/* Callback routine for AG_FileDlg. */
static int
LoadImage(AG_Event *event)
{
/* AG_FileDlg *fd = AG_SELF(); */
AG_Window *winParent = AG_PTR(1);
char *file = AG_STRING(2);
AG_FileType *ft = AG_PTR(3);
AG_Surface *s;
AG_Window *win;
AG_Scrollview *sv;
Uint8 *pSrc;
Uint i;
if (strcmp(ft->exts[0], "*.bmp") == 0) {
s = AG_SurfaceFromBMP(file);
} else if (strcmp(ft->exts[0], "*.jpg") == 0) {
s = AG_SurfaceFromJPEG(file);
} else if (strcmp(ft->exts[0], "*.png") == 0) {
s = AG_SurfaceFromPNG(file);
} else {
AG_SetError("Unrecognized format: %s", ft->exts[0]);
return (-1);
}
if (s == NULL)
return (-1);
if ((win = AG_WindowNew(0)) == NULL) {
AG_SurfaceFree(s);
return (-1);
}
AG_WindowSetCaption(win, "Image <%s>", AG_ShortFilename(file));
/* We use AG_FileOptionFoo() to retrieve per-type options. */
if (AG_FileOptionBool(ft,"invert")) {
pSrc = (Uint8 *)s->pixels;
for (i = 0; i < s->w*s->h; i++) {
Uint8 r, g, b;
AG_GetPixelRGB(AG_GET_PIXEL(s,pSrc), s->format,
&r,&g,&b);
r = 255 - r;
g = 255 - g;
b = 255 - b;
AG_PUT_PIXEL(s, pSrc,
AG_MapPixelRGB(s->format, r,g,b));
pSrc += s->format->BytesPerPixel;
}
}
/*
* Place an AG_Pixmap(3) widget inside of an AG_Scrollview(3) so
* the user can pan the view.
*/
sv = AG_ScrollviewNew(win, AG_SCROLLVIEW_BY_MOUSE|AG_SCROLLVIEW_EXPAND);
AG_PixmapFromSurfaceScaled(sv, 0, s, s->w, s->h);
AG_SurfaceFree(s);
AG_WindowSetGeometry(win, -1, -1, 320, 240);
AG_WindowAttach(winParent, win);
AG_WindowShow(win);
return (0);
}
static int
TestGUI(void *obj, AG_Window *win)
{
char path[AG_PATHNAME_MAX];
AG_Surface *su, *su2;
/* Load, display and save a PNG file. */
AG_LabelNewS(win, 0, "Loading agar.png:");
if (!AG_ConfigFile("load-path", "agar", "png", path, sizeof(path))) {
if ((su = AG_SurfaceFromPNG(path)) == NULL) {
AG_LabelNew(win, 0, "%s: %s", path, AG_GetError());
} else {
AG_PixmapFromSurface(win, 0, su);
}
AG_LabelNewS(win, 0, "Saving agar.png:");
if (AG_SurfaceExportPNG(su, "agar-save.png") == -1) {
AG_LabelNew(win, 0, "Save failed: %s", AG_GetError());
} else {
if ((su2 = AG_SurfaceFromPNG("agar-save.png")) == NULL) {
AG_LabelNew(win, 0, "Load failed: %s", AG_GetError());
} else {
AG_PixmapFromSurface(win, 0, su2);
}
}
} else {
AG_LabelNewS(win, 0, AG_GetError());
}
/* Load/save a PNG file in indexed color format. */
AG_LabelNewS(win, 0, "Loading agar-index.png:");
if (!AG_ConfigFile("load-path", "agar-index", "png", path, sizeof(path))) {
if ((su = AG_SurfaceFromPNG(path)) == NULL) {
AG_LabelNew(win, 0, "Failed: %s", AG_GetError());
} else {
AG_PixmapFromSurface(win, 0, su);
}
AG_LabelNewS(win, 0, "Saving agar-index.png:");
if (AG_SurfaceExportPNG(su, "agar-index-save.png") == -1) {
AG_LabelNew(win, 0, "Save failed: %s", AG_GetError());
} else {
if ((su2 = AG_SurfaceFromPNG("agar-index-save.png")) == NULL) {
AG_LabelNew(win, 0, "Load failed: %s", AG_GetError());
} else {
AG_PixmapFromSurface(win, 0, su2);
}
}
} else {
AG_LabelNewS(win, 0, AG_GetError());
}
/* Load/save a JPEG file. */
AG_LabelNewS(win, 0, "Loading pepe.jpg:");
if (!AG_ConfigFile("load-path", "pepe", "jpg", path, sizeof(path))) {
if ((su = AG_SurfaceFromJPEG(path)) == NULL) {
AG_LabelNew(win, 0, "Failed: %s", AG_GetError());
} else {
AG_PixmapFromSurface(win, 0, su);
}
AG_LabelNewS(win, 0, "Saving pepe.jpg:");
if (AG_SurfaceExportJPEG(su, "pepe-save.jpg") == -1) {
AG_LabelNew(win, 0, "Save failed: %s", AG_GetError());
} else {
if ((su2 = AG_SurfaceFromJPEG("pepe-save.jpg")) == NULL) {
AG_LabelNew(win, 0, "Load failed: %s", AG_GetError());
} else {
AG_PixmapFromSurface(win, 0, su2);
}
}
} else {
AG_LabelNewS(win, 0, AG_GetError());
}
return (0);
}
