// $Id: colplate.h 1282 2006-06-09 09:46:49Z 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. 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Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. http://www.xara.com/ =================================XARAHEADEREND============================ */ // colplate.h - Definitions for colour separations in ColourContexts #ifndef INC_COLPLATE #define INC_COLPLATE //#include "doccolor.h" - in camtypes.h [AUTOMATICALLY REMOVED] //#include "listitem.h" - in camtypes.h [AUTOMATICALLY REMOVED] class IndexedColour; typedef enum { COLOURPLATE_NONE, // No colour plate (normal rendering operation) COLOURPLATE_COMPOSITE, // Composite print-preview (colour matching) COLOURPLATE_CYAN, // Process colour separation plates COLOURPLATE_MAGENTA, COLOURPLATE_YELLOW, COLOURPLATE_KEY, COLOURPLATE_SPOT // Spot colour separation plate } ColourPlateType; /******************************************************************************************** > typedef enum ScreenType Author: Mike_Kenny (Xara Group Ltd) Created: 11/6/95 Purpose: enumeration of the screen types we support inside a plate ********************************************************************************************/ typedef enum ScreenType { SCRTYPE_NONE, SCRTYPE_SPOT1, SCRTYPE_SPOT2, SCRTYPE_TRIPLESPOT1, SCRTYPE_TRIPLESPOT2, SCRTYPE_ELLIPTICAL, SCRTYPE_LINE, SCRTYPE_CROSSHATCH, SCRTYPE_MEZZOTINT, SCRTYPE_SQUARE, SCRTYPE_DITHER }; /******************************************************************************************** > class ColourPlate : public ListItem Author: Jason_Williams (Xara Group Ltd) Date: 20/12/95 Purpose: The ColourPlate class is used as a descriptor defining how a colour context should separate/filter a colour as it is converted. The ColourPlate indicates what type of separation plate is required, e.g none, cyan, or spot. In the case of a spot plate, the ColourPlate also retains a pointer to the spot colour for which a plate is required. A flag is available, Negate, which controls if a normal or "photographic negative" plate is required. Notes: You can't change a colour plate "on the fly", as you must attach a new one to a colour context in order to make caching of colours work correctly. Thus, to change the plate, you must build a new one. SeeAlso: ColourContext::SetColourPlate ********************************************************************************************/ class ColourPlate : public ListItem { CC_DECLARE_DYNCREATE(ColourPlate); public: // Construction/destruction ColourPlate(); virtual ~ColourPlate(); ColourPlate(ColourPlateType TheType, BOOL MonochromePlate = FALSE, BOOL NegatePlate = FALSE); ColourPlate(IndexedColour *SpotColour, BOOL MonochromePlate = FALSE, BOOL NegatePlate = FALSE); ColourPlate(const ColourPlate &Other); ColourPlate &operator=(const ColourPlate &Other); public: // Special user-interface functions void GetDescription(StringBase *Description); // Gets a description of this colour plate (e.g. "Cyan", "Gold (Spot)") void GetDisplayColour(DocColour *Colour); // Gets a display colour to be used when showing a colour patch display // for this plate. public: // Retrieving current settings BOOL IsDisabled(void) { return(Disabled); }; // Returns TRUE if this plate is temporarily disabled ColourPlateType GetType(void) { return(Type); }; // Gets the colour plate type that this object represents IndexedColour *GetSpotColour(void) // Gets the spot colour (if any) which this spot plate contains { return(Spot.FindParentIndexedColour()); }; BOOL IsMonochrome(void) { return(Monochrome); }; // Returns TRUE if this plate should contain only monochromatic values BOOL IsNegative(void) { return(Negate); }; // Returns TRUE if this plate is a photographic negative double GetScreenAngle(void) { return(ScreenAngle); }; // Returns the screen angle (0..360 degrees) double GetScreenFrequency(void) { return(ScreenFrequency); }; // Returns the screen frequency ScreenType GetScreenFunction(void) { return(ScreenFunction); }; // Returns the screen function BOOL ActiveScreening(void) { return(ActiveScreens); }; // Returns TRUE if this plate uses screening BOOL Overprints(void) { return(Overprint); }; // Returns TRUE if graphics (non-text) objects should overprint public: // Changing current settings - use as infrequently as possible void SetDisabled(BOOL IsDisabled = TRUE); // Disables/enables the output of this plate. This has 2 uses: // 1. Stops the plate being printed by the main print loop // 2. If the plate is rendered, can be used as a temporary flag to stop // colour separation and correction during output. void SetPlateInfo(ColourContext *Parent, ColourPlateType TheType, BOOL MonochromePlate = FALSE, BOOL NegatePlate = FALSE); void SetPlateInfo(ColourContext *Parent, IndexedColour *SpotColour, BOOL MonochromePlate = FALSE, BOOL NegatePlate = FALSE); void SetType(ColourContext *Parent, ColourPlateType TheType, IndexedColour *SpotColour = NULL); // Set this plate to be of a particular type void SetScreenInfo(double Angle, double Frequency); // Sets screen angle/frequency for this plate void SetScreenFunction(ScreenType func); // Sets screen type for this plate void SetActiveScreening(BOOL On = TRUE); // Turns on screen usage for this plate void SetOverprint(BOOL On = TRUE); // Enable/Disable overprint for this plate void SetMonochrome(ColourContext *Parent, BOOL On = TRUE); // Force all output to be monochrome (print) or plate-coloured (preview) void SetNegative(ColourContext *Parent, BOOL On = TRUE); // Force all output to be photographically negated (or normal) void ResetScreenToDefaults(INT32 DeviceDPI = 1200, INT32 DefaultFrequency = 60); // Makes this colour plate reset to recommended screen angle settings for // the current printer resolution (dpi) and screen frequency (lpi) protected: // Internal helper functions void InitObject(ColourPlateType NewType); // Sets a new Type for this plate, and initisalises all other member variables // to sensible default values for the given plate type. protected: // Internal data BOOL Disabled; // TRUE if this ColourPlate is disabled (used to temporarily turn // off colour separation for specific colours like UI/EOR DocColours) ColourPlateType Type; // The type of separation/plate desired DocColour Spot; // References the spot colour (spot plates only) double ScreenAngle; // The screen angle for this plate double ScreenFrequency; // The screen frequency for this plate BOOL Overprint; // TRUE if this plate should overprint, FALSE if it should knock-out BOOL Monochrome; // TRUE if the plate should contain only monochromatic shades // (if FALSE, e.g. a Cyan separation will be shades of Cyan) BOOL Negate; // TRUE if the plate should be a negative image BOOL ActiveScreens; // TRUE if the screening is active ScreenType ScreenFunction; // The screen function to use (Spot1/Spot2 etc) }; #endif // INC_COLPLATE