vcl/source/window/winproc.cxx | 187 +++++++++++++++++++++++++++++-------------
1 file changed, 130 insertions(+), 57 deletions(-)
New commits:
commit bd20a73f4791626a0e9a2eef81f7e74188e4f8bd
Author: Caolán McNamara <caol...@redhat.com>
Date: Wed Mar 25 15:07:40 2015 +0000
refactor indescribable wall of code into reusable hunks
supposed to be logically the same before and after
except for the addition of allow pPreviousWindow
to be the pFocusWindow as well as the pMouseWindow
which I see as a good thing
Change-Id: I4810146397850abab90d37d0e0c2bfd674faa208
diff --git a/vcl/source/window/winproc.cxx b/vcl/source/window/winproc.cxx
index 537bac3f..e58bfe0 100644
--- a/vcl/source/window/winproc.cxx
+++ b/vcl/source/window/winproc.cxx
@@ -1374,63 +1374,100 @@ static bool shouldReusePreviousMouseWindow(const
SalWheelMouseEvent& rPrevEvt, c
return (rEvt.mnX == rPrevEvt.mnX && rEvt.mnY == rPrevEvt.mnY &&
rEvt.mnTime-rPrevEvt.mnTime < 500/*ms*/);
}
-static bool ImplHandleWheelEvent( vcl::Window* pWindow, const
SalWheelMouseEvent& rEvt, bool scaleDirectly = false )
+class HandleWheelEvent
{
- static SalWheelMouseEvent aPreviousEvent;
- static vcl::Window *pPreviousWindow;
+private:
+ ImplSVData* m_pSVData;
+ vcl::Window *m_pWindow;
+ Point m_aMousePos;
+ CommandWheelData m_aWheelData;
- ImplDelData aDogTag( pWindow );
+public:
- ImplSVData* pSVData = ImplGetSVData();
- if ( pSVData->maWinData.mpAutoScrollWin )
- pSVData->maWinData.mpAutoScrollWin->EndAutoScroll();
- if ( pSVData->maHelpData.mpHelpWin )
- ImplDestroyHelpWindow( true );
- if( aDogTag.IsDead() )
- return false;
+ struct WindowDescription
+ {
+ vcl::Window *m_pMouseWindow;
+ bool m_bIsFloat;
+ WindowDescription(vcl::Window *pMouseWindow, bool bIsFloat)
+ : m_pMouseWindow(pMouseWindow)
+ , m_bIsFloat(bIsFloat)
+ {
+ }
+ };
+
+ HandleWheelEvent(vcl::Window *pWindow, const SalWheelMouseEvent& rEvt,
bool bScaleDirectly)
+ : m_pSVData(ImplGetSVData())
+ , m_pWindow(pWindow)
+ , m_aMousePos(rEvt.mnX, rEvt.mnY)
+ {
+ CommandWheelMode nMode;
+ sal_uInt16 nCode = rEvt.mnCode;
+ bool bHorz = rEvt.mbHorz;
+ bool bPixel = rEvt.mbDeltaIsPixel;
+ if (bScaleDirectly)
+ nMode = CommandWheelMode::ZOOM_SCALE;
+ else if ( nCode & KEY_MOD1 )
+ nMode = CommandWheelMode::ZOOM;
+ else if ( nCode & KEY_MOD2 )
+ nMode = CommandWheelMode::DATAZOOM;
+ else
+ {
+ nMode = CommandWheelMode::SCROLL;
+ // #i85450# interpret shift-wheel as horizontal wheel action
+ if( (nCode & (KEY_SHIFT | KEY_MOD1 | KEY_MOD2 | KEY_MOD3)) ==
KEY_SHIFT )
+ bHorz = true;
+ }
- CommandWheelMode nMode;
- sal_uInt16 nCode = rEvt.mnCode;
- bool bHorz = rEvt.mbHorz;
- bool bPixel = rEvt.mbDeltaIsPixel;
- if ( scaleDirectly )
- nMode = CommandWheelMode::ZOOM_SCALE;
- else if ( nCode & KEY_MOD1 )
- nMode = CommandWheelMode::ZOOM;
- else if ( nCode & KEY_MOD2 )
- nMode = CommandWheelMode::DATAZOOM;
- else
+ m_aWheelData = CommandWheelData(rEvt.mnDelta, rEvt.mnNotchDelta,
rEvt.mnScrollLines, nMode, nCode, bHorz, bPixel);
+
+ }
+ bool Setup();
+ WindowDescription FindTarget();
+ vcl::Window *Dispatch(const WindowDescription& rTarget);
+ bool CallCommand(vcl::Window *pWindow, const Point &rMousePos)
{
- nMode = CommandWheelMode::SCROLL;
- // #i85450# interpret shift-wheel as horizontal wheel action
- if( (nCode & (KEY_SHIFT | KEY_MOD1 | KEY_MOD2 | KEY_MOD3)) ==
KEY_SHIFT )
- bHorz = true;
+ return ImplCallWheelCommand(pWindow, rMousePos, &m_aWheelData);
}
+ bool HandleEvent(const SalWheelMouseEvent& rEvt);
+ void Teardown(const WindowDescription& rTarget);
+};
+
+bool HandleWheelEvent::Setup()
+{
+ ImplDelData aDogTag( m_pWindow );
- CommandWheelData aWheelData( rEvt.mnDelta, rEvt.mnNotchDelta,
rEvt.mnScrollLines, nMode, nCode, bHorz, bPixel );
- Point aMousePos( rEvt.mnX, rEvt.mnY );
- bool bRet = true;
+ if (m_pSVData->maWinData.mpAutoScrollWin)
+ m_pSVData->maWinData.mpAutoScrollWin->EndAutoScroll();
+ if (m_pSVData->maHelpData.mpHelpWin)
+ ImplDestroyHelpWindow( true );
+ if (aDogTag.IsDead())
+ return false;
+ return true;
+}
+HandleWheelEvent::WindowDescription HandleWheelEvent::FindTarget()
+{
// first check any floating window ( eg. drop down listboxes)
bool bIsFloat = false;
vcl::Window *pMouseWindow = NULL;
- if ( pSVData->maWinData.mpFirstFloat && !pSVData->maWinData.mpCaptureWin &&
- !pSVData->maWinData.mpFirstFloat->ImplIsFloatPopupModeWindow( pWindow
) )
+
+ if (m_pSVData->maWinData.mpFirstFloat &&
!m_pSVData->maWinData.mpCaptureWin &&
+ !m_pSVData->maWinData.mpFirstFloat->ImplIsFloatPopupModeWindow(
m_pWindow ) )
{
HitTest nHitTest = HITTEST_OUTSIDE;
- pMouseWindow = pSVData->maWinData.mpFirstFloat->ImplFloatHitTest(
pWindow, aMousePos, nHitTest );
+ pMouseWindow = m_pSVData->maWinData.mpFirstFloat->ImplFloatHitTest(
m_pWindow, m_aMousePos, nHitTest );
}
// then try the window directly beneath the mouse
if( !pMouseWindow )
- pMouseWindow = pWindow->ImplFindWindow( aMousePos );
+ pMouseWindow = m_pWindow->ImplFindWindow( m_aMousePos );
else
{
// transform coordinates to float window frame coordinates
pMouseWindow = pMouseWindow->ImplFindWindow(
pMouseWindow->OutputToScreenPixel(
pMouseWindow->AbsoluteScreenToOutputPixel(
- pWindow->OutputToAbsoluteScreenPixel(
- pWindow->ScreenToOutputPixel( aMousePos ) ) ) ) );
+ m_pWindow->OutputToAbsoluteScreenPixel(
+ m_pWindow->ScreenToOutputPixel( m_aMousePos ) ) ) ) );
bIsFloat = true;
}
@@ -1442,34 +1479,33 @@ static bool ImplHandleWheelEvent( vcl::Window* pWindow,
const SalWheelMouseEvent
pMouseWindow = pMouseWindow->GetParent();
}
- // avoid the problem that scrolling via wheel to this point brings a widget
- // under the mouse that also accepts wheel commands, so stick with the old
- // widget if the time gap is very small
- if (shouldReusePreviousMouseWindow(aPreviousEvent, rEvt) &&
acceptableWheelScrollTarget(pPreviousWindow))
- {
- pMouseWindow = pPreviousWindow;
- }
+ return WindowDescription(pMouseWindow, bIsFloat);
+}
- aPreviousEvent = rEvt;
+vcl::Window *HandleWheelEvent::Dispatch(const WindowDescription& rTarget)
+{
+ vcl::Window *pMouseWindow = rTarget.m_pMouseWindow;
+
+ vcl::Window *pDispatchedTo = NULL;
if (acceptableWheelScrollTarget(pMouseWindow) && pMouseWindow->IsEnabled())
{
// transform coordinates to float window frame coordinates
Point aRelMousePos( pMouseWindow->OutputToScreenPixel(
pMouseWindow->AbsoluteScreenToOutputPixel(
- pWindow->OutputToAbsoluteScreenPixel(
- pWindow->ScreenToOutputPixel( aMousePos ) ) ) )
);
- bRet = ImplCallWheelCommand( pMouseWindow, aRelMousePos, &aWheelData );
+ m_pWindow->OutputToAbsoluteScreenPixel(
+ m_pWindow->ScreenToOutputPixel( m_aMousePos ) )
) ) );
+ bool bPropogate = CallCommand(pMouseWindow, aRelMousePos);
+ if (!bPropogate)
+ pDispatchedTo = pMouseWindow;
}
- pPreviousWindow = !bRet ? pMouseWindow : NULL;
-
// if the command was not handled try the focus window
- if ( bRet )
+ if (!pDispatchedTo)
{
- vcl::Window* pFocusWindow =
pWindow->ImplGetWindowImpl()->mpFrameData->mpFocusWin;
+ vcl::Window* pFocusWindow =
m_pWindow->ImplGetWindowImpl()->mpFrameData->mpFocusWin;
if ( pFocusWindow && (pFocusWindow != pMouseWindow) &&
- (pFocusWindow == pSVData->maWinData.mpFocusWin) )
+ (pFocusWindow == m_pSVData->maWinData.mpFocusWin) )
{
// no wheel-messages to disabled windows
if ( pFocusWindow->IsEnabled() && pFocusWindow->IsInputEnabled()
&& ! pFocusWindow->IsInModalMode() )
@@ -1477,17 +1513,23 @@ static bool ImplHandleWheelEvent( vcl::Window* pWindow,
const SalWheelMouseEvent
// transform coordinates to focus window frame coordinates
Point aRelMousePos( pFocusWindow->OutputToScreenPixel(
pFocusWindow->AbsoluteScreenToOutputPixel(
- pWindow->OutputToAbsoluteScreenPixel(
- pWindow->ScreenToOutputPixel( aMousePos
) ) ) ) );
- bRet = ImplCallWheelCommand( pFocusWindow, aRelMousePos,
&aWheelData );
+ m_pWindow->OutputToAbsoluteScreenPixel(
+ m_pWindow->ScreenToOutputPixel(
m_aMousePos ) ) ) ) );
+ bool bPropogate = CallCommand(pFocusWindow, aRelMousePos);
+ if (!bPropogate)
+ pDispatchedTo = pMouseWindow;
}
}
}
+ return pDispatchedTo;
+}
+void HandleWheelEvent::Teardown(const WindowDescription& rTarget)
+{
// close floaters
- if( ! bIsFloat && pSVData->maWinData.mpFirstFloat )
+ if (!rTarget.m_bIsFloat && m_pSVData->maWinData.mpFirstFloat)
{
- FloatingWindow* pLastLevelFloat =
pSVData->maWinData.mpFirstFloat->ImplFindLastLevelFloat();
+ FloatingWindow* pLastLevelFloat =
m_pSVData->maWinData.mpFirstFloat->ImplFindLastLevelFloat();
if( pLastLevelFloat )
{
sal_uLong nPopupFlags = pLastLevelFloat->GetPopupModeFlags();
@@ -1497,8 +1539,39 @@ static bool ImplHandleWheelEvent( vcl::Window* pWindow,
const SalWheelMouseEvent
}
}
}
+}
+
+bool HandleWheelEvent::HandleEvent(const SalWheelMouseEvent& rEvt)
+{
+ static SalWheelMouseEvent aPreviousEvent;
+ static vcl::Window *pPreviousWindow;
+
+ if (!Setup())
+ return false;
+
+ WindowDescription aTarget = FindTarget();
- return !bRet;
+ // avoid the problem that scrolling via wheel to this point brings a widget
+ // under the mouse that also accepts wheel commands, so stick with the old
+ // widget if the time gap is very small
+ if (shouldReusePreviousMouseWindow(aPreviousEvent, rEvt) &&
acceptableWheelScrollTarget(pPreviousWindow))
+ {
+ aTarget.m_pMouseWindow = pPreviousWindow;
+ }
+
+ aPreviousEvent = rEvt;
+
+ pPreviousWindow = Dispatch(aTarget);
+
+ Teardown(aTarget);
+
+ return pPreviousWindow != NULL;
+}
+
+static bool ImplHandleWheelEvent( vcl::Window* pWindow, const
SalWheelMouseEvent& rEvt, bool scaleDirectly = false )
+{
+ HandleWheelEvent aHandler(pWindow, rEvt, scaleDirectly);
+ return aHandler.HandleEvent(rEvt);
}
#define IMPL_PAINT_CHECKRTL ((sal_uInt16)0x0020)
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