static int view_all_exec(bContext *C, wmOperator *op)
{
SpaceClip *sc;
ARegion *ar;
int w, h, width, height;
float aspx, aspy;
int fit_view = RNA_boolean_get(op->ptr, "fit_view");
float zoomx, zoomy;
/* retrieve state */
sc = CTX_wm_space_clip(C);
ar = CTX_wm_region(C);
ED_space_clip_get_size(sc, &w, &h);
ED_space_clip_get_aspect(sc, &aspx, &aspy);
w = w * aspx;
h = h * aspy;
/* check if the image will fit in the image with zoom == 1 */
width = BLI_rcti_size_x(&ar->winrct) + 1;
height = BLI_rcti_size_y(&ar->winrct) + 1;
if (fit_view) {
const int margin = 5; /* margin from border */
zoomx = (float) width / (w + 2 * margin);
zoomy = (float) height / (h + 2 * margin);
sclip_zoom_set(C, min_ff(zoomx, zoomy), NULL);
}
else {
if ((w >= width || h >= height) && (width > 0 && height > 0)) {
zoomx = (float) width / w;
zoomy = (float) height / h;
/* find the zoom value that will fit the image in the image space */
sclip_zoom_set(C, 1.0f / power_of_2(1.0f / min_ff(zoomx, zoomy)), NULL);
}
else
sclip_zoom_set(C, 1.0f, NULL);
}
sc->xof = sc->yof = 0.0f;
ED_region_tag_redraw(CTX_wm_region(C));
return OPERATOR_FINISHED;
}
static int view_zoom_modal(bContext *C, wmOperator *op, const wmEvent *event)
{
ViewZoomData *vpd = op->customdata;
float delta, factor;
switch (event->type) {
case MOUSEMOVE:
delta = event->x - vpd->x + event->y - vpd->y;
if (U.uiflag & USER_ZOOM_INVERT)
delta *= -1;
factor = 1.0f + delta / 300.0f;
RNA_float_set(op->ptr, "factor", factor);
sclip_zoom_set(C, vpd->zoom * factor, vpd->location);
ED_region_tag_redraw(CTX_wm_region(C));
break;
default:
if (event->type == vpd->event_type && event->val == KM_RELEASE) {
view_zoom_exit(C, op, 0);
return OPERATOR_FINISHED;
}
break;
}
return OPERATOR_RUNNING_MODAL;
}
static int view_zoom_ratio_exec(bContext *C, wmOperator *op)
{
SpaceClip *sc = CTX_wm_space_clip(C);
sclip_zoom_set(C, RNA_float_get(op->ptr, "ratio"), NULL);
/* ensure pixel exact locations for draw */
sc->xof = (int) sc->xof;
sc->yof = (int) sc->yof;
ED_region_tag_redraw(CTX_wm_region(C));
return OPERATOR_FINISHED;
}
static void view_zoom_apply(bContext *C,
ViewZoomData *vpd,
wmOperator *op,
const wmEvent *event)
{
float factor;
if (U.viewzoom == USER_ZOOM_CONT) {
SpaceClip *sclip = CTX_wm_space_clip(C);
double time = PIL_check_seconds_timer();
float time_step = (float)(time - vpd->timer_lastdraw);
float fac;
float zfac;
if (U.uiflag & USER_ZOOM_HORIZ) {
fac = (float)(event->x - vpd->x);
}
else {
fac = (float)(event->y - vpd->y);
}
if (U.uiflag & USER_ZOOM_INVERT) {
fac = -fac;
}
zfac = 1.0f + ((fac / 20.0f) * time_step);
vpd->timer_lastdraw = time;
factor = (sclip->zoom * zfac) / vpd->zoom;
}
else {
float delta = event->x - vpd->x + event->y - vpd->y;
if (U.uiflag & USER_ZOOM_INVERT) {
delta *= -1;
}
factor = 1.0f + delta / 300.0f;
}
RNA_float_set(op->ptr, "factor", factor);
sclip_zoom_set(C, vpd->zoom * factor, vpd->location);
ED_region_tag_redraw(CTX_wm_region(C));
}
static void sclip_zoom_set_factor(const bContext *C, float zoomfac, float location[2])
{
SpaceClip *sc = CTX_wm_space_clip(C);
sclip_zoom_set(C, sc->zoom * zoomfac, location);
}
