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Merge pull request #1512 from Exocoder:pre-gtk3

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This commit is contained in:
Roman Donchenko 2013-10-01 12:09:11 +04:00 committed by OpenCV Buildbot
commit e0f5a2e532
1 changed files with 47 additions and 50 deletions
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97
modules/highgui/src/window_gtk.cpp
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@ -47,6 +47,7 @@
#include "gtk/gtk.h"
#include "gdk/gdkkeysyms.h"
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <stdio.h>
#ifdef HAVE_OPENGL
@ -88,14 +89,14 @@ GtkWidget* cvImageWidgetNew (int flags);
void cvImageWidgetSetImage(CvImageWidget * widget, const CvArr *arr);
// standard GTK object macros
#define CV_IMAGE_WIDGET(obj) GTK_CHECK_CAST (obj, cvImageWidget_get_type (), CvImageWidget)
#define CV_IMAGE_WIDGET(obj) G_TYPE_CHECK_INSTANCE_CAST (obj, cvImageWidget_get_type (), CvImageWidget)
#define CV_IMAGE_WIDGET_CLASS(klass) GTK_CHECK_CLASS_CAST (klass, cvImageWidget_get_type (), CvImageWidgetClass)
#define CV_IS_IMAGE_WIDGET(obj) GTK_CHECK_TYPE (obj, cvImageWidget_get_type ())
#define CV_IS_IMAGE_WIDGET(obj) G_TYPE_CHECK_INSTANCE_TYPE (obj, cvImageWidget_get_type ())
/////////////////////////////////////////////////////////////////////////////
// Private API ////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////
GtkType cvImageWidget_get_type (void);
GType cvImageWidget_get_type (void);
static GtkWidgetClass * parent_class = NULL;
@ -135,7 +136,7 @@ cvImageWidgetNew (int flags)
{
CvImageWidget *image_widget;
image_widget = CV_IMAGE_WIDGET( gtk_type_new (cvImageWidget_get_type ()) );
image_widget = CV_IMAGE_WIDGET( gtk_widget_new (cvImageWidget_get_type (), NULL) );
image_widget->original_image = 0;
image_widget->scaled_image = 0;
image_widget->flags = flags | CV_WINDOW_NO_IMAGE;
@ -153,7 +154,7 @@ cvImageWidget_realize (GtkWidget *widget)
g_return_if_fail (widget != NULL);
g_return_if_fail (CV_IS_IMAGE_WIDGET (widget));
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
gtk_widget_set_realized(widget, TRUE);
attributes.x = widget->allocation.x;
attributes.y = widget->allocation.y;
@ -270,7 +271,7 @@ cvImageWidget_size_allocate (GtkWidget *widget,
cvResize( image_widget->original_image, image_widget->scaled_image, CV_INTER_AREA );
}
if (GTK_WIDGET_REALIZED (widget))
if (gtk_widget_get_realized (widget))
{
image_widget = CV_IMAGE_WIDGET (widget);
@ -321,7 +322,7 @@ static void cvImageWidget_class_init (CvImageWidgetClass * klass)
object_class = (GtkObjectClass*) klass;
widget_class = (GtkWidgetClass*) klass;
parent_class = GTK_WIDGET_CLASS( gtk_type_class (gtk_widget_get_type ()) );
parent_class = GTK_WIDGET_CLASS( g_type_class_peek (gtk_widget_get_type ()) );
object_class->destroy = cvImageWidget_destroy;
@ -341,24 +342,18 @@ cvImageWidget_init (CvImageWidget *image_widget)
image_widget->flags=0;
}
GtkType cvImageWidget_get_type (void){
static GtkType image_type = 0;
GType cvImageWidget_get_type (void){
static GType image_type = 0;
if (!image_type)
{
static const GtkTypeInfo image_info =
{
(gchar*)"CvImageWidget",
sizeof (CvImageWidget),
sizeof (CvImageWidgetClass),
(GtkClassInitFunc) cvImageWidget_class_init,
(GtkObjectInitFunc) cvImageWidget_init,
/* reserved_1 */ NULL,
/* reserved_1 */ NULL,
(GtkClassInitFunc) NULL
};
image_type = gtk_type_unique (GTK_TYPE_WIDGET, &image_info);
image_type = g_type_register_static_simple( GTK_TYPE_WIDGET,
(gchar*) "CvImageWidget",
sizeof(CvImageWidgetClass),
(GClassInitFunc) cvImageWidget_class_init,
sizeof(CvImageWidget),
(GInstanceInitFunc) cvImageWidget_init,
(GTypeFlags)NULL);
}
return image_type;
@ -758,7 +753,9 @@ static gboolean cvImageWidget_expose(GtkWidget* widget, GdkEventExpose* event, g
(void)data;
#endif
CvImageWidget *image_widget;
CvImageWidget *image_widget = NULL;
cairo_t *cr = NULL;
GdkPixbuf *pixbuf = NULL;
g_return_val_if_fail (widget != NULL, FALSE);
g_return_val_if_fail (CV_IS_IMAGE_WIDGET (widget), FALSE);
@ -767,29 +764,30 @@ static gboolean cvImageWidget_expose(GtkWidget* widget, GdkEventExpose* event, g
if (event->count > 0)
return FALSE;
cr = gdk_cairo_create(widget->window);
image_widget = CV_IMAGE_WIDGET (widget);
gdk_window_clear_area (widget->window,
0, 0,
widget->allocation.width,
widget->allocation.height);
if( image_widget->scaled_image ){
// center image in available region
int x0 = (widget->allocation.width - image_widget->scaled_image->cols)/2;
int y0 = (widget->allocation.height - image_widget->scaled_image->rows)/2;
gdk_draw_rgb_image( widget->window, widget->style->fg_gc[GTK_STATE_NORMAL],
x0, y0, MIN(image_widget->scaled_image->cols, widget->allocation.width),
pixbuf = gdk_pixbuf_new_from_data(image_widget->scaled_image->data.ptr, GDK_COLORSPACE_RGB, false,
8, MIN(image_widget->scaled_image->cols, widget->allocation.width),
MIN(image_widget->scaled_image->rows, widget->allocation.height),
GDK_RGB_DITHER_MAX, image_widget->scaled_image->data.ptr, image_widget->scaled_image->step );
image_widget->scaled_image->step, NULL, NULL);
gdk_cairo_set_source_pixbuf(cr, pixbuf, x0, y0);
}
else if( image_widget->original_image ){
gdk_draw_rgb_image( widget->window, widget->style->fg_gc[GTK_STATE_NORMAL],
0, 0,
MIN(image_widget->original_image->cols, widget->allocation.width),
MIN(image_widget->original_image->rows, widget->allocation.height),
GDK_RGB_DITHER_MAX, image_widget->original_image->data.ptr, image_widget->original_image->step );
pixbuf = gdk_pixbuf_new_from_data(image_widget->original_image->data.ptr, GDK_COLORSPACE_RGB, false,
8, MIN(image_widget->original_image->cols, widget->allocation.width),
MIN(image_widget->original_image->rows, widget->allocation.height),
image_widget->original_image->step, NULL, NULL);
gdk_cairo_set_source_pixbuf(cr, pixbuf, 0, 0);
}
cairo_paint(cr);
cairo_destroy(cr);
return TRUE;
}
@ -854,18 +852,18 @@ CV_IMPL int cvNamedWindow( const char* name, int flags )
//
// configure event handlers
// TODO -- move this to CvImageWidget ?
gtk_signal_connect( GTK_OBJECT(window->frame), "key-press-event",
GTK_SIGNAL_FUNC(icvOnKeyPress), window );
gtk_signal_connect( GTK_OBJECT(window->widget), "button-press-event",
GTK_SIGNAL_FUNC(icvOnMouse), window );
gtk_signal_connect( GTK_OBJECT(window->widget), "button-release-event",
GTK_SIGNAL_FUNC(icvOnMouse), window );
gtk_signal_connect( GTK_OBJECT(window->widget), "motion-notify-event",
GTK_SIGNAL_FUNC(icvOnMouse), window );
gtk_signal_connect( GTK_OBJECT(window->frame), "delete-event",
GTK_SIGNAL_FUNC(icvOnClose), window );
gtk_signal_connect( GTK_OBJECT(window->widget), "expose-event",
GTK_SIGNAL_FUNC(cvImageWidget_expose), window );
g_signal_connect( window->frame, "key-press-event",
G_CALLBACK(icvOnKeyPress), window );
g_signal_connect( window->widget, "button-press-event",
G_CALLBACK(icvOnMouse), window );
g_signal_connect( window->widget, "button-release-event",
G_CALLBACK(icvOnMouse), window );
g_signal_connect( window->widget, "motion-notify-event",
G_CALLBACK(icvOnMouse), window );
g_signal_connect( window->frame, "delete-event",
G_CALLBACK(icvOnClose), window );
g_signal_connect( window->widget, "expose-event",
G_CALLBACK(cvImageWidget_expose), window );
gtk_widget_add_events (window->widget, GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK) ;
@ -1225,7 +1223,6 @@ icvCreateTrackbar( const char* trackbar_name, const char* window_name,
GtkWidget* hscale_box = gtk_hbox_new( FALSE, 10 );
GtkWidget* hscale_label = gtk_label_new( trackbar_name );
GtkWidget* hscale = gtk_hscale_new_with_range( 0, count, 1 );
gtk_range_set_update_policy( GTK_RANGE(hscale), GTK_UPDATE_CONTINUOUS );
gtk_scale_set_digits( GTK_SCALE(hscale), 0 );
//gtk_scale_set_value_pos( hscale, GTK_POS_TOP );
gtk_scale_set_draw_value( GTK_SCALE(hscale), TRUE );
@ -1256,8 +1253,8 @@ icvCreateTrackbar( const char* trackbar_name, const char* window_name,
trackbar->notify = on_notify;
trackbar->notify2 = on_notify2;
trackbar->userdata = userdata;
gtk_signal_connect( GTK_OBJECT(trackbar->widget), "value-changed",
GTK_SIGNAL_FUNC(icvOnTrackbar), trackbar );
g_signal_connect( trackbar->widget, "value-changed",
G_CALLBACK(icvOnTrackbar), trackbar );
// queue a widget resize to trigger a window resize to
// compensate for the addition of trackbars