[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [44406] trunk/blender/source/blender/ editors/space_image/image_ops.c: TODO item: zoom to mouse location in image editor
Sergey Sharybin
sergey.vfx at gmail.com
Fri Feb 24 15:01:44 CET 2012
Revision: 44406
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=44406
Author: nazgul
Date: 2012-02-24 14:01:42 +0000 (Fri, 24 Feb 2012)
Log Message:
-----------
TODO item: zoom to mouse location in image editor
Modified Paths:
--------------
trunk/blender/source/blender/editors/space_image/image_ops.c
Modified: trunk/blender/source/blender/editors/space_image/image_ops.c
===================================================================
--- trunk/blender/source/blender/editors/space_image/image_ops.c 2012-02-24 13:50:36 UTC (rev 44405)
+++ trunk/blender/source/blender/editors/space_image/image_ops.c 2012-02-24 14:01:42 UTC (rev 44406)
@@ -82,33 +82,45 @@
/******************** view navigation utilities *********************/
-static void sima_zoom_set(SpaceImage *sima, ARegion *ar, float zoom)
+static void sima_zoom_set(SpaceImage *sima, ARegion *ar, float zoom, float location[2])
{
float oldzoom= sima->zoom;
int width, height;
sima->zoom= zoom;
- if (sima->zoom > 0.1f && sima->zoom < 4.0f)
- return;
+ if (sima->zoom < 0.1f || sima->zoom > 4.0f) {
+ /* check zoom limits */
+ ED_space_image_size(sima, &width, &height);
- /* check zoom limits */
- ED_space_image_size(sima, &width, &height);
+ width *= sima->zoom;
+ height *= sima->zoom;
- width *= sima->zoom;
- height *= sima->zoom;
+ if((width < 4) && (height < 4))
+ sima->zoom= oldzoom;
+ else if((ar->winrct.xmax - ar->winrct.xmin) <= sima->zoom)
+ sima->zoom= oldzoom;
+ else if((ar->winrct.ymax - ar->winrct.ymin) <= sima->zoom)
+ sima->zoom= oldzoom;
+ }
- if((width < 4) && (height < 4))
- sima->zoom= oldzoom;
- else if((ar->winrct.xmax - ar->winrct.xmin) <= sima->zoom)
- sima->zoom= oldzoom;
- else if((ar->winrct.ymax - ar->winrct.ymin) <= sima->zoom)
- sima->zoom= oldzoom;
+ if((U.uiflag & USER_ZOOM_TO_MOUSEPOS) && location) {
+ float aspx, aspy, w, h;
+
+ ED_space_image_size(sima, &width, &height);
+ ED_space_image_aspect(sima, &aspx, &aspy);
+
+ w= width*aspx;
+ h= height*aspy;
+
+ sima->xof+= ((location[0]-0.5f)*w-sima->xof)*(sima->zoom-oldzoom)/sima->zoom;
+ sima->yof+= ((location[1]-0.5f)*h-sima->yof)*(sima->zoom-oldzoom)/sima->zoom;
+ }
}
-static void sima_zoom_set_factor(SpaceImage *sima, ARegion *ar, float zoomfac)
+static void sima_zoom_set_factor(SpaceImage *sima, ARegion *ar, float zoomfac, float location[2])
{
- sima_zoom_set(sima, ar, sima->zoom*zoomfac);
+ sima_zoom_set(sima, ar, sima->zoom*zoomfac, location);
}
#if 0 // currently unused
@@ -343,11 +355,13 @@
float x, y;
float zoom;
int event_type;
+ float location[2];
} ViewZoomData;
static void image_view_zoom_init(bContext *C, wmOperator *op, wmEvent *event)
{
SpaceImage *sima= CTX_wm_space_image(C);
+ ARegion *ar= CTX_wm_region(C);
ViewZoomData *vpd;
op->customdata= vpd= MEM_callocN(sizeof(ViewZoomData), "ImageViewZoomData");
@@ -357,7 +371,9 @@
vpd->y= event->y;
vpd->zoom= sima->zoom;
vpd->event_type= event->type;
-
+
+ UI_view2d_region_to_view(&ar->v2d, event->mval[0], event->mval[1], &vpd->location[0], &vpd->location[1]);
+
WM_event_add_modal_handler(C, op);
}
@@ -380,7 +396,7 @@
SpaceImage *sima= CTX_wm_space_image(C);
ARegion *ar= CTX_wm_region(C);
- sima_zoom_set_factor(sima, ar, RNA_float_get(op->ptr, "factor"));
+ sima_zoom_set_factor(sima, ar, RNA_float_get(op->ptr, "factor"), NULL);
ED_region_tag_redraw(CTX_wm_region(C));
@@ -401,11 +417,13 @@
if (event->type == MOUSEZOOM) {
SpaceImage *sima= CTX_wm_space_image(C);
ARegion *ar= CTX_wm_region(C);
- float factor;
-
+ float factor, location[2];
+
+ UI_view2d_region_to_view(&ar->v2d, event->mval[0], event->mval[1], &location[0], &location[1]);
+
factor= 1.0f + (event->x-event->prevx+event->y-event->prevy)/300.0f;
RNA_float_set(op->ptr, "factor", factor);
- sima_zoom_set(sima, ar, sima->zoom*factor);
+ sima_zoom_set(sima, ar, sima->zoom*factor, location);
ED_region_tag_redraw(CTX_wm_region(C));
return OPERATOR_FINISHED;
@@ -427,7 +445,7 @@
case MOUSEMOVE:
factor= 1.0f + (vpd->x-event->x+vpd->y-event->y)/300.0f;
RNA_float_set(op->ptr, "factor", factor);
- sima_zoom_set(sima, ar, vpd->zoom*factor);
+ sima_zoom_set(sima, ar, vpd->zoom*factor, vpd->location);
ED_region_tag_redraw(CTX_wm_region(C));
break;
default:
@@ -505,7 +523,7 @@
if (U.ndof_flag & NDOF_ZOOM_INVERT)
zoom_factor = -zoom_factor;
- sima_zoom_set_factor(sima, ar, zoom_factor);
+ sima_zoom_set_factor(sima, ar, zoom_factor, NULL);
sima->xof += pan_x;
sima->yof += pan_y;
@@ -556,10 +574,10 @@
/* find the zoom value that will fit the image in the image space */
zoomx= width/w;
zoomy= height/h;
- sima_zoom_set(sima, ar, 1.0f/power_of_2(1/MIN2(zoomx, zoomy)));
+ sima_zoom_set(sima, ar, 1.0f/power_of_2(1/MIN2(zoomx, zoomy)), NULL);
}
else
- sima_zoom_set(sima, ar, 1.0f);
+ sima_zoom_set(sima, ar, 1.0f, NULL);
sima->xof= sima->yof= 0.0f;
@@ -617,7 +635,7 @@
size= 0.5f*MAX2(d[0], d[1])*MAX2(width, height)/256.0f;
if(size<=0.01f) size= 0.01f;
- sima_zoom_set(sima, ar, 0.7f/size);
+ sima_zoom_set(sima, ar, 0.7f/size, NULL);
ED_region_tag_redraw(CTX_wm_region(C));
@@ -642,18 +660,32 @@
/********************** view zoom in/out operator *********************/
-static int image_view_zoom_in_exec(bContext *C, wmOperator *UNUSED(op))
+static int image_view_zoom_in_exec(bContext *C, wmOperator *op)
{
SpaceImage *sima= CTX_wm_space_image(C);
ARegion *ar= CTX_wm_region(C);
+ float location[2];
- sima_zoom_set_factor(sima, ar, 1.25f);
+ RNA_float_get_array(op->ptr, "location", location);
+ sima_zoom_set_factor(sima, ar, 1.25f, location);
+
ED_region_tag_redraw(CTX_wm_region(C));
return OPERATOR_FINISHED;
}
+static int image_view_zoom_in_invoke(bContext *C, wmOperator *op, wmEvent *event)
+{
+ ARegion *ar= CTX_wm_region(C);
+ float location[2];
+
+ UI_view2d_region_to_view(&ar->v2d, event->mval[0], event->mval[1], &location[0], &location[1]);
+ RNA_float_set_array(op->ptr, "location", location);
+
+ return image_view_zoom_in_exec(C, op);
+}
+
void IMAGE_OT_view_zoom_in(wmOperatorType *ot)
{
/* identifiers */
@@ -661,22 +693,40 @@
ot->idname= "IMAGE_OT_view_zoom_in";
/* api callbacks */
+ ot->invoke= image_view_zoom_in_invoke;
ot->exec= image_view_zoom_in_exec;
ot->poll= space_image_main_area_poll;
+
+ /* properties */
+ RNA_def_float_vector(ot->srna, "location", 2, NULL, -FLT_MAX, FLT_MAX, "Location", "Cursor location in screen coordinates", -10.0f, 10.0f);
}
-static int image_view_zoom_out_exec(bContext *C, wmOperator *UNUSED(op))
+static int image_view_zoom_out_exec(bContext *C, wmOperator *op)
{
SpaceImage *sima= CTX_wm_space_image(C);
ARegion *ar= CTX_wm_region(C);
+ float location[2];
- sima_zoom_set_factor(sima, ar, 0.8f);
+ RNA_float_get_array(op->ptr, "location", location);
+ sima_zoom_set_factor(sima, ar, 0.8f, location);
+
ED_region_tag_redraw(CTX_wm_region(C));
return OPERATOR_FINISHED;
}
+static int image_view_zoom_out_invoke(bContext *C, wmOperator *op, wmEvent *event)
+{
+ ARegion *ar= CTX_wm_region(C);
+ float location[2];
+
+ UI_view2d_region_to_view(&ar->v2d, event->mval[0], event->mval[1], &location[0], &location[1]);
+ RNA_float_set_array(op->ptr, "location", location);
+
+ return image_view_zoom_out_exec(C, op);
+}
+
void IMAGE_OT_view_zoom_out(wmOperatorType *ot)
{
/* identifiers */
@@ -684,8 +734,12 @@
ot->idname= "IMAGE_OT_view_zoom_out";
/* api callbacks */
+ ot->invoke= image_view_zoom_out_invoke;
ot->exec= image_view_zoom_out_exec;
ot->poll= space_image_main_area_poll;
+
+ /* properties */
+ RNA_def_float_vector(ot->srna, "location", 2, NULL, -FLT_MAX, FLT_MAX, "Location", "Cursor location in screen coordinates", -10.0f, 10.0f);
}
/********************** view zoom ratio operator *********************/
@@ -695,7 +749,7 @@
SpaceImage *sima= CTX_wm_space_image(C);
ARegion *ar= CTX_wm_region(C);
- sima_zoom_set(sima, ar, RNA_float_get(op->ptr, "ratio"));
+ sima_zoom_set(sima, ar, RNA_float_get(op->ptr, "ratio"), NULL);
/* ensure pixel exact locations for draw */
sima->xof= (int)sima->xof;
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