/* * tkMacColor.c -- * * This file maintains a database of color values for the Tk * toolkit, in order to avoid round-trips to the server to * map color names to pixel values. * * Copyright (c) 1990-1994 The Regents of the University of California. * Copyright (c) 1994-1996 Sun Microsystems, Inc. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * * RCS: @(#) $Id: tkMacColor.c,v 1.6 1999/05/22 06:32:36 jingham Exp $ */ #include #include "tkMacInt.h" #include #include #include /* * Default Auxillary Control Record for all controls. This is cached once * and is updated by the system. We use this to get the default system * colors used by controls. */ static AuxCtlHandle defaultAuxCtlHandle = NULL; /* * Forward declarations for procedures defined later in this file: */ static int GetControlPartColor _ANSI_ARGS_((short part, RGBColor *macColor)); static int GetMenuPartColor _ANSI_ARGS_((int part, RGBColor *macColor)); static int GetWindowPartColor _ANSI_ARGS_((short part, RGBColor *macColor)); /* *---------------------------------------------------------------------- * * TkSetMacColor -- * * Populates a Macintosh RGBColor structure from a X style * pixel value. * * Results: * Returns false if not a real pixel, true otherwise. * * Side effects: * The variable macColor is updated to the pixels value. * *---------------------------------------------------------------------- */ int TkSetMacColor( unsigned long pixel, /* Pixel value to convert. */ RGBColor *macColor) /* Mac color struct to modify. */ { switch (pixel >> 24) { case HIGHLIGHT_PIXEL: LMGetHiliteRGB(macColor); return true; case HIGHLIGHT_TEXT_PIXEL: LMGetHiliteRGB(macColor); if ((macColor->red == 0) && (macColor->green == 0) && (macColor->blue == 0)) { macColor->red = macColor->green = macColor->blue = 0xFFFFFFFF; } else { macColor->red = macColor->green = macColor->blue = 0; } return true; case CONTROL_TEXT_PIXEL: GetControlPartColor(cTextColor, macColor); return true; case CONTROL_BODY_PIXEL: GetControlPartColor(cBodyColor, macColor); return true; case CONTROL_FRAME_PIXEL: GetControlPartColor(cFrameColor, macColor); return true; case WINDOW_BODY_PIXEL: GetWindowPartColor(wContentColor, macColor); return true; case MENU_ACTIVE_PIXEL: case MENU_ACTIVE_TEXT_PIXEL: case MENU_BACKGROUND_PIXEL: case MENU_DISABLED_PIXEL: case MENU_TEXT_PIXEL: return GetMenuPartColor((pixel >> 24), macColor); case APPEARANCE_PIXEL: return false; case PIXEL_MAGIC: default: macColor->blue = (unsigned short) ((pixel & 0xFF) << 8); macColor->green = (unsigned short) (((pixel >> 8) & 0xFF) << 8); macColor->red = (unsigned short) (((pixel >> 16) & 0xFF) << 8); return true; } } /* *---------------------------------------------------------------------- * * Stub functions -- * * These functions are just stubs for functions that either * don't make sense on the Mac or have yet to be implemented. * * Results: * None. * * Side effects: * These calls do nothing - which may not be expected. * *---------------------------------------------------------------------- */ Status XAllocColor( Display *display, /* Display. */ Colormap map, /* Not used. */ XColor *colorPtr) /* XColor struct to modify. */ { display->request++; colorPtr->pixel = TkpGetPixel(colorPtr); return 1; } Colormap XCreateColormap( Display *display, /* Display. */ Window window, /* X window. */ Visual *visual, /* Not used. */ int alloc) /* Not used. */ { static Colormap index = 1; /* * Just return a new value each time. */ return index++; } void XFreeColormap( Display* display, /* Display. */ Colormap colormap) /* Colormap. */ { } void XFreeColors( Display* display, /* Display. */ Colormap colormap, /* Colormap. */ unsigned long* pixels, /* Array of pixels. */ int npixels, /* Number of pixels. */ unsigned long planes) /* Number of pixel planes. */ { /* * The Macintosh version of Tk uses TrueColor. Nothing * needs to be done to release colors as there really is * no colormap in the Tk sense. */ } /* *---------------------------------------------------------------------- * * TkpGetColor -- * * Allocate a new TkColor for the color with the given name. * * Results: * Returns a newly allocated TkColor, or NULL on failure. * * Side effects: * May invalidate the colormap cache associated with tkwin upon * allocating a new colormap entry. Allocates a new TkColor * structure. * *---------------------------------------------------------------------- */ TkColor * TkpGetColor( Tk_Window tkwin, /* Window in which color will be used. */ Tk_Uid name) /* Name of color to allocated (in form * suitable for passing to XParseColor). */ { Display *display = Tk_Display(tkwin); Colormap colormap = Tk_Colormap(tkwin); TkColor *tkColPtr; XColor color; /* * Check to see if this is a system color. Otherwise, XParseColor * will do all the work. */ if (strncasecmp(name, "system", 6) == 0) { int foundSystemColor = false; RGBColor rgbValue; char pixelCode; if (!strcasecmp(name+6, "Highlight")) { LMGetHiliteRGB(&rgbValue); pixelCode = HIGHLIGHT_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "HighlightText")) { LMGetHiliteRGB(&rgbValue); if ((rgbValue.red == 0) && (rgbValue.green == 0) && (rgbValue.blue == 0)) { rgbValue.red = rgbValue.green = rgbValue.blue = 0xFFFFFFFF; } else { rgbValue.red = rgbValue.green = rgbValue.blue = 0; } pixelCode = HIGHLIGHT_TEXT_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "ButtonText")) { GetControlPartColor(cTextColor, &rgbValue); pixelCode = CONTROL_TEXT_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "ButtonFace")) { GetControlPartColor(cBodyColor, &rgbValue); pixelCode = CONTROL_BODY_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "ButtonFrame")) { GetControlPartColor(cFrameColor, &rgbValue); pixelCode = CONTROL_FRAME_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "WindowBody")) { GetWindowPartColor(wContentColor, &rgbValue); pixelCode = WINDOW_BODY_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "MenuActive")) { GetMenuPartColor(MENU_ACTIVE_PIXEL, &rgbValue); pixelCode = MENU_ACTIVE_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "MenuActiveText")) { GetMenuPartColor(MENU_ACTIVE_TEXT_PIXEL, &rgbValue); pixelCode = MENU_ACTIVE_TEXT_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "Menu")) { GetMenuPartColor(MENU_BACKGROUND_PIXEL, &rgbValue); pixelCode = MENU_BACKGROUND_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "MenuDisabled")) { GetMenuPartColor(MENU_DISABLED_PIXEL, &rgbValue); pixelCode = MENU_DISABLED_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "MenuText")) { GetMenuPartColor(MENU_TEXT_PIXEL, &rgbValue); pixelCode = MENU_TEXT_PIXEL; foundSystemColor = true; } else if (!strcasecmp(name+6, "AppearanceColor")) { color.red = 0; color.green = 0; color.blue = 0; pixelCode = APPEARANCE_PIXEL; foundSystemColor = true; } if (foundSystemColor) { color.red = rgbValue.red; color.green = rgbValue.green; color.blue = rgbValue.blue; color.pixel = ((((((pixelCode << 8) | ((color.red >> 8) & 0xff)) << 8) | ((color.green >> 8) & 0xff)) << 8) | ((color.blue >> 8) & 0xff)); tkColPtr = (TkColor *) ckalloc(sizeof(TkColor)); tkColPtr->color = color; return tkColPtr; } } if (XParseColor(display, colormap, name, &color) == 0) { return (TkColor *) NULL; } tkColPtr = (TkColor *) ckalloc(sizeof(TkColor)); tkColPtr->color = color; return tkColPtr; } /* *---------------------------------------------------------------------- * * TkpGetColorByValue -- * * Given a desired set of red-green-blue intensities for a color, * locate a pixel value to use to draw that color in a given * window. * * Results: * The return value is a pointer to an TkColor structure that * indicates the closest red, blue, and green intensities available * to those specified in colorPtr, and also specifies a pixel * value to use to draw in that color. * * Side effects: * May invalidate the colormap cache for the specified window. * Allocates a new TkColor structure. * *---------------------------------------------------------------------- */ TkColor * TkpGetColorByValue( Tk_Window tkwin, /* Window in which color will be used. */ XColor *colorPtr) /* Red, green, and blue fields indicate * desired color. */ { TkColor *tkColPtr = (TkColor *) ckalloc(sizeof(TkColor)); tkColPtr->color.red = colorPtr->red; tkColPtr->color.green = colorPtr->green; tkColPtr->color.blue = colorPtr->blue; tkColPtr->color.pixel = TkpGetPixel(&tkColPtr->color); return tkColPtr; } /* *---------------------------------------------------------------------- * * GetControlPartColor -- * * Given a part number this function will return the standard * system default color for that part. It does this by looking * in the system's 'cctb' resource. * * Results: * True if a color is found, false otherwise. * * Side effects: * If a color is found then the RGB variable will be changed to * the parts color. * *---------------------------------------------------------------------- */ static int GetControlPartColor( short part, /* Part code. */ RGBColor *macColor) /* Pointer to Mac color. */ { short index; CCTabHandle ccTab; if (defaultAuxCtlHandle == NULL) { GetAuxiliaryControlRecord(NULL, &defaultAuxCtlHandle); } ccTab = (**defaultAuxCtlHandle).acCTable; if(ccTab && (ResError() == noErr)) { for(index = 0; index <= (**ccTab).ctSize; index++) { if((**ccTab).ctTable[index].value == part) { *macColor = (**ccTab).ctTable[index].rgb; return true; } } } return false; } /* *---------------------------------------------------------------------- * * GetWindowPartColor -- * * Given a part number this function will return the standard * system default color for that part. It does this by looking * in the system's 'wctb' resource. * * Results: * True if a color is found, false otherwise. * * Side effects: * If a color is found then the RGB variable will be changed to * the parts color. * *---------------------------------------------------------------------- */ static int GetWindowPartColor( short part, /* Part code. */ RGBColor *macColor) /* Pointer to Mac color. */ { short index; WCTabHandle wcTab; wcTab = (WCTabHandle) GetResource('wctb', 0); if(wcTab && (ResError() == noErr)) { for(index = 0; index <= (**wcTab).ctSize; index++) { if((**wcTab).ctTable[index].value == part) { *macColor = (**wcTab).ctTable[index].rgb; return true; } } } return false; } /* *---------------------------------------------------------------------- * * GetMenuPartColor -- * * Given a magic pixel value, returns the RGB color associated * with it by looking the value up in the system's 'mctb' resource. * * Results: * True if a color is found, false otherwise. * * Side effects: * If a color is found then the RGB variable will be changed to * the parts color. * *---------------------------------------------------------------------- */ static int GetMenuPartColor( int pixel, /* The magic pixel value */ RGBColor *macColor) /* Pointer to Mac color */ { RGBColor backColor, foreColor; GDHandle maxDevice; Rect globalRect; MCEntryPtr mcEntryPtr; /* Under Appearance, we don't want to set any menu colors when we are asked for the standard menu colors. So we return false (which means don't use this color... */ if (TkMacHaveAppearance()) { macColor->red = 0xFFFF; macColor->green = 0; macColor->blue = 0; return false; } else { mcEntryPtr = GetMCEntry(0, 0); switch (pixel) { case MENU_ACTIVE_PIXEL: if (mcEntryPtr == NULL) { macColor->red = macColor->blue = macColor->green = 0; } else { *macColor = mcEntryPtr->mctRGB3; } return true; case MENU_ACTIVE_TEXT_PIXEL: if (mcEntryPtr == NULL) { macColor->red = macColor->blue = macColor->green = 0xFFFF; } else { *macColor = mcEntryPtr->mctRGB2; } return true; case MENU_BACKGROUND_PIXEL: if (mcEntryPtr == NULL) { macColor->red = macColor->blue = macColor->green = 0xFFFF; } else { *macColor = mcEntryPtr->mctRGB2; } return true; case MENU_DISABLED_PIXEL: if (mcEntryPtr == NULL) { backColor.red = backColor.blue = backColor.green = 0xFFFF; foreColor.red = foreColor.blue = foreColor.green = 0x0000; } else { backColor = mcEntryPtr->mctRGB2; foreColor = mcEntryPtr->mctRGB3; } SetRect(&globalRect, SHRT_MIN, SHRT_MIN, SHRT_MAX, SHRT_MAX); maxDevice = GetMaxDevice(&globalRect); if (GetGray(maxDevice, &backColor, &foreColor)) { *macColor = foreColor; } else { /* * Pointer may have been moved by GetMaxDevice or GetGray. */ mcEntryPtr = GetMCEntry(0,0); if (mcEntryPtr == NULL) { macColor->red = macColor->green = macColor->blue = 0x7777; } else { *macColor = mcEntryPtr->mctRGB2; } } return true; case MENU_TEXT_PIXEL: if (mcEntryPtr == NULL) { macColor->red = macColor->green = macColor->blue = 0; } else { *macColor = mcEntryPtr->mctRGB3; } return true; } return false; } }