source/MyCarbonPrinting.c

/*
    File:       MyCarbonPrinting.c
    
    Description:Code that prints pictures via the new Carbon Print Manager.
 
    Author:     MC
 
    Copyright:  © Copyright 1999-2000 Apple Computer, Inc. All rights reserved.
    
    Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple Computer, Inc.
                ("Apple") in consideration of your agreement to the following terms, and your
                use, installation, modification or redistribution of this Apple software
                constitutes acceptance of these terms.  If you do not agree with these terms,
                please do not use, install, modify or redistribute this Apple software.
 
                In consideration of your agreement to abide by the following terms, and subject
                to these terms, Apple grants you a personal, non-exclusive license, under AppleÕs
                copyrights in this original Apple software (the "Apple Software"), to use,
                reproduce, modify and redistribute the Apple Software, with or without
                modifications, in source and/or binary forms; provided that if you redistribute
                the Apple Software in its entirety and without modifications, you must retain
                this notice and the following text and disclaimers in all such redistributions of
                the Apple Software.  Neither the name, trademarks, service marks or logos of
                Apple Computer, Inc. may be used to endorse or promote products derived from the
                Apple Software without specific prior written permission from Apple.  Except as
                expressly stated in this notice, no other rights or licenses, express or implied,
                are granted by Apple herein, including but not limited to any patent rights that
                may be infringed by your derivative works or by other works in which the Apple
                Software may be incorporated.
 
                The Apple Software is provided by Apple on an "AS IS" basis.  APPLE MAKES NO
                WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
                WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
                COMBINATION WITH YOUR PRODUCTS.
 
                IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
                CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
                GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
                OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
                (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
                ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
                
    Change History (most recent first):
 
*/
 
#define TARGET_API_MAC_CARBON 1
 
#include <QuickTimeComponents.h>
#include <Windows.h>
#include "MyCarbonPrinting.h"
#include "Defines.h"
#include "Structs.h"
#include "GraphicImportDrawCode.h"
#include "LinkedList.h"
#include "DisplayErrorAlert.h"
 
// Globals
extern PreferencesHandle            gPreferences;
 
static void PMRectToRect (PMRect * pRect, Rect * rRect) {
    rRect->top = (short)pRect->top;
    rRect->bottom = (short)pRect->bottom;
    rRect->left = (short)pRect->left;
    rRect->right = (short)pRect->right;
}
 
static UInt32 CountRectsInRect (Rect * pageRect, Rect * imageRect) {
    UInt32                      count;
    Rect                        tempPageRect,
                                tempImageRect;
    UInt32                      pagesAcross,
                                pagesDown;
    tempPageRect = *pageRect;
    tempImageRect = *imageRect;
 
    OffsetRect (&tempPageRect, (short)-tempPageRect.left, (short)-tempPageRect.top);
    OffsetRect (&tempImageRect, (short)-tempImageRect.left, (short)-tempImageRect.top);
 
    pagesAcross = (UInt32)((tempImageRect.right + (tempPageRect.right - 1)) / tempPageRect.right);
    pagesDown = (UInt32)((tempImageRect.bottom + (tempPageRect.bottom - 1)) / tempPageRect.bottom);
    count = pagesAcross * pagesDown;
 
    return count;
}
 
static OSStatus MakeDefaultPageFormatObject (PMPageFormat * pageFormat) {
    OSStatus                err;
 
    //  Set up a valid PageFormat object.
    if (*pageFormat == kPMNoPageFormat) {
        err = PMNewPageFormat (pageFormat);
 
        if ((err == noErr) && (*pageFormat != kPMNoPageFormat))
            err = PMDefaultPageFormat (*pageFormat);
    } else {
        err = PMValidatePageFormat (*pageFormat, kPMDontWantBoolean);
    }
 
    return err;
}
 
static OSErr TileRectsInRect (Rect * pageRect, Rect * imageRect, myListPtr * overlapList) {
    Rect                        tempImageRect,
                                tempPageRect,
                                overlappingRect;
    Rect *                      rectPtr;
    Boolean                     overlap;
    OSErr                       err;
 
    tempImageRect = *imageRect;
    tempPageRect = *pageRect;
 
    do {
        do {
            overlap = SectRect (&tempImageRect, &tempPageRect, &overlappingRect);
 
            if (overlap) {
                rectPtr = (Rect *)NewPtr (sizeof(Rect));
                err = MemError ();
 
                if (err == noErr) {
                    *rectPtr = overlappingRect;
                    err = AppendToList (rectPtr, overlapList);
                    OffsetRect (&tempPageRect, tempPageRect.right, 0);
                }
            }
        } while (overlap == true);
 
        tempPageRect.right = pageRect->right;
        tempPageRect.left = pageRect->left;
        OffsetRect (&tempPageRect, 0, tempPageRect.bottom);
        overlap = SectRect (&tempImageRect, &tempPageRect, &overlappingRect);
    } while (overlap == true && err == noErr);
 
    return err;
}
 
/*------------------------------------------------------------------------------
    Function:   DetermineNumberOfPagesInDoc
    Parameters:
        pageRect    - size of the document, from PMGetAdjustedPageRect
    Description:
        Compares the size of the document with the number of pages in the
        PageFormat object to calculate the number of pages required to print
        the document.
------------------------------------------------------------------------------*/
static UInt32 DetermineNumberOfPagesInDoc (PMRect pageRect, WindowPtr theWindow, myListPtr * rectsList) {
#pragma unused (pageRect)
    WindowInfoHandle            winInfo;
    SInt8                       hState;
    UInt32                      pageCount;
    Rect                        pRect;
    OSErr                       err;
 
    pageCount = 0;
 
    if (theWindow != nil) {
        winInfo = (WindowInfoHandle)GetWRefCon (theWindow);
    }
 
    if (winInfo != nil && (**winInfo).sig == kMySig) {
        hState = HGetState ((Handle)winInfo);
        HLock ((Handle)winInfo);
        PMRectToRect (&pageRect, &pRect);
        pageCount = CountRectsInRect (&pRect, &(**winInfo).winNatGraphicBoundsRect);
 
        if (pageCount >= 1) {
            err = TileRectsInRect (&pRect, &(**winInfo).winNatGraphicBoundsRect, rectsList);
        }
 
        HSetState ((Handle)winInfo, hState);
    }
 
    return pageCount;
}
 
static OSStatus DrawIntoPrintPort (WindowInfoHandle winInfo, Rect * sourceRect) {
    OSStatus                    err;
    GraphicsImportComponent     graphicImporter;
    Rect                        tempRect;
 
    if ((**winInfo).winDataHandle != nil) {
        graphicImporter = OpenDefaultComponent (GraphicsImporterComponentType, (**winInfo).winGraphicType);
 
        if (graphicImporter != nil) {
            err = GraphicsImportSetDataHandle (graphicImporter, (**winInfo).winDataHandle);
        }
    } else {
        err = GetGraphicsImporterForFile (&(**winInfo).winSpec, &graphicImporter);
    }
 
    if (err == noErr) {
        err = GraphicsImportGetSourceRect (graphicImporter, &tempRect);
    }
 
    if (err == noErr) {
        err = GraphicsImportSetSourceRect (graphicImporter, sourceRect);
    }
 
    if (err == noErr) {
        OffsetRect (&tempRect, (short)-sourceRect->left, (short)-sourceRect->top);
        err = GraphicsImportSetBoundsRect (graphicImporter, &tempRect);
    }
 
    if (err == noErr) {
        (void)GraphicsImportSetQuality ((**winInfo).winGraphicImporter, (**gPreferences).quality);
    }
 
    if (err == noErr) {
        err = GraphicsImportDraw (graphicImporter);
    }
 
    if (graphicImporter != nil) {
        (void)CloseComponent (graphicImporter);
    }
 
    return err;
}
 
#define PREVIEWPRINTING 0
 
static OSErr PrintPage (WindowPtr theWindow, PMRect pageRect, PMPrintContext printingPort, UInt32 pageNumber, Rect * printRect) {
#pragma unused (pageNumber)
    OSStatus                    err;
    WindowInfoHandle            winInfo;
    SInt8                       hState;
    Rect                        pRect;
    PixMapHandle                pixMap;
#if PREVIEWPRINTING
    WindowPtr                   testWindow;
    GrafPtr                     oldPort;
    Rect                        winBounds;
#pragma unused (printingPort)
#else
    GrafPtr                     pmPort;
#endif
 
    if (theWindow != nil) {
        winInfo = (WindowInfoHandle)GetWRefCon (theWindow);
    }
 
    if (winInfo != nil && (**winInfo).sig == kMySig) {
        hState = HGetState ((Handle)winInfo);
        HLock ((Handle)winInfo);
 
        PMRectToRect (&pageRect, &pRect);
        pRect.right = (short)(printRect->right - printRect->left);
        pRect.bottom = (short)(printRect->bottom - printRect->top);
 
        if ((**winInfo).winGWorld != nil) {
            pixMap = GetGWorldPixMap ((**winInfo).winGWorld);
            if (LockPixels (pixMap)) {
#if PREVIEWPRINTING
                GetPort (&oldPort);
                testWindow = NewWindow(nil, &pRect, "\ptest", true, 0, (WindowPtr)-1L, true, 0);
                SetPort (GetWindowPort(testWindow));
                GetWindowPortBounds (testWindow, &winBounds);
                CopyBits (GetPortBitMapForCopyBits ((**winInfo).winGWorld),
                            GetPortBitMapForCopyBits (GetWindowPort(testWindow)),
                            printRect, &pRect, srcCopy, nil);
                while (!Button ()) {}
 
                DisposeWindow (testWindow);
                SetPort (oldPort);
#else
                PMGetGrafPtr (printingPort, &pmPort);
                CopyBits ((BitMap*)*GetPortPixMap ((**winInfo).winGWorld),
                            (BitMap*)*GetPortPixMap (pmPort),
                            printRect, &pRect, srcCopy, nil);
#endif
                UnlockPixels (pixMap);
            } else {
                DisposeGWorld ((**winInfo).winGWorld);
                (**winInfo).winGWorld = nil;
                err = DrawIntoPrintPort (winInfo, printRect);
            }
        } else {
#if PREVIEWPRINTING
            GetPort (&oldPort);
            testWindow = NewWindow(nil, &pRect, "\ptest", true, 0, (WindowPtr)-1L, true, 0);
            SetPort (GetWindowPort(testWindow));
            GetWindowPortBounds (testWindow, &winBounds);
            err = DrawIntoPrintPort (winInfo, printRect);
            while (!Button ()) {}
            DisposeWindow (testWindow);
            SetPort (oldPort);
#else
            err = DrawIntoPrintPort (winInfo, printRect );
#endif
        }
 
        HSetState ((Handle)winInfo, hState);
    }
 
    return (OSErr)err;
}
 
static OSErr PrintWindow (WindowPtr theWindow, PMPageFormat * pageFormat, PMPrintSettings * printSettings) {
    OSStatus                    err,
                                printError;
    PMRect                      pageRect;
    PMPrintContext              thePrintingPort;
    UInt32                      realNumberOfPagesinDoc,
                                pageNumber,
                                firstPage,
                                lastPage;
    myListPtr                   rectsList;
    Rect *                      printRect;
 
    thePrintingPort = kPMNoReference;
 
    //  PMGetAdjustedPageRect returns the page size taking into account rotation,
    //  resolution and scaling settings.  DetermineNumberOfPagesInDoc returns the
    //  number of pages required to print the document.
    err = PMGetAdjustedPageRect (*pageFormat, &pageRect);
 
    if (err == noErr) {
        rectsList = nil;
        realNumberOfPagesinDoc = DetermineNumberOfPagesInDoc (pageRect, theWindow, &rectsList);
    }
 
    //  Get the user's selection for first and last pages
    if (err == noErr) {
        err = PMGetFirstPage (*printSettings, &firstPage);
        if (err == noErr) {
            err = PMGetLastPage (*printSettings, &lastPage);
        }
    }
 
    //  Check that the selected page range does not go beyond the actual
    //  number of pages in the document.
    if (err == noErr) {
        if (realNumberOfPagesinDoc < lastPage) {
            lastPage = realNumberOfPagesinDoc;
        }
    }
 
    //  NOTE:  We don't have to worry about the number of copies.  The Printing
    //  Manager handles this.  So we just iterate through the document from the
    //  first page to be printed, to the last.
    if (err == noErr) {
        //  Establish a printing port for drawing.
        err = PMBeginDocument (*printSettings, *pageFormat, &thePrintingPort);
        if ((err == noErr) && (thePrintingPort != kPMNoReference)) {
            //  Print the selected range of pages in the document.
            pageNumber = firstPage;
            while ((pageNumber <= lastPage) && (err == noErr) && (PMError () == noErr)) {
                //  NOTE:  We don't have to deal with the old Printing Manager's
                //  128-page boundary limit anymore.
                //  Establish a printing page.
                err = PMBeginPage (thePrintingPort, nil);
 
                if (err == noErr) {
                    //  Draw the page.
                    printRect = (Rect *)GetItemNumFromList (pageNumber - 1, rectsList);
                    err = PrintPage (theWindow, pageRect, thePrintingPort, pageNumber, printRect);
                }
                //  Close the page.  Have to call PMEndPage if we called PMBeginPage
                err = PMEndPage (thePrintingPort);
 
                if (err == noErr) {
                    //  And loop.
                    pageNumber++;
                }
            }
 
            // Close the printing port
            (void)PMEndDocument (thePrintingPort);
        }
    }
 
    //  Only report a printing error once we have completed the print loop. This
    //  ensures that every PMBeginXXX call is followed by a matching PMEndXXX
    //  call, so the Printing Manager can release all temporary memory and close
    //  properly.
    printError = PMError ();
 
    if (printError != noErr) {
        DisplayErrorAlert ((OSErr)printError);
    }
 
    do {
        printRect = (Rect *)GetItemNumFromList (0, rectsList);
        DeleteHeadFromList (&rectsList);
    } while (printRect != nil);
 
    return (OSErr)err;
}
 
/*------------------------------------------------------------------------------
    Function:
        FlattenAndSavePageFormat
    Parameters:
        pageFormat  -   a PageFormat object
    Description:
        Flattens a PageFormat object so it can be saved with the document.
        Assumes caller passes a validated PageFormat object.
------------------------------------------------------------------------------*/
static OSStatus FlattenAndSavePageFormat (PMPageFormat pageFormat, Handle * flatFormatHandle) {
    OSStatus                err;
 
    //  Flatten the PageFormat object to memory.
    err = PMFlattenPageFormat (pageFormat, flatFormatHandle);
 
    return err;
}
 
/*------------------------------------------------------------------------------
    Function:   LoadAndUnflattenPageFormat
    Parameters:
        pageFormat  - PageFormat object read from document file
    Description:
        Gets flattened PageFormat data from the document and returns a PageFormat
        object.
------------------------------------------------------------------------------*/
static OSStatus LoadAndUnflattenPageFormat (PMPageFormat * pageFormat, Handle flatFormatHandle) {
    OSStatus                err;
 
    //  Convert the PageFormat flattened data into a PageFormat object.
    err = PMUnflattenPageFormat (flatFormatHandle, pageFormat);
    
    return err;
}
 
static OSStatus FlattenAndSavePrintSettings (PMPrintSettings printSettings, Handle * flatFormatHandle) {
    OSStatus                err;
 
    //  Flatten the PrintSettings object to memory.
    err = PMFlattenPrintSettings (printSettings, flatFormatHandle);
 
    return err;
}
 
static OSStatus LoadAndUnflattenPrintSettings (PMPrintSettings * printSettings, Handle flatFormatHandle) {
    OSStatus                err;
 
    //  Convert the PrintSettings flattened data into a PrintSettings object.
    err = PMUnflattenPrintSettings (flatFormatHandle, printSettings);
    
    return err;
}
 
/*------------------------------------------------------------------------------
    Function:   DoPageSetupDialog
    Parameters:
        pageFormat  -   a PageFormat object addr
    Description:
        If the caller passes in an empty PageFormat object, create a new one,
        otherwise validate the one provided by the caller.
        Invokes the Page Setup dialog and checks for Cancel.
        Flattens the PageFormat object so it can be saved with the document.
        Note that the PageFormat object is modified by this function.
------------------------------------------------------------------------------*/
static OSErr DoPageSetupDialog (PMPageFormat * pageFormat, Handle * flatFormatHandle) {
    OSStatus                err;
    Boolean                 accepted;
 
    err = MakeDefaultPageFormatObject (pageFormat);
 
    //  Display the Page Setup dialog.
    if (err == noErr) {
        err = PMPageSetupDialog (*pageFormat, &accepted);
        if (!accepted) {
            err = kPMCancel;        // user clicked Cancel button
        }
    }
 
    //  If the user did not cancel, flatten and save the PageFormat object
    //  with our document.
    if (err == noErr) {
        err = FlattenAndSavePageFormat (*pageFormat, flatFormatHandle);
    }
 
    return (OSErr)err;
}
 
/*------------------------------------------------------------------------------
    Function:   DoPrintDialog
    Parameters:
        pageFormat      -   a PageFormat object addr
        printSettings   -   a PrintSettings object addr
    Description:
        If the caller passes an empty PrintSettings object, create a new one,
        otherwise validate the one provided by the caller.
        Invokes the Print dialog and checks for Cancel.
        Note that the PrintSettings object is modified by this function.
------------------------------------------------------------------------------*/
static OSErr DoPrintDialog (PMPageFormat * pageFormat, PMPrintSettings * printSettings) {
    OSStatus        err;
    Boolean         accepted;
    
    //  In this sample code the caller provides a valid PageFormat reference but in
    //  your application you may want to load and unflatten the PageFormat object
    //  that was saved at PageSetup time.  See LoadAndUnflattenPageFormat below.
    
    //  Set up a valid PrintSettings object.
    if (*printSettings == kPMNoPrintSettings) {
        err = PMNewPrintSettings (printSettings);
        
        if ((err == noErr) && (*printSettings != kPMNoPrintSettings))
            err = PMDefaultPrintSettings (*printSettings);
    } else {
        err = PMValidatePrintSettings (*printSettings, kPMDontWantBoolean);
    }
    
    //  Display the Print dialog.
    if (err == noErr) {
        err = PMPrintDialog (*printSettings, *pageFormat, &accepted);
        if (!accepted) {
            err = kPMCancel;        // user clicked Cancel button
        }
    }
        
    return (OSErr)err;
}
 
OSErr HandlePageSetupDialog (WindowPtr theWindow) {
    OSStatus                    err;
    WindowInfoHandle            winInfo;
    SInt8                       hState;
    PMPageFormat                pageFormat;
 
    err = PMBegin ();
 
    if (err == noErr) {
        if (theWindow != nil) {
            winInfo = (WindowInfoHandle)GetWRefCon (theWindow);
        }
 
        if (winInfo != nil && (**winInfo).sig == kMySig) {
            hState = HGetState ((Handle)winInfo);
            HLock ((Handle)winInfo);
 
            if ((**winInfo).flatPageFormatHandle == nil) {
                pageFormat = kPMNoPageFormat;
            } else {
                err = LoadAndUnflattenPageFormat (&pageFormat, (**winInfo).flatPageFormatHandle);
            }
 
            err = DoPageSetupDialog (&pageFormat, &(**winInfo).flatPageFormatHandle);
            HSetState ((Handle)winInfo, hState);
        }
    }
 
    (void)PMEnd ();
 
    return (OSErr)err;
}
 
OSErr HandlePrint (WindowPtr theWindow) {
    OSStatus                    err;
    WindowInfoHandle            winInfo;
    SInt8                       hState;
    PMPageFormat                pageFormat;
    PMPrintSettings             printSettings;
 
    err = (OSErr)PMBegin ();
 
    if (err == noErr) {
        if (theWindow != nil) {
            winInfo = (WindowInfoHandle)GetWRefCon (theWindow);
        }
 
        if (winInfo != nil && (**winInfo).sig == kMySig) {
            hState = HGetState ((Handle)winInfo);
            HLock ((Handle)winInfo);
 
            if ((**winInfo).flatPageFormatHandle == nil) {
                // Just use the default Page Setup options
                pageFormat = kPMNoPageFormat;
                err = (OSErr)MakeDefaultPageFormatObject (&pageFormat);
 
                if (err == noErr) {
                    err = (OSErr)FlattenAndSavePageFormat (pageFormat, &(**winInfo).flatPageFormatHandle);
                }
            } else {
                err = (OSErr)LoadAndUnflattenPageFormat (&pageFormat, (**winInfo).flatPageFormatHandle);
            }
 
            if ((**winInfo).flatPrintSettingsHandle != nil) {
                err = (OSErr)LoadAndUnflattenPrintSettings (&printSettings, (**winInfo).flatPrintSettingsHandle);
            } else {
                printSettings = kPMNoPrintSettings;
            }
 
            err = DoPrintDialog (&pageFormat, &printSettings);
 
            //  If the user did not cancel, flatten and save the PrintSettings object
            //  with our document.
            if (err == noErr) {
                err = (OSErr)FlattenAndSavePrintSettings (printSettings, &(**winInfo).flatPrintSettingsHandle);
            }
 
            if (err == noErr) {
                err = PrintWindow (theWindow, &pageFormat, &printSettings);
            }
 
            HSetState ((Handle)winInfo, hState);
        }
    }
 
    (void)PMEnd ();
 
    return (OSErr)err;
}


Copyright © 2003 Apple Computer, Inc. All Rights Reserved. Terms of Use | Privacy Policy | Updated: 2003-01-14