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gimp/app/tools/gimptexttool-editor.c
Michael Natterer 843866e7e7 app: make things behave more reasonable with multiple monitors 
There is now a preference option that determines whether windows
should be opened on the same monitor as before. It should be disabled
when the machine gets monitors plugged/unplugged dynamically ("laptop")
and enabled when there is a static multi-monitor setup ("wokstation").
This is merely the current simplistic policy on top of the newly added
underlying infrastructure:

- pass integer monitor numbers around in all places where we already
  pass around a GdkScreen. Pass the "current" monitor to these changed
  APIs, where "current" is either the monitor where the action-triggering
  widget is, or if that is unavailable the monitor where the mouse is.

- add gimp_widget_get_monitor() in order to easily get to the monitor,
  just like gtk_widget_get_screen().

- add screen and monitor parameters in some places that were missed
  before.

- in sessionrc, save all window positions relative to the window's
  monitor, and save the monitor separately, if it's not the screen's
  primary monitor.

- when restoring window positions, use the stored monitor when the new
  prefs options says so (use the screen's primary monitor if there is
  no stored monitor), otherwise use current monitor that is now passed
  around.
2014-05-02 03:01:23 +02:00

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpTextTool
* Copyright (C) 2002-2010 Sven Neumann <sven@gimp.org>
* Daniel Eddeland <danedde@svn.gnome.org>
* Michael Natterer <mitch@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 "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimp.h"
#include "core/gimpimage.h"
#include "core/gimptoolinfo.h"
#include "text/gimptext.h"
#include "text/gimptextlayout.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimpoverlaybox.h"
#include "widgets/gimpoverlayframe.h"
#include "widgets/gimptextbuffer.h"
#include "widgets/gimptexteditor.h"
#include "widgets/gimptextproxy.h"
#include "widgets/gimptextstyleeditor.h"
#include "widgets/gimpwidgets-utils.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "gimprectangletool.h"
#include "gimptextoptions.h"
#include "gimptexttool.h"
#include "gimptexttool-editor.h"
#include "gimp-log.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_text_tool_ensure_proxy (GimpTextTool *text_tool);
static void gimp_text_tool_move_cursor (GimpTextTool *text_tool,
GtkMovementStep step,
gint count,
gboolean extend_selection);
static void gimp_text_tool_insert_at_cursor (GimpTextTool *text_tool,
const gchar *str);
static void gimp_text_tool_delete_from_cursor (GimpTextTool *text_tool,
GtkDeleteType type,
gint count);
static void gimp_text_tool_backspace (GimpTextTool *text_tool);
static void gimp_text_tool_toggle_overwrite (GimpTextTool *text_tool);
static void gimp_text_tool_select_all (GimpTextTool *text_tool,
gboolean select);
static void gimp_text_tool_change_size (GimpTextTool *text_tool,
gdouble amount);
static void gimp_text_tool_change_baseline (GimpTextTool *text_tool,
gdouble amount);
static void gimp_text_tool_change_kerning (GimpTextTool *text_tool,
gdouble amount);
static void gimp_text_tool_options_notify (GimpTextOptions *options,
GParamSpec *pspec,
GimpTextTool *text_tool);
static void gimp_text_tool_editor_dialog (GimpTextTool *text_tool);
static void gimp_text_tool_editor_destroy (GtkWidget *dialog,
GimpTextTool *text_tool);
static void gimp_text_tool_enter_text (GimpTextTool *text_tool,
const gchar *str);
static void gimp_text_tool_xy_to_iter (GimpTextTool *text_tool,
gdouble x,
gdouble y,
GtkTextIter *iter);
static void gimp_text_tool_im_commit (GtkIMContext *context,
const gchar *str,
GimpTextTool *text_tool);
static void gimp_text_tool_im_preedit_start (GtkIMContext *context,
GimpTextTool *text_tool);
static void gimp_text_tool_im_preedit_end (GtkIMContext *context,
GimpTextTool *text_tool);
static void gimp_text_tool_im_preedit_changed (GtkIMContext *context,
GimpTextTool *text_tool);
/* public functions */
void
gimp_text_tool_editor_init (GimpTextTool *text_tool)
{
text_tool->im_context = gtk_im_multicontext_new ();
text_tool->needs_im_reset = FALSE;
text_tool->preedit_string = NULL;
text_tool->preedit_cursor = 0;
text_tool->overwrite_mode = FALSE;
text_tool->x_pos = -1;
g_signal_connect (text_tool->im_context, "commit",
G_CALLBACK (gimp_text_tool_im_commit),
text_tool);
g_signal_connect (text_tool->im_context, "preedit-start",
G_CALLBACK (gimp_text_tool_im_preedit_start),
text_tool);
g_signal_connect (text_tool->im_context, "preedit-end",
G_CALLBACK (gimp_text_tool_im_preedit_end),
text_tool);
g_signal_connect (text_tool->im_context, "preedit-changed",
G_CALLBACK (gimp_text_tool_im_preedit_changed),
text_tool);
}
void
gimp_text_tool_editor_finalize (GimpTextTool *text_tool)
{
if (text_tool->im_context)
{
g_object_unref (text_tool->im_context);
text_tool->im_context = NULL;
}
}
void
gimp_text_tool_editor_start (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpTextOptions *options = GIMP_TEXT_TOOL_GET_OPTIONS (text_tool);
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
gtk_im_context_set_client_window (text_tool->im_context,
gtk_widget_get_window (shell->canvas));
text_tool->needs_im_reset = TRUE;
gimp_text_tool_reset_im_context (text_tool);
gtk_im_context_focus_in (text_tool->im_context);
if (options->use_editor)
gimp_text_tool_editor_dialog (text_tool);
g_signal_connect (options, "notify::use-editor",
G_CALLBACK (gimp_text_tool_options_notify),
text_tool);
if (! text_tool->style_overlay)
{
Gimp *gimp = GIMP_CONTEXT (options)->gimp;
gdouble xres = 1.0;
gdouble yres = 1.0;
text_tool->style_overlay = gimp_overlay_frame_new ();
gtk_container_set_border_width (GTK_CONTAINER (text_tool->style_overlay),
4);
gimp_display_shell_add_overlay (shell,
text_tool->style_overlay,
0, 0,
GIMP_HANDLE_ANCHOR_CENTER, 0, 0);
gimp_overlay_box_set_child_opacity (GIMP_OVERLAY_BOX (shell->canvas),
text_tool->style_overlay, 0.7);
if (text_tool->image)
gimp_image_get_resolution (text_tool->image, &xres, &yres);
text_tool->style_editor = gimp_text_style_editor_new (gimp,
text_tool->proxy,
text_tool->buffer,
gimp->fonts,
xres, yres);
gtk_container_add (GTK_CONTAINER (text_tool->style_overlay),
text_tool->style_editor);
gtk_widget_show (text_tool->style_editor);
}
gimp_text_tool_editor_position (text_tool);
gtk_widget_show (text_tool->style_overlay);
}
void
gimp_text_tool_editor_position (GimpTextTool *text_tool)
{
if (text_tool->style_overlay)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
GtkRequisition requisition;
gint x, y;
gtk_widget_size_request (text_tool->style_overlay, &requisition);
g_object_get (text_tool,
"x1", &x,
"y1", &y,
NULL);
gimp_display_shell_move_overlay (shell,
text_tool->style_overlay,
x, y,
GIMP_HANDLE_ANCHOR_SOUTH_WEST, 4, 12);
if (text_tool->image)
{
gdouble xres, yres;
gimp_image_get_resolution (text_tool->image, &xres, &yres);
g_object_set (text_tool->style_editor,
"resolution-x", xres,
"resolution-y", yres,
NULL);
}
}
}
void
gimp_text_tool_editor_halt (GimpTextTool *text_tool)
{
GimpTextOptions *options = GIMP_TEXT_TOOL_GET_OPTIONS (text_tool);
if (text_tool->style_overlay)
{
gtk_widget_destroy (text_tool->style_overlay);
text_tool->style_overlay = NULL;
text_tool->style_editor = NULL;
}
g_signal_handlers_disconnect_by_func (options,
gimp_text_tool_options_notify,
text_tool);
if (text_tool->editor_dialog)
{
g_signal_handlers_disconnect_by_func (text_tool->editor_dialog,
gimp_text_tool_editor_destroy,
text_tool);
gtk_widget_destroy (text_tool->editor_dialog);
}
if (text_tool->proxy_text_view)
{
gtk_widget_destroy (text_tool->offscreen_window);
text_tool->offscreen_window = NULL;
text_tool->proxy_text_view = NULL;
}
text_tool->needs_im_reset = TRUE;
gimp_text_tool_reset_im_context (text_tool);
gtk_im_context_focus_out (text_tool->im_context);
gtk_im_context_set_client_window (text_tool->im_context, NULL);
}
void
gimp_text_tool_editor_button_press (GimpTextTool *text_tool,
gdouble x,
gdouble y,
GimpButtonPressType press_type)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
GtkTextIter cursor;
GtkTextIter selection;
gimp_text_tool_xy_to_iter (text_tool, x, y, &cursor);
selection = cursor;
text_tool->select_start_iter = cursor;
text_tool->select_words = FALSE;
text_tool->select_lines = FALSE;
switch (press_type)
{
case GIMP_BUTTON_PRESS_NORMAL:
gtk_text_buffer_place_cursor (buffer, &cursor);
break;
case GIMP_BUTTON_PRESS_DOUBLE:
text_tool->select_words = TRUE;
if (! gtk_text_iter_starts_word (&cursor))
gtk_text_iter_backward_visible_word_starts (&cursor, 1);
if (! gtk_text_iter_ends_word (&selection) &&
! gtk_text_iter_forward_visible_word_ends (&selection, 1))
gtk_text_iter_forward_to_line_end (&selection);
gtk_text_buffer_select_range (buffer, &cursor, &selection);
break;
case GIMP_BUTTON_PRESS_TRIPLE:
text_tool->select_lines = TRUE;
gtk_text_iter_set_line_offset (&cursor, 0);
gtk_text_iter_forward_to_line_end (&selection);
gtk_text_buffer_select_range (buffer, &cursor, &selection);
break;
}
}
void
gimp_text_tool_editor_button_release (GimpTextTool *text_tool)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
if (gtk_text_buffer_get_has_selection (buffer))
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
GtkClipboard *clipboard;
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (shell),
GDK_SELECTION_PRIMARY);
gtk_text_buffer_copy_clipboard (buffer, clipboard);
}
}
void
gimp_text_tool_editor_motion (GimpTextTool *text_tool,
gdouble x,
gdouble y)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
GtkTextIter old_cursor;
GtkTextIter old_selection;
GtkTextIter cursor;
GtkTextIter selection;
gtk_text_buffer_get_iter_at_mark (buffer, &old_cursor,
gtk_text_buffer_get_insert (buffer));
gtk_text_buffer_get_iter_at_mark (buffer, &old_selection,
gtk_text_buffer_get_selection_bound (buffer));
gimp_text_tool_xy_to_iter (text_tool, x, y, &cursor);
selection = text_tool->select_start_iter;
if (text_tool->select_words ||
text_tool->select_lines)
{
GtkTextIter start;
GtkTextIter end;
if (gtk_text_iter_compare (&cursor, &selection) < 0)
{
start = cursor;
end = selection;
}
else
{
start = selection;
end = cursor;
}
if (text_tool->select_words)
{
if (! gtk_text_iter_starts_word (&start))
gtk_text_iter_backward_visible_word_starts (&start, 1);
if (! gtk_text_iter_ends_word (&end) &&
! gtk_text_iter_forward_visible_word_ends (&end, 1))
gtk_text_iter_forward_to_line_end (&end);
}
else if (text_tool->select_lines)
{
gtk_text_iter_set_line_offset (&start, 0);
gtk_text_iter_forward_to_line_end (&end);
}
if (gtk_text_iter_compare (&cursor, &selection) < 0)
{
cursor = start;
selection = end;
}
else
{
selection = start;
cursor = end;
}
}
if (! gtk_text_iter_equal (&cursor, &old_cursor) ||
! gtk_text_iter_equal (&selection, &old_selection))
{
gimp_draw_tool_pause (GIMP_DRAW_TOOL (text_tool));
gtk_text_buffer_select_range (buffer, &cursor, &selection);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (text_tool));
}
}
gboolean
gimp_text_tool_editor_key_press (GimpTextTool *text_tool,
GdkEventKey *kevent)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
GtkTextIter cursor;
GtkTextIter selection;
gboolean retval = TRUE;
if (! gtk_widget_has_focus (shell->canvas))
{
/* The focus is in the floating style editor, and the event
* was not handled there, focus the canvas.
*/
switch (kevent->keyval)
{
case GDK_KEY_Tab:
case GDK_KEY_KP_Tab:
case GDK_KEY_ISO_Left_Tab:
case GDK_KEY_Escape:
gtk_widget_grab_focus (shell->canvas);
return TRUE;
default:
break;
}
}
if (gtk_im_context_filter_keypress (text_tool->im_context, kevent))
{
text_tool->needs_im_reset = TRUE;
text_tool->x_pos = -1;
return TRUE;
}
gimp_text_tool_ensure_proxy (text_tool);
if (gtk_bindings_activate_event (GTK_OBJECT (text_tool->proxy_text_view),
kevent))
{
GIMP_LOG (TEXT_EDITING, "binding handled event");
return TRUE;
}
gtk_text_buffer_get_iter_at_mark (buffer, &cursor,
gtk_text_buffer_get_insert (buffer));
gtk_text_buffer_get_iter_at_mark (buffer, &selection,
gtk_text_buffer_get_selection_bound (buffer));
switch (kevent->keyval)
{
case GDK_KEY_Return:
case GDK_KEY_KP_Enter:
case GDK_KEY_ISO_Enter:
gimp_text_tool_reset_im_context (text_tool);
gimp_text_tool_enter_text (text_tool, "\n");
break;
case GDK_KEY_Tab:
case GDK_KEY_KP_Tab:
case GDK_KEY_ISO_Left_Tab:
gimp_text_tool_reset_im_context (text_tool);
gimp_text_tool_enter_text (text_tool, "\t");
break;
case GDK_KEY_Escape:
gimp_rectangle_tool_cancel (GIMP_RECTANGLE_TOOL (text_tool));
gimp_tool_control (GIMP_TOOL (text_tool), GIMP_TOOL_ACTION_HALT,
GIMP_TOOL (text_tool)->display);
break;
default:
retval = FALSE;
}
text_tool->x_pos = -1;
return retval;
}
gboolean
gimp_text_tool_editor_key_release (GimpTextTool *text_tool,
GdkEventKey *kevent)
{
if (gtk_im_context_filter_keypress (text_tool->im_context, kevent))
{
text_tool->needs_im_reset = TRUE;
return TRUE;
}
gimp_text_tool_ensure_proxy (text_tool);
if (gtk_bindings_activate_event (GTK_OBJECT (text_tool->proxy_text_view),
kevent))
{
GIMP_LOG (TEXT_EDITING, "binding handled event");
return TRUE;
}
return FALSE;
}
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);
}
}
void
gimp_text_tool_editor_get_cursor_rect (GimpTextTool *text_tool,
gboolean overwrite,
PangoRectangle *cursor_rect)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
PangoLayout *layout;
gint offset_x;
gint offset_y;
GtkTextIter cursor;
gint cursor_index;
g_return_if_fail (GIMP_IS_TEXT_TOOL (text_tool));
g_return_if_fail (cursor_rect != NULL);
gtk_text_buffer_get_iter_at_mark (buffer, &cursor,
gtk_text_buffer_get_insert (buffer));
cursor_index = gimp_text_buffer_get_iter_index (text_tool->buffer, &cursor,
TRUE);
gimp_text_tool_ensure_layout (text_tool);
layout = gimp_text_layout_get_pango_layout (text_tool->layout);
gimp_text_layout_get_offsets (text_tool->layout, &offset_x, &offset_y);
if (overwrite)
pango_layout_index_to_pos (layout, cursor_index, cursor_rect);
else
pango_layout_get_cursor_pos (layout, cursor_index, cursor_rect, NULL);
gimp_text_layout_transform_rect (text_tool->layout, cursor_rect);
cursor_rect->x = PANGO_PIXELS (cursor_rect->x) + offset_x;
cursor_rect->y = PANGO_PIXELS (cursor_rect->y) + offset_y;
cursor_rect->width = PANGO_PIXELS (cursor_rect->width);
cursor_rect->height = PANGO_PIXELS (cursor_rect->height);
}
/* private functions */
static void
gimp_text_tool_ensure_proxy (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
if (text_tool->offscreen_window &&
gtk_widget_get_screen (text_tool->offscreen_window) !=
gtk_widget_get_screen (GTK_WIDGET (shell)))
{
gtk_window_set_screen (GTK_WINDOW (text_tool->offscreen_window),
gtk_widget_get_screen (GTK_WIDGET (shell)));
gtk_window_move (GTK_WINDOW (text_tool->offscreen_window), -200, -200);
}
else if (! text_tool->offscreen_window)
{
text_tool->offscreen_window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_screen (GTK_WINDOW (text_tool->offscreen_window),
gtk_widget_get_screen (GTK_WIDGET (shell)));
gtk_window_move (GTK_WINDOW (text_tool->offscreen_window), -200, -200);
gtk_widget_show (text_tool->offscreen_window);
text_tool->proxy_text_view = gimp_text_proxy_new ();
gtk_container_add (GTK_CONTAINER (text_tool->offscreen_window),
text_tool->proxy_text_view);
gtk_widget_show (text_tool->proxy_text_view);
g_signal_connect_swapped (text_tool->proxy_text_view, "move-cursor",
G_CALLBACK (gimp_text_tool_move_cursor),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "insert-at-cursor",
G_CALLBACK (gimp_text_tool_insert_at_cursor),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "delete-from-cursor",
G_CALLBACK (gimp_text_tool_delete_from_cursor),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "backspace",
G_CALLBACK (gimp_text_tool_backspace),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "cut-clipboard",
G_CALLBACK (gimp_text_tool_cut_clipboard),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "copy-clipboard",
G_CALLBACK (gimp_text_tool_copy_clipboard),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "paste-clipboard",
G_CALLBACK (gimp_text_tool_paste_clipboard),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "toggle-overwrite",
G_CALLBACK (gimp_text_tool_toggle_overwrite),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "select-all",
G_CALLBACK (gimp_text_tool_select_all),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "change-size",
G_CALLBACK (gimp_text_tool_change_size),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "change-baseline",
G_CALLBACK (gimp_text_tool_change_baseline),
text_tool);
g_signal_connect_swapped (text_tool->proxy_text_view, "change-kerning",
G_CALLBACK (gimp_text_tool_change_kerning),
text_tool);
}
}
static void
gimp_text_tool_move_cursor (GimpTextTool *text_tool,
GtkMovementStep step,
gint count,
gboolean extend_selection)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
GtkTextIter cursor;
GtkTextIter selection;
GtkTextIter *sel_start;
gboolean cancel_selection = FALSE;
gint x_pos = -1;
GIMP_LOG (TEXT_EDITING, "%s count = %d, select = %s",
g_enum_get_value (g_type_class_ref (GTK_TYPE_MOVEMENT_STEP),
step)->value_name,
count,
extend_selection ? "TRUE" : "FALSE");
gtk_text_buffer_get_iter_at_mark (buffer, &cursor,
gtk_text_buffer_get_insert (buffer));
gtk_text_buffer_get_iter_at_mark (buffer, &selection,
gtk_text_buffer_get_selection_bound (buffer));
if (extend_selection)
{
sel_start = &selection;
}
else
{
/* when there is a selection, moving the cursor without
* extending it should move the cursor to the end of the
* selection that is in moving direction
*/
if (count > 0)
gtk_text_iter_order (&selection, &cursor);
else
gtk_text_iter_order (&cursor, &selection);
sel_start = &cursor;
/* if we actually have a selection, just move *to* the beginning/end
* of the selection and not *from* there on LOGICAL_POSITIONS
* and VISUAL_POSITIONS movement
*/
if (! gtk_text_iter_equal (&cursor, &selection))
cancel_selection = TRUE;
}
switch (step)
{
case GTK_MOVEMENT_LOGICAL_POSITIONS:
if (! cancel_selection)
gtk_text_iter_forward_visible_cursor_positions (&cursor, count);
break;
case GTK_MOVEMENT_VISUAL_POSITIONS:
if (! cancel_selection)
{
PangoLayout *layout;
const gchar *text;
if (! gimp_text_tool_ensure_layout (text_tool))
break;
layout = gimp_text_layout_get_pango_layout (text_tool->layout);
text = pango_layout_get_text (layout);
while (count != 0)
{
const gunichar word_joiner = 8288; /*g_utf8_get_char(WORD_JOINER);*/
gint index;
gint trailing = 0;
gint new_index;
index = gimp_text_buffer_get_iter_index (text_tool->buffer,
&cursor, TRUE);
if (count > 0)
{
if (g_utf8_get_char (text + index) == word_joiner)
pango_layout_move_cursor_visually (layout, TRUE,
index, 0, 1,
&new_index, &trailing);
else
new_index = index;
pango_layout_move_cursor_visually (layout, TRUE,
new_index, trailing, 1,
&new_index, &trailing);
count--;
}
else
{
pango_layout_move_cursor_visually (layout, TRUE,
index, 0, -1,
&new_index, &trailing);
if (new_index != -1 && new_index != G_MAXINT &&
g_utf8_get_char (text + new_index) == word_joiner)
{
pango_layout_move_cursor_visually (layout, TRUE,
new_index, trailing, -1,
&new_index, &trailing);
}
count++;
}
if (new_index != G_MAXINT && new_index != -1)
index = new_index;
else
break;
gimp_text_buffer_get_iter_at_index (text_tool->buffer,
&cursor, index, TRUE);
gtk_text_iter_forward_chars (&cursor, trailing);
}
}
break;
case GTK_MOVEMENT_WORDS:
if (count < 0)
{
gtk_text_iter_backward_visible_word_starts (&cursor, -count);
}
else if (count > 0)
{
if (! gtk_text_iter_forward_visible_word_ends (&cursor, count))
gtk_text_iter_forward_to_line_end (&cursor);
}
break;
case GTK_MOVEMENT_DISPLAY_LINES:
{
GtkTextIter start;
GtkTextIter end;
gint cursor_index;
PangoLayout *layout;
PangoLayoutLine *layout_line;
PangoLayoutIter *layout_iter;
PangoRectangle logical;
gint line;
gint trailing;
gint i;
gtk_text_buffer_get_bounds (buffer, &start, &end);
cursor_index = gimp_text_buffer_get_iter_index (text_tool->buffer,
&cursor, TRUE);
if (! gimp_text_tool_ensure_layout (text_tool))
break;
layout = gimp_text_layout_get_pango_layout (text_tool->layout);
pango_layout_index_to_line_x (layout, cursor_index, FALSE,
&line, &x_pos);
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);
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 && (x_pos <= logical.x ||
x_pos >= logical.x + logical.width))
x_pos = text_tool->x_pos;
line += count;
if (line < 0)
{
cursor = start;
break;
}
else if (line >= pango_layout_get_line_count (layout))
{
cursor = end;
break;
}
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_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,
&cursor_index, &trailing);
gimp_text_buffer_get_iter_at_index (text_tool->buffer, &cursor,
cursor_index, TRUE);
while (trailing--)
gtk_text_iter_forward_char (&cursor);
}
break;
case GTK_MOVEMENT_PAGES: /* well... */
case GTK_MOVEMENT_BUFFER_ENDS:
if (count < 0)
{
gtk_text_buffer_get_start_iter (buffer, &cursor);
}
else if (count > 0)
{
gtk_text_buffer_get_end_iter (buffer, &cursor);
}
break;
case GTK_MOVEMENT_PARAGRAPH_ENDS:
if (count < 0)
{
gtk_text_iter_set_line_offset (&cursor, 0);
}
else if (count > 0)
{
if (! gtk_text_iter_ends_line (&cursor))
gtk_text_iter_forward_to_line_end (&cursor);
}
break;
case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
if (count < 0)
{
gtk_text_iter_set_line_offset (&cursor, 0);
}
else if (count > 0)
{
if (! gtk_text_iter_ends_line (&cursor))
gtk_text_iter_forward_to_line_end (&cursor);
}
break;
default:
return;
}
text_tool->x_pos = x_pos;
gimp_draw_tool_pause (GIMP_DRAW_TOOL (text_tool));
gimp_text_tool_reset_im_context (text_tool);
gtk_text_buffer_select_range (buffer, &cursor, sel_start);
gimp_draw_tool_resume (GIMP_DRAW_TOOL (text_tool));
}
static void
gimp_text_tool_insert_at_cursor (GimpTextTool *text_tool,
const gchar *str)
{
gimp_text_buffer_insert (text_tool->buffer, str);
}
static gboolean
is_whitespace (gunichar ch,
gpointer user_data)
{
return (ch == ' ' || ch == '\t');
}
static gboolean
is_not_whitespace (gunichar ch,
gpointer user_data)
{
return ! is_whitespace (ch, user_data);
}
static gboolean
find_whitepace_region (const GtkTextIter *center,
GtkTextIter *start,
GtkTextIter *end)
{
*start = *center;
*end = *center;
if (gtk_text_iter_backward_find_char (start, is_not_whitespace, NULL, NULL))
gtk_text_iter_forward_char (start); /* we want the first whitespace... */
if (is_whitespace (gtk_text_iter_get_char (end), NULL))
gtk_text_iter_forward_find_char (end, is_not_whitespace, NULL, NULL);
return ! gtk_text_iter_equal (start, end);
}
static void
gimp_text_tool_delete_from_cursor (GimpTextTool *text_tool,
GtkDeleteType type,
gint count)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
GtkTextIter cursor;
GtkTextIter end;
GIMP_LOG (TEXT_EDITING, "%s count = %d",
g_enum_get_value (g_type_class_ref (GTK_TYPE_DELETE_TYPE),
type)->value_name,
count);
gimp_text_tool_reset_im_context (text_tool);
gtk_text_buffer_get_iter_at_mark (buffer, &cursor,
gtk_text_buffer_get_insert (buffer));
end = cursor;
switch (type)
{
case GTK_DELETE_CHARS:
if (gtk_text_buffer_get_has_selection (buffer))
{
gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
return;
}
else
{
gtk_text_iter_forward_cursor_positions (&end, count);
}
break;
case GTK_DELETE_WORD_ENDS:
if (count < 0)
{
if (! gtk_text_iter_starts_word (&cursor))
gtk_text_iter_backward_visible_word_starts (&cursor, 1);
}
else if (count > 0)
{
if (! gtk_text_iter_ends_word (&end) &&
! gtk_text_iter_forward_visible_word_ends (&end, 1))
gtk_text_iter_forward_to_line_end (&end);
}
break;
case GTK_DELETE_WORDS:
if (! gtk_text_iter_starts_word (&cursor))
gtk_text_iter_backward_visible_word_starts (&cursor, 1);
if (! gtk_text_iter_ends_word (&end) &&
! gtk_text_iter_forward_visible_word_ends (&end, 1))
gtk_text_iter_forward_to_line_end (&end);
break;
case GTK_DELETE_DISPLAY_LINES:
break;
case GTK_DELETE_DISPLAY_LINE_ENDS:
break;
case GTK_DELETE_PARAGRAPH_ENDS:
if (count < 0)
{
gtk_text_iter_set_line_offset (&cursor, 0);
}
else if (count > 0)
{
if (! gtk_text_iter_ends_line (&end))
gtk_text_iter_forward_to_line_end (&end);
else
gtk_text_iter_forward_cursor_positions (&end, 1);
}
break;
case GTK_DELETE_PARAGRAPHS:
break;
case GTK_DELETE_WHITESPACE:
find_whitepace_region (&cursor, &cursor, &end);
break;
}
if (! gtk_text_iter_equal (&cursor, &end))
{
gtk_text_buffer_delete_interactive (buffer, &cursor, &end, TRUE);
}
}
static void
gimp_text_tool_backspace (GimpTextTool *text_tool)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
gimp_text_tool_reset_im_context (text_tool);
if (gtk_text_buffer_get_has_selection (buffer))
{
gtk_text_buffer_delete_selection (buffer, TRUE, TRUE);
}
else
{
GtkTextIter cursor;
gtk_text_buffer_get_iter_at_mark (buffer, &cursor,
gtk_text_buffer_get_insert (buffer));
gtk_text_buffer_backspace (buffer, &cursor, TRUE, TRUE);
}
}
static void
gimp_text_tool_toggle_overwrite (GimpTextTool *text_tool)
{
gimp_draw_tool_pause (GIMP_DRAW_TOOL (text_tool));
text_tool->overwrite_mode = ! text_tool->overwrite_mode;
gimp_draw_tool_resume (GIMP_DRAW_TOOL (text_tool));
}
static void
gimp_text_tool_select_all (GimpTextTool *text_tool,
gboolean select)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
gimp_draw_tool_pause (GIMP_DRAW_TOOL (text_tool));
if (select)
{
GtkTextIter start, end;
gtk_text_buffer_get_bounds (buffer, &start, &end);
gtk_text_buffer_select_range (buffer, &start, &end);
}
else
{
GtkTextIter cursor;
gtk_text_buffer_get_iter_at_mark (buffer, &cursor,
gtk_text_buffer_get_insert (buffer));
gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &cursor);
}
gimp_draw_tool_resume (GIMP_DRAW_TOOL (text_tool));
}
static void
gimp_text_tool_change_size (GimpTextTool *text_tool,
gdouble amount)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
GtkTextIter start;
GtkTextIter end;
if (! gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
{
return;
}
gtk_text_iter_order (&start, &end);
gimp_text_buffer_change_size (text_tool->buffer, &start, &end,
amount * PANGO_SCALE);
}
static void
gimp_text_tool_change_baseline (GimpTextTool *text_tool,
gdouble amount)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
GtkTextIter start;
GtkTextIter end;
if (! gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
{
gtk_text_buffer_get_iter_at_mark (buffer, &start,
gtk_text_buffer_get_insert (buffer));
gtk_text_buffer_get_end_iter (buffer, &end);
}
gtk_text_iter_order (&start, &end);
gimp_text_buffer_change_baseline (text_tool->buffer, &start, &end,
amount * PANGO_SCALE);
}
static void
gimp_text_tool_change_kerning (GimpTextTool *text_tool,
gdouble amount)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
GtkTextIter start;
GtkTextIter end;
if (! gtk_text_buffer_get_selection_bounds (buffer, &start, &end))
{
gtk_text_buffer_get_iter_at_mark (buffer, &start,
gtk_text_buffer_get_insert (buffer));
end = start;
gtk_text_iter_forward_char (&end);
}
gtk_text_iter_order (&start, &end);
gimp_text_buffer_change_kerning (text_tool->buffer, &start, &end,
amount * PANGO_SCALE);
}
static void
gimp_text_tool_options_notify (GimpTextOptions *options,
GParamSpec *pspec,
GimpTextTool *text_tool)
{
const gchar *param_name = g_param_spec_get_name (pspec);
if (! strcmp (param_name, "use-editor"))
{
if (options->use_editor)
{
gimp_text_tool_editor_dialog (text_tool);
}
else
{
if (text_tool->editor_dialog)
gtk_widget_destroy (text_tool->editor_dialog);
}
}
}
static void
gimp_text_tool_editor_dialog (GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpTextOptions *options = GIMP_TEXT_TOOL_GET_OPTIONS (text_tool);
GimpDialogFactory *dialog_factory;
GtkWindow *parent = NULL;
gdouble xres = 1.0;
gdouble yres = 1.0;
if (text_tool->editor_dialog)
{
gtk_window_present (GTK_WINDOW (text_tool->editor_dialog));
return;
}
dialog_factory = gimp_dialog_factory_get_singleton ();
if (tool->display)
{
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
parent = GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (shell)));
}
if (text_tool->image)
gimp_image_get_resolution (text_tool->image, &xres, &yres);
text_tool->editor_dialog =
gimp_text_options_editor_new (parent, tool->tool_info->gimp, options,
gimp_dialog_factory_get_menu_factory (dialog_factory),
_("GIMP Text Editor"),
text_tool->proxy, text_tool->buffer,
xres, yres);
g_object_add_weak_pointer (G_OBJECT (text_tool->editor_dialog),
(gpointer) &text_tool->editor_dialog);
gimp_dialog_factory_add_foreign (dialog_factory,
"gimp-text-tool-dialog",
text_tool->editor_dialog,
parent ?
gtk_widget_get_screen (GTK_WIDGET (parent)) :
gdk_screen_get_default (), /* FIXME monitor */
parent ?
gimp_widget_get_monitor (GTK_WIDGET (parent)) :
0 /* FIXME monitor */);
g_signal_connect (text_tool->editor_dialog, "destroy",
G_CALLBACK (gimp_text_tool_editor_destroy),
text_tool);
gtk_widget_show (text_tool->editor_dialog);
}
static void
gimp_text_tool_editor_destroy (GtkWidget *dialog,
GimpTextTool *text_tool)
{
GimpTextOptions *options = GIMP_TEXT_TOOL_GET_OPTIONS (text_tool);
g_object_set (options,
"use-editor", FALSE,
NULL);
}
static void
gimp_text_tool_enter_text (GimpTextTool *text_tool,
const gchar *str)
{
GtkTextBuffer *buffer = GTK_TEXT_BUFFER (text_tool->buffer);
gboolean had_selection;
had_selection = gtk_text_buffer_get_has_selection (buffer);
gtk_text_buffer_begin_user_action (buffer);
gimp_text_tool_delete_selection (text_tool);
if (! had_selection && text_tool->overwrite_mode && strcmp (str, "\n"))
{
GtkTextIter cursor;
gtk_text_buffer_get_iter_at_mark (buffer, &cursor,
gtk_text_buffer_get_insert (buffer));
if (! gtk_text_iter_ends_line (&cursor))
gimp_text_tool_delete_from_cursor (text_tool, GTK_DELETE_CHARS, 1);
}
gimp_text_buffer_insert (text_tool->buffer, str);
gtk_text_buffer_end_user_action (buffer);
}
static void
gimp_text_tool_xy_to_iter (GimpTextTool *text_tool,
gdouble x,
gdouble y,
GtkTextIter *iter)
{
PangoLayout *layout;
gint offset_x;
gint offset_y;
gint index;
gint trailing;
gimp_text_tool_ensure_layout (text_tool);
gimp_text_layout_untransform_point (text_tool->layout, &x, &y);
gimp_text_layout_get_offsets (text_tool->layout, &offset_x, &offset_y);
x -= offset_x;
y -= offset_y;
layout = gimp_text_layout_get_pango_layout (text_tool->layout);
pango_layout_xy_to_index (layout,
x * PANGO_SCALE,
y * PANGO_SCALE,
&index, &trailing);
gimp_text_buffer_get_iter_at_index (text_tool->buffer, iter, index, TRUE);
if (trailing)
gtk_text_iter_forward_char (iter);
}
static void
gimp_text_tool_im_commit (GtkIMContext *context,
const gchar *str,
GimpTextTool *text_tool)
{
gimp_text_tool_enter_text (text_tool, str);
}
static void
gimp_text_tool_im_preedit_start (GtkIMContext *context,
GimpTextTool *text_tool)
{
GimpTool *tool = GIMP_TOOL (text_tool);
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
GtkStyle *style = gtk_widget_get_style (shell->canvas);
GtkWidget *frame;
GtkWidget *ebox;
PangoRectangle cursor_rect = { 0, };
gint off_x, off_y;
if (text_tool->text)
gimp_text_tool_editor_get_cursor_rect (text_tool,
text_tool->overwrite_mode,
&cursor_rect);
g_object_get (text_tool, "x1", &off_x, "y1", &off_y, NULL);
text_tool->preedit_overlay = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (text_tool->preedit_overlay),
GTK_SHADOW_OUT);
gimp_display_shell_add_overlay (shell,
text_tool->preedit_overlay,
cursor_rect.x + off_x,
cursor_rect.y + off_y,
GIMP_HANDLE_ANCHOR_NORTH_WEST, 0, 0);
gimp_overlay_box_set_child_opacity (GIMP_OVERLAY_BOX (shell->canvas),
text_tool->preedit_overlay, 0.7);
gtk_widget_show (text_tool->preedit_overlay);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_container_add (GTK_CONTAINER (text_tool->preedit_overlay), frame);
gtk_widget_show (frame);
ebox = gtk_event_box_new ();
gtk_widget_modify_bg (ebox, GTK_STATE_NORMAL,
&style->base[GTK_STATE_NORMAL]);
gtk_container_add (GTK_CONTAINER (frame), ebox);
gtk_widget_show (ebox);
text_tool->preedit_label = gtk_label_new (NULL);
gtk_widget_modify_bg (text_tool->preedit_label, GTK_STATE_NORMAL,
&style->text[GTK_STATE_NORMAL]);
gtk_misc_set_padding (GTK_MISC (text_tool->preedit_label), 2, 2);
gtk_container_add (GTK_CONTAINER (ebox), text_tool->preedit_label);
gtk_widget_show (text_tool->preedit_label);
}
static void
gimp_text_tool_im_preedit_end (GtkIMContext *context,
GimpTextTool *text_tool)
{
if (text_tool->preedit_overlay)
{
gtk_widget_destroy (text_tool->preedit_overlay);
text_tool->preedit_overlay = NULL;
text_tool->preedit_label = NULL;
}
}
static void
gimp_text_tool_im_preedit_changed (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);
if (text_tool->preedit_label)
gtk_label_set_text (GTK_LABEL (text_tool->preedit_label),
text_tool->preedit_string);
}
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