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fix coordinate problem with large images - bug 1523

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This commit is contained in:
StevenPuttemans 2014-05-13 11:43:02 +02:00
parent 5e47aa6300
commit 12207ac763
1 changed files with 16 additions and 7 deletions
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23
modules/highgui/src/window_w32.cpp
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@ -1436,8 +1436,6 @@ static LRESULT CALLBACK HighGUIProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM
if( window->on_mouse ) if( window->on_mouse )
{ {
POINT pt; POINT pt;
RECT rect;
SIZE size = {0,0};
int flags = (wParam & MK_LBUTTON ? CV_EVENT_FLAG_LBUTTON : 0)| int flags = (wParam & MK_LBUTTON ? CV_EVENT_FLAG_LBUTTON : 0)|
(wParam & MK_RBUTTON ? CV_EVENT_FLAG_RBUTTON : 0)| (wParam & MK_RBUTTON ? CV_EVENT_FLAG_RBUTTON : 0)|
@ -1463,12 +1461,23 @@ static LRESULT CALLBACK HighGUIProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM
pt.x = GET_X_LPARAM( lParam ); pt.x = GET_X_LPARAM( lParam );
pt.y = GET_Y_LPARAM( lParam ); pt.y = GET_Y_LPARAM( lParam );
GetClientRect( window->hwnd, &rect ); if (window->flags & CV_WINDOW_AUTOSIZE)
icvGetBitmapData( window, &size, 0, 0 ); {
// As user can't change window size, do not scale window coordinates. Underlying windowing system
// may prevent full window from being displayed and in this case coordinates should not be scaled.
window->on_mouse( event, pt.x, pt.y, flags, window->on_mouse_param );
} else {
// Full window is displayed using different size. Scale coordinates to match underlying positions.
RECT rect;
SIZE size = {0, 0};
window->on_mouse( event, pt.x*size.cx/MAX(rect.right - rect.left,1), GetClientRect( window->hwnd, &rect );
pt.y*size.cy/MAX(rect.bottom - rect.top,1), flags, icvGetBitmapData( window, &size, 0, 0 );
window->on_mouse_param );
window->on_mouse( event, pt.x*size.cx/MAX(rect.right - rect.left,1),
pt.y*size.cy/MAX(rect.bottom - rect.top,1), flags,
window->on_mouse_param );
}
} }
break; break;