gecko-dev/lib/mac/UserInterface/CGWorld.cp
2004-04-25 16:36:22 +00:00

277 lines
8.4 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
//
// This is a replacement class for PowerPlant's LGWorld. It allows for the
// resizing and reorienting of the offscreen world, which LGWorld won't let
// you do. Because the CGWorld can be updated, the pixmap can be made
// purgeable by passing in the pixPurge flag in the constructor. LGWorld
// would let you do this, however, if the pixels ever got purged you'd be
// completely hosed.
//
// This class has ben submitted to metrowerks for a potential replacement
// of LGWorld. In the event that metrowerks adds the extended functionality
// that CGWorld offers, we can make this module obsolete.
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
#ifdef PowerPlant_PCH
#include PowerPlant_PCH
#endif
#include "CGWorld.h"
#include "UGraphicGizmos.h"
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥ CGWorld
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
CGWorld::CGWorld(
const Rect& inBounds,
Int16 inPixelDepth,
GWorldFlags inFlags,
CTabHandle inCTableH,
GDHandle inGDeviceH)
{
::GetGWorld(&mSavePort, &mSaveDevice);
mMacGWorld = nil;
mBounds = inBounds;
mDepth = inPixelDepth;
// NewGWorld interprets the bounds in global coordinates
// when specifying a zero pixel depth. It uses the maximum
// depth of all screen devices intersected by the bounds.
Rect gwRect = inBounds;
if (inPixelDepth == 0)
{
LocalToGlobal(&topLeft(gwRect));
LocalToGlobal(&botRight(gwRect));
}
mGWorldStatus = ::NewGWorld(&mMacGWorld, inPixelDepth, &gwRect,
inCTableH, inGDeviceH, inFlags);
ThrowIfOSErr_(mGWorldStatus);
ThrowIfNil_(mMacGWorld);
// Set up coordinates and erase pixels in GWorld
::SetGWorld(mMacGWorld, nil);
::SetOrigin(mBounds.left, mBounds.top);
::LockPixels(::GetGWorldPixMap(mMacGWorld));
::EraseRect(&mBounds);
::UnlockPixels(::GetGWorldPixMap(mMacGWorld));
::SetGWorld(mSavePort, mSaveDevice);
}
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥ CGWorld
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// This does not initialize the GWorld. Must be overriden.
CGWorld::CGWorld()
{
}
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥ ~CGWorld
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
CGWorld::~CGWorld()
{
if (mMacGWorld != nil)
::DisposeGWorld(mMacGWorld);
}
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥ BeginDrawing
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
Boolean CGWorld::BeginDrawing(void)
{
Boolean bReadyToDraw = false;
// The mac GWolrd will be inconsistent if a previous call to UpdateGWorld()
// has failed. We get one more shot a fixing that here before we draw.
if (!IsConsistent())
AdjustGWorld(mBounds);
if (IsConsistent())
{
if (!::LockPixels(::GetGWorldPixMap(mMacGWorld)))
{
// This means we're consistentlty sized and oriented, but our pixMap
// data has been purged.
AdjustGWorld(mBounds);
if (IsConsistent())
bReadyToDraw = ::LockPixels(::GetGWorldPixMap(mMacGWorld));
}
else
bReadyToDraw = true;
}
if (bReadyToDraw)
{
::GetGWorld(&mSavePort, &mSaveDevice);
::SetGWorld(mMacGWorld, nil);
}
return bReadyToDraw;
}
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥ EndDrawing
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
void CGWorld::EndDrawing(void)
{
Assert_(IsConsistent()); // You should have noticed that
// BeginDrawing() returned false
::UnlockPixels(::GetGWorldPixMap(mMacGWorld));
::SetGWorld(mSavePort, mSaveDevice);
}
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥ CopyImage
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
void CGWorld::CopyImage(
GrafPtr inDestPort,
const Rect& inDestRect,
Int16 inXferMode,
RgnHandle inMaskRegion)
{
::CopyBits(&((GrafPtr)mMacGWorld)->portBits,
&inDestPort->portBits,
&mBounds, &inDestRect, inXferMode, inMaskRegion);
}
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥ SetBounds
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
void CGWorld::SetBounds(const Rect &inBounds)
{
if (::EqualRect(&inBounds, &mBounds))
return;
UpdateBounds(inBounds);
// Note that even if we're not consistent, we still remember the bounds so that
// the next time through BeginDrawing() we can attempt to realloc for the
// size it's supposed to be.
mBounds = inBounds;
// We've reallocted successfully. Now lets get the origin set properly.
if (IsConsistent())
UpdateOrigin(topLeft(mBounds));
}
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥ AdjustGWorld
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
void CGWorld::AdjustGWorld(const Rect& inBounds)
{
UpdateBounds(inBounds);
if (IsConsistent())
UpdateOrigin(topLeft(inBounds));
}
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥ UpdateBounds
//
// Internal method which is called when the offscreen world needs to change
// it's dimensions.
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
void CGWorld::UpdateBounds(const Rect& inBounds)
{
Rect theNewBounds;
if (mDepth == 0)
{
theNewBounds = inBounds;
::LocalToGlobal(&topLeft(theNewBounds));
::LocalToGlobal(&botRight(theNewBounds));
}
else
theNewBounds = inBounds;
GWorldFlags theFlags = ::UpdateGWorld(&mMacGWorld, mDepth, &theNewBounds, NULL, NULL, 0);
if (theFlags & gwFlagErr)
mGWorldStatus = ::QDError();
else
mGWorldStatus = noErr;
}
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥ UpdateOrigin
//
// Internal method in which the origin on the offscreen world needs to be
// offset to match the on-screen representation.
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
void CGWorld::UpdateOrigin(const Point& inOrigin)
{
::GetGWorld(&mSavePort, &mSaveDevice);
::SetGWorld(mMacGWorld, nil);
::SetOrigin(inOrigin.h, inOrigin.v);
::SetGWorld(mSavePort, mSaveDevice);
}
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
// ¥
// ÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑÑ
CSharedWorld::CSharedWorld(
const Rect& inFrame,
Int16 inDepth,
GWorldFlags inFlags)
: CGWorld(inFrame, inDepth, inFlags)
{
}