src/interface/vapiGtkImageAux.c

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#include <gtk/gtk.h>
#include "vapiAux.h"
#include "vapiImagesAux.h"
#include "vapiGtkInterface.h"
#include "vapiGtkAux.h"


GdkPixbuf *
vapiGtkPixbuf (GtkWidget * widget, IplImage * img, int rescale)
{

        GdkPixbuf *tempPixbuf;
        IplImage *tempImg;

        switch (img->nChannels)
        {

        case 1:
                tempImg = vapiImagesSameSize (img, 3);
                cvMerge (img, img, img, NULL, tempImg);
                break;

        case 3:
                tempImg = vapiImagesSameSize (img, 3);
                cvConvertImage (img, tempImg, CV_CVTIMG_SWAP_RB);
                break;

        default:
                v_error (" Erro, numero invalido de canais: %d .",
                        img->nChannels);
                return 0;
                break;
        }

        tempPixbuf = gdk_pixbuf_new_from_data ((uchar *) tempImg->imageData,
                                               GDK_COLORSPACE_RGB,
                                               0,
                                               8,
                                               tempImg->width,
                                               tempImg->height,
                                               tempImg->widthStep,
                                               NULL, NULL);

        if (rescale > 0)
        {
                tempPixbuf = gdk_pixbuf_scale_simple (tempPixbuf,
                                                      widget->allocation.
                                                      width,
                                                      widget->allocation.
                                                      height,
                                                      GDK_INTERP_BILINEAR);
        }
        else
        {
                tempPixbuf = gdk_pixbuf_scale_simple (tempPixbuf,
                                                      img->width,
                                                      img->height,
                                                      GDK_INTERP_BILINEAR);
        }

        cvReleaseImage (&tempImg);
        return tempPixbuf;
}


void
vapiGtkPutImage (GtkWidget * Widget, IplImage * Image)
{


        GdkPixbuf *buf_imagem;

        buf_imagem = vapiGtkPixbuf (Widget, Image, 1);

        if (buf_imagem == 0)
        {
                return;
        }
        gtk_image_set_from_pixbuf ((GtkImage *) Widget, buf_imagem);


        /*
         * Evitar warnings e crashes quando buf_imagem==NULL.
         */
        if (buf_imagem != NULL)
                g_object_unref (buf_imagem);

}

void
vapiGtkPutImageNotScaled (GtkWidget * Widget, IplImage * Image)
{


        GdkPixbuf *buf_imagem;

        gtk_widget_set_size_request (Widget, Image->width, Image->height);
        buf_imagem = vapiGtkPixbuf (Widget, Image, 0);

        if (buf_imagem == 0)
        {
                return;
        }

        gtk_image_set_from_pixbuf ((GtkImage *) Widget, buf_imagem);


        /*
         * Evitar warnings e crashes quando buf_imagem==NULL.
         */
        if (buf_imagem != NULL)
                g_object_unref (buf_imagem);

}

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