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Diffstat (limited to 'libgimpwidgets/gimppixmap.c')
| -rw-r--r-- | libgimpwidgets/gimppixmap.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/libgimpwidgets/gimppixmap.c b/libgimpwidgets/gimppixmap.c new file mode 100644 index 0000000..d841885 --- /dev/null +++ b/libgimpwidgets/gimppixmap.c @@ -0,0 +1,179 @@ +/* LIBGIMP - The GIMP Library + * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball + * + * gimppixmap.c + * Copyright (C) 2000 Michael Natterer <mitch@gimp.org> + * + * This library is free software: you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 3 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#undef GSEAL_ENABLE +#undef GTK_DISABLE_DEPRECATED +#undef GDK_DISABLE_DEPRECATED + +#include <stdio.h> + +#include <gtk/gtk.h> + +#include "gimpwidgetstypes.h" + +#undef GIMP_DISABLE_DEPRECATED +#include "gimppixmap.h" + + +/** + * SECTION: gimppixmap + * @title: GimpPixmap + * @short_description: Widget which creates a #GtkPixmap from XPM data. + * @see_also: gimp_pixmap_button_new(), #GtkPixmap + * + * Widget which creates a #GtkPixmap from XPM data. + * + * Use this widget instead of #GtkPixmap if you don't want to worry + * about the parent container's "realized" state. + * + * Note that the drawback of the easy interface is that the actual + * #GdkPixmap and it's mask have to be constructed every time you call + * gimp_pixmap_new() and cannot be cached in memory without doing bad + * hacks. + **/ + + +static void gimp_pixmap_realize (GtkWidget *widget); +static void gimp_pixmap_create_from_xpm_d (GimpPixmap *pixmap); + + +G_DEFINE_TYPE (GimpPixmap, gimp_pixmap, GTK_TYPE_IMAGE) + +#define parent_class gimp_pixmap_parent_class + + +static void +gimp_pixmap_class_init (GimpPixmapClass *klass) +{ + GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); + + widget_class->realize = gimp_pixmap_realize; +} + +static void +gimp_pixmap_init (GimpPixmap *pixmap) +{ + pixmap->xpm_data = NULL; +} + +/** + * gimp_pixmap_new: + * @xpm_data: A pointer to a XPM data structure as found in XPM files. + * + * Creates a new #GimpPixmap widget. + * + * Returns: A pointer to the new #GimpPixmap widget. + **/ +GtkWidget * +gimp_pixmap_new (gchar **xpm_data) +{ + GimpPixmap *pixmap = g_object_new (GIMP_TYPE_PIXMAP, NULL); + + gimp_pixmap_set (pixmap, xpm_data); + + return GTK_WIDGET (pixmap); +} + +/** + * gimp_pixmap_set: + * @pixmap: The pixmap widget you want to set the new xpm_data for. + * @xpm_data: A pointer to a XPM data structure as found in XPM files. + * + * Sets a new image for an existing #GimpPixmap widget. + **/ +void +gimp_pixmap_set (GimpPixmap *pixmap, + gchar **xpm_data) +{ + g_return_if_fail (GIMP_IS_PIXMAP (pixmap)); + + pixmap->xpm_data = xpm_data; + + GTK_WIDGET (pixmap)->requisition.width = 0; + GTK_WIDGET (pixmap)->requisition.height = 0; + + if (! gtk_widget_get_realized (GTK_WIDGET (pixmap))) + { + if (xpm_data) + { + gint width, height; + + if (sscanf (xpm_data[0], "%d %d", &width, &height) != 2) + { + g_warning ("%s: passed pointer is no XPM data", G_STRFUNC); + } + else + { + gint xpad, ypad; + + gtk_misc_get_padding (GTK_MISC (pixmap), &xpad, &ypad); + + GTK_WIDGET (pixmap)->requisition.width = width + xpad * 2; + GTK_WIDGET (pixmap)->requisition.height = height + ypad * 2; + } + } + } + else + { + gimp_pixmap_create_from_xpm_d (pixmap); + } +} + +static void +gimp_pixmap_realize (GtkWidget *widget) +{ + if (GTK_WIDGET_CLASS (parent_class)->realize) + GTK_WIDGET_CLASS (parent_class)->realize (widget); + + gimp_pixmap_create_from_xpm_d (GIMP_PIXMAP (widget)); +} + +static void +gimp_pixmap_create_from_xpm_d (GimpPixmap *pixmap) +{ + GtkStyle *style; + GdkPixmap *gdk_pixmap = NULL; + GdkBitmap *mask = NULL; + + if (pixmap->xpm_data) + { + GtkWidget *widget; + + widget = GTK_WIDGET (pixmap); + + style = gtk_widget_get_style (widget); + + gdk_pixmap = gdk_pixmap_create_from_xpm_d (gtk_widget_get_window (widget), + &mask, + &style->bg[GTK_STATE_NORMAL], + pixmap->xpm_data); + } + + gtk_image_set_from_pixmap (GTK_IMAGE (pixmap), gdk_pixmap, mask); + + if (gdk_pixmap) + g_object_unref (gdk_pixmap); + + if (mask) + g_object_unref (mask); +} |