// $Id: view.h 1323 2006-06-14 18:52:43Z alex $ /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE ================================XARAHEADERSTART=========================== Xara LX, a vector drawing and manipulation program. Copyright (C) 1993-2006 Xara Group Ltd. Copyright on certain contributions may be held in joint with their respective authors. See AUTHORS file for details. LICENSE TO USE AND MODIFY SOFTWARE ---------------------------------- This file is part of Xara LX. Xara LX is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License version 2 as published by the Free Software Foundation. Xara LX and its component source files are 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 General Public License for more details. You should have received a copy of the GNU General Public License along with Xara LX (see the file GPL in the root directory of the distribution); if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ADDITIONAL RIGHTS ----------------- Conditional upon your continuing compliance with the GNU General Public License described above, Xara Group Ltd grants to you certain additional rights. The additional rights are to use, modify, and distribute the software together with the wxWidgets library, the wxXtra library, and the "CDraw" library and any other such library that any version of Xara LX relased by Xara Group Ltd requires in order to compile and execute, including the static linking of that library to XaraLX. In the case of the "CDraw" library, you may satisfy obligation under the GNU General Public License to provide source code by providing a binary copy of the library concerned and a copy of the license accompanying it. Nothing in this section restricts any of the rights you have under the GNU General Public License. SCOPE OF LICENSE ---------------- This license applies to this program (XaraLX) and its constituent source files only, and does not necessarily apply to other Xara products which may in part share the same code base, and are subject to their own licensing terms. This license does not apply to files in the wxXtra directory, which are built into a separate library, and are subject to the wxWindows license contained within that directory in the file "WXXTRA-LICENSE". This license does not apply to the binary libraries (if any) within the "libs" directory, which are subject to a separate license contained within that directory in the file "LIBS-LICENSE". ARRANGEMENTS FOR CONTRIBUTION OF MODIFICATIONS ---------------------------------------------- Subject to the terms of the GNU Public License (see above), you are free to do whatever you like with your modifications. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ // Base class for kernel View objects. #ifndef INC_VIEW #define INC_VIEW #include "listitem.h" #include "quality.h" #include "matrix.h" #include "docrect.h" #include "rendtype.h" #include "oilrect.h" #include "rndrgn.h" #include "colcarry.h" #include "colmodel.h" //#include "viewbitmapcache.h" class CCamView; class ViewState; class Document; class wxDC; class RenderRegion; class ScanningRenderRegion; class Spread; class PaperRenderRegion; class Node; class PrintControl; // WEBSTER-ranbirr-13/11/96 #ifndef WEBSTER class CCPrintInfo; #endif //webster class ColourPlate; /******************************************************************************************** > class ProgressInfo Author: Tim_Browse (Xara Group Ltd) Created: 05/25/95 Purpose: Encapsulates various bits of information required to provide a progress display while printing/exporting via View::RenderSimpleView(). SeeAlso: View::RenderSimpleView ********************************************************************************************/ class ProgressDisplay { public: ProgressDisplay(); // Functions to do the normal progress display (eekk) void SetUp(RenderRegion *pRender, ScanningRenderRegion* pScanner); BOOL IncProgress(INT32 NumNodes = 1); BOOL FirstStageDone(); BOOL SecondStageDone(); void AllStagesDone(); void StartBitmapPhase(INT32 NumBands); void StartBitmapPhaseBand(INT32 TotalNumScanlines); BOOL BitmapPhaseBandRenderedTo(INT32 ScanlinesRendered); BOOL EndBitmapPhaseBand(); // Functions to deal with the Optimal Render View function // this is much simpler, so it gets its own functions. void SetUpOptimal(RenderRegion *pRender, ScanningRenderRegion* pScanner); BOOL SetNodesRendered(INT32 NumNodes); protected: // General variables BOOL DoProgressDisplay; BOOL IsPrinting; INT32 NumNodesRendered; INT32 LastProgressUpdate; // 'Normal' node rendering. INT32 ProgressInterval; INT32 FirstStageCount; INT32 SecondStageCount; INT32 ThirdStageCount; // Banded bitmap rendering INT32 BandSize; INT32 BandHeight; INT32 BandOffset; INT32 BandIncrement; // Optimal Rendering vars INT32 TotalNodes; // WEBSTER-ranbirr-13/11/96 #ifndef WEBSTER // Used to update print progress (if printing) CCPrintInfo *pPrintInfo; #endif //webster // How much we have scaled up the node count by to get a decent progress resolution. INT32 ProgressScaleFactor; }; /******************************************************************************************** < RenderViewResult Comment: This is used to indicate the outcome of calling View::RenderSimpleView. SeeAlso: View::RenderSimpleView ********************************************************************************************/ enum RenderViewResult { RENDERVIEW_SUCCESS, RENDERVIEW_NOTNEEDED, RENDERVIEW_FAILURE, RENDERVIEW_USERABORT }; /******************************************************************************************** > class View : public ListItem Author: Tim_Browse (Xara Group Ltd) Created: 02/07/95 Purpose: The basic kernel view item. This class contains minimal functionality to maintain the 'current' view, and the connection from a kernel view object to an OIL view object. DocView and PrintView are derived from this class. SeeAlso: DocView; PrintView ********************************************************************************************/ class View : public ListItem { CC_DECLARE_DYNAMIC(View); public: View(); virtual ~View(); static void Deinit(); ///////////////////////////////////////////////////////////////////////////////////////////////// // Interface to the OIL layer CCamView and the kernel Document. protected: CCamView* pViewWindow; // Pointer to the associated CCamView Document* pDoc; // Pointer to owner document. ViewState* pVState; // Device independent state of the view. public: BOOL ConnectToOilView(CCamView*); // Set up the link to the CCamView object Document* GetDoc() const; // Returns document associated with this CCamView* GetConnectionToOilView() const; // Which CCamView are we linked to PrintControl *GetPrintControl(); // Get print control for our document. virtual void SetViewState(ViewState*); virtual BOOL ViewStateChanged() = 0; // informs us that ViewState has changed ///////////////////////////////////////////////////////////////////////////////////////////////// // "Current" and "Selected" Views protected: static View* Current; // Global which records Current View public: static View* GetCurrent(); // Returns which View is current BOOL SetCurrent(); // Make this View current static void SetNoCurrent(); // Make NO View current virtual void SetViewPixelSize() = 0; // Set pixel size according to this view. ///////////////////////////////////////////////////////////////////////////////////////////////// // Rendering public: void OnDraw(wxDC*, OilRect); virtual void ContinueRenderView(RenderRegion*, Spread*, BOOL fRenderPaper = TRUE, BOOL fDeleteRegionAfter = TRUE, BOOL bForceImmediate = FALSE) = 0; virtual wxDC* GetRenderDC() = 0; virtual void AllocateDC(); virtual void DoneWithDC(); virtual BOOL RenderTreeCallback(Node* pNode, RenderRegion* pRender) {return TRUE;} Quality RenderQuality; // WYSIWYG value (only freinds of Quality can // get/set numeric value // Functions to render complex shapes into simple render regions RenderViewResult RenderOptimalView(RenderRegion*r, Matrix&, Spread*, BOOL); SlowJobResult RenderOptimalBitmapPhase(DocRect& ClipRect, Matrix&, Spread*, RenderRegion*, Node*, Node*, BOOL RenderAllObjects, BOOL bPrintPaper, INT32&, ProgressDisplay* pProgress, INT32 TotalProgress); virtual RenderViewResult RenderSimpleView(RenderRegion*, Matrix&, Spread*, BOOL); SlowJobResult RenderBitmapPhase(DocRect& ClipRect, Matrix&, Spread*, RenderRegion*, Node*, Node*, BOOL bRenderAll, BOOL bPrintPaper, ProgressDisplay& Progress); static void DeInitOnTopRegion(); static BOOL IsPrintableNodeSelected(Node *); virtual void RenderPaper(Spread*, DocRect, wxDC*, Matrix&); virtual BOOL RenderPageMarks(RenderRegion*, Matrix&, DocRect&, Spread*); protected: virtual void RenderPaper(RenderRegion*, Spread*); SlowJobResult RenderSimpleNodes(Node *pNode, RenderRegion *pRender, ProgressDisplay& Progress, Node *pLastComplexNode = NULL); SlowJobResult RenderSimpleNodesUnclipped(Node *pNode, RenderRegion *pRender, ProgressDisplay& Progress, Node *pLastComplexNode = NULL); private: static PaperRenderRegion* pPaperRegion; // Region to use when rendering paper only // (i.e. only for screen views) static PaperRenderRegion* pOnTopRegion; // Region to use when rendering blobs only // (i.e. only for screen views) // ViewBitmapCache m_CachedBitmaps; // Collection of bitmaps for rendering optimisation public: virtual BOOL GetForeBackMode() = 0; virtual void SetForeBackMode(BOOL) = 0; virtual Matrix ConstructRenderingMatrix(Spread *pSpread); // Ilan 06/06/00 virtual Matrix ConstructScaledRenderingMatrix(Spread *pSpread, double ScaleFactor); protected: RenderRegion *NewRenderRegion(DocRect InvalidRect, Matrix& ViewMatrix, wxDC* pDevContext, Spread* pSpread, RenderType rType, bool fOwned = false ); // Function to build and control the render regions virtual void MakeNewRenderRegion(Spread *, DocRect, wxDC *, RenderType, BOOL PaintPaper = FALSE, Node* pInvalidNode = NULL); public: // Get/Set the size of OIL pixels that this view uses. FIXED16 GetPixelWidth(); FIXED16 GetPixelHeight(); void GetPixelSize(FIXED16 *PixelWidth, FIXED16 *PixelHeight); virtual void SetPixelSize(FIXED16 PixelWidth, FIXED16 PixelHeight); FIXED16 GetScaledPixelWidth(); FIXED16 GetScaledPixelHeight(); void GetScaledPixelSize(FIXED16 *PixelWidth, FIXED16 *PixelHeight); virtual void SetScaledPixelSize(FIXED16 PixelWidth, FIXED16 PixelHeight); virtual double GetConvertToEditableShapesDPI(); protected: // Actual size of OIL pixels that this view uses. FIXED16 PixelWidth, PixelHeight; // Scaled size of OIL pixels that this view uses. FIXED16 ScaledPixelWidth, ScaledPixelHeight; public: // Colour contexts ColourContext *GetColourContext(ColourModel Model, BOOL ReturnNULLIfNone = FALSE); // Find the view's context for the given colour model ColourPlate *GetColourPlate(void); // Find out what ColourPlate separation (if any) this view is using void SetColourPlate(ColourPlate *NewPlate, BOOL bSendContextChanged = TRUE); // Set the colour separation mode that will be used in all future output // from this view void SetColourContext(ColourModel Model, ColourContext *NewContext = NULL); // Set or clear the special colour context for a given colour model. // The View will delete the context when it is finished with it, or when // you call this function again with another context or a NULL pointer. BOOL GetForceDefaultColourContexts(void) { return(ForceDefaultColourContexts); } BOOL SetForceDefaultColourContexts(BOOL bForceDefault = TRUE) { BOOL bOldForce = ForceDefaultColourContexts; ForceDefaultColourContexts = bForceDefault; return(bOldForce); } protected: ColourPlate *ColPlate; // NULL, or Current colour separation options ColourContextArray ColourContexts; // Cached colour contexts using the ColourPlate BOOL ShouldDeleteContext[16]; // Flags for each cached context BOOL ForceDefaultColourContexts; // Internal flag // if TRUE, forces GetColourContext to return global // default colour contexts rather than special ones. // Used by RenderOptimalBitmapPhase to disable colour // separation/correction in masked bitmap rendering. ///////////////////////////////////////////////////////////////////////////////////////////////// // Scrolling, scaling and extents protected: FIXED16 Scale; // User viewing/printing scale factor. DocRect PhysExtent; // Size of a document (bang!) public: WorkCoord GetScrollOffsets() const; virtual BOOL SetScrollOffsets(WorkCoord, BOOL RedrawNeeded = TRUE); FIXED16 GetViewScale() const; // ? the user scale in this view virtual BOOL SetViewScale(FIXED16); // Set the user scale factor virtual DocRect GetDocViewRect(Spread*) = 0; virtual void SetExtent(DocCoord, DocCoord) = 0; // Reset the extent of the document virtual WorkRect GetViewRect() = 0; // The physical rect of the view ///////////////////////////////////////////////////////////////////////////////////////////////// // Dragging protected: BOOL m_bSolidDrag; // Flag indicating that current drag is solid }; /******************************************************************************************** > class CountView : Public View Author: Phil_Martin (Xara Group Ltd) Created: 28/06/2004 Purpose: For counting "rendered" objects without actually rendering them SeeAlso: View ********************************************************************************************/ /*class CountView : Public View { virtual BOOL RenderSubtreeCallback(Node* pNode, RenderRegion* pRender); }; */ class ScopedFlagSetter { public: ScopedFlagSetter(BOOL& bTarget, BOOL bNewVal) { // Remeber a pointer to the target and the original value m_pbTarget = &bTarget; m_bOldVal = bTarget; // And set the target to the new value bTarget = bNewVal; } ~ScopedFlagSetter() { // Reset the target to the original value *m_pbTarget = m_bOldVal; } BOOL m_bOldVal; BOOL* m_pbTarget; }; #endif // INC_VIEW