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@ -57,10 +57,8 @@ void img_load(img_t *img, const char *filename) {
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img->h = imlib_image_get_height();
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}
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void img_render(img_t *img, win_t *win) {
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void img_display(img_t *img, win_t *win) {
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float zw, zh;
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unsigned int sx, sy, sw, sh;
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unsigned int dx, dy, dw, dh;
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if (!img || !win || !imlib_context_get_image())
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return;
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@ -84,30 +82,43 @@ void img_render(img_t *img, win_t *win) {
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img->x = (win->w - img->w * img->zoom) / 2;
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img->y = (win->h - img->h * img->zoom) / 2;
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if (img->x < 0) {
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sx = -img->x / img->zoom;
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sw = (img->x + win->w) / img->zoom;
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dx = 0;
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dw = win->w;
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win_clear(win);
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img_render(img, win, 0, 0, win->w, win->h);
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}
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void img_render(img_t *img, win_t *win, int x, int y, int w, int h) {
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int sx, sy, sw, sh;
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int dx, dy, dw, dh;
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if (!img || !win || !imlib_context_get_image())
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return;
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if (img->x < x) {
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sx = (x - img->x) / img->zoom;
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sw = MIN(w / img->zoom, img->w - sx);
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dx = x;
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dw = sw * img->zoom;
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} else {
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sx = 0;
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sw = img->w;
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sw = MIN((w - img->x + x) / img->zoom, img->w);
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dx = img->x;
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dw = img->w * img->zoom;
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dw = sw * img->zoom;
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}
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if (img->y < 0) {
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sy = -img->y / img->zoom;
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sh = (img->y + win->h) / img->zoom;
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dy = 0;
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dh = win->h;
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if (img->y < y) {
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sy = (y - img->y) / img->zoom;
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sh = MIN(h / img->zoom, img->h - sy);
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dy = y;
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dh = sh * img->zoom;
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} else {
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sy = 0;
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sh = img->h;
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sh = MIN((h - img->y + y) / img->zoom, img->h);
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dy = img->y;
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dh = img->h * img->zoom;
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dh = sh * img->zoom;
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}
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win_clear(win);
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if (sw < 0 || sh < 0)
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return;
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imlib_render_image_part_on_drawable_at_size(sx, sy, sw, sh, dx, dy, dw, dh);
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}
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