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Fix drag and dropping tabs with multi-line enabled.

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Closes #3075
This commit is contained in:
AngryGamer 2017-03-18 19:04:49 -07:00 committed by Don Ho
parent e94036114b
commit 5184880161
2 changed files with 43 additions and 12 deletions
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53
PowerEditor/src/WinControls/TabBar/TabBar.cpp
View File

@ -596,20 +596,28 @@ LRESULT TabBarPlus::runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lPara
if (wParam == 2)
return TRUE;
if (_doDragNDrop && !isMultiLine())
if (_doDragNDrop)
{
_nSrcTab = _nTabDragged = currentTabOn;
// ::DragDetect does not work with TCS_BUTTONS
if (::GetWindowLongPtr(_hSelf, GWL_STYLE) & TCS_BUTTONS)
{
_mightBeDragging = true;
}
else
{
_nSrcTab = _nTabDragged = currentTabOn;
POINT point;
point.x = LOWORD(lParam);
point.y = HIWORD(lParam);
::ClientToScreen(hwnd, &point);
if(::DragDetect(hwnd, point))
{
// Yes, we're beginning to drag, so capture the mouse...
_isDragging = true;
::SetCapture(hwnd);
}
POINT point;
point.x = LOWORD(lParam);
point.y = HIWORD(lParam);
::ClientToScreen(hwnd, &point);
if(::DragDetect(hwnd, point))
{
// Yes, we're beginning to drag, so capture the mouse...
_isDragging = true;
::SetCapture(hwnd);
}
}
}
notify(NM_CLICK, currentTabOn);
@ -626,6 +634,24 @@ LRESULT TabBarPlus::runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lPara
//#define NPPM_INTERNAL_ISDRAGGING 40926
case WM_MOUSEMOVE :
{
if (_mightBeDragging && !_isDragging)
{
if (++_dragCount > 2)
{
int tabFocused = static_cast<int32_t>(::SendMessage(_hSelf, TCM_GETCURFOCUS, 0, 0));
int tabSelected = static_cast<int32_t>(::SendMessage(_hSelf, TCM_GETCURSEL, 0, 0));
// make sure the tab they are moving is active.
if (tabFocused != tabSelected)
{
setActiveTab(tabFocused);
}
_nSrcTab = _nTabDragged = tabFocused;
_isDragging = true;
}
}
POINT p;
p.x = LOWORD(lParam);
p.y = HIWORD(lParam);
@ -732,6 +758,9 @@ LRESULT TabBarPlus::runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lPara
case WM_LBUTTONUP :
{
_mightBeDragging = false;
_dragCount = 0;
int xPos = LOWORD(lParam);
int yPos = HIWORD(lParam);
int currentTabOn = getTabIndexAt(xPos, yPos);

2
PowerEditor/src/WinControls/TabBar/TabBar.h
View File

@ -223,6 +223,8 @@ protected:
// it's the boss to decide if we do the drag N drop
static bool _doDragNDrop;
// drag N drop members
bool _mightBeDragging = false;
int _dragCount = 0;
bool _isDragging = false;
bool _isDraggingInside = false;
int _nSrcTab = -1;