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authorHarry Jeffery <harry@exec64.co.uk>2015-11-27 13:53:19 +0000
committerHarry Jeffery <harry@exec64.co.uk>2015-11-27 13:53:19 +0000
commit5f6fb9fb0d5cf523d810e5d3812d8172c5eaa50e (patch)
tree4413a6a514d855609e4dfcfb80a3efc605f386b2 /src/viewport.c
parentb17cb802d0b008e886e194972e661a65b0b28aa9 (diff)
downloadimv-5f6fb9fb0d5cf523d810e5d3812d8172c5eaa50e.tar.gz
Retrive viewport image dimensions from texture, not loader
Diffstat (limited to 'src/viewport.c')
-rw-r--r--src/viewport.c48
1 files changed, 22 insertions, 26 deletions
diff --git a/src/viewport.c b/src/viewport.c
index f53c0fa..a4004ad 100644
--- a/src/viewport.c
+++ b/src/viewport.c
@@ -43,21 +43,17 @@ void imv_viewport_toggle_fullscreen(struct imv_viewport *view)
}
}
-void imv_viewport_toggle_playing(struct imv_viewport *view, struct imv_loader *ldr)
+void imv_viewport_toggle_playing(struct imv_viewport *view, struct imv_texture *tex)
{
- if(view->playing) {
- view->playing = 0;
- } else if(imv_loader_is_animated(ldr)) {
- view->playing = 1;
- }
+ view->playing = !view->playing;
}
-void imv_viewport_scale_to_actual(struct imv_viewport *view, const struct imv_loader *ldr)
+void imv_viewport_scale_to_actual(struct imv_viewport *view, const struct imv_texture *tex)
{
view->scale = 1;
view->redraw = 1;
view->locked = 1;
- imv_viewport_center(view, ldr);
+ imv_viewport_center(view, tex);
}
void imv_viewport_move(struct imv_viewport *view, int x, int y)
@@ -68,30 +64,30 @@ void imv_viewport_move(struct imv_viewport *view, int x, int y)
view->locked = 1;
}
-void imv_viewport_zoom(struct imv_viewport *view, const struct imv_loader *ldr, enum imv_zoom_source src, int amount)
+void imv_viewport_zoom(struct imv_viewport *view, const struct imv_texture *tex, enum imv_zoom_source src, int amount)
{
double prev_scale = view->scale;
int x, y, ww, wh;
SDL_GetWindowSize(view->window, &ww, &wh);
- /* x and y cordinates are relative to the loader */
+ /* x and y cordinates are relative to the image */
if(src == IMV_ZOOM_MOUSE) {
SDL_GetMouseState(&x, &y);
x -= view->x;
y -= view->y;
} else {
- x = view->scale * ldr->width / 2;
- y = view->scale * ldr->height / 2;
+ x = view->scale * tex->width / 2;
+ y = view->scale * tex->height / 2;
}
- const int scaled_width = ldr->width * view->scale;
- const int scaled_height = ldr->height * view->scale;
+ const int scaled_width = tex->width * view->scale;
+ const int scaled_height = tex->height * view->scale;
const int ic_x = view->x + scaled_width/2;
const int ic_y = view->y + scaled_height/2;
const int wc_x = ww/2;
const int wc_y = wh/2;
- double delta_scale = 0.04 * ww * amount / ldr->width;
+ double delta_scale = 0.04 * ww * amount / tex->width;
view->scale += delta_scale;
const double min_scale = 0.1;
@@ -128,35 +124,35 @@ void imv_viewport_zoom(struct imv_viewport *view, const struct imv_loader *ldr,
view->locked = 1;
}
-void imv_viewport_center(struct imv_viewport *view, const struct imv_loader* ldr)
+void imv_viewport_center(struct imv_viewport *view, const struct imv_texture *tex)
{
int ww, wh;
SDL_GetWindowSize(view->window, &ww, &wh);
- view->x = (ww - ldr->width * view->scale) / 2;
- view->y = (wh - ldr->height * view->scale) / 2;
+ view->x = (ww - tex->width * view->scale) / 2;
+ view->y = (wh - tex->height * view->scale) / 2;
view->locked = 1;
view->redraw = 1;
}
-void imv_viewport_scale_to_window(struct imv_viewport *view, const struct imv_loader* ldr)
+void imv_viewport_scale_to_window(struct imv_viewport *view, const struct imv_texture *tex)
{
int ww, wh;
SDL_GetWindowSize(view->window, &ww, &wh);
double window_aspect = (double)ww / (double)wh;
- double image_aspect = (double)ldr->width / (double)ldr->height;
+ double image_aspect = (double)tex->width / (double)tex->height;
if(window_aspect > image_aspect) {
/* Image will become too tall before it becomes too wide */
- view->scale = (double)wh / (double)ldr->height;
+ view->scale = (double)wh / (double)tex->height;
} else {
/* Image will become too wide before it becomes too tall */
- view->scale = (double)ww / (double)ldr->width;
+ view->scale = (double)ww / (double)tex->width;
}
- imv_viewport_center(view, ldr);
+ imv_viewport_center(view, tex);
view->locked = 0;
}
@@ -170,13 +166,13 @@ void imv_viewport_set_title(struct imv_viewport *view, char* title)
SDL_SetWindowTitle(view->window, title);
}
-void imv_viewport_updated(struct imv_viewport *view, struct imv_loader* ldr)
+void imv_viewport_updated(struct imv_viewport *view, struct imv_texture *tex)
{
view->redraw = 1;
if(view->locked) {
return;
}
- imv_viewport_scale_to_window(view, ldr);
- imv_viewport_center(view, ldr);
+ imv_viewport_scale_to_window(view, tex);
+ imv_viewport_center(view, tex);
}