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Make scrolling work better (without constantly refreshing whole screen).

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29418 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Stefan Neis 2004-09-26 17:39:21 +00:00
parent 59060b8cfa
commit 5d826f601a
1 changed files with 93 additions and 12 deletions
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105
src/os2/window.cpp
View File

@ -938,28 +938,61 @@ void wxWindowOS2::ScrollWindow(
{
RECTL vRect;
::WinQueryWindowRect(GetHwnd(), &vRect);
int height = vRect.yTop;
if (pRect)
{
vRect.xLeft = pRect->x;
vRect.yTop = pRect->y + pRect->height;
vRect.yTop = height - pRect->y;
vRect.xRight = pRect->x + pRect->width;
vRect.yBottom = pRect->y;
}
else
{
::WinQueryWindowRect(GetHwnd(), &vRect);
vRect.yBottom = vRect.yTop - pRect->height;
}
nDy *= -1; // flip the sign of Dy as OS/2 is opposite Windows.
HPS hPs;
HRGN vUpdateRegion;
hPs = ::WinGetPS(GetHwnd());
vUpdateRegion = ::GpiCreateRegion(hPs, 0, NULL);
::WinScrollWindow( GetHwnd()
,(LONG)nDx
,(LONG)nDy
,&vRect
,&vRect
,NULLHANDLE
,vUpdateRegion
,NULL
,SW_SCROLLCHILDREN | SW_INVALIDATERGN
,SW_SCROLLCHILDREN //| SW_INVALIDATERGN
);
Refresh();
RGNRECT vRgnData;
PRECTL pUpdateRects = NULL;
vRgnData.ulDirection = RECTDIR_LFRT_TOPBOT;
if (::GpiQueryRegionRects( hPs // Pres space
,vUpdateRegion // Handle of region to query
,NULL // Return all RECTs
,&vRgnData // Will contain number or RECTs in region
,NULL // NULL to return number of RECTs
))
{
pUpdateRects = new RECTL[vRgnData.crcReturned];
vRgnData.crc = vRgnData.crcReturned;
vRgnData.ircStart = 1;
if (::GpiQueryRegionRects( hPs // Pres space of source
,vUpdateRegion // Handle of source region
,NULL // Return all RECTs
,&vRgnData // Operations set to return rects
,pUpdateRects // Will contain the actual RECTS
))
{
for(size_t i = 0; i < vRgnData.crc; i++)
{
wxRect UpdateRect;
UpdateRect.x = pUpdateRects[i].xLeft;
UpdateRect.y = height - pUpdateRects[i].yTop;
UpdateRect.width = pUpdateRects[i].xRight - pUpdateRects[i].xLeft;
UpdateRect.height = pUpdateRects[i].yTop - pUpdateRects[i].yBottom;
Refresh(FALSE, &UpdateRect);
}
delete [] pUpdateRects;
}
}
} // end of wxWindowOS2::ScrollWindow
// ---------------------------------------------------------------------------
@ -1220,11 +1253,14 @@ void wxWindowOS2::Refresh(
if (pRect)
{
RECTL vOs2Rect;
int height;
::WinQueryWindowRect(GetHwnd(), &vOs2Rect);
height = vOs2Rect.yTop;
vOs2Rect.xLeft = pRect->x;
vOs2Rect.yBottom = pRect->y;
vOs2Rect.yTop = height - pRect->y;
vOs2Rect.xRight = pRect->x + pRect->width;
vOs2Rect.yTop = pRect->y + pRect->height;
vOs2Rect.yBottom = vOs2Rect.yTop - pRect->height;
::WinInvalidateRect(hWnd, &vOs2Rect, bEraseBack);
}
@ -1955,7 +1991,7 @@ bool wxWindowOS2::DoPopupMenu(
pMenu->SetInvokingWindow(this);
pMenu->UpdateUI();
if ( x == -1 && y == -1 )
if ( nX == -1 && nY == -1 )
{
wxPoint mouse = wxGetMousePosition();
nX = mouse.x; nY = mouse.y;
@ -3686,6 +3722,51 @@ bool wxWindowOS2::HandlePaint()
return FALSE;
}
// Get all the rectangles from the region, convert the individual
// rectangles to "the other" coordinate system and reassemble a
// region from the rectangles, to be feed into m_updateRegion.
//
// FIXME: This is a bad hack since OS/2 API specifies that rectangles
// passed into GpiSetRegion must not have Bottom > Top,
// however, at first sight, it _seems_ to work nonetheless.
//
RGNRECT vRgnData;
PRECTL pUpdateRects = NULL;
vRgnData.ulDirection = RECTDIR_LFRT_TOPBOT;
if (::GpiQueryRegionRects( hPS // Pres space
,hRgn // Handle of region to query
,NULL // Return all RECTs
,&vRgnData // Will contain number or RECTs in region
,NULL // NULL to return number of RECTs
))
{
pUpdateRects = new RECTL[vRgnData.crcReturned];
vRgnData.crc = vRgnData.crcReturned;
vRgnData.ircStart = 1;
if (::GpiQueryRegionRects( hPS // Pres space of source
,hRgn // Handle of source region
,NULL // Return all RECTs
,&vRgnData // Operations set to return rects
,pUpdateRects // Will contain the actual RECTS
))
{
int height;
RECT vRect;
::WinQueryWindowRect(GetHwnd(), &vRect);
height = vRect.yTop;
for(size_t i = 0; i < vRgnData.crc; i++)
{
int rectHeight;
rectHeight = pUpdateRects[i].yTop - pUpdateRects[i].yBottom;
pUpdateRects[i].yTop = height - pUpdateRects[i].yTop;
pUpdateRects[i].yBottom = pUpdateRects[i].yTop + rectHeight;
}
::GpiSetRegion(hPS, hRgn, vRgnData.crc, pUpdateRects);
delete [] pUpdateRects;
}
}
m_updateRegion = wxRegion(hRgn, hPS);
vEvent.SetEventObject(this);