int binary_cb(void)
{
Image* tmp = gc.image;
if (tmp != NULL){
IupSetfAttribute(gc.msgbar, "TITLE", "Grey scale image ...");
gc.image = imgGrey(tmp);
repaint_cb(gc.canvas); /* repaint canvas */
imgDestroy(tmp);
tmp = gc.image;
gc.image = imgBinary(tmp);
repaint_cb(gc.canvas); /* repaint canvas */
imgDestroy(tmp);
IupSetfAttribute(gc.msgbar, "TITLE", "Binary image ...");
}
return IUP_DEFAULT;
}
int load_image_cb(void) {
if(image_copy == NULL) {
IupSetfAttribute(gc.msgbar, "TITLE", "There's no copy of image saved");
return IUP_DEFAULT;
}
gc.image = imgCopy(image_copy);
repaint_cb(gc.canvas);
IupSetfAttribute(gc.msgbar, "TITLE", "Last state saved is loaded");
return IUP_DEFAULT;
}
int dilate_cb(void)
{
Image *tmp = gc.image;
if(tmp == NULL || imgGetDimColorSpace(tmp) != 1) {
IupSetfAttribute(gc.msgbar, "TITLE", "Image doesn't exist or not binary");
return IUP_DEFAULT;
}
IupSetfAttribute(gc.msgbar, "TITLE", "Image dilatating ...");
gc.image = imgDilatation(tmp);
repaint_cb(gc.canvas); /* repaint canvas */
imgDestroy(tmp);
IupSetfAttribute(gc.msgbar, "TITLE", "Image dilatated ...");
return IUP_DEFAULT;
}
int change_cb(void) {
Image *tmp = gc.image;
if(tmp == NULL || imgGetDimColorSpace(tmp) != 1) {
IupSetfAttribute(gc.msgbar, "TITLE", "Image doesn't exist or not binary");
return IUP_DEFAULT;
}
IupSetfAttribute(gc.msgbar, "TITLE", "Changing binary colors ...");
gc.image = imgChangeBinary(tmp);
repaint_cb(gc.canvas); /* repaint canvas */
imgDestroy(tmp);
IupSetfAttribute(gc.msgbar, "TITLE", "Binary colors changed ...");
return IUP_DEFAULT;
}
/* function called in the event of changes in the width or in the height of the canvas */
int resize_cb(Ihandle *self, int new_width, int new_height)
{
IupGLMakeCurrent(self); /* Make the canvas current in OpenGL */
/* define the entire canvas as the viewport */
glViewport(0,0,new_width,new_height);
/* transformation applied to each vertex */
glMatrixMode(GL_MODELVIEW);
glLoadIdentity(); /* identity, i. e. no transformation */
/* projection transformation (orthographic in the xy plane) */
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D (0.0, (GLsizei)(new_width), 0.0, (GLsizei)(new_height)); /* window of interest [0,w]x[0,h] */
/* update canvas size and repaint */
gc.width=new_width;
gc.height=new_height;
repaint_cb(gc.canvas);
return IUP_DEFAULT; /* return to the IUP main loop */
}
int load_cb(void)
{
char* file_name = IupSelectFile("File Selection","*.bmp","Load a BMP file");
if (!file_name) {
IupSetfAttribute(gc.msgbar, "TITLE", "Selection failed");
return IUP_DEFAULT;
}
if (gc.image!=NULL) imgDestroy(gc.image);
gc.image=imgReadBMP(file_name); /* loads the image */
if (gc.image!=NULL) {
gc.width = imgGetWidth(gc.image);
gc.height = imgGetHeight(gc.image);
IupCanvasResize(gc.canvas,gc.dialog,gc.width,gc.height);
repaint_cb(gc.canvas);
IupSetfAttribute(gc.msgbar, "TITLE", "%s", strip_path_from_filename(file_name));
} else
IupSetfAttribute(gc.msgbar, "TITLE", "Can't open %s", strip_path_from_filename(file_name));
return IUP_DEFAULT;
}
/* function called in the event of changes in the width or in the height of the canvas */
int resize_cb(Ihandle *self, int new_width, int new_height)
{
IupGLMakeCurrent(self); /* Make the canvas current in OpenGL */
/* define the entire canvas as the viewport */
glViewport(0,0,new_width,new_height);
/* transformation applied to each vertex */
glMatrixMode(GL_MODELVIEW);
glLoadIdentity(); /* identity, i. e. no transformation */
/* projection transformation (orthographic in the xy plane) */
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60,4./3.,1.,15);
gluLookAt(3,3,3, 0,0,0, 0,0,1);
/* update canvas size and repaint */
width=new_width;
height=new_height;
repaint_cb(canvas);
return IUP_DEFAULT; /* return to the IUP main loop */
}
int idle_cd(void)
{
t+=1;
repaint_cb(canvas);
return IUP_DEFAULT; /* return to the IUP main loop */
}
