utilities and callbacks */
static void gimp_text_tool_reset_im_context (GimpTextTool *text_tool);
static void gimp_text_tool_commit_cb (GtkIMContext *context,
const gchar *str,
GimpTextTool *text_tool);
static void gimp_text_tool_preedit_changed_cb (GtkIMContext *context,
GimpTextTool *text_tool);
G_DEFINE_TYPE_WITH_CODE (GimpTextTool, gimp_text_tool,
GIMP_TYPE_DRAW_TOOL,
G_IMPLEMENT_INTERFACE (GIMP_TYPE_RECTANGLE_TOOL,
gimp_text_tool_rectangle_tool_iface_init))
#define parent_class gimp_text_tool_parent_class
void
gimp_text_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_TEXT_TOOL,
GIMP_TYPE_TEXT_OPTIONS,
gimp_text_options_gui,
GIMP_CONTEXT_FOREGROUND_MASK |
GIMP_CONTEXT_FONT_MASK |
GIMP_CONTEXT_PALETTE_MASK /* for the color popup's palette tab */,
"gimp-text-tool",
_("Text"),
_("Text Tool: Create or edit text layers"),
N_("Te_xt"), "T",
NULL, GIMP_HELP_TOOL_TEXT,
GIMP_STOCK_TOOL_TEXT,
data);
}
static void
gimp_text_tool_class_init (GimpTextToolClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpDrawToolClass *draw_tool_class = GIMP_DRAW_TOOL_CLASS (klass);
object_class->constructor = gimp_text_tool_constructor;
object_class->dispose = gimp_text_tool_dispose;
object_class->finalize = gimp_text_tool_finalize;
object_class->set_property = gimp_rectangle_tool_set_property;
object_class->get_property = gimp_rectangle_tool_get_property;
tool_class->control = gimp_text_tool_control;
tool_class->button_press = gimp_text_tool_button_press;
tool_class->motion = gimp_text_tool_motion;
tool_class->button_release = gimp_text_tool_button_release;
tool_class->key_press = gimp_text_tool_key_press;
tool_class->oper_update = gimp_text_tool_oper_update;
tool_class->cursor_update = gimp_text_tool_cursor_update;
tool_class->get_popup = gimp_text_tool_get_popup;
draw_tool_class->draw = gimp_text_tool_draw;
gimp_rectangle_tool_install_properties (object_class);
}
static void
gimp_text_tool_rectangle_tool_iface_init (GimpRectangleToolInterface *iface)
{
iface->execute = NULL;
iface->cancel = NULL;
iface->rectangle_change_complete = gimp_text_tool_rectangle_change_complete;
}
static void
gimp_text_tool_init (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
text_tool->proxy = NULL;
text_tool->pending = NULL;
text_tool->idle_id = 0;
text_tool->text = NULL;
text_tool->layer = NULL;
text_tool->image = NULL;
text_tool->layout = NULL;
text_tool->text_buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_set_text (text_tool->text_buffer, "", -1);
g_signal_connect (text_tool->text_buffer, "changed",
G_CALLBACK (gimp_text_tool_text_buffer_changed),
text_tool);
g_signal_connect (text_tool->text_buffer, "mark-set",
G_CALLBACK (gimp_text_tool_text_buffer_mark_set),
text_tool);
text_tool->im_context = gtk_im_multicontext_new ();
text_tool->preedit_string = NULL;
g_signal_connect (text_tool->im_context, "commit",
G_CALLBACK (gimp_text_tool_commit_cb),
text_tool);
g_signal_connect (text_tool->im_context, "preedit-changed",
G_CALLBACK (gimp_text_tool_preedit_changed_cb),
text_tool);
gimp_tool_control_set_scroll_lock (tool->control, TRUE);
gimp_tool_control_set_wants_all_key_events (tool->control, TRUE);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_TEXT);
gimp_tool_control_set_action_object_1 (tool->control,
"context/context-font-select-set");
text_tool->handle_rectangle_change_complete = TRUE;
text_tool->x_pos = -1;
}
static GObject *
gimp_text_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpTextTool *text_tool;
GimpTextOptions *options;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
gimp_rectangle_tool_constructor (object);
text_tool = GIMP_TEXT_TOOL (object);
options = GIMP_TEXT_TOOL_GET_OPTIONS (text_tool);
text_tool->proxy = g_object_new (GIMP_TYPE_TEXT, NULL);
gimp_text_options_connect_text (options, text_tool->proxy);
g_signal_connect_object (text_tool->proxy, "notify",
G_CALLBACK (gimp_text_tool_proxy_notify),
text_tool, 0);
g_signal_connect_object (options, "notify::use-editor",
G_CALLBACK (gimp_text_tool_use_editor_notify),
text_tool, 0);
g_object_set (options,
"highlight", FALSE,
NULL);
return object;
}
static void
gimp_text_tool_dispose (GObject *object)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (object);
gimp_text_tool_set_drawable (text_tool, NULL, FALSE);
if (text_tool->editor)
gtk_widget_destroy (text_tool->editor);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_text_tool_finalize (GObject *object)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (object);
if (text_tool->proxy)
{
g_object_unref (text_tool->proxy);
text_tool->proxy = NULL;
}
if (text_tool->layout)
{
g_object_unref (text_tool->layout);
text_tool->layout = NULL;
}
if (text_tool->text_buffer)
{
g_object_unref (text_tool->text_buffer);
text_tool->text_buffer = NULL;
}
if (text_tool->im_context)
{
g_object_unref (text_tool->im_context);
text_tool->im_context = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_text_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (tool);
gimp_rectangle_tool_control (tool, action, display);
switch (action)
{
case GIMP_TOOL_ACTION_PAUSE:
case GIMP_TOOL_ACTION_RESUME:
break;
case GIMP_TOOL_ACTION_HALT:
gimp_text_tool_set_drawable (text_tool, NULL, FALSE);
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
gimp_text_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (tool);
GimpRectangleTool *rect_tool = GIMP_RECTANGLE_TOOL (tool);
GimpText *text = text_tool->text;
GimpDrawable *drawable;
gint x1, y1;
gint x2, y2;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
g_signal_handlers_block_by_func (text_tool->text_buffer,
gimp_text_tool_text_buffer_mark_set,
text_tool);
g_object_get (rect_tool,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
if (coords->x > x1 && coords->x <= x2 &&
coords->y > y1 && coords->y <= y2 &&
! text_tool->moving)
{
text_tool->text_cursor_changing = TRUE;
gimp_rectangle_tool_set_function (rect_tool, GIMP_RECTANGLE_TOOL_DEAD);
gimp_tool_control_activate (tool->control);
}
else
{
text_tool->text_cursor_changing = FALSE;
gimp_rectangle_tool_button_press (tool, coords, time, state, display);
}
/* bail out now if the rectangle is narrow and the button press is
* outside the layer
*/
if (text_tool->layer &&
gimp_rectangle_tool_get_function (rect_tool) !=
GIMP_RECTANGLE_TOOL_CREATING)
{
GimpItem *item = GIMP_ITEM (text_tool->layer);
gdouble x = coords->x - gimp_item_get_offset_x (item);
gdouble y = coords->y - gimp_item_get_offset_y (item);
if (x < 0 || x > item->width ||
y < 0 || y > item->height)
{
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
return;
}
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
drawable = gimp_image_get_active_drawable (display->image);
gimp_text_tool_set_drawable (text_tool, drawable, FALSE);
if (GIMP_IS_LAYER (drawable))
{
GimpItem *item = GIMP_ITEM (drawable);
gdouble x = coords->x - gimp_item_get_offset_x (item);
gdouble y = coords->y - gimp_item_get_offset_y (item);
if (x > 0 && x < gimp_item_get_width (item) &&
y > 0 && y < gimp_item_get_height (item))
{
/* did the user click on a text layer? */
if (gimp_text_tool_set_drawable (text_tool, drawable, TRUE))
{
/* enable keyboard-handling for the text */
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
if (text && text_tool->text == text)
{
gimp_text_tool_canvas_editor (text_tool);
gtk_text_buffer_set_text (text_tool->text_buffer,
text_tool->text->text, -1);
gimp_text_tool_update_layout (text_tool);
}
if (text_tool->layout && ! text_tool->moving)
{
GtkTextIter cursor;
gint offset;
offset = gimp_text_tool_xy_to_offset (text_tool, x, y);
gtk_text_buffer_get_iter_at_offset (text_tool->text_buffer,
&cursor, offset);
gtk_text_buffer_place_cursor (text_tool->text_buffer,
&cursor);
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
return;
}
}
}
/* create a new text layer */
text_tool->text_box_fixed = FALSE;
if (text_tool->text)
{
g_object_unref (text_tool->text);
text_tool->text = NULL;
}
gtk_text_buffer_set_text (text_tool->text_buffer, "", -1);
gimp_text_tool_connect (text_tool, NULL, NULL);
gimp_text_tool_canvas_editor (text_tool);
}
#define MIN_LAYER_WIDTH 20
/*
* Here is what we want to do:
* 1) If the user clicked on an existing text layer, and no rectangle
* yet exists there, we want to create one with the right shape.
* 2) If the user has modified the rectangle for an existing text layer,
* we want to change its shape accordingly. We do this by falling
* through to code that causes the "rectangle-change-complete" signal
* to be emitted.
* 3) If the rectangle that has been swept out is too small, we want to
* use dynamic text.
* 4) Otherwise, we want to use the new rectangle that the user has
* created as our text box. This again is done by causing
* "rectangle-change-complete" to be emitted.
*/
static void
gimp_text_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpRectangleTool *rect_tool = GIMP_RECTANGLE_TOOL (tool);
GimpTextTool *text_tool = GIMP_TEXT_TOOL (tool);
GimpText *text = text_tool->text;
gint x1, y1;
gint x2, y2;
g_object_get (text_tool,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
if (gtk_text_buffer_get_has_selection (text_tool->text_buffer))
gimp_text_tool_clipboard_copy (text_tool, FALSE);
text_tool->text_cursor_changing = FALSE;
if (text && text_tool->text == text)
{
if (gimp_rectangle_tool_rectangle_is_new (rect_tool))
{
/* user has clicked on an existing text layer */
gimp_tool_control_halt (tool->control);
text_tool->handle_rectangle_change_complete = FALSE;
gimp_rectangle_tool_frame_item (rect_tool,
GIMP_ITEM (text_tool->layer));
text_tool->handle_rectangle_change_complete = TRUE;
g_signal_handlers_unblock_by_func (text_tool->text_buffer,
gimp_text_tool_text_buffer_mark_set,
text_tool);
return;
}
else if (! text_tool->moving)
{
/* user has selected text */
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
if (text_tool->layout && text_tool->text_cursor_changing)
{
GimpItem *item = GIMP_ITEM (text_tool->layer);
gdouble x = coords->x - gimp_item_get_offset_x (item);
gdouble y = coords->y - gimp_item_get_offset_y (item);
GtkTextIter cursor;
gint offset;
offset = gimp_text_tool_xy_to_offset (text_tool, x, y);
gtk_text_buffer_get_iter_at_offset (text_tool->text_buffer,
&cursor, offset);
gtk_text_buffer_move_mark_by_name (text_tool->text_buffer,
"selection_bound", &cursor);
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
}
else if (y2 - y1 < MIN_LAYER_WIDTH)
{
/* user has clicked in dead space */
if (GIMP_IS_TEXT (text_tool->proxy))
g_object_set (text_tool->proxy,
"box-mode", GIMP_TEXT_BOX_DYNAMIC,
NULL);
text_tool->handle_rectangle_change_complete = FALSE;
}
else
{
/* user has defined box for a new text layer */
}
gimp_rectangle_tool_button_release (tool, coords, time, state,
release_type, display);
text_tool->handle_rectangle_change_complete = TRUE;
g_signal_handlers_unblock_by_func (text_tool->text_buffer,
gimp_text_tool_text_buffer_mark_set,
text_tool);
}
void
gimp_text_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (tool);
if (text_tool->text_cursor_changing)
{
if (text_tool->layout)
{
GimpItem *item = GIMP_ITEM (text_tool->layer);
gdouble x = coords->x - gimp_item_get_offset_x (item);
gdouble y = coords->y - gimp_item_get_offset_y (item);
GtkTextIter cursor;
GtkTextIter old_selection_bound;
GtkTextMark *selection_mark;
gint offset;
gint old_cursor_offset;
offset = gimp_text_tool_xy_to_offset (text_tool, x, y);
selection_mark = gtk_text_buffer_get_selection_bound (text_tool->text_buffer);
gtk_text_buffer_get_iter_at_mark (text_tool->text_buffer,
&old_selection_bound,
selection_mark);
old_cursor_offset = gtk_text_iter_get_offset (&old_selection_bound);
if (offset == old_cursor_offset)
return;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
gtk_text_buffer_get_iter_at_offset (text_tool->text_buffer,
&cursor, offset);
gtk_text_buffer_move_mark_by_name (text_tool->text_buffer,
"selection_bound", &cursor);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
}
}
else
{
gimp_rectangle_tool_motion (tool, coords, time, state, display);
}
}
static gboolean
gimp_text_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (tool);
GtkTextMark *insert;
GtkTextMark *selection_bound;
GtkTextIter cursor, selection;
GtkTextIter *sel_start;
gint x_pos = -1;
gboolean retval = TRUE;
if (display != tool->display)
return FALSE;
if (gtk_im_context_filter_keypress (text_tool->im_context, kevent))
{
text_tool->needs_im_reset = TRUE;
text_tool->x_pos = -1;
return TRUE;
}
insert = gtk_text_buffer_get_insert (text_tool->text_buffer);
selection_bound = gtk_text_buffer_get_selection_bound (text_tool->text_buffer);
gtk_text_buffer_get_iter_at_mark (text_tool->text_buffer,
&cursor, insert);
gtk_text_buffer_get_iter_at_mark (text_tool->text_buffer,
&selection, selection_bound);
if (kevent->state & GDK_SHIFT_MASK)
sel_start = &cursor;
else
sel_start = &selection;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (tool));
switch (kevent->keyval)
{
case GDK_Return:
case GDK_KP_Enter:
case GDK_ISO_Enter:
gimp_text_tool_enter_text (text_tool, "\n");
gimp_text_tool_reset_im_context (text_tool);
gimp_text_tool_update_layout (text_tool);
break;
case GDK_Tab:
case GDK_KP_Tab:
case GDK_ISO_Left_Tab:
gimp_text_tool_enter_text (text_tool, "\t");
gimp_text_tool_reset_im_context (text_tool);
gimp_text_tool_update_layout (text_tool);
break;
case GDK_BackSpace:
gimp_text_tool_delete_text (text_tool, TRUE);
break;
case GDK_Delete:
gimp_text_tool_delete_text (text_tool, FALSE);
break;
case GDK_Left:
case GDK_KP_Left:
if (kevent->state & GDK_CONTROL_MASK)
{
gtk_text_iter_backward_visible_word_starts (&selection, 1);
}
else
{
gtk_text_iter_backward_cursor_position (&selection);
}
gtk_text_buffer_select_range (text_tool->text_buffer, sel_start,
&selection);
break;
case GDK_Right:
case GDK_KP_Right:
if (kevent->state & GDK_CONTROL_MASK)
{
if (! gtk_text_iter_forward_visible_word_ends (&selection, 1))
gtk_text_iter_forward_to_line_end (&selection);
}
else
{
gtk_text_iter_forward_cursor_position (&selection);
}
gtk_text_buffer_select_range (text_tool->text_buffer, sel_start,
&selection);
gimp_text_tool_reset_im_context (text_tool);
break;
case GDK_Up:
case GDK_KP_Up:
case GDK_Down:
case GDK_KP_Down:
{
PangoLayout *layout;
PangoLayoutLine *layout_line;
PangoLayoutIter *layout_iter;
PangoRectangle logical;
gint line;
gint line_index;
gint trailing;
gint i;
layout = gimp_text_layout_get_pango_layout (text_tool->layout);
line = gtk_text_iter_get_line (&selection);
line_index = gtk_text_iter_get_line_index (&selection);
layout_iter = pango_layout_get_iter (layout);
for (i = 0; i < line; i++)
pango_layout_iter_next_line (layout_iter);
layout_line = pango_layout_iter_get_line_readonly (layout_iter);
pango_layout_line_index_to_x (layout_line,
layout_line->start_index + line_index,
FALSE, &x_pos);
pango_layout_iter_get_line_extents (layout_iter, NULL, &logical);
x_pos += logical.x;
pango_layout_iter_free (layout_iter);
/* try to go to the remembered x_pos if it exists *and* we are at
* the beginning or at the end of the current line
*/
if (text_tool->x_pos != -1 && (line_index == layout_line->length ||
line_index == 0))
x_pos = text_tool->x_pos;
if (kevent->keyval == GDK_Up ||
kevent->keyval == GDK_KP_Up)
{
line--;
if (line < 0)
{
gtk_text_iter_set_line_offset (&selection, 0);
gtk_text_buffer_select_range (text_tool->text_buffer, sel_start,
&selection);
break;
}
}
else
{
line++;
}
layout_line = pango_layout_get_line_readonly (layout, line);
if (! layout_line)
{
if (kevent->keyval == GDK_Up ||
kevent->keyval == GDK_KP_Up)
{
gtk_text_iter_set_line_offset (&selection, 0);
gtk_text_buffer_select_range (text_tool->text_buffer, sel_start,
&selection);
}
else
{
gtk_text_iter_forward_to_line_end (&selection);
gtk_text_buffer_select_range (text_tool->text_buffer, sel_start,
&selection);
}
break;
}
layout_iter = pango_layout_get_iter (layout);
for (i = 0; i < line; i++)
pango_layout_iter_next_line (layout_iter);
pango_layout_iter_get_line_extents (layout_iter, NULL, &logical);
pango_layout_iter_free (layout_iter);
pango_layout_line_x_to_index (layout_line, x_pos - logical.x,
&line_index, &trailing);
line_index -= layout_line->start_index;
gtk_text_buffer_get_iter_at_line_index (text_tool->text_buffer,
&selection,
line, line_index);
while (trailing--)
gtk_text_iter_forward_char (&selection);
gtk_text_buffer_place_cursor (text_tool->text_buffer, &selection);
gtk_text_buffer_select_range (text_tool->text_buffer, sel_start,
&selection);
}
break;
case GDK_Home:
case GDK_KP_Home:
gtk_text_iter_set_line (&selection, gtk_text_iter_get_line (&selection));
gtk_text_buffer_select_range (text_tool->text_buffer, sel_start,
&selection);
break;
case GDK_End:
case GDK_KP_End:
gtk_text_iter_set_line (&selection, gtk_text_iter_get_line (&selection));
gtk_text_iter_forward_to_line_end (&selection);
gtk_text_buffer_select_range (text_tool->text_buffer, sel_start,
&selection);
break;
default:
retval = FALSE;
}
text_tool->x_pos = x_pos;
gimp_draw_tool_resume (GIMP_DRAW_TOOL (tool));
return retval;
}
static void
gimp_text_tool_cursor_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display)
{
if (tool->display == display)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (tool);
gint x1, y1;
gint x2, y2;
g_object_get (G_OBJECT (tool),
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
if (coords->x > x1 && coords->x <= x2 &&
coords->y > y1 && coords->y <= y2 &&
! text_tool->moving)
{
gimp_tool_control_set_cursor (tool->control, GDK_XTERM);
gimp_tool_control_set_cursor_modifier (tool->control,
GIMP_CURSOR_MODIFIER_NONE);
}
else
{
gimp_rectangle_tool_cursor_update (tool, coords, state, display);
}
}
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
}
static void
gimp_text_tool_oper_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (tool);
GimpRectangleTool *rect_tool = GIMP_RECTANGLE_TOOL (tool);
gimp_rectangle_tool_oper_update (tool, coords, state, proximity, display);
text_tool->moving = (gimp_rectangle_tool_get_function (rect_tool) ==
GIMP_RECTANGLE_TOOL_MOVING &&
(state & GDK_MOD1_MASK));
}
static GimpUIManager *
gimp_text_tool_get_popup (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display,
const gchar **ui_path)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (tool);
gint x1, y1;
gint x2, y2;
g_object_get (text_tool,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
if (coords->x > x1 && coords->x <= x2 &&
coords->y > y1 && coords->y <= y2)
{
if (! text_tool->ui_manager)
{
GimpDialogFactory *dialog_factory;
GtkWidget *im_menu;
dialog_factory = gimp_dialog_factory_from_name ("toplevel");
text_tool->ui_manager =
gimp_menu_factory_manager_new (dialog_factory->menu_factory,
"<TextTool>",
text_tool, FALSE);
im_menu = gtk_ui_manager_get_widget (GTK_UI_MANAGER (text_tool->ui_manager),
"/text-tool-popup/text-tool-input-methods-menu");
if (GTK_IS_MENU_ITEM (im_menu))
im_menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (im_menu));
gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (text_tool->im_context),
GTK_MENU_SHELL (im_menu));
}
gimp_ui_manager_update (text_tool->ui_manager, text_tool);
*ui_path = "/text-tool-popup";
return text_tool->ui_manager;
}
return NULL;
}
static void
gimp_text_tool_draw (GimpDrawTool *draw_tool)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (draw_tool);
GdkRectangle cliprect;
gint x1, x2;
gint y1, y2;
gint logical_off_x = 0;
gint logical_off_y = 0;
PangoLayout *layout;
PangoRectangle ink_extents;
PangoRectangle logical_extents;
GtkTextIter start;
g_object_set (text_tool,
"narrow-mode", TRUE,
NULL);
gimp_rectangle_tool_draw (draw_tool);
if (! text_tool->layer ||
! text_tool->layer->text)
return;
/* There will be no layout if the function is called from the wrong place */
if (! text_tool->layout)
gimp_text_tool_update_layout (text_tool);
g_object_get (text_tool,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
/* Turn on clipping for text-cursor and selections */
cliprect.x = x1;
cliprect.width = x2 - x1;
cliprect.y = y1;
cliprect.height = y2 - y1;
gimp_draw_tool_set_clip_rect (draw_tool, &cliprect, FALSE);
layout = gimp_text_layout_get_pango_layout (text_tool->layout);
pango_layout_get_pixel_extents (layout, &ink_extents, &logical_extents);
if (ink_extents.x < 0)
logical_off_x = -ink_extents.x;
if (ink_extents.y < 0)
logical_off_y = -ink_extents.y;
gtk_text_buffer_get_start_iter (text_tool->text_buffer, &start);
if (! gtk_text_buffer_get_has_selection (text_tool->text_buffer))
{
/* If the text buffer has no selection, draw the text cursor */
gint cursorx;
GtkTextIter cursor;
PangoRectangle crect;
gchar *string;
gtk_text_buffer_get_iter_at_mark (text_tool->text_buffer, &cursor,
gtk_text_buffer_get_insert (text_tool->text_buffer));
string = gtk_text_buffer_get_text (text_tool->text_buffer,
&start, &cursor, FALSE);
/* Using strlen to get the byte index, not the character offset */
cursorx = strlen (string);
/* TODO: make cursor position itself even inside preedits! */
if (text_tool->preedit_len > 0)
cursorx += text_tool->preedit_len;
g_free (string);
pango_layout_index_to_pos (layout, cursorx, &crect);
crect.x = PANGO_PIXELS (crect.x) + logical_off_x;
crect.y = PANGO_PIXELS (crect.y) + logical_off_y;
crect.height = PANGO_PIXELS (crect.height);
gimp_draw_tool_draw_text_cursor (draw_tool,
crect.x, crect.y,
crect.x, crect.y + crect.height,
TRUE);
if (text_tool->preedit_string && text_tool->preedit_len > 0)
gimp_text_tool_draw_preedit (draw_tool, logical_off_x, logical_off_y);
}
else
{
/* If the text buffer has a selection, highlight the selected
* letters
*/
gimp_text_tool_draw_selection (draw_tool, logical_off_x, logical_off_y);
}
/* Turn off clipping when done */
gimp_draw_tool_set_clip_rect (draw_tool, NULL, FALSE);
}
static void
gimp_text_tool_draw_preedit (GimpDrawTool *draw_tool,
gint logical_off_x,
gint logical_off_y)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (draw_tool);
PangoLayout *layout;
PangoLayoutIter *line_iter;
GtkTextIter cursor, start;
gint i;
gint min, max;
gchar *string;
gtk_text_buffer_get_selection_bounds (text_tool->text_buffer, &cursor, NULL);
gtk_text_buffer_get_start_iter (text_tool->text_buffer, &start);
string = gtk_text_buffer_get_text (text_tool->text_buffer,
&start, &cursor, FALSE);
min = strlen (string);
g_free (string);
max = min + text_tool->preedit_len;
layout = gimp_text_layout_get_pango_layout (text_tool->layout);
line_iter = pango_layout_get_iter (layout);
i = 0;
do
{
gint firstline, lastline;
gint first_x, last_x;
pango_layout_index_to_line_x (layout, min, 0, &firstline, &first_x);
pango_layout_index_to_line_x (layout, max, 0, &lastline, &last_x);
first_x = PANGO_PIXELS (first_x) + logical_off_x;
last_x = PANGO_PIXELS (last_x) + logical_off_x;
if (i >= firstline && i <= lastline)
{
PangoRectangle crect;
pango_layout_iter_get_line_extents (line_iter, NULL, &crect);
pango_extents_to_pixels (&crect, NULL);
crect.x += logical_off_x;
crect.y += logical_off_y;
gimp_draw_tool_draw_line (draw_tool,
crect.x, crect.y + crect.height,
crect.x + crect.width,
crect.y + crect.height,
TRUE);
if (i == firstline)
{
PangoRectangle crect2 = crect;
crect2.width = first_x - crect.x;
crect2.x = crect.x;
gimp_draw_tool_draw_line (draw_tool,
crect2.x, crect2.y + crect2.height,
crect2.width,
crect2.y + crect2.height,
TRUE);
}
if (i == lastline)
{
PangoRectangle crect2 = crect;
crect2.width = crect.x + crect.width - last_x;
crect2.x = last_x;
gimp_draw_tool_draw_line (draw_tool,
crect2.x, crect2.y + crect2.height,
crect2.x + crect2.width,
crect2.y + crect2.height,
TRUE);
}
}
i++;
}
while (pango_layout_iter_next_line (line_iter));
pango_layout_iter_free (line_iter);
}
static void
gimp_text_tool_draw_selection (GimpDrawTool *draw_tool,
gint logical_off_x,
gint logical_off_y)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (draw_tool);
PangoLayout *layout;
PangoLayoutIter *line_iter;
GtkTextIter start;
GtkTextIter sel_start, sel_end;
gint i;
gint min, max;
gchar *string;
gtk_text_buffer_get_selection_bounds (text_tool->text_buffer,
&sel_start, &sel_end);
gtk_text_buffer_get_start_iter (text_tool->text_buffer, &start);
string = gtk_text_buffer_get_text (text_tool->text_buffer,
&start, &sel_start, FALSE);
min = strlen (string);
g_free (string);
string = gtk_text_buffer_get_text (text_tool->text_buffer,
&start, &sel_end, FALSE);
max = strlen (string);
g_free (string);
layout = gimp_text_layout_get_pango_layout (text_tool->layout);
line_iter = pango_layout_get_iter (layout);
i = 0;
/* Invert the selected letters by inverting all lines containing
* selected letters, then invert the unselected letters on these
* lines a second time to make them look normal
*/
do
{
gint firstline, lastline;
gint first_x, last_x;
pango_layout_index_to_line_x (layout, min, 0, &firstline, &first_x);
pango_layout_index_to_line_x (layout, max, 0, &lastline, &last_x);
first_x = PANGO_PIXELS (first_x) + logical_off_x;
last_x = PANGO_PIXELS (last_x) + logical_off_x;
if (i >= firstline && i <= lastline)
{
PangoRectangle crect;
pango_layout_iter_get_line_extents (line_iter, NULL, &crect);
pango_extents_to_pixels (&crect, NULL);
crect.x += logical_off_x;
crect.y += logical_off_y;
gimp_draw_tool_draw_rectangle (draw_tool, TRUE,
crect.x, crect.y,
crect.width, crect.height,
TRUE);
if (i == firstline)
{
/* Twice invert all letters before the selection, making
* them look normal
*/
PangoRectangle crect2 = crect;
crect2.width = first_x - crect.x;
crect2.x = crect.x;
gimp_draw_tool_draw_rectangle (draw_tool, TRUE,
crect2.x, crect2.y,
crect2.width, crect2.height,
TRUE);
}
if (i == lastline)
{
/* Twice invert all letters after the selection, making
* them look normal
*/
PangoRectangle crect2 = crect;
crect2.width = crect.x + crect.width - last_x;
crect2.x = last_x;
gimp_draw_tool_draw_rectangle (draw_tool, TRUE,
crect2.x, crect2.y,
crect2.width, crect2.height,
TRUE);
}
}
i++;
}
while (pango_layout_iter_next_line (line_iter));
pango_layout_iter_free (line_iter);
}
static gboolean
gimp_text_tool_rectangle_change_complete (GimpRectangleTool *rect_tool)
{
GimpTextTool *text_tool = GIMP_TEXT_TOOL (rect_tool);
if (text_tool->handle_rectangle_change_complete)
{
GimpText *text = text_tool->text;
GimpItem *item = GIMP_ITEM (text_tool->layer);
gint x1, y1;
gint x2, y2;
g_object_get (rect_tool,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
text_tool->text_box_fixed = TRUE;
if (! text || ! text->text || (text->text[0] == 0))
{
/* we can't set properties for the text layer, because it
* isn't created until some text has been inserted, so we
* need to make a special note that will remind us what to
* do when we actually create the layer
*/
return TRUE;
}
g_object_set (text_tool->proxy,
"box-mode", GIMP_TEXT_BOX_FIXED,
"box-width", (gdouble) (x2 - x1),
"box-height", (gdouble) (y2 - y1),
NULL);
gimp_image_undo_group_start (text_tool->image, GIMP_UNDO_GROUP_TEXT,
_("Reshape Text Layer"));
gimp_item_translate (item,
x1 - gimp_item_get_offset_x (item),
y1 - gimp_item_get_offset_y (item),
TRUE);
gimp_text_tool_apply (text_tool);
gimp_image_undo_group_end (text_tool->image);
}
return TRUE;
}
/* private functions */
static void
gimp_text_tool_connect (GimpTextTool *text_tool,
GimpTextLayer *layer,
GimpText *text)
{
GimpTool *tool = GIMP_TOOL (text_tool);
g_return_if_fail (text == NULL || (layer != NULL && layer->text == text));
if (text_tool->text != text)
{
GimpTextOptions *options = GIMP_TEXT_TOOL_GET_OPTIONS (tool);
if (text_tool->text)
{
g_signal_handlers_disconnect_by_func (text_tool->text,
gimp_text_tool_text_notify,
text_tool);
if (text_tool->pending)
gimp_text_tool_apply (text_tool);
g_object_unref (text_tool->text);
text_tool->text = NULL;
g_object_set (text_tool->proxy, "text", NULL, NULL);
}
gimp_context_define_property (GIMP_CONTEXT (options),
GIMP_CONTEXT_PROP_FOREGROUND,
text != NULL);
if (text)
{
gimp_config_sync (G_OBJECT (text), G_OBJECT (text_tool->proxy), 0);
text_tool->text = g_object_ref (text);
g_signal_connect (text, "notify",
G_CALLBACK (gimp_text_tool_text_notify),
text_tool);
}
}
if (text_tool->layer != layer)
{
if (text_tool->layer)
g_signal_handlers_disconnect_by_func (text_tool->layer,
gimp_text_tool_layer_notify,
text_tool);
text_tool->layer = layer;
if (layer)
g_signal_connect_object (text_tool->layer, "notify::modified",
G_CALLBACK (gimp_text_tool_layer_notify),
text_tool, 0);
}
}
static void
gimp_text_tool_use_editor_notify (GimpTextOptions *options,
GParamSpec *pspec,
GimpTextTool *text_tool)
{
if (options->use_editor)
{
if (text_tool->text && text_tool->text_buffer)
gimp_text_tool_editor (text_tool);
}
else
{
if (text_tool->editor)
gtk_widget_destroy (text_tool->editor);
}
}
static void
gimp_text_tool_layer_notify (GimpTextLayer *layer,
GParamSpec *pspec,
GimpTextTool *text_tool)
{
if (layer->modified)
gimp_text_tool_connect (text_tool, NULL, NULL);
}
static void
gimp_text_tool_proxy_notify (GimpText *text,
GParamSpec *pspec,
GimpTextTool *text_tool)
{
if (! text_tool->text)
return;
if ((pspec->flags & G_PARAM_READWRITE) == G_PARAM_READWRITE)
{
text_tool->pending = g_list_append (text_tool->pending, pspec);
if (text_tool->idle_id)
g_source_remove (text_tool->idle_id);
text_tool->idle_id =
g_idle_add_full (G_PRIORITY_LOW,
(GSourceFunc) gimp_text_tool_idle_apply, text_tool,
NULL);
}
}
static void
gimp_text_tool_text_notify (GimpText *text,
GParamSpec *pspec,
GimpTextTool *text_tool)
{
g_return_if_fail (text == text_tool->text);
if ((pspec->flags & G_PARAM_READWRITE) == G_PARAM_READWRITE)
{
GValue value = { 0, };
g_value_init (&value, pspec->value_type);
g_object_get_property (G_OBJECT (text), pspec->name, &value);
g_signal_handlers_block_by_func (text_tool->proxy,
gimp_text_tool_proxy_notify,
text_tool);
g_object_set_property (G_OBJECT (text_tool->proxy), pspec->name, &value);
g_signal_handlers_unblock_by_func (text_tool->proxy,
gimp_text_tool_proxy_notify,
text_tool);
g_value_unset (&value);
}
/* we need to redraw the rectangle if it is visible and the shape of
* the layer has changed, because of an undo for example.
*/
if (strcmp (pspec->name, "box-width") == 0 ||
strcmp (pspec->name, "box-height") == 0 ||
text->box_mode == GIMP_TEXT_BOX_DYNAMIC)
{
GimpRectangleTool *rect_tool = GIMP_RECTANGLE_TOOL (text_tool);
text_tool->handle_rectangle_change_complete = FALSE;
gimp_rectangle_tool_frame_item (rect_tool,
GIMP_ITEM (text_tool->layer));
text_tool->handle_rectangle_change_complete = TRUE;
}
/* if the text has changed, (probably because of an undo), we put
* the new text into the text buffer
*/
if (strcmp (pspec->name, "text") == 0)
{
g_signal_handlers_block_by_func (text_tool->proxy,
gimp_text_tool_text_buffer_changed,
text_tool);
gtk_text_buffer_set_text (text_tool->text_buffer, text->text, -1);
g_signal_handlers_unblock_by_func (text_tool->proxy,
gimp_text_tool_text_buffer_changed,
text_tool);
/* force change of cursor and selection display */
gimp_text_tool_update_layout (text_tool);
/* gimp_text_tool_update_proxy (text_tool); */
return;
}
}
static gboolean
gimp_text_tool_idle_apply (GimpTextTool *text_tool)
{
text_tool->idle_id = 0;
gimp_text_tool_apply (text_tool);
return FALSE;
}
static void
gimp_text_tool_apply (GimpTextTool *text_tool)
{
const GParamSpec *pspec = NULL;
GimpImage *image;
GimpTextLayer *layer;
GObject *src;
GObject *dest;
GList *list;
gboolean push_undo = TRUE;
gboolean undo_group = FALSE;
if (text_tool->idle_id)
{
g_source_remove (text_tool->idle_id);
text_tool->idle_id = 0;
}
g_return_if_fail (text_tool->text != NULL);
g_return_if_fail (text_tool->layer != NULL);
layer = text_tool->layer;
image = gimp_item_get_image (GIMP_ITEM (layer));
g_return_if_fail (layer->text == text_tool->text);
/* Walk over the list of changes and figure out if we are changing
* a single property or need to push a full text undo.
*/
for (list = text_tool->pending;
list && list->next && list->next->data == list->data;
list = list->next)
/* do nothing */;
if (g_list_length (list) == 1)
pspec = list->data;
/* If we are changing a single property, we don't need to push
* an undo if all of the following is true:
* - the redo stack is empty
* - the last item on the undo stack is a text undo
* - the last undo changed the same text property on the same layer
* - the last undo happened less than TEXT_UNDO_TIMEOUT seconds ago
*/
if (pspec)
{
GimpUndo *undo = gimp_image_undo_can_compress (image, GIMP_TYPE_TEXT_UNDO,
GIMP_UNDO_TEXT_LAYER);
if (undo && GIMP_ITEM_UNDO (undo)->item == GIMP_ITEM (layer))
{
GimpTextUndo *text_undo = GIMP_TEXT_UNDO (undo);
if (text_undo->pspec == pspec)
{
if (gimp_undo_get_age (undo) < TEXT_UNDO_TIMEOUT)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpContext *context;
context = GIMP_CONTEXT (gimp_tool_get_options (tool));
push_undo = FALSE;
gimp_undo_reset_age (undo);
gimp_undo_refresh_preview (undo, context);
}
}
}
}
if (push_undo)
{
if (layer->modified)
{
undo_group = TRUE;
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TEXT, NULL);
gimp_image_undo_push_text_layer_modified (image, NULL, layer);
gimp_image_undo_push_drawable_mod (image,
NULL, GIMP_DRAWABLE (layer));
}
gimp_image_undo_push_text_layer (image, NULL, layer, pspec);
}
src = G_OBJECT (text_tool->proxy);
dest = G_OBJECT (text_tool->text);
g_signal_handlers_block_by_func (dest,
gimp_text_tool_text_notify,
text_tool);
g_object_freeze_notify (dest);
for (; list; list = list->next)
{
GValue value = { 0, };
/* look ahead and compress changes */
if (list->next && list->next->data == list->data)
continue;
pspec = list->data;
g_value_init (&value, pspec->value_type);
g_object_get_property (src, pspec->name, &value);
g_object_set_property (dest, pspec->name, &value);
g_value_unset (&value);
}
g_list_free (text_tool->pending);
text_tool->pending = NULL;
g_object_thaw_notify (dest);
g_signal_handlers_unblock_by_func (dest,
gimp_text_tool_text_notify,
text_tool);
if (push_undo)
{
g_object_set (layer, "modified", FALSE, NULL);
if (undo_group)
gimp_image_undo_group_end (image);
}
/* if we're doing dynamic text, we want to update the shape of the
* rectangle
*/
if (layer->text->box_mode == GIMP_TEXT_BOX_DYNAMIC)
{
text_tool->handle_rectangle_change_complete = FALSE;
gimp_rectangle_tool_frame_item (GIMP_RECTANGLE_TOOL (text_tool),
GIMP_ITEM (layer));
text_tool->handle_rectangle_change_complete = TRUE;
}
gimp_image_flush (image);
gimp_text_tool_update_layout (text_tool);
}
static void
gimp_text_tool_create_layer (GimpTextTool *text_tool,
GimpText *text)
{
GimpRectangleTool *rect_tool = GIMP_RECTANGLE_TOOL (text_tool);
GimpTool *tool = GIMP_TOOL (text_tool);
GimpImage *image = tool->display->image;
GimpLayer *layer;
gint x1, y1;
gint x2, y2;
if (text)
{
text = gimp_config_duplicate (GIMP_CONFIG (text));
}
else
{
gchar *str = gimp_text_tool_canvas_editor_get_text (text_tool);
g_object_set (text_tool->proxy,
"text", str,
"box-mode", GIMP_TEXT_BOX_DYNAMIC,
NULL);
g_free (str);
text = gimp_config_duplicate (GIMP_CONFIG (text_tool->proxy));
}
layer = gimp_text_layer_new (image, text);
g_object_unref (text);
if (! layer)
return;
gimp_text_tool_connect (text_tool, GIMP_TEXT_LAYER (layer), text);
gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_TEXT,
_("Add Text Layer"));
if (gimp_image_get_floating_selection (image))
{
g_signal_handlers_block_by_func (image,
gimp_text_tool_layer_changed,
text_tool);
floating_sel_anchor (gimp_image_get_floating_selection (image));
g_signal_handlers_unblock_by_func (image,
gimp_text_tool_layer_changed,
text_tool);
}
g_object_get (rect_tool,
"x1", &x1,
"y1", &y1,
"x2", &x2,
"y2", &y2,
NULL);
gimp_item_set_offset (GIMP_ITEM (layer), x1, y1);
gimp_image_add_layer (image, layer, -1, TRUE);
if (text_tool->text_box_fixed)
{
GimpItem *item = GIMP_ITEM (layer);
g_object_set (text_tool->proxy,
"box-mode", GIMP_TEXT_BOX_FIXED,
"box-width", (gdouble) (x2 - x1),
"box-height", (gdouble) (y2 - y1),
NULL);
gimp_item_translate (item,
x1 - gimp_item_get_offset_x (item),
y1 - gimp_item_get_offset_y (item),
TRUE);
}
else
{
text_tool->handle_rectangle_change_complete = FALSE;
gimp_rectangle_tool_frame_item (GIMP_RECTANGLE_TOOL (text_tool),
GIMP_ITEM (layer));
text_tool->handle_rectangle_change_complete = TRUE;
}
gimp_image_undo_group_end (image);
gimp_image_flush (image);
gimp_text_tool_set_drawable (text_tool, GIMP_DRAWABLE (layer), FALSE);
}
static void
gimp_text_tool_editor (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpTextOptions *options = GIMP_TEXT_TOOL_GET_OPTIONS (text_tool);
GimpDialogFactory *dialog_factory;
GtkWindow *parent = NULL;
if (text_tool->editor)
{
gtk_window_present (GTK_WINDOW (text_tool->editor));
return;
}
dialog_factory = gimp_dialog_factory_from_name ("toplevel");
if (tool->display)
parent = GTK_WINDOW (tool->display->shell);
text_tool->editor = gimp_text_options_editor_new (parent, options,
dialog_factory->menu_factory,
_("GIMP Text Editor"),
text_tool->text_buffer);
g_object_add_weak_pointer (G_OBJECT (text_tool->editor),
(gpointer) &text_tool->editor);
gimp_dialog_factory_add_foreign (dialog_factory,
"gimp-text-tool-dialog",
text_tool->editor);
gtk_widget_show (text_tool->editor);
}
static void
gimp_text_tool_canvas_editor (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpTextOptions *options = GIMP_TEXT_TOOL_GET_OPTIONS (text_tool);
gtk_im_context_set_client_window (text_tool->im_context,
GIMP_DISPLAY_SHELL (tool->display->shell)->canvas->window);
gtk_im_context_focus_in (text_tool->im_context);
gimp_text_tool_update_layout (text_tool);
if (options->use_editor)
gimp_text_tool_editor (text_tool);
}
static gchar *
gimp_text_tool_canvas_editor_get_text (GimpTextTool *text_tool)
{
if (text_tool->text_buffer)
{
GtkTextIter start, end;
GtkTextIter selstart, selend;
gchar *string;
gchar *fb;
gchar *lb;
gtk_text_buffer_get_bounds (text_tool->text_buffer, &start, &end);
gtk_text_buffer_get_selection_bounds (text_tool->text_buffer,
&selstart, &selend);
fb = gtk_text_buffer_get_text (text_tool->text_buffer,
&start, &selstart, TRUE);
lb = gtk_text_buffer_get_text (text_tool->text_buffer,
&selstart, &end, TRUE);
if (text_tool->preedit_string)
{
if (fb == NULL)
{
string = g_strconcat (text_tool->preedit_string, lb, NULL);
}
else
{
string = g_strconcat (fb, text_tool->preedit_string, lb, NULL);
}
}
else
{
string = g_strconcat (fb, lb, NULL);
}
g_free (fb);
g_free (lb);
return string;
}
return NULL;
}
#define RESPONSE_NEW 1
static void
gimp_text_tool_confirm_response (GtkWidget *widget,
gint response_id,
GimpTextTool *text_tool)
{
GimpTextLayer *layer = text_tool->layer;
gtk_widget_destroy (widget);
if (layer && layer->text)
{
switch (response_id)
{
case RESPONSE_NEW:
gimp_text_tool_create_layer (text_tool, layer->text);
break;
case GTK_RESPONSE_ACCEPT:
gimp_text_tool_connect (text_tool, layer, layer->text);
/* cause the text layer to be rerendered */
if (text_tool->proxy)
g_object_notify (G_OBJECT (text_tool->proxy), "text");
gimp_text_tool_canvas_editor (text_tool);
break;
default:
break;
}
}
}
static void
gimp_text_tool_confirm_dialog (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GtkWidget *dialog;
GtkWidget *vbox;
GtkWidget *label;
g_return_if_fail (text_tool->layer != NULL);
if (text_tool->confirm_dialog)
{
gtk_window_present (GTK_WINDOW (text_tool->confirm_dialog));
return;
}
dialog = gimp_viewable_dialog_new (GIMP_VIEWABLE (text_tool->layer),
GIMP_CONTEXT (gimp_tool_get_options (tool)),
_("Confirm Text Editing"),
"gimp-text-tool-confirm",
GIMP_STOCK_TEXT_LAYER,
_("Confirm Text Editing"),
tool->display->shell,
gimp_standard_help_func, NULL,
_("Create _New Layer"), RESPONSE_NEW,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_EDIT, GTK_RESPONSE_ACCEPT,
NULL);
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
RESPONSE_NEW,
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
g_signal_connect (dialog, "response",
G_CALLBACK (gimp_text_tool_confirm_response),
text_tool);
vbox = gtk_vbox_new (FALSE, 6);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox),
vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
label = gtk_label_new (_("The layer you selected is a text layer but "
"it has been modified using other tools. "
"Editing the layer with the text tool will "
"discard these modifications."
"\n\n"
"You can edit the layer or create a new "
"text layer from its text attributes."));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
gtk_widget_show (dialog);
text_tool->confirm_dialog = dialog;
g_signal_connect_swapped (dialog, "destroy",
G_CALLBACK (g_nullify_pointer),
&text_tool->confirm_dialog);
}
static void
gimp_text_tool_layer_changed (GimpImage *image,
GimpTextTool *text_tool)
{
GimpLayer *layer = gimp_image_get_active_layer (image);
GimpRectangleTool *rect_tool = GIMP_RECTANGLE_TOOL (text_tool);
gimp_text_tool_set_drawable (text_tool, GIMP_DRAWABLE (layer), FALSE);
if (text_tool->layer)
{
if (! gimp_rectangle_tool_rectangle_is_new (rect_tool))
{
text_tool->handle_rectangle_change_complete = FALSE;
gimp_rectangle_tool_frame_item (rect_tool,
GIMP_ITEM (text_tool->layer));
text_tool->handle_rectangle_change_complete = TRUE;
}
}
}
static void
gimp_text_tool_set_image (GimpTextTool *text_tool,
GimpImage *image)
{
if (text_tool->image == image)
return;
if (text_tool->image)
{
g_signal_handlers_disconnect_by_func (text_tool->image,
gimp_text_tool_layer_changed,
text_tool);
g_object_remove_weak_pointer (G_OBJECT (text_tool->image),
(gpointer) &text_tool->image);
text_tool->image = NULL;
}
if (image)
{
GimpTextOptions *options = GIMP_TEXT_TOOL_GET_OPTIONS (text_tool);
gdouble xres;
gdouble yres;
gimp_image_get_resolution (image, &xres, &yres);
text_tool->image = image;
g_object_add_weak_pointer (G_OBJECT (text_tool->image),
(gpointer) &text_tool->image);
g_signal_connect_object (text_tool->image, "active-layer-changed",
G_CALLBACK (gimp_text_tool_layer_changed),
text_tool, 0);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (options->size_entry), 0,
yres, FALSE);
}
}
static gboolean
gimp_text_tool_set_drawable (GimpTextTool *text_tool,
GimpDrawable *drawable,
gboolean confirm)
{
GimpImage *image = NULL;
if (text_tool->confirm_dialog)
gtk_widget_destroy (text_tool->confirm_dialog);
if (drawable)
image = gimp_item_get_image (GIMP_ITEM (drawable));
gimp_text_tool_set_image (text_tool, image);
if (GIMP_IS_TEXT_LAYER (drawable) && GIMP_TEXT_LAYER (drawable)->text)
{
GimpTextLayer *layer = GIMP_TEXT_LAYER (drawable);
if (layer == text_tool->layer && layer->text == text_tool->text)
return TRUE;
if (layer->modified)
{
if (confirm)
{
gimp_text_tool_connect (text_tool, layer, NULL);
gimp_text_tool_confirm_dialog (text_tool);
return TRUE;
}
}
else
{
gimp_text_tool_connect (text_tool, layer, layer->text);
return TRUE;
}
}
gimp_text_tool_connect (text_tool, NULL, NULL);
text_tool->layer = NULL;
return FALSE;
}
void
gimp_text_tool_set_layer (GimpTextTool *text_tool,
GimpLayer *layer)
{
g_return_if_fail (GIMP_IS_TEXT_TOOL (text_tool));
g_return_if_fail (layer == NULL || GIMP_IS_LAYER (layer));
if (gimp_text_tool_set_drawable (text_tool, GIMP_DRAWABLE (layer), TRUE))
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpItem *item = GIMP_ITEM (layer);
GimpContext *context;
GimpDisplay *display;
context = gimp_get_user_context (tool->tool_info->gimp);
display = gimp_context_get_display (context);
if (! display || display->image != gimp_item_get_image (item))
{
GList *list;
display = NULL;
for (list = gimp_get_display_iter (tool->tool_info->gimp);
list;
list = g_list_next (list))
{
display = list->data;
if (display->image == gimp_item_get_image (item))
{
gimp_context_set_display (context, display);
break;
}
display = NULL;
}
}
tool->display = display;
if (tool->display)
{
tool->drawable = GIMP_DRAWABLE (layer);
gimp_text_tool_canvas_editor (text_tool);
}
}
}
static void
gimp_text_tool_update_proxy (GimpTextTool *text_tool)
{
if (text_tool->text)
{
gchar *string = gimp_text_tool_canvas_editor_get_text (text_tool);
g_object_set (text_tool->proxy,
"text", string,
NULL);
g_free (string);
}
else
{
gimp_text_tool_create_layer (text_tool, NULL);
}
}
static void
gimp_text_tool_enter_text (GimpTextTool *text_tool,
const gchar *str)
{
if (gtk_text_buffer_get_has_selection (text_tool->text_buffer))
{
gtk_text_buffer_delete_selection (text_tool->text_buffer, TRUE, TRUE);
}
gtk_text_buffer_insert_at_cursor (text_tool->text_buffer, str, -1);
}
static void
gimp_text_tool_text_buffer_changed (GtkTextBuffer *text_buffer,
GimpTextTool *text_tool)
{
gimp_text_tool_update_proxy (text_tool);
}
static void
gimp_text_tool_text_buffer_mark_set (GtkTextBuffer *text_buffer,
GtkTextIter *iter,
GtkTextMark *mark,
GimpTextTool *text_tool)
{
gimp_text_tool_update_layout (text_tool);
/* gimp_text_tool_update_proxy (text_tool); */
}
static void
gimp_text_tool_update_layout (GimpTextTool *text_tool)
{
GimpImage *image;
if (! text_tool->text)
{
gimp_text_tool_update_proxy (text_tool);
return;
}
if (text_tool->layout)
g_object_unref (text_tool->layout);
image = gimp_item_get_image (GIMP_ITEM (text_tool->layer));
text_tool->layout = gimp_text_layout_new (text_tool->layer->text, image);
}
static gint
gimp_text_tool_xy_to_offset (GimpTextTool *text_tool,
gdouble x,
gdouble y)
{
GtkTextIter start, end;
PangoLayout *layout;
PangoRectangle ink_extents;
gchar *string;
gint offset;
gint trailing;
/* adjust to offset of logical rect */
layout = gimp_text_layout_get_pango_layout (text_tool->layout);
pango_layout_get_pixel_extents (layout, &ink_extents, NULL);
if (ink_extents.x < 0)
x += ink_extents.x;
if (ink_extents.y < 0)
y += ink_extents.y;
gtk_text_buffer_get_bounds (text_tool->text_buffer, &start, &end);
string = gtk_text_buffer_get_text (text_tool->text_buffer,
&start, &end, TRUE);
pango_layout_xy_to_index (layout,
x * PANGO_SCALE,
y * PANGO_SCALE,
&offset, &trailing);
offset = g_utf8_pointer_to_offset (string, string + offset);
offset += trailing;
g_free (string);
return offset;
}
/* IM context utilities and callbacks */
static void
gimp_text_tool_reset_im_context (GimpTextTool *text_tool)
{
if (text_tool->needs_im_reset)
{
text_tool->needs_im_reset = FALSE;
gtk_im_context_reset (text_tool->im_context);
}
}
static void
gimp_text_tool_commit_cb (GtkIMContext *context,
const gchar *str,
GimpTextTool *text_tool)
{
gimp_text_tool_enter_text (text_tool, str);
}
static void
gimp_text_tool_preedit_changed_cb (GtkIMContext *context,
GimpTextTool *text_tool)
{
if (text_tool->preedit_string)
g_free (text_tool->preedit_string);
gtk_im_context_get_preedit_string (context,
&text_tool->preedit_string, NULL,
&text_tool->preedit_cursor);
text_tool->preedit_len = strlen (text_tool->preedit_string);
gimp_text_tool_update_proxy (text_tool);
}
/* public functions */
gboolean
gimp_text_tool_get_has_text_selection (GimpTextTool *text_tool)
{
if (text_tool->text_buffer)
return gtk_text_buffer_get_has_selection (text_tool->text_buffer);
else
return FALSE;
}
void
gimp_text_tool_delete_text (GimpTextTool *text_tool,
gboolean backspace)
{
GtkTextIter cursor;
gtk_text_buffer_get_iter_at_mark (text_tool->text_buffer,
&cursor,
gtk_text_buffer_get_insert (text_tool->text_buffer));
if (gtk_text_buffer_get_has_selection (text_tool->text_buffer))
{
gtk_text_buffer_delete_selection (text_tool->text_buffer, TRUE, TRUE);
}
else if (backspace)
{
gtk_text_buffer_backspace (text_tool->text_buffer, &cursor, TRUE, TRUE);
}
else
{
GtkTextIter end = cursor;
gtk_text_iter_forward_cursor_positions (&end, 1);
gtk_text_buffer_delete_interactive (text_tool->text_buffer,
&cursor, &end, TRUE);
}
}
void
gimp_text_tool_clipboard_cut (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GtkClipboard *clipboard;
clipboard = gtk_widget_get_clipboard (tool->display->shell,
GDK_SELECTION_CLIPBOARD);
gtk_text_buffer_cut_clipboard (text_tool->text_buffer, clipboard, TRUE);
}
void
gimp_text_tool_clipboard_copy (GimpTextTool *text_tool,
gboolean use_clipboard)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GtkClipboard *clipboard;
clipboard = gtk_widget_get_clipboard (tool->display->shell,
use_clipboard ?
GDK_SELECTION_CLIPBOARD :
GDK_SELECTION_PRIMARY);
gtk_text_buffer_copy_clipboard (text_tool->text_buffer, clipboard);
}
void
gimp_text_tool_clipboard_paste (GimpTextTool *text_tool,
gboolean use_clipboard)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GtkClipboard *clipboard;
clipboard = gtk_widget_get_clipboard (tool->display->shell,
use_clipboard ?
GDK_SELECTION_CLIPBOARD :
GDK_SELECTION_PRIMARY);
gtk_text_buffer_paste_clipboard (text_tool->text_buffer, clipboard, NULL, TRUE);
}
void
gimp_text_tool_create_vectors (GimpTextTool *text_tool)
{
GimpVectors *vectors;
g_return_if_fail (GIMP_IS_TEXT_TOOL (text_tool));
if (! text_tool->text || ! text_tool->image)
return;
vectors = gimp_text_vectors_new (text_tool->image, text_tool->text);
if (text_tool->layer)
{
gint x, y;
gimp_item_get_offset (GIMP_ITEM (text_tool->layer), &x, &y);
gimp_item_translate (GIMP_ITEM (vectors), x, y, FALSE);
}
gimp_image_add_vectors (text_tool->image, vectors, -1, TRUE);
gimp_image_flush (text_tool->image);
}
void
gimp_text_tool_create_vectors_warped (GimpTextTool *text_tool)
{
GimpVectors *vectors0;
GimpVectors *vectors;
gdouble box_height;
g_return_if_fail (GIMP_IS_TEXT_TOOL (text_tool));
if (! text_tool->text || ! text_tool->image || ! text_tool->layer)
return;
box_height = gimp_item_get_height (GIMP_ITEM (text_tool->layer));
vectors0 = gimp_image_get_active_vectors (text_tool->image);
if (! vectors0)
return;
vectors = gimp_text_vectors_new (text_tool->image, text_tool->text);
gimp_vectors_warp_vectors (vectors0, vectors, 0.5 * box_height);
gimp_image_add_vectors (text_tool->image, vectors, -1, TRUE);
gimp_image_set_active_vectors (text_tool->image, vectors);
gimp_item_set_visible (GIMP_ITEM (vectors), TRUE, FALSE);
gimp_image_flush (text_tool->image);
}
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