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| author | Jose Diez <jose.manuel.diez@gmail.com> | 2015-11-11 16:05:32 +0000 |
|---|---|---|
| committer | Jose Diez <jose.manuel.diez@gmail.com> | 2015-11-11 16:05:32 +0000 |
| commit | c53ca5a9c59626a90551e2eaa00ad3e4247b3734 (patch) | |
| tree | 52530100ced9dd7d20bc95d031a51b07a70796b3 /src/viewport.c | |
| parent | ee3c3432cbc4a988c534b00cb274a11e3e23d6f8 (diff) | |
| download | imv-c53ca5a9c59626a90551e2eaa00ad3e4247b3734.tar.gz | |
Viewport: autoscale and center by default unless interacted with
Diffstat (limited to 'src/viewport.c')
| -rw-r--r-- | src/viewport.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/viewport.c b/src/viewport.c index 1630604..46c6ae7 100644 --- a/src/viewport.c +++ b/src/viewport.c @@ -26,6 +26,7 @@ void imv_init_viewport(struct imv_viewport *view, SDL_Window *window) view->scale = 1; view->x = view->y = view->fullscreen = view->redraw = 0; view->playing = 1; + view->locked = 0; } void imv_destroy_viewport(struct imv_viewport *view) @@ -59,6 +60,7 @@ void imv_viewport_reset(struct imv_viewport *view) view->scale = 1; view->x = view->y = 0; view->redraw = 1; + view->locked = 0; } void imv_viewport_move(struct imv_viewport *view, int x, int y) @@ -66,6 +68,7 @@ void imv_viewport_move(struct imv_viewport *view, int x, int y) view->x += x; view->y += y; view->redraw = 1; + view->locked = 1; } void imv_viewport_zoom(struct imv_viewport *view, int amount) @@ -76,6 +79,7 @@ void imv_viewport_zoom(struct imv_viewport *view, int amount) else if (view->scale < 0.01) view->scale = 0.1; view->redraw = 1; + view->locked = 1; } void imv_viewport_center(struct imv_viewport *view, const struct imv_image* img) @@ -86,6 +90,7 @@ void imv_viewport_center(struct imv_viewport *view, const struct imv_image* img) view->x = (ww - img->width * view->scale) / 2; view->y = (wh - img->height * view->scale) / 2; + view->locked = 0; view->redraw = 1; } @@ -106,6 +111,7 @@ void imv_viewport_scale_to_window(struct imv_viewport *view, const struct imv_im } imv_viewport_center(view, img); + view->locked = 0; } void imv_viewport_set_redraw(struct imv_viewport *view) @@ -117,3 +123,14 @@ 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_image* img) +{ + view->redraw = 1; + if(view->locked) { + return; + } + + imv_viewport_scale_to_window(view, img); + imv_viewport_center(view, img); +} |