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Gimp/app/widgets/gimpwidgets-utils.c
Michael Natterer a446f3d7fb use the new tooltip API instead of the old deprecated one. Removed 
2007-11-09  Michael Natterer  <mitch@gimp.org>

	* libgimpwidgets/gimphelpui.[ch]: use the new tooltip API instead
	of the old deprecated one. Removed _gimp_help_init(). Remember
	whether tooltips are enabled or not in a local variable that can
	only be altered at startup time and not after. The API now expects
	markup instead of plain text which might cause warnings and
	perhaps needs to be changed.

	* libgimpwidgets/gimpwidgets-private.c: don't call _gimp_help_init().

	* app/config/gimpguiconfig.c: made show-tooltips a
	GIMP_CONFIG_PARAM_RESTART property.

	* app/widgets/gimptoolbox-color-area.c: don't add the tooltip here...

	* app/widgets/gimptoolbox.c: ...but here (as for all other
	indicators). Also escape '&' properly because we now use markup.

	* app/tools/gimpselectionoptions.c
	* app/widgets/gimpeditor.c
	* app/widgets/gimpwidgets-utils.c: print modifiers and
	shortcuts in bold instead of in ().

	* app/widgets/gimpcontainertreeview.c: show tooltips on rows if
	gimp_viewable_get_description() returns a tip.

	* app/dialogs/preferences-dialog.c
	* plug-ins/jpeg/jpeg-save.c
	* plug-ins/MapObject/mapobject_ui.c
	* plug-ins/Lighting/lighting_ui.c
	* plug-ins/common/animationplay.c
	* plug-ins/common/warp.c: no need to add event boxes just to have
	tooltips, the new ones work on all widgets.


svn path=/trunk/; revision=24093
2007-11-09 11:17:00 +00:00

1075 lines
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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpwidgets-utils.c
* Copyright (C) 1999-2003 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <glib/gstdio.h>
#include <glib.h>
#ifdef G_OS_WIN32
#include "libgimpbase/gimpwin32-io.h"
#endif
#include <gtk/gtk.h>
#ifdef GDK_WINDOWING_WIN32
#include <gdk/gdkwin32.h>
#endif
#ifdef GDK_WINDOWING_X11
#include <gdk/gdkx.h>
#endif
#include "libgimpbase/gimpbase.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpcolor/gimpcolor.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "gimperrordialog.h"
#include "gimpwidgets-utils.h"
#include "gimp-intl.h"
/**
* gimp_menu_position:
* @menu: a #GtkMenu widget
* @x: pointer to horizontal position
* @y: pointer to vertical position
*
* Positions a #GtkMenu so that it pops up on screen. This function
* takes care of the preferred popup direction (taken from the widget
* render direction) and it handles multiple monitors representing a
* single #GdkScreen (Xinerama).
*
* You should call this function with @x and @y initialized to the
* origin of the menu. This is typically the center of the widget the
* menu is popped up from. gimp_menu_position() will then decide if
* and how these initial values need to be changed.
**/
void
gimp_menu_position (GtkMenu *menu,
gint *x,
gint *y)
{
GtkWidget *widget;
GdkScreen *screen;
GtkRequisition requisition;
GdkRectangle rect;
gint monitor;
g_return_if_fail (GTK_IS_MENU (menu));
g_return_if_fail (x != NULL);
g_return_if_fail (y != NULL);
widget = GTK_WIDGET (menu);
screen = gtk_widget_get_screen (widget);
monitor = gdk_screen_get_monitor_at_point (screen, *x, *y);
gdk_screen_get_monitor_geometry (screen, monitor, &rect);
gtk_menu_set_screen (menu, screen);
gtk_widget_size_request (widget, &requisition);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
{
*x -= requisition.width;
if (*x < rect.x)
*x += requisition.width;
}
else
{
if (*x + requisition.width > rect.x + rect.width)
*x -= requisition.width;
}
if (*x < rect.x)
*x = rect.x;
if (*y + requisition.height > rect.y + rect.height)
*y -= requisition.height;
if (*y < rect.y)
*y = rect.y;
}
/**
* gimp_button_menu_position:
* @button: a button widget to popup the menu from
* @menu: the menu to position
* @position: the preferred popup direction for the menu (left or right)
* @x: return location for x coordinate
* @y: return location for y coordinate
*
* Utility function to position a menu that pops up from a button.
**/
void
gimp_button_menu_position (GtkWidget *button,
GtkMenu *menu,
GtkPositionType position,
gint *x,
gint *y)
{
GdkScreen *screen;
GtkRequisition menu_requisition;
GdkRectangle rect;
gint monitor;
g_return_if_fail (GTK_WIDGET_REALIZED (button));
g_return_if_fail (GTK_IS_MENU (menu));
g_return_if_fail (x != NULL);
g_return_if_fail (y != NULL);
if (gtk_widget_get_direction (button) == GTK_TEXT_DIR_RTL)
{
switch (position)
{
case GTK_POS_LEFT: position = GTK_POS_RIGHT; break;
case GTK_POS_RIGHT: position = GTK_POS_LEFT; break;
default:
break;
}
}
gdk_window_get_origin (button->window, x, y);
gtk_widget_size_request (GTK_WIDGET (menu), &menu_requisition);
screen = gtk_widget_get_screen (button);
monitor = gdk_screen_get_monitor_at_point (screen, *x, *y);
gdk_screen_get_monitor_geometry (screen, monitor, &rect);
gtk_menu_set_screen (menu, screen);
if (GTK_WIDGET_NO_WINDOW (button))
*x += button->allocation.x;
switch (position)
{
case GTK_POS_LEFT:
*x -= menu_requisition.width;
if (*x < rect.x)
*x += menu_requisition.width + button->allocation.width;
break;
case GTK_POS_RIGHT:
*x += button->allocation.width;
if (*x + menu_requisition.width > rect.x + rect.width)
*x -= button->allocation.width + menu_requisition.width;
break;
default:
g_warning ("%s: unhandled position (%d)", G_STRFUNC, position);
break;
}
if (GTK_WIDGET_NO_WINDOW (button))
*y += button->allocation.y;
*y += button->allocation.height / 2;
if (*y + menu_requisition.height > rect.y + rect.height)
*y -= menu_requisition.height;
if (*y < rect.y)
*y = rect.y;
}
void
gimp_table_attach_stock (GtkTable *table,
gint row,
const gchar *stock_id,
GtkWidget *widget,
gint colspan,
gboolean left_align)
{
GtkWidget *image;
g_return_if_fail (GTK_IS_TABLE (table));
g_return_if_fail (stock_id != NULL);
g_return_if_fail (GTK_IS_WIDGET (widget));
image = gtk_image_new_from_stock (stock_id, GTK_ICON_SIZE_BUTTON);
gtk_misc_set_alignment (GTK_MISC (image), 1.0, 0.5);
gtk_table_attach (table, image, 0, 1, row, row + 1,
GTK_FILL, GTK_FILL, 0, 0);
gtk_widget_show (image);
if (left_align)
{
GtkWidget *hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (hbox), widget, FALSE, FALSE, 0);
gtk_widget_show (widget);
widget = hbox;
}
gtk_table_attach (table, widget, 1, 1 + colspan, row, row + 1,
GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (widget);
}
void
gimp_enum_radio_frame_add (GtkFrame *frame,
GtkWidget *widget,
gint enum_value)
{
GtkWidget *vbox;
GList *children;
GList *list;
gint pos;
g_return_if_fail (GTK_IS_FRAME (frame));
g_return_if_fail (GTK_IS_WIDGET (widget));
vbox = gtk_bin_get_child (GTK_BIN (frame));
g_return_if_fail (GTK_IS_VBOX (vbox));
children = gtk_container_get_children (GTK_CONTAINER (vbox));
for (list = children, pos = 1;
list;
list = g_list_next (list), pos++)
{
if (GTK_IS_RADIO_BUTTON (list->data) &&
GPOINTER_TO_INT (g_object_get_data (list->data, "gimp-item-data")) ==
enum_value)
{
GtkWidget *radio = list->data;
GtkWidget *hbox;
GtkWidget *spacer;
gint indicator_size;
gint indicator_spacing;
gint focus_width;
gint focus_padding;
gtk_widget_style_get (radio,
"indicator-size", &indicator_size,
"indicator-spacing", &indicator_spacing,
"focus-line-width", &focus_width,
"focus-padding", &focus_padding,
NULL);
hbox = gtk_hbox_new (FALSE, 0);
spacer = gtk_vbox_new (FALSE, 0);
gtk_widget_set_size_request (spacer,
indicator_size +
3 * indicator_spacing +
focus_width +
focus_padding +
GTK_CONTAINER (radio)->border_width,
-1);
gtk_box_pack_start (GTK_BOX (hbox), spacer, FALSE, FALSE, 0);
gtk_widget_show (spacer);
gtk_box_pack_start (GTK_BOX (hbox), widget, TRUE, TRUE, 0);
gtk_widget_show (widget);
g_object_set_data (G_OBJECT (radio), "set_sensitive", hbox);
g_signal_connect (radio, "toggled",
G_CALLBACK (gimp_toggle_button_sensitive_update),
NULL);
gtk_widget_set_sensitive (hbox,
GTK_TOGGLE_BUTTON (list->data)->active);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_box_reorder_child (GTK_BOX (vbox), hbox, pos);
gtk_widget_show (hbox);
break;
}
}
g_list_free (children);
}
GtkIconSize
gimp_get_icon_size (GtkWidget *widget,
const gchar *stock_id,
GtkIconSize max_size,
gint width,
gint height)
{
GtkIconSet *icon_set;
GtkIconSize *sizes;
gint n_sizes;
gint i;
gint width_diff = 1024;
gint height_diff = 1024;
gint max_width;
gint max_height;
GtkIconSize icon_size = GTK_ICON_SIZE_MENU;
GtkSettings *settings;
g_return_val_if_fail (GTK_IS_WIDGET (widget), icon_size);
g_return_val_if_fail (stock_id != NULL, icon_size);
g_return_val_if_fail (width > 0, icon_size);
g_return_val_if_fail (height > 0, icon_size);
icon_set = gtk_style_lookup_icon_set (widget->style, stock_id);
if (! icon_set)
return GTK_ICON_SIZE_INVALID;
settings = gtk_widget_get_settings (widget);
if (! gtk_icon_size_lookup_for_settings (settings, max_size,
&max_width, &max_height))
{
max_width = 1024;
max_height = 1024;
}
gtk_icon_set_get_sizes (icon_set, &sizes, &n_sizes);
for (i = 0; i < n_sizes; i++)
{
gint icon_width;
gint icon_height;
if (gtk_icon_size_lookup_for_settings (settings, sizes[i],
&icon_width, &icon_height))
{
if (icon_width <= width &&
icon_height <= height &&
icon_width <= max_width &&
icon_height <= max_height &&
((width - icon_width) < width_diff ||
(height - icon_height) < height_diff))
{
width_diff = width - icon_width;
height_diff = height - icon_height;
icon_size = sizes[i];
}
}
}
g_free (sizes);
return icon_size;
}
const gchar *
gimp_get_mod_name_shift (void)
{
static gchar *mod_name_shift = NULL;
if (! mod_name_shift)
{
GtkAccelLabelClass *accel_label_class;
accel_label_class = g_type_class_ref (GTK_TYPE_ACCEL_LABEL);
mod_name_shift = g_strdup (accel_label_class->mod_name_shift);
g_type_class_unref (accel_label_class);
}
return (const gchar *) mod_name_shift;
}
const gchar *
gimp_get_mod_name_control (void)
{
static gchar *mod_name_control = NULL;
if (! mod_name_control)
{
GtkAccelLabelClass *accel_label_class;
accel_label_class = g_type_class_ref (GTK_TYPE_ACCEL_LABEL);
mod_name_control = g_strdup (accel_label_class->mod_name_control);
g_type_class_unref (accel_label_class);
}
return (const gchar *) mod_name_control;
}
const gchar *
gimp_get_mod_name_alt (void)
{
static gchar *mod_name_alt = NULL;
if (! mod_name_alt)
{
GtkAccelLabelClass *accel_label_class;
accel_label_class = g_type_class_ref (GTK_TYPE_ACCEL_LABEL);
mod_name_alt = g_strdup (accel_label_class->mod_name_alt);
g_type_class_unref (accel_label_class);
}
return (const gchar *) mod_name_alt;
}
const gchar *
gimp_get_mod_separator (void)
{
static gchar *mod_separator = NULL;
if (! mod_separator)
{
GtkAccelLabelClass *accel_label_class;
accel_label_class = g_type_class_ref (GTK_TYPE_ACCEL_LABEL);
mod_separator = g_strdup (accel_label_class->mod_separator);
g_type_class_unref (accel_label_class);
}
return (const gchar *) mod_separator;
}
const gchar *
gimp_get_mod_string (GdkModifierType modifiers)
{
static struct
{
GdkModifierType modifiers;
gchar *name;
}
modifier_strings[] =
{
{ GDK_SHIFT_MASK, NULL },
{ GDK_CONTROL_MASK, NULL },
{ GDK_MOD1_MASK, NULL },
{ GDK_SHIFT_MASK | GDK_CONTROL_MASK, NULL },
{ GDK_SHIFT_MASK | GDK_MOD1_MASK, NULL },
{ GDK_CONTROL_MASK | GDK_MOD1_MASK, NULL },
{ GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK, NULL }
};
gint i;
for (i = 0; i < G_N_ELEMENTS (modifier_strings); i++)
{
if (modifiers == modifier_strings[i].modifiers)
{
if (! modifier_strings[i].name)
{
GString *str = g_string_new (NULL);
if (modifiers & GDK_SHIFT_MASK)
{
g_string_append (str, gimp_get_mod_name_shift ());
}
if (modifiers & GDK_CONTROL_MASK)
{
if (str->len)
g_string_append (str, gimp_get_mod_separator ());
g_string_append (str, gimp_get_mod_name_control ());
}
if (modifiers & GDK_MOD1_MASK)
{
if (str->len)
g_string_append (str, gimp_get_mod_separator ());
g_string_append (str, gimp_get_mod_name_alt ());
}
modifier_strings[i].name = g_string_free (str, FALSE);
}
return modifier_strings[i].name;
}
}
return NULL;
}
#define BUF_SIZE 100
/**
* gimp_suggest_modifiers:
* @message: initial text for the message
* @modifiers: bit mask of modifiers that should be suggested
* @shift_format: optional format string for the Shift modifier
* @control_format: optional format string for the Ctrl modifier
* @alt_format: optional format string for the Alt modifier
*
* Utility function to build a message suggesting to use some
* modifiers for performing different actions (only Shift, Ctrl and
* Alt are currently supported). If some of these modifiers are
* already active, they will not be suggested. The optional format
* strings #shift_format, #control_format and #alt_format may be used
* to describe what the modifier will do. They must contain a single
* '%%s' which will be replaced by the name of the modifier. They
* can also be %NULL if the modifier name should be left alone.
*
* Return value: a newly allocated string containing the message.
**/
gchar *
gimp_suggest_modifiers (const gchar *message,
GdkModifierType modifiers,
const gchar *shift_format,
const gchar *control_format,
const gchar *alt_format)
{
gchar msg_buf[3][BUF_SIZE];
gint num_msgs = 0;
gboolean try = FALSE;
if (modifiers & GDK_SHIFT_MASK)
{
if (shift_format && *shift_format)
{
g_snprintf (msg_buf[num_msgs], BUF_SIZE, shift_format,
gimp_get_mod_name_shift ());
}
else
{
g_strlcpy (msg_buf[num_msgs], gimp_get_mod_name_shift (), BUF_SIZE);
try = TRUE;
}
num_msgs++;
}
if (modifiers & GDK_CONTROL_MASK)
{
if (control_format && *control_format)
{
g_snprintf (msg_buf[num_msgs], BUF_SIZE, control_format,
gimp_get_mod_name_control ());
}
else
{
g_strlcpy (msg_buf[num_msgs], gimp_get_mod_name_control (), BUF_SIZE);
try = TRUE;
}
num_msgs++;
}
if (modifiers & GDK_MOD1_MASK)
{
if (alt_format && *alt_format)
{
g_snprintf (msg_buf[num_msgs], BUF_SIZE, alt_format,
gimp_get_mod_name_alt ());
}
else
{
g_strlcpy (msg_buf[num_msgs], gimp_get_mod_name_alt (), BUF_SIZE);
try = TRUE;
}
num_msgs++;
}
/* This convoluted way to build the message using multiple format strings
* tries to make the messages easier to translate to other languages.
*/
switch (num_msgs)
{
case 1:
return g_strdup_printf (try ? _("%s (try %s)") : _("%s (%s)"),
message, msg_buf[0]);
case 2:
return g_strdup_printf (_("%s (try %s, %s)"),
message, msg_buf[0], msg_buf[1]);
case 3:
return g_strdup_printf (_("%s (try %s, %s, %s)"),
message, msg_buf[0], msg_buf[1], msg_buf[2]);
}
return g_strdup (message);
}
#undef BUF_SIZE
/**
* gimp_get_screen_resolution:
* @screen: a #GdkScreen or %NULL
* @xres: returns the horizontal screen resolution (in dpi)
* @yres: returns the vertical screen resolution (in dpi)
*
* Retrieves the screen resolution from GDK. If @screen is %NULL, the
* default screen is used.
**/
void
gimp_get_screen_resolution (GdkScreen *screen,
gdouble *xres,
gdouble *yres)
{
gint width, height;
gint width_mm, height_mm;
gdouble x = 0.0;
gdouble y = 0.0;
g_return_if_fail (screen == NULL || GDK_IS_SCREEN (screen));
g_return_if_fail (xres != NULL);
g_return_if_fail (yres != NULL);
if (!screen)
screen = gdk_screen_get_default ();
width = gdk_screen_get_width (screen);
height = gdk_screen_get_height (screen);
width_mm = gdk_screen_get_width_mm (screen);
height_mm = gdk_screen_get_height_mm (screen);
/*
* From xdpyinfo.c:
*
* there are 2.54 centimeters to an inch; so there are 25.4 millimeters.
*
* dpi = N pixels / (M millimeters / (25.4 millimeters / 1 inch))
* = N pixels / (M inch / 25.4)
* = N * 25.4 pixels / M inch
*/
if (width_mm > 0 && height_mm > 0)
{
x = (width * 25.4) / (gdouble) width_mm;
y = (height * 25.4) / (gdouble) height_mm;
}
if (x < GIMP_MIN_RESOLUTION || x > GIMP_MAX_RESOLUTION ||
y < GIMP_MIN_RESOLUTION || y > GIMP_MAX_RESOLUTION)
{
g_warning ("GDK returned bogus values for the screen resolution, "
"using 96 dpi instead.");
x = 96.0;
y = 96.0;
}
/* round the value to full integers to give more pleasant results */
*xres = ROUND (x);
*yres = ROUND (y);
}
/**
* gimp_rgb_get_gdk_color:
* @rgb: the source color as #GimpRGB
* @gdk_color: pointer to a #GdkColor
*
* Initializes @gdk_color from a #GimpRGB. This function does not
* allocate the color for you. Depending on how you want to use it,
* you may have to call gdk_colormap_alloc_color().
**/
void
gimp_rgb_get_gdk_color (const GimpRGB *rgb,
GdkColor *gdk_color)
{
guchar r, g, b;
g_return_if_fail (rgb != NULL);
g_return_if_fail (gdk_color != NULL);
gimp_rgb_get_uchar (rgb, &r, &g, &b);
gdk_color->red = (r << 8) | r;
gdk_color->green = (g << 8) | g;
gdk_color->blue = (b << 8) | b;
}
/**
* gimp_rgb_set_gdk_color:
* @rgb: a #GimpRGB that is to be set
* @gdk_color: pointer to the source #GdkColor
*
* Initializes @rgb from a #GdkColor. This function does not touch
* the alpha value of @rgb.
**/
void
gimp_rgb_set_gdk_color (GimpRGB *rgb,
const GdkColor *gdk_color)
{
guchar r, g, b;
g_return_if_fail (rgb != NULL);
g_return_if_fail (gdk_color != NULL);
r = gdk_color->red >> 8;
g = gdk_color->green >> 8;
b = gdk_color->blue >> 8;
gimp_rgb_set_uchar (rgb, r, g, b);
}
void
gimp_window_set_hint (GtkWindow *window,
GimpWindowHint hint)
{
g_return_if_fail (GTK_IS_WINDOW (window));
switch (hint)
{
case GIMP_WINDOW_HINT_NORMAL:
gtk_window_set_type_hint (window, GDK_WINDOW_TYPE_HINT_NORMAL);
break;
case GIMP_WINDOW_HINT_UTILITY:
gtk_window_set_type_hint (window, GDK_WINDOW_TYPE_HINT_UTILITY);
break;
case GIMP_WINDOW_HINT_KEEP_ABOVE:
gtk_window_set_keep_above (window, TRUE);
break;
}
}
/**
* gimp_window_get_native:
* @window: a #GtkWindow
*
* This function is used to pass a window handle to plug-ins so that
* they can set their dialog windows transient to the parent window.
*
* Return value: a native window handle of the window's #GdkWindow or 0
* if the window isn't realized yet
*/
GdkNativeWindow
gimp_window_get_native (GtkWindow *window)
{
g_return_val_if_fail (GTK_IS_WINDOW (window), 0);
#ifdef GDK_NATIVE_WINDOW_POINTER
#ifdef __GNUC__
#warning gimp_window_get_native() unimplementable for the target windowing system
#endif
return (GdkNativeWindow)0;
#endif
#ifdef GDK_WINDOWING_WIN32
if (window && GTK_WIDGET_REALIZED (window))
return (GdkNativeWindow)GDK_WINDOW_HWND (GTK_WIDGET (window)->window);
#endif
#ifdef GDK_WINDOWING_X11
if (window && GTK_WIDGET_REALIZED (window))
return GDK_WINDOW_XID (GTK_WIDGET (window)->window);
#endif
return (GdkNativeWindow)0;
}
static void
gimp_window_transient_realized (GtkWidget *window,
GdkWindow *parent)
{
if (GTK_WIDGET_REALIZED (window))
gdk_window_set_transient_for (window->window, parent);
}
/* similar to what we have in libgimp/gimpui.c */
void
gimp_window_set_transient_for (GtkWindow *window,
guint32 parent_ID)
{
/* Cross-process transient-for is broken in gdk/win32 <= 2.10.6. It
* causes hangs, at least when used as by the gimp and script-fu
* processes. In some newer GTK+ version it will be fixed to be a
* no-op. If it eventually is fixed to actually work, change this to
* a run-time check of GTK+ version. Remember to change also the
* function with the same name in libgimp/gimpui.c
*/
#ifndef GDK_WINDOWING_WIN32
GdkWindow *parent;
parent = gdk_window_foreign_new_for_display (gdk_display_get_default (),
parent_ID);
if (! parent)
return;
if (GTK_WIDGET_REALIZED (window))
gdk_window_set_transient_for (GTK_WIDGET (window)->window, parent);
g_signal_connect_object (window, "realize",
G_CALLBACK (gimp_window_transient_realized),
parent, 0);
g_object_unref (parent);
#endif
}
gboolean
gimp_text_buffer_load (GtkTextBuffer *buffer,
const gchar *filename,
GError **error)
{
FILE *file;
gchar buf[2048];
gint remaining = 0;
GtkTextIter iter;
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
g_return_val_if_fail (filename != NULL, FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
file = g_fopen (filename, "r");
if (! file)
{
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
g_strerror (errno));
return FALSE;
}
gtk_text_buffer_set_text (buffer, "", 0);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
while (! feof (file))
{
const char *leftover;
gint count;
gint to_read = sizeof (buf) - remaining - 1;
count = fread (buf + remaining, 1, to_read, file);
buf[count + remaining] = '\0';
g_utf8_validate (buf, count + remaining, &leftover);
gtk_text_buffer_insert (buffer, &iter, buf, leftover - buf);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, -1);
remaining = (buf + remaining + count) - leftover;
g_memmove (buf, leftover, remaining);
if (remaining > 6 || count < to_read)
break;
}
if (remaining)
g_message (_("Invalid UTF-8 data in file '%s'."),
gimp_filename_to_utf8 (filename));
fclose (file);
return TRUE;
}
gboolean
gimp_text_buffer_save (GtkTextBuffer *buffer,
const gchar *filename,
gboolean selection_only,
GError **error)
{
GtkTextIter start_iter;
GtkTextIter end_iter;
gint fd;
gchar *text_contents;
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
g_return_val_if_fail (filename != NULL, FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
fd = g_open (filename, O_WRONLY | O_CREAT | O_APPEND, S_IRUSR | S_IWUSR);
if (fd == -1)
{
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
g_strerror (errno));
return FALSE;
}
if (selection_only)
gtk_text_buffer_get_selection_bounds (buffer, &start_iter, &end_iter);
else
gtk_text_buffer_get_bounds (buffer, &start_iter, &end_iter);
text_contents = gtk_text_buffer_get_text (buffer,
&start_iter, &end_iter, TRUE);
if (text_contents)
{
gint text_length = strlen (text_contents);
if (text_length > 0)
{
gint bytes_written;
bytes_written = write (fd, text_contents, text_length);
if (bytes_written != text_length)
{
g_free (text_contents);
close (fd);
g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno),
g_strerror (errno));
return FALSE;
}
}
g_free (text_contents);
}
close (fd);
return TRUE;
}
void
gimp_toggle_button_set_visible (GtkToggleButton *toggle,
GtkWidget *widget)
{
g_return_if_fail (GTK_IS_TOGGLE_BUTTON (toggle));
g_return_if_fail (GTK_IS_WIDGET (widget));
if (gtk_toggle_button_get_active (toggle))
gtk_widget_show (widget);
else
gtk_widget_hide (widget);
}
static gboolean
gimp_widget_accel_find_func (GtkAccelKey *key,
GClosure *closure,
gpointer data)
{
return (GClosure *) data == closure;
}
static void
gimp_widget_accel_changed (GtkAccelGroup *accel_group,
guint unused1,
GdkModifierType unused2,
GClosure *accel_closure,
GtkWidget *widget)
{
GClosure *widget_closure;
widget_closure = g_object_get_data (G_OBJECT (widget), "gimp-accel-closure");
if (accel_closure == widget_closure)
{
GtkAction *action;
GtkAccelKey *accel_key;
gchar *orig_tooltip;
gchar *tooltip;
const gchar *help_id;
action = g_object_get_data (G_OBJECT (widget), "gimp-accel-action");
g_object_get (action, "tooltip", &orig_tooltip, NULL);
help_id = g_object_get_qdata (G_OBJECT (action), GIMP_HELP_ID);
accel_key = gtk_accel_group_find (accel_group,
gimp_widget_accel_find_func,
accel_closure);
if (accel_key &&
accel_key->accel_key &&
accel_key->accel_flags & GTK_ACCEL_VISIBLE)
{
gchar *accel = gtk_accelerator_get_label (accel_key->accel_key,
accel_key->accel_mods);
tooltip = g_strdup_printf ("%s <b>%s</b>", orig_tooltip, accel);
g_free (accel);
}
else
{
tooltip = g_strdup (orig_tooltip);
}
gimp_help_set_help_data (widget, tooltip, help_id);
g_free (tooltip);
g_free (orig_tooltip);
}
}
void
gimp_widget_set_accel_help (GtkWidget *widget,
GtkAction *action)
{
GClosure *accel_closure = NULL;
accel_closure = gtk_action_get_accel_closure (action);
if (accel_closure)
{
GtkAccelGroup *accel_group;
g_object_set_data (G_OBJECT (widget), "gimp-accel-closure",
accel_closure);
g_object_set_data (G_OBJECT (widget), "gimp-accel-action",
action);
accel_group = gtk_accel_group_from_accel_closure (accel_closure);
g_signal_connect_object (accel_group, "accel-changed",
G_CALLBACK (gimp_widget_accel_changed),
widget, 0);
gimp_widget_accel_changed (accel_group,
0, 0,
accel_closure,
widget);
}
else
{
gchar *tooltip;
gchar *help_id;
g_object_get (action, "tooltip", &tooltip, NULL);
help_id = g_object_get_qdata (G_OBJECT (action), GIMP_HELP_ID);
gimp_help_set_help_data (widget, tooltip, help_id);
g_free (tooltip);
}
}
const gchar *
gimp_get_message_stock_id (GimpMessageSeverity severity)
{
switch (severity)
{
case GIMP_MESSAGE_INFO:
return GIMP_STOCK_INFO;
case GIMP_MESSAGE_WARNING:
return GIMP_STOCK_WARNING;
case GIMP_MESSAGE_ERROR:
return GIMP_STOCK_ERROR;
}
g_return_val_if_reached (GIMP_STOCK_WARNING);
}
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