libgimpwidgets: add gimpwidgetsutils.[ch]
Move some functions from libgimpwidgets/gimpwidgets.[ch] and from app/widgets/gimpwidgets-utils.[ch]. Newly add gimp_widget_get_color_profile() which is extracted from modules/display-filter-lcms.c.
This commit is contained in:
Michael Natterer
457
libgimpwidgets/gimpwidgetsutils.c
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457
libgimpwidgets/gimpwidgetsutils.c
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@ -0,0 +1,457 @@
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/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimpwidgets.c
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* Copyright (C) 2000 Michael Natterer <mitch@gimp.org>
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#ifdef G_OS_WIN32
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#include <windows.h>
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#endif
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#ifdef GDK_WINDOWING_QUARTZ
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#include <Carbon/Carbon.h>
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#include <ApplicationServices/ApplicationServices.h>
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#include <CoreServices/CoreServices.h>
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#endif
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libgimpcolor/gimpcolor.h"
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#include "gimpwidgetstypes.h"
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#include "gimp3migration.h"
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#include "gimpsizeentry.h"
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#include "gimpwidgetsutils.h"
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#include "libgimp/libgimp-intl.h"
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/**
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* SECTION: gimpwidgetsutils
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* @title: GimpWidgetsUtils
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* @short_description: A collection of helper functions.
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*
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* A collection of helper functions.
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**/
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static GtkWidget *
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find_mnemonic_widget (GtkWidget *widget,
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gint level)
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{
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gboolean can_focus;
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g_object_get (widget, "can-focus", &can_focus, NULL);
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if (GTK_WIDGET_GET_CLASS (widget)->activate_signal ||
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can_focus ||
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GTK_WIDGET_GET_CLASS (widget)->mnemonic_activate !=
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GTK_WIDGET_CLASS (g_type_class_peek (GTK_TYPE_WIDGET))->mnemonic_activate)
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{
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return widget;
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}
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if (GIMP_IS_SIZE_ENTRY (widget))
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{
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GimpSizeEntry *entry = GIMP_SIZE_ENTRY (widget);
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return gimp_size_entry_get_help_widget (entry,
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entry->number_of_fields - 1);
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}
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else if (GTK_IS_CONTAINER (widget))
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{
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GtkWidget *mnemonic_widget = NULL;
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GList *children;
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GList *list;
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children = gtk_container_get_children (GTK_CONTAINER (widget));
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for (list = children; list; list = g_list_next (list))
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{
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mnemonic_widget = find_mnemonic_widget (list->data, level + 1);
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if (mnemonic_widget)
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break;
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}
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g_list_free (children);
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return mnemonic_widget;
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}
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return NULL;
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}
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/**
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* gimp_table_attach_aligned:
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* @table: The #GtkTable the widgets will be attached to.
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* @column: The column to start with.
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* @row: The row to attach the widgets.
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* @label_text: The text for the #GtkLabel which will be attached left of
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* the widget.
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* @xalign: The horizontal alignment of the #GtkLabel.
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* @yalign: The vertival alignment of the #GtkLabel.
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* @widget: The #GtkWidget to attach right of the label.
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* @colspan: The number of columns the widget will use.
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* @left_align: %TRUE if the widget should be left-aligned.
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*
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* Note that the @label_text can be %NULL and that the widget will be
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* attached starting at (@column + 1) in this case, too.
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*
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* Returns: The created #GtkLabel.
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**/
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GtkWidget *
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gimp_table_attach_aligned (GtkTable *table,
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gint column,
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gint row,
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const gchar *label_text,
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gfloat xalign,
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gfloat yalign,
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GtkWidget *widget,
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gint colspan,
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gboolean left_align)
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{
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GtkWidget *label = NULL;
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if (label_text)
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{
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GtkWidget *mnemonic_widget;
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label = gtk_label_new_with_mnemonic (label_text);
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gtk_misc_set_alignment (GTK_MISC (label), xalign, yalign);
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gtk_label_set_justify (GTK_LABEL (label), GTK_JUSTIFY_LEFT);
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gtk_table_attach (table, label,
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column, column + 1,
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row, row + 1,
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GTK_FILL, GTK_FILL, 0, 0);
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gtk_widget_show (label);
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mnemonic_widget = find_mnemonic_widget (widget, 0);
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if (mnemonic_widget)
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gtk_label_set_mnemonic_widget (GTK_LABEL (label), mnemonic_widget);
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}
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if (left_align)
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{
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GtkWidget *hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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gtk_box_pack_start (GTK_BOX (hbox), widget, FALSE, FALSE, 0);
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gtk_widget_show (widget);
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widget = hbox;
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}
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gtk_table_attach (table, widget,
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column + 1, column + 1 + colspan,
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row, row + 1,
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GTK_EXPAND | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
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gtk_widget_show (widget);
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return label;
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}
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/**
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* gimp_label_set_attributes:
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* @label: a #GtkLabel
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* @...: a list of PangoAttrType and value pairs terminated by -1.
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*
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* Sets Pango attributes on a #GtkLabel in a more convenient way than
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* gtk_label_set_attributes().
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*
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* This function is useful if you want to change the font attributes
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* of a #GtkLabel. This is an alternative to using PangoMarkup which
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* is slow to parse and akward to handle in an i18n-friendly way.
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*
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* The attributes are set on the complete label, from start to end. If
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* you need to set attributes on part of the label, you will have to
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* use the PangoAttributes API directly.
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*
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* Since: GIMP 2.2
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**/
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void
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gimp_label_set_attributes (GtkLabel *label,
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...)
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{
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PangoAttribute *attr = NULL;
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PangoAttrList *attrs;
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va_list args;
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g_return_if_fail (GTK_IS_LABEL (label));
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attrs = pango_attr_list_new ();
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va_start (args, label);
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do
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{
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PangoAttrType attr_type = va_arg (args, PangoAttrType);
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if (attr_type == -1)
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attr_type = PANGO_ATTR_INVALID;
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switch (attr_type)
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{
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case PANGO_ATTR_LANGUAGE:
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attr = pango_attr_language_new (va_arg (args, PangoLanguage *));
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break;
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case PANGO_ATTR_FAMILY:
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attr = pango_attr_family_new (va_arg (args, const gchar *));
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break;
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case PANGO_ATTR_STYLE:
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attr = pango_attr_style_new (va_arg (args, PangoStyle));
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break;
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case PANGO_ATTR_WEIGHT:
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attr = pango_attr_weight_new (va_arg (args, PangoWeight));
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break;
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case PANGO_ATTR_VARIANT:
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attr = pango_attr_variant_new (va_arg (args, PangoVariant));
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break;
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case PANGO_ATTR_STRETCH:
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attr = pango_attr_stretch_new (va_arg (args, PangoStretch));
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break;
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case PANGO_ATTR_SIZE:
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attr = pango_attr_size_new (va_arg (args, gint));
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break;
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case PANGO_ATTR_FONT_DESC:
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attr = pango_attr_font_desc_new (va_arg (args,
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const PangoFontDescription *));
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break;
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case PANGO_ATTR_FOREGROUND:
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{
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const PangoColor *color = va_arg (args, const PangoColor *);
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attr = pango_attr_foreground_new (color->red,
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color->green,
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color->blue);
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}
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break;
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case PANGO_ATTR_BACKGROUND:
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{
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const PangoColor *color = va_arg (args, const PangoColor *);
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attr = pango_attr_background_new (color->red,
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color->green,
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color->blue);
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}
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break;
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case PANGO_ATTR_UNDERLINE:
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attr = pango_attr_underline_new (va_arg (args, PangoUnderline));
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break;
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case PANGO_ATTR_STRIKETHROUGH:
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attr = pango_attr_strikethrough_new (va_arg (args, gboolean));
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break;
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case PANGO_ATTR_RISE:
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attr = pango_attr_rise_new (va_arg (args, gint));
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break;
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case PANGO_ATTR_SCALE:
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attr = pango_attr_scale_new (va_arg (args, gdouble));
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break;
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default:
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g_warning ("%s: invalid PangoAttribute type %d",
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G_STRFUNC, attr_type);
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case PANGO_ATTR_INVALID:
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attr = NULL;
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break;
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}
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if (attr)
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{
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attr->start_index = 0;
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attr->end_index = -1;
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pango_attr_list_insert (attrs, attr);
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}
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}
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while (attr);
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va_end (args);
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gtk_label_set_attributes (label, attrs);
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pango_attr_list_unref (attrs);
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}
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gint
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gimp_widget_get_monitor (GtkWidget *widget)
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{
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GdkWindow *window;
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GdkScreen *screen;
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GtkAllocation allocation;
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gint x, y;
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g_return_val_if_fail (GTK_IS_WIDGET (widget), 0);
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window = gtk_widget_get_window (widget);
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if (! window)
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return gimp_get_monitor_at_pointer (&screen);
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screen = gtk_widget_get_screen (widget);
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gdk_window_get_origin (window, &x, &y);
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gtk_widget_get_allocation (widget, &allocation);
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if (! gtk_widget_get_has_window (widget))
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{
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x += allocation.x;
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y += allocation.y;
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}
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x += allocation.width / 2;
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y += allocation.height / 2;
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return gdk_screen_get_monitor_at_point (screen, x, y);
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}
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gint
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gimp_get_monitor_at_pointer (GdkScreen **screen)
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{
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gint x, y;
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g_return_val_if_fail (screen != NULL, 0);
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gdk_display_get_pointer (gdk_display_get_default (),
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screen, &x, &y, NULL);
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return gdk_screen_get_monitor_at_point (*screen, x, y);
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}
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GimpColorProfile
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gimp_widget_get_color_profile (GtkWidget *widget)
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{
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GimpColorProfile profile = NULL;
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GdkScreen *screen;
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gint monitor;
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g_return_val_if_fail (widget == NULL || GTK_IS_WIDGET (widget), NULL);
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if (widget)
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{
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screen = gtk_widget_get_screen (widget);
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monitor = gimp_widget_get_monitor (widget);
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}
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else
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{
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screen = gdk_screen_get_default ();
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monitor = 0;
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}
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#if defined GDK_WINDOWING_X11
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{
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GdkAtom type = GDK_NONE;
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gint format = 0;
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gint nitems = 0;
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gchar *atom_name;
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guchar *data = NULL;
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if (monitor > 0)
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atom_name = g_strdup_printf ("_ICC_PROFILE_%d", monitor);
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else
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atom_name = g_strdup ("_ICC_PROFILE");
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if (gdk_property_get (gdk_screen_get_root_window (screen),
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gdk_atom_intern (atom_name, FALSE),
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GDK_NONE,
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0, 64 * 1024 * 1024, FALSE,
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&type, &format, &nitems, &data) && nitems > 0)
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{
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profile = gimp_lcms_profile_open_from_data (data, nitems, NULL);
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g_free (data);
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}
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g_free (atom_name);
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}
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#elif defined GDK_WINDOWING_QUARTZ
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{
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CMProfileRef prof = NULL;
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CMGetProfileByAVID (monitor, &prof);
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if (prof)
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{
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CFDataRef data;
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data = CMProfileCopyICCData (NULL, prof);
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CMCloseProfile (prof);
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if (data)
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{
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UInt8 *buffer = g_malloc (CFDataGetLength (data));
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/* We cannot use CFDataGetBytesPtr(), because that returns
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* a const pointer where cmsOpenProfileFromMem wants a
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* non-const pointer.
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*/
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CFDataGetBytes (data, CFRangeMake (0, CFDataGetLength (data)),
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buffer);
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profile = gimp_lcms_profile_open_from_data (data,
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CFDataGetLength (data),
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NULL);
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g_free (buffer);
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CFRelease (data);
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}
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}
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}
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#elif defined G_OS_WIN32
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{
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HDC hdc = GetDC (NULL);
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if (hdc)
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{
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gchar *path;
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gint32 len = 0;
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GetICMProfile (hdc, &len, NULL);
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path = g_new (gchar, len);
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if (GetICMProfile (hdc, &len, path))
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{
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GFile *file = g_file_new_for_path (path);
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profile = gimp_lcms_profile_open_from_file (file, NULL);
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g_object_unref (file);
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}
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g_free (path);
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ReleaseDC (NULL, hdc);
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}
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}
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#endif
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return profile;
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}
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Block a user