update tcl/tk

1 files changed, 589 insertions, 0 deletions

diff --git a/tk8.6/win/tkWinColor.c b/tk8.6/win/tkWinColor.c
new file mode 100644
index 0000000..ba9815c
--- /dev/null
+++ b/tk8.6/win/tkWinColor.c
@@ -0,0 +1,589 @@
+/*
+ * tkWinColor.c --
+ *
+ *	Functions to map color names to system color values.
+ *
+ * Copyright (c) 1995 Sun Microsystems, Inc.
+ * Copyright (c) 1994 Software Research Associates, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tkWinInt.h"
+#include "tkColor.h"
+
+/*
+ * The following structure is used to keep track of each color that is
+ * allocated by this module.
+ */
+
+typedef struct WinColor {
+    TkColor info;		/* Generic color information. */
+    int index;			/* Index for GetSysColor(), -1 if color is not
+				 * a "live" system color. */
+} WinColor;
+
+/*
+ * The sysColors array contains the names and index values for the Windows
+ * indirect system color names. In use, all of the names will have the string
+ * "System" prepended, but we omit it in the table to save space.
+ */
+
+typedef struct {
+    const char *name;
+    int index;
+} SystemColorEntry;
+
+static const SystemColorEntry sysColors[] = {
+    {"3dDarkShadow",		COLOR_3DDKSHADOW},
+    {"3dLight",			COLOR_3DLIGHT},
+    {"ActiveBorder",		COLOR_ACTIVEBORDER},
+    {"ActiveCaption",		COLOR_ACTIVECAPTION},
+    {"AppWorkspace",		COLOR_APPWORKSPACE},
+    {"Background",		COLOR_BACKGROUND},
+    {"ButtonFace",		COLOR_BTNFACE},
+    {"ButtonHighlight",		COLOR_BTNHIGHLIGHT},
+    {"ButtonShadow",		COLOR_BTNSHADOW},
+    {"ButtonText",		COLOR_BTNTEXT},
+    {"CaptionText",		COLOR_CAPTIONTEXT},
+    {"DisabledText",		COLOR_GRAYTEXT},
+    {"GrayText",		COLOR_GRAYTEXT},
+    {"Highlight",		COLOR_HIGHLIGHT},
+    {"HighlightText",		COLOR_HIGHLIGHTTEXT},
+    {"InactiveBorder",		COLOR_INACTIVEBORDER},
+    {"InactiveCaption",		COLOR_INACTIVECAPTION},
+    {"InactiveCaptionText",	COLOR_INACTIVECAPTIONTEXT},
+    {"InfoBackground",		COLOR_INFOBK},
+    {"InfoText",		COLOR_INFOTEXT},
+    {"Menu",			COLOR_MENU},
+    {"MenuText",		COLOR_MENUTEXT},
+    {"Scrollbar",		COLOR_SCROLLBAR},
+    {"Window",			COLOR_WINDOW},
+    {"WindowFrame",		COLOR_WINDOWFRAME},
+    {"WindowText",		COLOR_WINDOWTEXT}
+};
+
+/*
+ * Forward declarations for functions defined later in this file.
+ */
+
+static int		FindSystemColor(const char *name, XColor *colorPtr,
+			    int *indexPtr);
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * FindSystemColor --
+ *
+ *	This routine finds the color entry that corresponds to the specified
+ *	color.
+ *
+ * Results:
+ *	Returns non-zero on success. The RGB values of the XColor will be
+ *	initialized to the proper values on success.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+FindSystemColor(
+    const char *name,		/* Color name. */
+    XColor *colorPtr,		/* Where to store results. */
+    int *indexPtr)		/* Out parameter to store color index. */
+{
+    int l, u, r, i;
+    int index;
+
+    /*
+     * Perform a binary search on the sorted array of colors.
+     */
+
+    l = 0;
+    u = (sizeof(sysColors) / sizeof(sysColors[0])) - 1;
+    while (l <= u) {
+	i = (l + u) / 2;
+	r = strcasecmp(name, sysColors[i].name);
+	if (r == 0) {
+	    break;
+	} else if (r < 0) {
+	    u = i-1;
+	} else {
+	    l = i+1;
+	}
+    }
+    if (l > u) {
+	return 0;
+    }
+
+    *indexPtr = index = sysColors[i].index;
+    colorPtr->pixel = GetSysColor(index);
+
+    /*
+     * x257 is (value<<8 + value) to get the properly bit shifted and padded
+     * value. [Bug: 4919]
+     */
+
+    colorPtr->red = GetRValue(colorPtr->pixel) * 257;
+    colorPtr->green = GetGValue(colorPtr->pixel) * 257;
+    colorPtr->blue = GetBValue(colorPtr->pixel) * 257;
+    colorPtr->flags = DoRed|DoGreen|DoBlue;
+    colorPtr->pad = 0;
+    return 1;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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). */
+{
+    WinColor *winColPtr;
+    XColor color;
+    int index = -1;		/* -1 indicates that this is not an indirect
+				 * system color. */
+
+    /*
+     * Check to see if it is a system color or an X color string. If the color
+     * is found, allocate a new WinColor and store the XColor and the system
+     * color index.
+     */
+
+    if (((strncasecmp(name, "system", 6) == 0)
+	    && FindSystemColor(name+6, &color, &index))
+	    || TkParseColor(Tk_Display(tkwin), Tk_Colormap(tkwin), name,
+		    &color)) {
+	winColPtr = ckalloc(sizeof(WinColor));
+	winColPtr->info.color = color;
+	winColPtr->index = index;
+
+	XAllocColor(Tk_Display(tkwin), Tk_Colormap(tkwin),
+		&winColPtr->info.color);
+ 	return (TkColor *) winColPtr;
+    }
+    return (TkColor *) NULL;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * 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. */
+{
+    WinColor *tkColPtr = ckalloc(sizeof(WinColor));
+
+    tkColPtr->info.color.red = colorPtr->red;
+    tkColPtr->info.color.green = colorPtr->green;
+    tkColPtr->info.color.blue = colorPtr->blue;
+    tkColPtr->info.color.pixel = 0;
+    tkColPtr->index = -1;
+    XAllocColor(Tk_Display(tkwin), Tk_Colormap(tkwin), &tkColPtr->info.color);
+    return (TkColor *) tkColPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkpFreeColor --
+ *
+ *	Release the specified color back to the system.
+ *
+ * Results:
+ *	None
+ *
+ * Side effects:
+ *	Invalidates the colormap cache for the colormap associated with the
+ *	given color.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkpFreeColor(
+    TkColor *tkColPtr)		/* Color to be released. Must have been
+				 * allocated by TkpGetColor or
+				 * TkpGetColorByValue. */
+{
+    Screen *screen = tkColPtr->screen;
+
+    XFreeColors(DisplayOfScreen(screen), tkColPtr->colormap,
+	    &tkColPtr->color.pixel, 1, 0L);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkWinIndexOfColor --
+ *
+ *	Given a color, return the system color index that was used to create
+ *	the color.
+ *
+ * Results:
+ *	If the color was allocated using a system indirect color name, then
+ *	the corresponding GetSysColor() index is returned. Otherwise, -1 is
+ *	returned.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TkWinIndexOfColor(
+    XColor *colorPtr)
+{
+    register WinColor *winColPtr = (WinColor *) colorPtr;
+    if (winColPtr->info.magic == COLOR_MAGIC) {
+	return winColPtr->index;
+    }
+    return -1;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XAllocColor --
+ *
+ *	Find the closest available color to the specified XColor.
+ *
+ * Results:
+ *	Updates the color argument and returns 1 on success. Otherwise returns
+ *	0.
+ *
+ * Side effects:
+ *	Allocates a new color in the palette.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+XAllocColor(
+    Display *display,
+    Colormap colormap,
+    XColor *color)
+{
+    TkWinColormap *cmap = (TkWinColormap *) colormap;
+    PALETTEENTRY entry, closeEntry;
+    HDC dc = GetDC(NULL);
+
+    entry.peRed = (color->red) >> 8;
+    entry.peGreen = (color->green) >> 8;
+    entry.peBlue = (color->blue) >> 8;
+    entry.peFlags = 0;
+
+    if (GetDeviceCaps(dc, RASTERCAPS) & RC_PALETTE) {
+	unsigned long sizePalette = GetDeviceCaps(dc, SIZEPALETTE);
+	UINT newPixel, closePixel;
+	int new;
+	size_t refCount;
+	Tcl_HashEntry *entryPtr;
+	UINT index;
+
+	/*
+	 * Find the nearest existing palette entry.
+	 */
+
+	newPixel = RGB(entry.peRed, entry.peGreen, entry.peBlue);
+	index = GetNearestPaletteIndex(cmap->palette, newPixel);
+	GetPaletteEntries(cmap->palette, index, 1, &closeEntry);
+	closePixel = RGB(closeEntry.peRed, closeEntry.peGreen,
+		closeEntry.peBlue);
+
+	/*
+	 * If this is not a duplicate, allocate a new entry. Note that we may
+	 * get values for index that are above the current size of the
+	 * palette. This happens because we don't shrink the size of the
+	 * palette object when we deallocate colors so there may be stale
+	 * values that match in the upper slots. We should ignore those values
+	 * and just put the new color in as if the colors had not matched.
+	 */
+
+	if ((index >= cmap->size) || (newPixel != closePixel)) {
+	    if (cmap->size == sizePalette) {
+		color->red   = closeEntry.peRed * 257;
+		color->green = closeEntry.peGreen * 257;
+		color->blue  = closeEntry.peBlue * 257;
+		entry = closeEntry;
+		if (index >= cmap->size) {
+		    OutputDebugStringA("XAllocColor: Colormap is bigger than we thought");
+		}
+	    } else {
+		cmap->size++;
+		ResizePalette(cmap->palette, cmap->size);
+		SetPaletteEntries(cmap->palette, cmap->size - 1, 1, &entry);
+	    }
+	}
+
+	color->pixel = PALETTERGB(entry.peRed, entry.peGreen, entry.peBlue);
+	entryPtr = Tcl_CreateHashEntry(&cmap->refCounts,
+		INT2PTR(color->pixel), &new);
+	if (new) {
+	    refCount = 1;
+	} else {
+	    refCount = (size_t)Tcl_GetHashValue(entryPtr) + 1;
+	}
+	Tcl_SetHashValue(entryPtr, (void *)refCount);
+    } else {
+	/*
+	 * Determine what color will actually be used on non-colormap systems.
+	 */
+
+	color->pixel = GetNearestColor(dc,
+		RGB(entry.peRed, entry.peGreen, entry.peBlue));
+	color->red    = GetRValue(color->pixel) * 257;
+	color->green  = GetGValue(color->pixel) * 257;
+	color->blue   = GetBValue(color->pixel) * 257;
+    }
+
+    ReleaseDC(NULL, dc);
+    return 1;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XFreeColors --
+ *
+ *	Deallocate a block of colors.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Removes entries for the current palette and compacts the remaining
+ *	set.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+XFreeColors(
+    Display *display,
+    Colormap colormap,
+    unsigned long *pixels,
+    int npixels,
+    unsigned long planes)
+{
+    TkWinColormap *cmap = (TkWinColormap *) colormap;
+    COLORREF cref;
+    UINT count, index;
+    size_t refCount;
+    int i;
+    PALETTEENTRY entry, *entries;
+    Tcl_HashEntry *entryPtr;
+    HDC dc = GetDC(NULL);
+
+    /*
+     * We don't have to do anything for non-palette devices.
+     */
+
+    if (GetDeviceCaps(dc, RASTERCAPS) & RC_PALETTE) {
+	/*
+	 * This is really slow for large values of npixels.
+	 */
+
+	for (i = 0; i < npixels; i++) {
+	    entryPtr = Tcl_FindHashEntry(&cmap->refCounts, INT2PTR(pixels[i]));
+	    if (!entryPtr) {
+		Tcl_Panic("Tried to free a color that isn't allocated");
+	    }
+	    refCount = (size_t)Tcl_GetHashValue(entryPtr) - 1;
+	    if (refCount == 0) {
+		cref = pixels[i] & 0x00ffffff;
+		index = GetNearestPaletteIndex(cmap->palette, cref);
+		GetPaletteEntries(cmap->palette, index, 1, &entry);
+		if (cref == RGB(entry.peRed, entry.peGreen, entry.peBlue)) {
+		    count = cmap->size - index;
+		    entries = ckalloc(sizeof(PALETTEENTRY) * count);
+		    GetPaletteEntries(cmap->palette, index+1, count, entries);
+		    SetPaletteEntries(cmap->palette, index, count, entries);
+		    ckfree(entries);
+		    cmap->size--;
+		} else {
+		    Tcl_Panic("Tried to free a color that isn't allocated");
+		}
+		Tcl_DeleteHashEntry(entryPtr);
+	    } else {
+		Tcl_SetHashValue(entryPtr, (size_t)refCount);
+	    }
+	}
+    }
+    ReleaseDC(NULL, dc);
+    return Success;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XCreateColormap --
+ *
+ *	Allocate a new colormap.
+ *
+ * Results:
+ *	Returns a newly allocated colormap.
+ *
+ * Side effects:
+ *	Allocates an empty palette and color list.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Colormap
+XCreateColormap(
+    Display *display,
+    Window w,
+    Visual *visual,
+    int alloc)
+{
+    char logPalBuf[sizeof(LOGPALETTE) + 256 * sizeof(PALETTEENTRY)];
+    LOGPALETTE *logPalettePtr;
+    PALETTEENTRY *entryPtr;
+    TkWinColormap *cmap;
+    Tcl_HashEntry *hashPtr;
+    int new;
+    UINT i;
+    HPALETTE sysPal;
+
+    /*
+     * Allocate a starting palette with all of the reserved colors.
+     */
+
+    logPalettePtr = (LOGPALETTE *) logPalBuf;
+    logPalettePtr->palVersion = 0x300;
+    sysPal = (HPALETTE) GetStockObject(DEFAULT_PALETTE);
+    logPalettePtr->palNumEntries = GetPaletteEntries(sysPal, 0, 256,
+	    logPalettePtr->palPalEntry);
+
+    cmap = ckalloc(sizeof(TkWinColormap));
+    cmap->size = logPalettePtr->palNumEntries;
+    cmap->stale = 0;
+    cmap->palette = CreatePalette(logPalettePtr);
+
+    /*
+     * Add hash entries for each of the static colors.
+     */
+
+    Tcl_InitHashTable(&cmap->refCounts, TCL_ONE_WORD_KEYS);
+    for (i = 0; i < logPalettePtr->palNumEntries; i++) {
+	entryPtr = logPalettePtr->palPalEntry + i;
+	hashPtr = Tcl_CreateHashEntry(&cmap->refCounts, INT2PTR(PALETTERGB(
+		entryPtr->peRed, entryPtr->peGreen, entryPtr->peBlue)), &new);
+	Tcl_SetHashValue(hashPtr, INT2PTR(1));
+    }
+
+    return (Colormap)cmap;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XFreeColormap --
+ *
+ *	Frees the resources associated with the given colormap.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Deletes the palette associated with the colormap. Note that the
+ *	palette must not be selected into a device context when this occurs.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+XFreeColormap(
+    Display *display,
+    Colormap colormap)
+{
+    TkWinColormap *cmap = (TkWinColormap *) colormap;
+
+    if (!DeleteObject(cmap->palette)) {
+	Tcl_Panic("Unable to free colormap, palette is still selected");
+    }
+    Tcl_DeleteHashTable(&cmap->refCounts);
+    ckfree(cmap);
+    return Success;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkWinSelectPalette --
+ *
+ *	This function sets up the specified device context with a given
+ *	palette. If the palette is stale, it realizes it in the background
+ *	unless the palette is the current global palette.
+ *
+ * Results:
+ *	Returns the previous palette selected into the device context.
+ *
+ * Side effects:
+ *	May change the system palette.
+ *
+ *----------------------------------------------------------------------
+ */
+
+HPALETTE
+TkWinSelectPalette(
+    HDC dc,
+    Colormap colormap)
+{
+    TkWinColormap *cmap = (TkWinColormap *) colormap;
+    HPALETTE oldPalette;
+
+    oldPalette = SelectPalette(dc, cmap->palette,
+	    (cmap->palette == TkWinGetSystemPalette()) ? FALSE : TRUE);
+    RealizePalette(dc);
+    return oldPalette;
+}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * End:
+ */