void ZDCCanvas_X_NonWindow::CopyFrom(ZDCState& ioState, const ZPoint& inDestLocation, ZRef<ZDCCanvas> inSourceCanvas, const ZDCState& inSourceState, const ZRect& inSourceRect)
{
ZRef<ZDCCanvas_X> sourceCanvasX = ZRefDynamicCast<ZDCCanvas_X>(inSourceCanvas);
ZAssertStop(kDebug_X, sourceCanvasX != nil);
if (!fDrawable || !sourceCanvasX->Internal_GetDrawable())
return;
SetupLock theSetupLock(this);
// We can (currently) only copy from one drawable to another if they're on the same display
// ZAssertStop(kDebug_X, fXServer == sourceCanvasX->fXServer);
ZRect destRect = inSourceRect + (ioState.fOrigin + inDestLocation - inSourceRect.TopLeft());
ZRect sourceRect = inSourceRect + inSourceState.fOrigin;
ZDCRgn realClip = this->Internal_CalcClipRgn(ioState);
fXServer->SetRegion(fGC, realClip.GetRegion());
++fChangeCount_Clip;
fXServer->SetFunction(fGC, GXcopy);
++fChangeCount_Mode;
fXServer->CopyArea(sourceCanvasX->Internal_GetDrawable(), fDrawable, fGC,
sourceRect.Left(), sourceRect.Top(),
sourceRect.Width(), sourceRect.Height(),
destRect.Left(), destRect.Top());
}
void ZDCCanvas_X_NonWindow::Scroll(ZDCState& ioState, const ZRect& inRect, ZCoord hDelta, ZCoord vDelta)
{
if (!fDrawable)
return;
SetupLock theSetupLock(this);
++fChangeCount_Clip;
ZPoint offset(hDelta, vDelta);
// destRgn is the pixels we want and are able to draw to.
ZDCRgn destRgn = ((ioState.fClip + ioState.fClipOrigin) & (inRect + ioState.fOrigin));
// srcRgn is the set of pixels we're want and are able to copy from.
ZDCRgn srcRgn = ((destRgn - offset) & (inRect + ioState.fOrigin));
// drawnRgn is the destination pixels that will be drawn by the CopyBits call, it's the srcRgn
// shifted back to the destination.
ZDCRgn drawnRgn = srcRgn + offset;
// invalidRgn is the destination pixels we wanted to draw but could not because they were
// outside the visRgn, or were in the excludeRgn
ZDCRgn invalidRgn = destRgn - drawnRgn;
// And set the clip (drawnRgn)
fXServer->SetRegion(fGC, drawnRgn.GetRegion());
++fChangeCount_Clip;
fXServer->SetFunction(fGC, GXcopy);
++fChangeCount_Mode;
ZRect drawnBounds = drawnRgn.Bounds();
fXServer->CopyArea(fDrawable, fDrawable, fGC,
drawnBounds.Left() - offset.h, drawnBounds.Top() - offset.v,
drawnBounds.Width(), drawnBounds.Height(),
drawnBounds.Left(), drawnBounds.Top());
}
bool ZUITextEngine::Click(ZPoint inHitPoint, const ZEvent_Mouse& inEvent)
{
size_t selectStart, selectLength;
this->GetSelection(selectStart, selectLength);
if (selectLength != 0)
{
size_t cursorOffset = this->PointToOffset(this->FromHost(inHitPoint));
if (cursorOffset >= selectStart && cursorOffset < selectStart + selectLength)
{
if (fHost->GetHostPane(this)->GetWindow()->WaitForMouse())
{
ZTuple theTuple = this->GetTuple(selectStart, selectLength);
if (ZDragInitiator* theDragInitiator = fHost->GetHostPane(this)->GetWindow()->CreateDragInitiator())
{
ZDC theDC = this->GetHostDC();
ZDCRgn hiliteRgn = theDC.GetClip() & this->GetTextRgn(selectStart, selectLength);
theDC.SetClip(hiliteRgn);
ZDCPixmap thePixmap;
ZPoint hiliteRgnSize = hiliteRgn.Bounds().Size();
if ((hiliteRgnSize.h * hiliteRgnSize.v) <= 90000)
{
ZDC_Off theOffDC(theDC, true);
this->DrawRange(theOffDC, selectStart, selectLength);
theOffDC.Sync();
thePixmap = theOffDC.GetPixmap(theOffDC.GetClip().Bounds());
}
ZPoint theOffset = hiliteRgn.Bounds().TopLeft();
hiliteRgn -= theOffset;
theDragInitiator->DoDrag(theTuple, fHost->GetHostPane(this)->ToGlobal(inHitPoint), this->FromHost(inHitPoint) - theOffset, theDragInitiator->OutlineRgn(hiliteRgn), thePixmap, hiliteRgn, this);
return true;
}
}
}
}
return false;
}
static bool sCheckPixel(const ZRef<ZDCCanvas>& inCanvas, ZDCState& ioState,
ZCoord inLocationH, ZCoord inLocationV, const ZRGBColor& inSeedColor, const ZDCRgn& inMaskRgn)
{
if (inMaskRgn.Contains(inLocationH, inLocationV))
{
// We've already visited this pixel.
return false;
}
if (inCanvas->GetPixel(ioState, inLocationH, inLocationV) != inSeedColor)
{
// This pixel is not the seed color.
return false;
}
return true;
}
void ZDCCanvas_X::FrameRegion(ZDCState& ioState, const ZDCRgn& inRgn)
{
if (!fDrawable)
return;
if (!ioState.fInk)
return;
if (ioState.fPenWidth <= 0)
return;
SetupLock theSetupLock(this);
if (ZDCRgn localRgn = this->Internal_CalcClipRgn(ioState) & ((inRgn - inRgn.Inset(ioState.fPenWidth, ioState.fPenWidth)) + ioState.fOrigin))
{
SetupInk theSetupInk(this, ioState);
ZRect localBounds = localRgn.Bounds();
fXServer->SetRegion(fGC, localRgn.GetRegion());
++fChangeCount_Clip;
fXServer->FillRectangle(fDrawable, fGC, localBounds.left, localBounds.top, localBounds.Width(), localBounds.Height());
}
}
ZDCRgn ZDragInitiator::OutlineRgn(const ZDCRgn& iRgn)
{
// Provides a place to do theme-sensitive outlining of regions (2 pixels on MacOS 8.5, 1 pixel just about everywhere else)
return iRgn - iRgn.Inset(2, 2);
}
void ZDCCanvas_X::DrawPixmap(ZDCState& ioState, const ZPoint& inLocation, const ZDCPixmap& inSourcePixmap, const ZDCPixmap* inMaskPixmap)
{
if (!fDrawable)
return;
if (!inSourcePixmap)
return;
ZRect realSourceBounds = inSourcePixmap.Size();
ZPoint realLocation = inLocation + ioState.fOrigin;
if (inMaskPixmap)
{
if (!*inMaskPixmap)
return;
SetupLock theSetupLock(this);
ZDCRgn sourceBoundsRgn = ZRect(realSourceBounds.Size());
ZDCRgn realClip = (this->Internal_CalcClipRgn(ioState) - realLocation) & sourceBoundsRgn;
if (realClip.IsEmpty())
return;
// Take a one bit copy of the mask
Pixmap monoPixmap = fXServer->CreateBitmapFromDCPixmap(fDrawable, *inMaskPixmap, realSourceBounds, false);
ZAssert(monoPixmap != None);
// Paint with zeroes the area of the mask that's not part of the clip, if any
if (ZDCRgn inverseClip = sourceBoundsRgn - realClip)
{
XGCValues values;
values.graphics_exposures = 0;
GC monoGC = fXServer->CreateGC(monoPixmap, GCGraphicsExposures, &values);
fXServer->SetRegion(monoGC, inverseClip.GetRegion());
fXServer->SetForeground(monoGC, 0);
fXServer->FillRectangle(monoPixmap, monoGC, 0, 0, realSourceBounds.Width(), realSourceBounds.Height());
fXServer->FreeGC(monoGC);
}
fXServer->SetFunction(fGC, GXcopy);
++fChangeCount_Mode;
fXServer->SetClipMask(fGC, monoPixmap);
fXServer->SetClipOrigin(fGC, realLocation.h, realLocation.v);
++fChangeCount_Clip;
fXServer->DrawDCPixmap(fDrawable, fGC, realLocation, inSourcePixmap, realSourceBounds);
fXServer->SetClipMask(fGC, None);
fXServer->SetClipOrigin(fGC, 0, 0);
fXServer->FreePixmap(monoPixmap);
}
else
{
SetupLock theSetupLock(this);
SetupClip theSetupClip(this, ioState);
if (theSetupClip.IsEmpty())
return;
fXServer->SetFunction(fGC, GXcopy);
++fChangeCount_Mode;
fXServer->DrawDCPixmap(fDrawable, fGC, realLocation, inSourcePixmap, realSourceBounds);
}
}