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added "drawable" as construct-only property so that the widget can be 

2006-02-26  Sven Neumann  <sven@gimp.org>

	* libgimp/gimpaspectpreview.c: added "drawable" as construct-only
	property so that the widget can be constructed using g_object_new().
This commit is contained in:
Sven Neumann 2006-02-26 00:37:50 +00:00 committed by Sven Neumann
parent a154f2c61e
commit 12343c88e1
2 changed files with 138 additions and 31 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
2006-02-26 Sven Neumann <sven@gimp.org>
* libgimp/gimpaspectpreview.c: added "drawable" as construct-only
property so that the widget can be constructed using g_object_new().
2006-02-26 Sven Neumann <sven@gimp.org>
* libgimp/gimpdrawablepreview.c: added "drawable" as construct-only

164
libgimp/gimpaspectpreview.c
View File

@ -34,12 +34,34 @@
#include "gimpaspectpreview.h"
static void gimp_aspect_preview_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static void gimp_aspect_preview_draw (GimpPreview *preview);
static void gimp_aspect_preview_draw_buffer (GimpPreview *preview,
const guchar *buffer,
gint rowstride);
enum
{
PROP_0,
PROP_DRAWABLE
};
static GObject * gimp_aspect_preview_constructor (GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_aspect_preview_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_aspect_preview_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_aspect_preview_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static void gimp_aspect_preview_draw (GimpPreview *preview);
static void gimp_aspect_preview_draw_buffer (GimpPreview *preview,
const guchar *buffer,
gint rowstride);
static void gimp_aspect_preview_set_drawable (GimpAspectPreview *preview,
GimpDrawable *drawable);
G_DEFINE_TYPE (GimpAspectPreview, gimp_aspect_preview, GIMP_TYPE_PREVIEW);
@ -50,13 +72,28 @@ G_DEFINE_TYPE (GimpAspectPreview, gimp_aspect_preview, GIMP_TYPE_PREVIEW);
static void
gimp_aspect_preview_class_init (GimpAspectPreviewClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GimpPreviewClass *preview_class = GIMP_PREVIEW_CLASS (klass);
object_class->constructor = gimp_aspect_preview_constructor;
object_class->get_property = gimp_aspect_preview_get_property;
object_class->set_property = gimp_aspect_preview_set_property;
widget_class->style_set = gimp_aspect_preview_style_set;
preview_class->draw = gimp_aspect_preview_draw;
preview_class->draw_buffer = gimp_aspect_preview_draw_buffer;
/**
* GimpAspectPreview:drawable:
*
* Since: GIMP 2.4
*/
g_object_class_install_property (object_class, PROP_DRAWABLE,
g_param_spec_pointer ("drawable", NULL, NULL,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
static void
@ -68,6 +105,59 @@ gimp_aspect_preview_init (GimpAspectPreview *preview)
NULL);
}
static GObject *
gimp_aspect_preview_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
return object;
}
static void
gimp_aspect_preview_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpAspectPreview *preview = GIMP_ASPECT_PREVIEW (object);
switch (property_id)
{
case PROP_DRAWABLE:
g_value_set_pointer (value, preview->drawable);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_aspect_preview_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpAspectPreview *preview = GIMP_ASPECT_PREVIEW (object);
switch (property_id)
{
case PROP_DRAWABLE:
gimp_aspect_preview_set_drawable (preview,
g_value_get_pointer (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_aspect_preview_style_set (GtkWidget *widget,
GtkStyle *prev_style)
@ -163,6 +253,37 @@ gimp_aspect_preview_draw_buffer (GimpPreview *preview,
}
}
static void
gimp_aspect_preview_set_drawable (GimpAspectPreview *preview,
GimpDrawable *drawable)
{
gint width, height;
gint max_width, max_height;
preview->drawable = drawable;
width = gimp_drawable_width (drawable->drawable_id);
height = gimp_drawable_height (drawable->drawable_id);
if (width > height)
{
max_width = MIN (width, 512);
max_height = (height * max_width) / width;
}
else
{
max_height = MIN (height, 512);
max_width = (width * max_height) / height;
}
gimp_preview_set_bounds (GIMP_PREVIEW (preview),
0, 0, max_width, max_height);
if (height > 0)
g_object_set (GIMP_PREVIEW (preview)->frame,
"ratio", (gdouble) width / (gdouble) height,
NULL);
}
static void
gimp_aspect_preview_notify_update (GimpPreview *preview,
GParamSpec *pspec,
@ -186,32 +307,13 @@ GtkWidget *
gimp_aspect_preview_new (GimpDrawable *drawable,
gboolean *toggle)
{
GimpAspectPreview *preview;
gint width, height;
gint max_width, max_height;
GtkWidget *preview;
preview = g_object_new (GIMP_TYPE_ASPECT_PREVIEW, NULL);
g_return_val_if_fail (drawable != NULL, NULL);
preview->drawable = drawable;
width = gimp_drawable_width (drawable->drawable_id);
height = gimp_drawable_height (drawable->drawable_id);
if (width > height)
{
max_width = MIN (width, 512);
max_height = (height * max_width) / width;
}
else
{
max_height = MIN (height, 512);
max_width = (width * max_height) / height;
}
gimp_preview_set_bounds (GIMP_PREVIEW (preview),
0, 0, max_width, max_height);
g_object_set (GIMP_PREVIEW (preview)->frame,
"ratio", (gdouble) width / (gdouble) height,
NULL);
preview = g_object_new (GIMP_TYPE_ASPECT_PREVIEW,
"drawable", drawable,
NULL);
if (toggle)
{
@ -223,5 +325,5 @@ gimp_aspect_preview_new (GimpDrawable *drawable,
}
return GTK_WIDGET (preview);
return preview;
}