office-gobmx/sd/source/ui/tools/PreviewRenderer.cxx
Rüdiger Timm 09a8257856 INTEGRATION: CWS components1 (1.10.12); FILE MERGED
2007/01/25 15:28:11 af 1.10.12.3: RESYNC: (1.11-1.12); FILE MERGED
2006/11/21 16:24:16 af 1.10.12.2: RESYNC: (1.10-1.11); FILE MERGED
2006/09/28 12:31:47 af 1.10.12.1: #i68075# Fixed resync problems.
2007-04-03 15:24:09 +00:00

507 lines
15 KiB
C++

/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: PreviewRenderer.cxx,v $
*
* $Revision: 1.13 $
*
* last change: $Author: rt $ $Date: 2007-04-03 16:24:09 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sd.hxx"
#include "PreviewRenderer.hxx"
#include "DrawDocShell.hxx"
#include "drawdoc.hxx"
#include "drawview.hxx"
#include "sdpage.hxx"
#include "ViewShell.hxx"
#include <vcl/virdev.hxx>
#include <svx/svdpagv.hxx>
#include <svx/svdoutl.hxx>
#include <svx/eeitem.hxx>
#include <svx/editstat.hxx>
#include <tools/link.hxx>
#include <vcl/svapp.hxx>
namespace sd {
const int PreviewRenderer::snSubstitutionTextSize = 11;
const int PreviewRenderer::snFrameWidth = 1;
PreviewRenderer::PreviewRenderer (OutputDevice* pTemplate)
: mpPreviewDevice (new VirtualDevice()),
mpView(NULL),
mpDocShellOfView(NULL),
mnWidthOfView(0),
maFrameColor (svtools::ColorConfig().GetColorValue(
svtools::DOCBOUNDARIES).nColor)
{
if (pTemplate != NULL)
{
mpPreviewDevice->SetDigitLanguage (pTemplate->GetDigitLanguage());
mpPreviewDevice->SetBackground(pTemplate->GetBackground());
}
else
mpPreviewDevice->SetBackground(Wallpaper(COL_WHITE));
}
PreviewRenderer::~PreviewRenderer (void)
{
if (mpDocShellOfView != NULL)
EndListening (*mpDocShellOfView);
}
Image PreviewRenderer::RenderPage (
const SdPage* pPage,
int nWidth,
const String& rSubstitutionText)
{
if (pPage != NULL)
{
Size aPageModelSize (pPage->GetSize());
double nAspectRatio (
double(aPageModelSize.Width()) / double(aPageModelSize.Height()));
int nHeight = (int)((nWidth - 2*snFrameWidth) / nAspectRatio
+ 2*snFrameWidth + 0.5);
return RenderPage (pPage, Size(nWidth,nHeight), rSubstitutionText);
}
else
return Image();
}
Image PreviewRenderer::RenderPage (
const SdPage* pPage,
Size aPixelSize,
const String& rSubstitutionText)
{
Image aPreview;
if (pPage != NULL)
{
try
{
if (Initialize (pPage, aPixelSize))
{
PaintPage (pPage);
PaintSubstitutionText (rSubstitutionText);
PaintFrame();
Size aSize (mpPreviewDevice->GetOutputSizePixel());
aPreview = mpPreviewDevice->GetBitmap (
mpPreviewDevice->PixelToLogic(Point(0,0)),
mpPreviewDevice->PixelToLogic(aSize));
Cleanup();
}
}
catch (const com::sun::star::uno::Exception&)
{
OSL_TRACE("PreviewRenderer::RenderPage: caught exception");
}
}
return aPreview;
}
Image PreviewRenderer::RenderSubstitution (
const Size& rPreviewPixelSize,
const String& rSubstitutionText)
{
Image aPreview;
try
{
// Set size.
mpPreviewDevice->SetOutputSizePixel(rPreviewPixelSize);
// Adjust contrast mode.
bool bUseContrast = Application::GetSettings().GetStyleSettings().
GetHighContrastMode();
mpPreviewDevice->SetDrawMode (bUseContrast
? ViewShell::OUTPUT_DRAWMODE_CONTRAST
: ViewShell::OUTPUT_DRAWMODE_COLOR);
// Set a map mode makes a typical substitution text completely
// visible.
MapMode aMapMode (mpPreviewDevice->GetMapMode());
aMapMode.SetMapUnit(MAP_100TH_MM);
double nFinalScale (25.0 * rPreviewPixelSize.Width() / 28000.0);
aMapMode.SetScaleX(nFinalScale);
aMapMode.SetScaleY(nFinalScale);
aMapMode.SetOrigin(mpPreviewDevice->PixelToLogic(
Point(snFrameWidth,snFrameWidth),aMapMode));
mpPreviewDevice->SetMapMode (aMapMode);
// Clear the background.
Rectangle aPaintRectangle (
Point(0,0),
mpPreviewDevice->GetOutputSizePixel());
mpPreviewDevice->EnableMapMode(FALSE);
mpPreviewDevice->SetLineColor();
svtools::ColorConfig aColorConfig;
mpPreviewDevice->SetFillColor(aColorConfig.GetColorValue(svtools::DOCCOLOR).nColor);
mpPreviewDevice->DrawRect (aPaintRectangle);
mpPreviewDevice->EnableMapMode(TRUE);
// Paint substitution text and a frame around it.
PaintSubstitutionText (rSubstitutionText);
PaintFrame();
Size aSize (mpPreviewDevice->GetOutputSizePixel());
aPreview = mpPreviewDevice->GetBitmap (
mpPreviewDevice->PixelToLogic(Point(0,0)),
mpPreviewDevice->PixelToLogic(aSize));
}
catch (const com::sun::star::uno::Exception&)
{
OSL_TRACE("PreviewRenderer::RenderPage: caught exception");
}
return aPreview;
}
bool PreviewRenderer::Initialize (
const SdPage* pPage,
const Size& rPixelSize)
{
bool bSuccess = false;
do
{
if (pPage == NULL)
break;
SdrModel* pModel = pPage->GetModel();
if (pModel == NULL)
break;
SetupOutputSize (pPage, rPixelSize);
SdDrawDocument* pDocument
= static_cast<SdDrawDocument*>(pPage->GetModel());
DrawDocShell* pDocShell = pDocument->GetDocSh();
// Create view
ProvideView (pDocShell);
if (mpView.get() == NULL)
break;
// Adjust contrast mode.
bool bUseContrast = Application::GetSettings().GetStyleSettings().
GetHighContrastMode();
mpPreviewDevice->SetDrawMode (bUseContrast
? ViewShell::OUTPUT_DRAWMODE_CONTRAST
: ViewShell::OUTPUT_DRAWMODE_COLOR);
mpPreviewDevice->SetSettings(Application::GetSettings());
// Tell the view to show the given page.
SdPage* pNonConstPage = const_cast<SdPage*>(pPage);
if (pPage->IsMasterPage())
{
mpView->ShowSdrPage(mpView->GetModel()->GetMasterPage(pPage->GetPageNum()));
}
else
{
mpView->ShowSdrPage(pNonConstPage);
}
// Make sure that a page view exists.
SdrPageView* pPageView = mpView->GetSdrPageView();
if (pPageView == NULL)
break;
// Set background color of page view and outliner.
svtools::ColorConfig aColorConfig;
pPageView->SetApplicationBackgroundColor(
pPage->GetBackgroundColor(pPageView));
SdrOutliner& rOutliner (pDocument->GetDrawOutliner(NULL));
rOutliner.SetBackgroundColor(pPage->GetBackgroundColor(pPageView));
rOutliner.SetDefaultLanguage(pDocument->GetLanguage(EE_CHAR_LANGUAGE));
mpView->SetApplicationBackgroundColor(
Color(aColorConfig.GetColorValue(svtools::APPBACKGROUND).nColor));
bSuccess = true;
}
while (false);
return bSuccess;
}
void PreviewRenderer::Cleanup (void)
{
mpView->HideSdrPage();
}
void PreviewRenderer::PaintPage (const SdPage* pPage)
{
// Paint the page.
Rectangle aPaintRectangle (Point(0,0), pPage->GetSize());
Region aRegion (aPaintRectangle);
// Turn off online spelling and redlining.
SdrOutliner* pOutliner = NULL;
ULONG nOriginalControlWord = 0;
if (mpDocShellOfView!=NULL && mpDocShellOfView->GetDoc()!=NULL)
{
pOutliner = &mpDocShellOfView->GetDoc()->GetDrawOutliner();
nOriginalControlWord = pOutliner->GetControlWord();
pOutliner->SetControlWord(
(nOriginalControlWord & ~EE_CNTRL_ONLINESPELLING) | EE_CNTRL_NOREDLINES);
}
try
{
mpView->CompleteRedraw (mpPreviewDevice.get(), aRegion);
}
catch (const ::com::sun::star::uno::Exception&)
{
OSL_TRACE("PreviewRenderer::PaintPage: caught exception");
}
// Restore the previous online spelling and redlining states.
if (pOutliner != NULL)
pOutliner->SetControlWord(nOriginalControlWord);
}
void PreviewRenderer::PaintSubstitutionText (const String& rSubstitutionText)
{
if (rSubstitutionText.Len() > 0)
{
// Set the font size.
const Font& rOriginalFont (mpPreviewDevice->GetFont());
Font aFont (mpPreviewDevice->GetSettings().GetStyleSettings().GetAppFont());
sal_Int32 nHeight (mpPreviewDevice->PixelToLogic(Size(0,snSubstitutionTextSize)).Height());
aFont.SetHeight(nHeight);
mpPreviewDevice->SetFont (aFont);
// Paint the substitution text.
Rectangle aTextBox (
Point(0,0),
mpPreviewDevice->PixelToLogic(
mpPreviewDevice->GetOutputSizePixel()));
USHORT nTextStyle =
TEXT_DRAW_CENTER
| TEXT_DRAW_VCENTER
| TEXT_DRAW_MULTILINE
| TEXT_DRAW_WORDBREAK;
mpPreviewDevice->DrawText (aTextBox, rSubstitutionText, nTextStyle);
// Restore the font.
mpPreviewDevice->SetFont (rOriginalFont);
}
}
void PreviewRenderer::PaintFrame (void)
{
// Paint a frame arround the preview.
Rectangle aPaintRectangle (
Point(0,0),
mpPreviewDevice->GetOutputSizePixel());
mpPreviewDevice->EnableMapMode (FALSE);
mpPreviewDevice->SetLineColor (maFrameColor);
mpPreviewDevice->SetFillColor ();
mpPreviewDevice->DrawRect (aPaintRectangle);
mpPreviewDevice->EnableMapMode (TRUE);
}
void PreviewRenderer::SetupOutputSize (
const SdPage* pPage,
const Size& rFramePixelSize)
{
// First set the map mode to some arbitrary scale that is numerically
// stable.
MapMode aMapMode (mpPreviewDevice->GetMapMode());
aMapMode.SetMapUnit(MAP_100TH_MM);
double nInitialScale = 1;
aMapMode.SetScaleX (Fraction(nInitialScale));
aMapMode.SetScaleY (Fraction(nInitialScale));
aMapMode.SetOrigin (Point(0,0));
// Adapt it to the desired width.
Size aPageModelSize (pPage->GetSize());
/* double nAspectRatio (
double(aPageModelSize.Width()) / double(aPageModelSize.Height()));
Size aFramePixelSize (nWidth, (int)((nWidth-2) / nAspectRatio + 2 + 0.5));
*/
Size aOutputSize = mpPreviewDevice->LogicToPixel(
pPage->GetSize(), aMapMode);
double nFinalScale (nInitialScale * (rFramePixelSize.Width()-snFrameWidth)
/ aOutputSize.Width());
aMapMode.SetScaleX (nFinalScale);
aMapMode.SetScaleY (nFinalScale);
aMapMode.SetOrigin (mpPreviewDevice->PixelToLogic(
Point(snFrameWidth,snFrameWidth),aMapMode));
mpPreviewDevice->SetMapMode (aMapMode);
mpPreviewDevice->SetOutputSizePixel(rFramePixelSize);
}
void PreviewRenderer::ProvideView (DrawDocShell* pDocShell)
{
if (pDocShell != mpDocShellOfView)
{
// Destroy the view that is connected to the current doc shell.
mpView.reset (NULL);
// Switch our attention, i.e. listening for DYING events, to
// the new doc shell.
if (mpDocShellOfView != NULL)
EndListening (*mpDocShellOfView);
mpDocShellOfView = pDocShell;
if (mpDocShellOfView != NULL)
StartListening (*mpDocShellOfView);
}
if (mpView.get() == NULL)
{
mpView.reset (new DrawView (pDocShell, mpPreviewDevice.get(), NULL));
}
mpView->SetPreviewRenderer( sal_True );
mpView->SetBordVisible(FALSE);
mpView->SetPageBorderVisible(FALSE);
mpView->SetPageVisible(TRUE);
}
Image PreviewRenderer::ScaleBitmap (
const BitmapEx& rBitmapEx,
int nWidth)
{
Image aPreview;
do
{
// Adjust contrast mode.
bool bUseContrast = Application::GetSettings().GetStyleSettings().
GetHighContrastMode();
mpPreviewDevice->SetDrawMode (bUseContrast
? ViewShell::OUTPUT_DRAWMODE_CONTRAST
: ViewShell::OUTPUT_DRAWMODE_COLOR);
// Set output size.
Size aSize (rBitmapEx.GetSizePixel());
if (aSize.Width() <= 0)
break;
Size aFrameSize (
nWidth,
(long)((nWidth*1.0 * aSize.Height()) / aSize.Width() + 0.5));
Size aPreviewSize (aFrameSize.Width()-2,aFrameSize.Height()-2);
MapMode aMapMode (mpPreviewDevice->GetMapMode());
aMapMode.SetMapUnit(MAP_PIXEL);
aMapMode.SetOrigin (Point());
aMapMode.SetScaleX (1.0);
aMapMode.SetScaleY (1.0);
mpPreviewDevice->SetMapMode (aMapMode);
mpPreviewDevice->SetOutputSize (aFrameSize);
// Paint a frame arround the preview.
mpPreviewDevice->SetLineColor (maFrameColor);
mpPreviewDevice->SetFillColor ();
mpPreviewDevice->DrawRect (Rectangle(Point(0,0), aFrameSize));
// Paint the bitmap scaled to the desired width.
BitmapEx aScaledBitmap (rBitmapEx.GetBitmap());
aScaledBitmap.Scale (aPreviewSize, BMP_SCALE_INTERPOLATE);
mpPreviewDevice->DrawBitmap (
Point(1,1),
aPreviewSize,
aScaledBitmap.GetBitmap());
// Get the resulting bitmap.
aPreview = mpPreviewDevice->GetBitmap (Point(0,0), aFrameSize);
}
while (false);
return aPreview;
}
void PreviewRenderer::SFX_NOTIFY(
SfxBroadcaster&,
const TypeId& rBCType,
const SfxHint& rHint,
const TypeId& rHintType)
{
if (rHint.IsA(TYPE(SfxSimpleHint))
&& mpDocShellOfView != NULL)
{
const SfxSimpleHint* pSimpleHint = PTR_CAST(SfxSimpleHint, &rHint);
if (pSimpleHint != NULL
&& pSimpleHint->GetId() == SFX_HINT_DYING)
{
// The doc shell is dying. Our view uses its item pool and
// has to be destroyed as well. The next call to
// ProvideView will create a new one (for another
// doc shell, of course.)
mpView.reset (NULL);
mpDocShellOfView = NULL;
}
}
}
} // end of namespace ::sd