+++ /dev/null
-/* GTK - The GIMP Toolkit
- * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
- *
- * 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 2 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, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/*
- * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
- * file for a list of people on the GTK+ Team. See the ChangeLog
- * files for a list of changes. These files are distributed with
- * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
- */
-
-#include "config.h"
-
-#include <math.h>
-#include <string.h>
-#include <sys/types.h>
-#ifdef HAVE_SYS_PARAM_H
-#include <sys/param.h>
-#endif
-
-#undef GTK_DISABLE_DEPRECATED
-
-#include "gtkpreview.h"
-#include "gtkprivate.h"
-#include "gtkintl.h"
-#include "gtkalias.h"
-
-
-#define PREVIEW_CLASS(w) GTK_PREVIEW_CLASS (GTK_OBJECT (w)->klass)
-
-enum {
- PROP_0,
- PROP_EXPAND
-};
-
-
-static void gtk_preview_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec);
-static void gtk_preview_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec);
-static void gtk_preview_finalize (GObject *object);
-static void gtk_preview_realize (GtkWidget *widget);
-static void gtk_preview_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation);
-static gint gtk_preview_expose (GtkWidget *widget,
- GdkEventExpose *event);
-static void gtk_preview_make_buffer (GtkPreview *preview);
-static void gtk_fill_lookup_array (guchar *array);
-
-static GtkPreviewClass *preview_class = NULL;
-static gint install_cmap = FALSE;
-
-
-G_DEFINE_TYPE (GtkPreview, gtk_preview, GTK_TYPE_WIDGET)
-
-static void
-gtk_preview_class_init (GtkPreviewClass *klass)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- GtkWidgetClass *widget_class;
-
- widget_class = (GtkWidgetClass*) klass;
-
- preview_class = klass;
-
- gobject_class->finalize = gtk_preview_finalize;
-
- gobject_class->set_property = gtk_preview_set_property;
- gobject_class->get_property = gtk_preview_get_property;
-
- widget_class->realize = gtk_preview_realize;
- widget_class->size_allocate = gtk_preview_size_allocate;
- widget_class->expose_event = gtk_preview_expose;
-
- klass->info.lookup = NULL;
-
- klass->info.gamma = 1.0;
-
- g_object_class_install_property (gobject_class,
- PROP_EXPAND,
- g_param_spec_boolean ("expand",
- P_("Expand"),
- P_("Whether the preview widget should take up the entire space it is allocated"),
- FALSE,
- GTK_PARAM_READWRITE));
-}
-
-static void
-gtk_preview_set_property (GObject *object,
- guint prop_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- GtkPreview *preview = GTK_PREVIEW (object);
-
- switch (prop_id)
- {
- case PROP_EXPAND:
- gtk_preview_set_expand (preview, g_value_get_boolean (value));
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-static void
-gtk_preview_get_property (GObject *object,
- guint prop_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GtkPreview *preview;
-
- preview = GTK_PREVIEW (object);
-
- switch (prop_id)
- {
- case PROP_EXPAND:
- g_value_set_boolean (value, preview->expand);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
- }
-}
-
-void
-gtk_preview_reset (void)
-{
- /* unimplemented */
-}
-
-static void
-gtk_preview_init (GtkPreview *preview)
-{
- preview->buffer = NULL;
- preview->buffer_width = 0;
- preview->buffer_height = 0;
- preview->expand = FALSE;
-}
-
-void
-gtk_preview_uninit (void)
-{
- /* unimplemented */
-}
-
-GtkWidget*
-gtk_preview_new (GtkPreviewType type)
-{
- GtkPreview *preview;
-
- preview = gtk_type_new (gtk_preview_get_type ());
- preview->type = type;
-
- if (type == GTK_PREVIEW_COLOR)
- preview->bpp = 3;
- else
- preview->bpp = 1;
-
- preview->dither = GDK_RGB_DITHER_NORMAL;
-
- return GTK_WIDGET (preview);
-}
-
-void
-gtk_preview_size (GtkPreview *preview,
- gint width,
- gint height)
-{
- g_return_if_fail (GTK_IS_PREVIEW (preview));
-
- if ((width != GTK_WIDGET (preview)->requisition.width) ||
- (height != GTK_WIDGET (preview)->requisition.height))
- {
- GTK_WIDGET (preview)->requisition.width = width;
- GTK_WIDGET (preview)->requisition.height = height;
-
- g_free (preview->buffer);
- preview->buffer = NULL;
- }
-}
-
-void
-gtk_preview_put (GtkPreview *preview,
- GdkWindow *window,
- GdkGC *gc,
- gint srcx,
- gint srcy,
- gint destx,
- gint desty,
- gint width,
- gint height)
-{
- GdkRectangle r1, r2, r3;
- guchar *src;
- guint bpp;
- guint rowstride;
-
- g_return_if_fail (GTK_IS_PREVIEW (preview));
- g_return_if_fail (window != NULL);
-
- if (!preview->buffer)
- return;
-
- r1.x = 0;
- r1.y = 0;
- r1.width = preview->buffer_width;
- r1.height = preview->buffer_height;
-
- r2.x = srcx;
- r2.y = srcy;
- r2.width = width;
- r2.height = height;
-
- if (!gdk_rectangle_intersect (&r1, &r2, &r3))
- return;
-
- bpp = preview->bpp;
- rowstride = preview->rowstride;
-
- src = preview->buffer + r3.y * rowstride + r3.x * bpp;
-
- if (preview->type == GTK_PREVIEW_COLOR)
- gdk_draw_rgb_image (window,
- gc,
- destx + (r3.x - srcx),
- desty + (r3.y - srcy),
- r3.width,
- r3.height,
- preview->dither,
- src,
- rowstride);
- else
- gdk_draw_gray_image (window,
- gc,
- destx + (r3.x - srcx),
- desty + (r3.y - srcy),
- r3.width,
- r3.height,
- preview->dither,
- src,
- rowstride);
-
-}
-
-void
-gtk_preview_draw_row (GtkPreview *preview,
- guchar *data,
- gint x,
- gint y,
- gint w)
-{
- guint bpp;
- guint rowstride;
-
- g_return_if_fail (GTK_IS_PREVIEW (preview));
- g_return_if_fail (data != NULL);
-
- bpp = (preview->type == GTK_PREVIEW_COLOR ? 3 : 1);
- rowstride = (preview->buffer_width * bpp + 3) & -4;
-
- if ((w <= 0) || (y < 0))
- return;
-
- g_return_if_fail (data != NULL);
-
- gtk_preview_make_buffer (preview);
-
- if (x + w > preview->buffer_width)
- return;
-
- if (y + 1 > preview->buffer_height)
- return;
-
- if (preview_class->info.gamma == 1.0)
- memcpy (preview->buffer + y * rowstride + x * bpp, data, w * bpp);
- else
- {
- guint i, size;
- guchar *src, *dst;
- guchar *lookup;
-
- if (preview_class->info.lookup != NULL)
- lookup = preview_class->info.lookup;
- else
- {
- preview_class->info.lookup = g_new (guchar, 256);
- gtk_fill_lookup_array (preview_class->info.lookup);
- lookup = preview_class->info.lookup;
- }
- size = w * bpp;
- src = data;
- dst = preview->buffer + y * rowstride + x * bpp;
- for (i = 0; i < size; i++)
- *dst++ = lookup[*src++];
- }
-}
-
-void
-gtk_preview_set_expand (GtkPreview *preview,
- gboolean expand)
-{
- g_return_if_fail (GTK_IS_PREVIEW (preview));
-
- expand = expand != FALSE;
-
- if (preview->expand != expand)
- {
- preview->expand = expand;
- gtk_widget_queue_resize (GTK_WIDGET (preview));
-
- g_object_notify (G_OBJECT (preview), "expand");
- }
-}
-
-void
-gtk_preview_set_gamma (double _gamma)
-{
- if (!preview_class)
- preview_class = gtk_type_class (gtk_preview_get_type ());
-
- if (preview_class->info.gamma != _gamma)
- {
- preview_class->info.gamma = _gamma;
- if (preview_class->info.lookup != NULL)
- {
- g_free (preview_class->info.lookup);
- preview_class->info.lookup = NULL;
- }
- }
-}
-
-void
-gtk_preview_set_color_cube (guint nred_shades,
- guint ngreen_shades,
- guint nblue_shades,
- guint ngray_shades)
-{
- /* unimplemented */
-}
-
-void
-gtk_preview_set_install_cmap (gint _install_cmap)
-{
- /* effectively unimplemented */
- install_cmap = _install_cmap;
-}
-
-void
-gtk_preview_set_reserved (gint nreserved)
-{
-
- /* unimplemented */
-}
-
-void
-gtk_preview_set_dither (GtkPreview *preview,
- GdkRgbDither dither)
-{
- preview->dither = dither;
-}
-
-GdkVisual*
-gtk_preview_get_visual (void)
-{
- return gdk_screen_get_rgb_visual (gdk_screen_get_default ());
-}
-
-GdkColormap*
-gtk_preview_get_cmap (void)
-{
- return gdk_screen_get_rgb_colormap (gdk_screen_get_default ());
-}
-
-GtkPreviewInfo*
-gtk_preview_get_info (void)
-{
- if (!preview_class)
- preview_class = gtk_type_class (gtk_preview_get_type ());
-
- return &preview_class->info;
-}
-
-
-static void
-gtk_preview_finalize (GObject *object)
-{
- GtkPreview *preview = GTK_PREVIEW (object);
-
- g_free (preview->buffer);
-
- G_OBJECT_CLASS (gtk_preview_parent_class)->finalize (object);
-}
-
-static void
-gtk_preview_realize (GtkWidget *widget)
-{
- GtkPreview *preview = GTK_PREVIEW (widget);
- GdkWindowAttr attributes;
- gint attributes_mask;
-
- gtk_widget_set_realized (widget, TRUE);
-
- attributes.window_type = GDK_WINDOW_CHILD;
-
- if (preview->expand)
- {
- attributes.width = widget->allocation.width;
- attributes.height = widget->allocation.height;
- }
- else
- {
- attributes.width = MIN (widget->requisition.width, widget->allocation.width);
- attributes.height = MIN (widget->requisition.height, widget->allocation.height);
- }
-
- attributes.x = widget->allocation.x + (widget->allocation.width - attributes.width) / 2;
- attributes.y = widget->allocation.y + (widget->allocation.height - attributes.height) / 2;;
-
- attributes.wclass = GDK_INPUT_OUTPUT;
- attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
- attributes_mask = GDK_WA_X | GDK_WA_Y;
-
- widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, attributes_mask);
- gdk_window_set_user_data (widget->window, widget);
-
- widget->style = gtk_style_attach (widget->style, widget->window);
- gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
-}
-
-static void
-gtk_preview_size_allocate (GtkWidget *widget,
- GtkAllocation *allocation)
-{
- GtkPreview *preview = GTK_PREVIEW (widget);
- gint width, height;
-
- widget->allocation = *allocation;
-
- if (gtk_widget_get_realized (widget))
- {
- if (preview->expand)
- {
- width = widget->allocation.width;
- height = widget->allocation.height;
- }
- else
- {
- width = MIN (widget->allocation.width, widget->requisition.width);
- height = MIN (widget->allocation.height, widget->requisition.height);
- }
-
- gdk_window_move_resize (widget->window,
- widget->allocation.x + (widget->allocation.width - width) / 2,
- widget->allocation.y + (widget->allocation.height - height) / 2,
- width, height);
- }
-}
-
-static gint
-gtk_preview_expose (GtkWidget *widget,
- GdkEventExpose *event)
-{
- GtkPreview *preview;
- gint width, height;
-
- if (GTK_WIDGET_DRAWABLE (widget))
- {
- preview = GTK_PREVIEW (widget);
-
- gdk_drawable_get_size (widget->window, &width, &height);
-
- gtk_preview_put (GTK_PREVIEW (widget),
- widget->window, widget->style->black_gc,
- event->area.x - (width - preview->buffer_width)/2,
- event->area.y - (height - preview->buffer_height)/2,
- event->area.x, event->area.y,
- event->area.width, event->area.height);
- }
-
- return FALSE;
-}
-
-static void
-gtk_preview_make_buffer (GtkPreview *preview)
-{
- GtkWidget *widget;
- gint width;
- gint height;
-
- g_return_if_fail (GTK_IS_PREVIEW (preview));
-
- widget = GTK_WIDGET (preview);
-
- if (preview->expand &&
- (widget->allocation.width != 0) &&
- (widget->allocation.height != 0))
- {
- width = widget->allocation.width;
- height = widget->allocation.height;
- }
- else
- {
- width = widget->requisition.width;
- height = widget->requisition.height;
- }
-
- if (!preview->buffer ||
- (preview->buffer_width != width) ||
- (preview->buffer_height != height))
- {
- g_free (preview->buffer);
-
- preview->buffer_width = width;
- preview->buffer_height = height;
-
- preview->rowstride = (preview->buffer_width * preview->bpp + 3) & -4;
- preview->buffer = g_new0 (guchar,
- preview->buffer_height *
- preview->rowstride);
- }
-}
-
-/* This is used for implementing gamma. */
-static void
-gtk_fill_lookup_array (guchar *array)
-{
- double one_over_gamma;
- double ind;
- int val;
- int i;
-
- one_over_gamma = 1.0 / preview_class->info.gamma;
-
- for (i = 0; i < 256; i++)
- {
- ind = (double) i / 255.0;
- val = (int) (255 * pow (ind, one_over_gamma));
- array[i] = val;
- }
-}
-
-#define __GTK_PREVIEW_C__
-#include "gtkaliasdef.c"
+++ /dev/null
-/* GTK - The GIMP Toolkit
- * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
- *
- * 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 2 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, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/*
- * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
- * file for a list of people on the GTK+ Team. See the ChangeLog
- * files for a list of changes. These files are distributed with
- * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
- */
-
-#ifndef GTK_DISABLE_DEPRECATED
-
-#ifndef __GTK_PREVIEW_H__
-#define __GTK_PREVIEW_H__
-
-#include <gtk/gtk.h>
-
-
-G_BEGIN_DECLS
-
-#define GTK_TYPE_PREVIEW (gtk_preview_get_type ())
-#define GTK_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_PREVIEW, GtkPreview))
-#define GTK_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_PREVIEW, GtkPreviewClass))
-#define GTK_IS_PREVIEW(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_PREVIEW))
-#define GTK_IS_PREVIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_PREVIEW))
-#define GTK_PREVIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_PREVIEW, GtkPreviewClass))
-
-
-typedef struct _GtkPreview GtkPreview;
-typedef struct _GtkPreviewInfo GtkPreviewInfo;
-typedef union _GtkDitherInfo GtkDitherInfo;
-typedef struct _GtkPreviewClass GtkPreviewClass;
-
-struct _GtkPreview
-{
- GtkWidget widget;
-
- guchar *buffer;
- guint16 buffer_width;
- guint16 buffer_height;
-
- guint16 bpp;
- guint16 rowstride;
-
- GdkRgbDither dither;
-
- guint type : 1;
- guint expand : 1;
-};
-
-struct _GtkPreviewInfo
-{
- guchar *lookup;
-
- gdouble gamma;
-};
-
-union _GtkDitherInfo
-{
- gushort s[2];
- guchar c[4];
-};
-
-struct _GtkPreviewClass
-{
- GtkWidgetClass parent_class;
-
- GtkPreviewInfo info;
-
-};
-
-
-GType gtk_preview_get_type (void) G_GNUC_CONST;
-void gtk_preview_uninit (void);
-GtkWidget* gtk_preview_new (GtkPreviewType type);
-void gtk_preview_size (GtkPreview *preview,
- gint width,
- gint height);
-void gtk_preview_put (GtkPreview *preview,
- GdkWindow *window,
- GdkGC *gc,
- gint srcx,
- gint srcy,
- gint destx,
- gint desty,
- gint width,
- gint height);
-void gtk_preview_draw_row (GtkPreview *preview,
- guchar *data,
- gint x,
- gint y,
- gint w);
-void gtk_preview_set_expand (GtkPreview *preview,
- gboolean expand);
-
-void gtk_preview_set_gamma (double gamma_);
-void gtk_preview_set_color_cube (guint nred_shades,
- guint ngreen_shades,
- guint nblue_shades,
- guint ngray_shades);
-void gtk_preview_set_install_cmap (gint install_cmap);
-void gtk_preview_set_reserved (gint nreserved);
-void gtk_preview_set_dither (GtkPreview *preview,
- GdkRgbDither dither);
-GdkVisual* gtk_preview_get_visual (void);
-GdkColormap* gtk_preview_get_cmap (void);
-GtkPreviewInfo* gtk_preview_get_info (void);
-
-/* This function reinitializes the preview colormap and visual from
- * the current gamma/color_cube/install_cmap settings. It must only
- * be called if there are no previews or users's of the preview
- * colormap in existence.
- */
-void gtk_preview_reset (void);
-
-
-G_END_DECLS
-
-#endif /* __GTK_PREVIEW_H__ */
-
-#endif /* GTK_DISABLE_DEPRECATED */
projects / ~andy / gtk / commitdiff