From be3fae148bc2a48a1d828b72221c0fd69bea79f7 Mon Sep 17 00:00:00 2001 From: Christoph Gysin Date: Wed, 25 Nov 2015 22:26:21 +0200 Subject: swaybg: implement scaling mode "fit" --- swaybg/main.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'swaybg') diff --git a/swaybg/main.c b/swaybg/main.c index 7cfe1320..e4c699c1 100644 --- a/swaybg/main.c +++ b/swaybg/main.c @@ -15,6 +15,7 @@ struct registry *registry; enum scaling_mode_t { SCALING_MODE_STRETCH, SCALING_MODE_FILL, + SCALING_MODE_FIT, SCALING_MODE_CENTER, SCALING_MODE_TILE, }; @@ -66,6 +67,8 @@ int main(int argc, const char **argv) { scaling_mode = SCALING_MODE_STRETCH; } else if (strcmp(scaling_mode_str, "fill") == 0) { scaling_mode = SCALING_MODE_FILL; + } else if (strcmp(scaling_mode_str, "fit") == 0) { + scaling_mode = SCALING_MODE_FIT; } else if (strcmp(scaling_mode_str, "center") == 0) { scaling_mode = SCALING_MODE_CENTER; } else if (strcmp(scaling_mode_str, "tile") == 0) { @@ -105,6 +108,26 @@ int main(int argc, const char **argv) { } } break; + case SCALING_MODE_FIT: + { + double window_ratio = (double) window->width / window->height; + double bg_ratio = width / height; + + if (window_ratio > bg_ratio) { + double scale = (double) window->height / height; + cairo_scale(window->cairo, scale, scale); + cairo_set_source_surface(window->cairo, image, + (double) window->width/2 / scale - width/2, + 0); + } else { + double scale = (double) window->width / width; + cairo_scale(window->cairo, scale, scale); + cairo_set_source_surface(window->cairo, image, + 0, + (double) window->height/2 / scale - height/2); + } + } + break; case SCALING_MODE_CENTER: cairo_set_source_surface(window->cairo, image, (double) window->width/2 - width/2, -- cgit v1.2.3-54-g00ecf