/********************************************************************************************
> BOOL MakeBitmapFilter::FindCentreInsertionPosition(Spread** Spread, DocCoord* Position)
Author: Will_Cowling (Xara Group Ltd) <*****@*****.**> (from Simon)
Created: 12/6/96
Inputs: -
Outputs: Spread: The spread to place the clipboard objects on
Position:The centre of the view (Spread coords)
Purpose: Finds the centre insertion position for clipboard objects
********************************************************************************************/
BOOL MakeBitmapFilter::FindCentreInsertionPosition(Spread** Spread, DocCoord* Position)
{
// ---------------------------------------------------------------------------------
// Find out which spread is in the centre of the view
// this is the spread that the pasted objects will be placed on
// Obtain the current DocView
DocView* CurDocView = DocView::GetCurrent();
ENSURE(CurDocView != NULL, "The current DocView is NULL");
if (CurDocView == NULL)
return FALSE; // No DocView
// Get the view rect
WorkRect WrkViewRect = CurDocView->GetViewRect();
if (WrkViewRect.IsEmpty() || (!WrkViewRect.IsValid()) )
return FALSE; // Defensive
// Determine the centre of the view
WorkCoord WrkCentreOfView;
WrkCentreOfView.x = WrkViewRect.lox + (WrkViewRect.Width()/2);
WrkCentreOfView.y = WrkViewRect.loy + (WrkViewRect.Height()/2);
// FindEnclosing spread requires an OilCoord
OilCoord OilCentreOfView = WrkCentreOfView.ToOil(CurDocView->GetScrollOffsets());
// Find out which spread to insert the pasteboard objects onto
(*Spread) = CurDocView->FindEnclosingSpread(OilCentreOfView);
if ((*Spread) == NULL)
return FALSE; // There is no spread
// Phew
// ---------------------------------------------------------------------------------
// Now lets find the spread coordinate of the centre of the view
DocRect DocViewRect = CurDocView->GetDocViewRect(*Spread);
if ( DocViewRect.IsEmpty() || (!DocViewRect.IsValid()) )
{
ERROR3("DocViewRect is invalid");
return FALSE; // Defensive
}
// Find the centre of the DocViewRect
DocCoord DocCentreOfView;
DocCentreOfView.x = DocViewRect.lox + (DocViewRect.Width()/2);
DocCentreOfView.y = DocViewRect.loy + (DocViewRect.Height()/2);
// --------------------------------------------------------------------------------
// Now convert from DocCoords to spread coords
DocRect PhysSpreadRect = (*Spread)->GetPasteboardRect();
(*Position).x = DocCentreOfView.x - PhysSpreadRect.lo.x;
(*Position).y = DocCentreOfView.y - PhysSpreadRect.lo.y;
return TRUE;
}
KernelBitmap* SGNameDrag::MakeImage(UINT32 nDepth)
{
// If there's no current View, or no Spread, then fail.
DocView* pView = DocView::GetCurrent();
if (pView == 0) return 0;
Spread* pSpread = pView->FindEnclosingSpread(OilCoord(0, 0));
if (pSpread == 0) return 0;
// Create a device context for the display.
CDC sdc;
sdc.CreateDC("DISPLAY", 0, 0, 0);
// Calculate the size of the rendering and set up the rendering matrix etc.
Matrix matConvert;
FIXED16 fxScale = 1;
INT32 nSel = NameGallery::Instance()->GetSelectedItemCount();
DocRect drClip(0, 0, SG_DefaultNameText, nSel * SG_DefaultSmallIcon);
// Work out the destination bitmap's characteristics.
double dpi = (double) GetDeviceCaps(sdc.m_hDC, LOGPIXELSX);
if (nDepth == 0)
nDepth = GetDeviceCaps(sdc.m_hDC, BITSPIXEL) * GetDeviceCaps(sdc.m_hDC, PLANES);
// Create a render region with the given properties of the display etc.
GRenderBitmap* pRenderer = new GRenderBitmap(drClip, matConvert, fxScale, nDepth, dpi);
ERRORIF(pRenderer == 0, _R(IDE_NOMORE_MEMORY), 0);
pRenderer->AttachDevice(pView, &sdc, pSpread);
pRenderer->StartRender();
pRenderer->SaveContext();
// Blank the background.
pRenderer->SetLineWidth(0);
pRenderer->SetLineColour(COLOUR_WHITE);
pRenderer->SetFillColour(COLOUR_WHITE);
pRenderer->DrawRect(&drClip);
// Render the item's name.
DocColour dcText(COLOUR_BLACK), dcBack(COLOUR_WHITE);
pRenderer->SetFixedSystemTextColours(&dcText, &dcBack);
String_256 strName;
m_pSourceItem->GetNameText(&strName);
pRenderer->DrawFixedSystemText(&strName, drClip);
// Create a kernel bitmap from the OIL bitmap and return it.
pRenderer->RestoreContext();
pRenderer->StopRender();
OILBitmap* pOilMaskBmp = pRenderer->ExtractBitmap();
delete pRenderer;
KernelBitmap* pkb = new KernelBitmap(pOilMaskBmp, TRUE);
ERRORIF(pkb == 0, _R(IDE_NOMORE_MEMORY), 0);
return pkb;
}
KernelBitmap* GalleryLineDragInfo::GetSolidDragMask()
{
// Note we abuse this call (like our base class abuses this call) to create the bitmap
// itself. We don't use DragMask itself anymore (i.e. it stays NULL)
if (!DragMask && !TheBitmap)
{
DocView *View = DocView::GetCurrent();
if (View == NULL)
{
return NULL;
}
Spread *pSpread = View->FindEnclosingSpread(OilCoord(0,0));
if (pSpread == NULL)
{
return NULL;
}
// Find the size of the rendered item.
DocRect ClipRegion(0,0, 750*100, 750*50);
// ClipRegion.lo.x = ClipRegion.lo.y = 0;
// SourceItem->GetSize(c_eLineAttrDragTextPos, &ClipRegion.hi.x, &ClipRegion.hi.y);
Matrix ConvertMatrix;
FIXED16 ViewScale = 1;
wxScreenDC DisplayDC;
double dpi = (double) OSRenderRegion::GetFixedDCPPI(DisplayDC).GetWidth();
GRenderBitmap* pMaskRegion = new GRenderBitmap(ClipRegion, ConvertMatrix, ViewScale,
32, dpi);
pMaskRegion->SetDoCompression(TRUE); // misnamed call to indicate we want transparency
pMaskRegion->AttachDevice(View, &DisplayDC, pSpread);
// Make a Mask Bitmap
pMaskRegion->StartRender();
SourceItem->Render(pMaskRegion, ClipRegion, c_eLineAttrDragTextPos);
pMaskRegion->StopRender();
OILBitmap* pOilMaskBmp = pMaskRegion->ExtractBitmap();
TheBitmap = new KernelBitmap(pOilMaskBmp, TRUE);
delete pMaskRegion;
}
return BitmapDragInformation::GetSolidDragMask();
}
BOOL ScreenCamView::OnDrop(COleDataObject* pDataObject, DROPEFFECT dropEffect, CPoint point)
{
if (!m_DropFormatOK || pDataObject == NULL)
return FALSE;
// Document* pSelDoc = Document::GetSelected();
Document* pClipDoc = InternalClipboard::Instance();
if (pClipDoc != NULL)
{
Document::SetSelectedViewAndSpread(pClipDoc);
pClipDoc->ResetInsertionPosition();
pClipDoc->SetCurrent();
// If there is *still* a format on the external clip board we like, then it's ok to drop
CLIPFORMAT ClipFormat = ExternalClipboard::GetBestPasteFormat(pDataObject);
ExternalClipboard* pExtClipBoard = ExternalClipboard::GetExternalClipboard();
if (ClipFormat != 0 && pExtClipBoard !=NULL && pExtClipBoard->PrepareForOlePaste(pDataObject))
{
Document::SetSelectedViewAndSpread(GetDocument()->GetKernelDoc(),GetDocViewPtr());
DocView *pDocView = DocView::GetCurrent();
if (pDocView != NULL)
{
// Make the drop point a WinCoord so we can turn it into an oil coord
WinCoord DropPoint(point.x,point.y);
// Turn it into Oil coordinates...
OilCoord OilPos = DropPoint.ToOil(pDocView);
// Find the spread that contains the coord
Spread* pSpread = pDocView->FindEnclosingSpread(OilPos);
if (pSpread != NULL)
{
// First of all convert the OilCoord into device coords
DocCoord Centre = OilPos.ToDoc(pSpread, pDocView);
// Translate the coord to spread coords
pSpread->DocCoordToSpreadCoord(&Centre);
// 'Centre' now contains the centre point for the paste, in spread coords
TRY
{
// Wrap all this in a TRY/CATCH block so that if OLE throws a wobbly, we can
// ensure that the clipboard remains intacted on exit.
// Copy the selection to the drag'n'drop clipboard.
OpDescriptor* pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_PASTE);
ERROR3IF(!pOp, "No paste operation in ScreenCamView::OnDrop");
if (pOp != NULL)
{
Document::SetSelectedViewAndSpread(pClipDoc);
pClipDoc->SetCurrent();
pClipDoc->ResetInsertionPosition();
InsertionNode* pInsertNode = pClipDoc->GetInsertionPosition();
if (pInsertNode != NULL)
{
pInsertNode->UnlinkNodeFromTree();
delete pInsertNode;
pInsertNode = NULL;
}
Document::SetSelectedViewAndSpread(GetDocument()->GetKernelDoc(),GetDocViewPtr());
// create a param object that contains the centre point in the spread at which
// we would like the objects to be pasted
OpParamPasteAtPosition Param(pSpread,Centre);
// Call the paste op via its DoWithParams() funtion
pOp->Invoke(&Param);
}
}
CATCH_ALL(e)
{
if (m_ClipBoardSwapped = FALSE)
{
// TRACEUSER( "Markn", _T("Swapping back to clipboard doc (Catch in ScreenCamView::OnDrop())\n"));
InternalClipboard::Swap();
ExternalClipboard::UpdateSystemClipboard(TRUE);
}
THROW_LAST();
}
END_CATCH_ALL
}
