|
|
|
@ -62,40 +62,13 @@ int img_load(img_t *img, const char *filename) {
|
|
|
|
|
|
|
|
|
|
imlib_context_set_image(im);
|
|
|
|
|
|
|
|
|
|
img->re = 0;
|
|
|
|
|
img->w = imlib_image_get_width();
|
|
|
|
|
img->h = imlib_image_get_height();
|
|
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void img_display(img_t *img, win_t *win) {
|
|
|
|
|
float zw, zh;
|
|
|
|
|
|
|
|
|
|
if (!img || !win || !imlib_context_get_image())
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
/* set zoom level to fit image into window */
|
|
|
|
|
if (img->scalemode != SCALE_ZOOM) {
|
|
|
|
|
zw = (float) win->w / (float) img->w;
|
|
|
|
|
zh = (float) win->h / (float) img->h;
|
|
|
|
|
img->zoom = MIN(zw, zh);
|
|
|
|
|
|
|
|
|
|
if (img->zoom < zoom_min)
|
|
|
|
|
img->zoom = zoom_min;
|
|
|
|
|
else if (img->zoom > zoom_max)
|
|
|
|
|
img->zoom = zoom_max;
|
|
|
|
|
|
|
|
|
|
if (img->scalemode == SCALE_DOWN && img->zoom > 1.0)
|
|
|
|
|
img->zoom = 1.0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* center image in window */
|
|
|
|
|
img->x = (win->w - img->w * img->zoom) / 2;
|
|
|
|
|
img->y = (win->h - img->h * img->zoom) / 2;
|
|
|
|
|
|
|
|
|
|
img_render(img, win);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void img_check_pan(img_t *img, win_t *win) {
|
|
|
|
|
if (!img)
|
|
|
|
|
return;
|
|
|
|
@ -121,11 +94,37 @@ void img_check_pan(img_t *img, win_t *win) {
|
|
|
|
|
void img_render(img_t *img, win_t *win) {
|
|
|
|
|
int sx, sy, sw, sh;
|
|
|
|
|
int dx, dy, dw, dh;
|
|
|
|
|
float zw, zh;
|
|
|
|
|
|
|
|
|
|
if (!img || !win || !imlib_context_get_image())
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
img_check_pan(img, win);
|
|
|
|
|
if (!img->re) {
|
|
|
|
|
/* rendered for the first time */
|
|
|
|
|
img->re = 1;
|
|
|
|
|
|
|
|
|
|
/* set zoom level to fit image into window */
|
|
|
|
|
if (img->scalemode != SCALE_ZOOM) {
|
|
|
|
|
zw = (float) win->w / (float) img->w;
|
|
|
|
|
zh = (float) win->h / (float) img->h;
|
|
|
|
|
img->zoom = MIN(zw, zh);
|
|
|
|
|
|
|
|
|
|
if (img->zoom < zoom_min)
|
|
|
|
|
img->zoom = zoom_min;
|
|
|
|
|
else if (img->zoom > zoom_max)
|
|
|
|
|
img->zoom = zoom_max;
|
|
|
|
|
|
|
|
|
|
if (img->scalemode == SCALE_DOWN && img->zoom > 1.0)
|
|
|
|
|
img->zoom = 1.0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* center image in window */
|
|
|
|
|
img->x = (win->w - img->w * img->zoom) / 2;
|
|
|
|
|
img->y = (win->h - img->h * img->zoom) / 2;
|
|
|
|
|
} else {
|
|
|
|
|
/* typically after zooming and panning */
|
|
|
|
|
img_check_pan(img, win);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (img->x < 0) {
|
|
|
|
|
sx = -img->x / img->zoom;
|
|
|
|
|