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diff --git a/win/tkWinDraw.c b/win/tkWinDraw.c
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+++ b/win/tkWinDraw.c
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+/*
+ * tkWinDraw.c --
+ *
+ * This file contains the Xlib emulation functions pertaining to
+ * actually drawing objects on a window.
+ *
+ * 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.
+ *
+ * SCCS: @(#) tkWinDraw.c 1.30 97/03/21 11:20:05
+ */
+
+#include "tkWinInt.h"
+
+/*
+ * These macros convert between X's bizarre angle units to radians.
+ */
+
+#define PI 3.14159265358979
+#define XAngleToRadians(a) ((double)(a) / 64 * PI / 180);
+
+/*
+ * Translation table between X gc functions and Win32 raster op modes.
+ */
+
+int tkpWinRopModes[] = {
+ R2_BLACK, /* GXclear */
+ R2_MASKPEN, /* GXand */
+ R2_MASKPENNOT, /* GXandReverse */
+ R2_COPYPEN, /* GXcopy */
+ R2_MASKNOTPEN, /* GXandInverted */
+ R2_NOT, /* GXnoop */
+ R2_XORPEN, /* GXxor */
+ R2_MERGEPEN, /* GXor */
+ R2_NOTMERGEPEN, /* GXnor */
+ R2_NOTXORPEN, /* GXequiv */
+ R2_NOT, /* GXinvert */
+ R2_MERGEPENNOT, /* GXorReverse */
+ R2_NOTCOPYPEN, /* GXcopyInverted */
+ R2_MERGENOTPEN, /* GXorInverted */
+ R2_NOTMASKPEN, /* GXnand */
+ R2_WHITE /* GXset */
+};
+
+/*
+ * Translation table between X gc functions and Win32 BitBlt op modes. Some
+ * of the operations defined in X don't have names, so we have to construct
+ * new opcodes for those functions. This is arcane and probably not all that
+ * useful, but at least it's accurate.
+ */
+
+#define NOTSRCAND (DWORD)0x00220326 /* dest = (NOT source) AND dest */
+#define NOTSRCINVERT (DWORD)0x00990066 /* dest = (NOT source) XOR dest */
+#define SRCORREVERSE (DWORD)0x00DD0228 /* dest = source OR (NOT dest) */
+#define SRCNAND (DWORD)0x007700E6 /* dest = NOT (source AND dest) */
+
+static int bltModes[] = {
+ BLACKNESS, /* GXclear */
+ SRCAND, /* GXand */
+ SRCERASE, /* GXandReverse */
+ SRCCOPY, /* GXcopy */
+ NOTSRCAND, /* GXandInverted */
+ PATCOPY, /* GXnoop */
+ SRCINVERT, /* GXxor */
+ SRCPAINT, /* GXor */
+ NOTSRCERASE, /* GXnor */
+ NOTSRCINVERT, /* GXequiv */
+ DSTINVERT, /* GXinvert */
+ SRCORREVERSE, /* GXorReverse */
+ NOTSRCCOPY, /* GXcopyInverted */
+ MERGEPAINT, /* GXorInverted */
+ SRCNAND, /* GXnand */
+ WHITENESS /* GXset */
+};
+
+/*
+ * The following raster op uses the source bitmap as a mask for the
+ * pattern. This is used to draw in a foreground color but leave the
+ * background color transparent.
+ */
+
+#define MASKPAT 0x00E20746 /* dest = (src & pat) | (!src & dst) */
+
+/*
+ * The following two raster ops are used to copy the foreground and background
+ * bits of a source pattern as defined by a stipple used as the pattern.
+ */
+
+#define COPYFG 0x00CA0749 /* dest = (pat & src) | (!pat & dst) */
+#define COPYBG 0x00AC0744 /* dest = (!pat & src) | (pat & dst) */
+
+/*
+ * Macros used later in the file.
+ */
+
+#define MIN(a,b) ((a>b) ? b : a)
+#define MAX(a,b) ((a<b) ? b : a)
+
+/*
+ * The followng typedef is used to pass Windows GDI drawing functions.
+ */
+
+typedef BOOL (CALLBACK *WinDrawFunc) _ANSI_ARGS_((HDC dc,
+ CONST POINT* points, int npoints));
+
+/*
+ * Forward declarations for procedures defined in this file:
+ */
+
+static POINT * ConvertPoints _ANSI_ARGS_((XPoint *points, int npoints,
+ int mode, RECT *bbox));
+static void DrawOrFillArc _ANSI_ARGS_((Display *display,
+ Drawable d, GC gc, int x, int y,
+ unsigned int width, unsigned int height,
+ int start, int extent, int fill));
+static void RenderObject _ANSI_ARGS_((HDC dc, GC gc,
+ XPoint* points, int npoints, int mode, HPEN pen,
+ WinDrawFunc func));
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkWinGetDrawableDC --
+ *
+ * Retrieve the DC from a drawable.
+ *
+ * Results:
+ * Returns the window DC for windows. Returns a new memory DC
+ * for pixmaps.
+ *
+ * Side effects:
+ * Sets up the palette for the device context, and saves the old
+ * device context state in the passed in TkWinDCState structure.
+ *
+ *----------------------------------------------------------------------
+ */
+
+HDC
+TkWinGetDrawableDC(display, d, state)
+ Display *display;
+ Drawable d;
+ TkWinDCState* state;
+{
+ HDC dc;
+ TkWinDrawable *twdPtr = (TkWinDrawable *)d;
+ Colormap cmap;
+
+ if (twdPtr->type == TWD_WINDOW) {
+ TkWindow *winPtr = twdPtr->window.winPtr;
+
+ dc = GetDC(twdPtr->window.handle);
+ if (winPtr == NULL) {
+ cmap = DefaultColormap(display, DefaultScreen(display));
+ } else {
+ cmap = winPtr->atts.colormap;
+ }
+ } else if (twdPtr->type == TWD_WINDC) {
+ dc = twdPtr->winDC.hdc;
+ cmap = DefaultColormap(display, DefaultScreen(display));
+ } else {
+ dc = CreateCompatibleDC(NULL);
+ SelectObject(dc, twdPtr->bitmap.handle);
+ cmap = twdPtr->bitmap.colormap;
+ }
+ state->palette = TkWinSelectPalette(dc, cmap);
+ return dc;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkWinReleaseDrawableDC --
+ *
+ * Frees the resources associated with a drawable's DC.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Restores the old bitmap handle to the memory DC for pixmaps.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkWinReleaseDrawableDC(d, dc, state)
+ Drawable d;
+ HDC dc;
+ TkWinDCState *state;
+{
+ TkWinDrawable *twdPtr = (TkWinDrawable *)d;
+ SelectPalette(dc, state->palette, TRUE);
+ RealizePalette(dc);
+ if (twdPtr->type == TWD_WINDOW) {
+ ReleaseDC(TkWinGetHWND(d), dc);
+ } else if (twdPtr->type == TWD_BITMAP) {
+ DeleteDC(dc);
+ }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ConvertPoints --
+ *
+ * Convert an array of X points to an array of Win32 points.
+ *
+ * Results:
+ * Returns the converted array of POINTs.
+ *
+ * Side effects:
+ * Allocates a block of memory that should not be freed.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static POINT *
+ConvertPoints(points, npoints, mode, bbox)
+ XPoint *points;
+ int npoints;
+ int mode; /* CoordModeOrigin or CoordModePrevious. */
+ RECT *bbox; /* Bounding box of points. */
+{
+ static POINT *winPoints = NULL; /* Array of points that is reused. */
+ static int nWinPoints = -1; /* Current size of point array. */
+ int i;
+
+ /*
+ * To avoid paying the cost of a malloc on every drawing routine,
+ * we reuse the last array if it is large enough.
+ */
+
+ if (npoints > nWinPoints) {
+ if (winPoints != NULL) {
+ ckfree((char *) winPoints);
+ }
+ winPoints = (POINT *) ckalloc(sizeof(POINT) * npoints);
+ if (winPoints == NULL) {
+ nWinPoints = -1;
+ return NULL;
+ }
+ nWinPoints = npoints;
+ }
+
+ bbox->left = bbox->right = points[0].x;
+ bbox->top = bbox->bottom = points[0].y;
+
+ if (mode == CoordModeOrigin) {
+ for (i = 0; i < npoints; i++) {
+ winPoints[i].x = points[i].x;
+ winPoints[i].y = points[i].y;
+ bbox->left = MIN(bbox->left, winPoints[i].x);
+ bbox->right = MAX(bbox->right, winPoints[i].x);
+ bbox->top = MIN(bbox->top, winPoints[i].y);
+ bbox->bottom = MAX(bbox->bottom, winPoints[i].y);
+ }
+ } else {
+ winPoints[0].x = points[0].x;
+ winPoints[0].y = points[0].y;
+ for (i = 1; i < npoints; i++) {
+ winPoints[i].x = winPoints[i-1].x + points[i].x;
+ winPoints[i].y = winPoints[i-1].y + points[i].y;
+ bbox->left = MIN(bbox->left, winPoints[i].x);
+ bbox->right = MAX(bbox->right, winPoints[i].x);
+ bbox->top = MIN(bbox->top, winPoints[i].y);
+ bbox->bottom = MAX(bbox->bottom, winPoints[i].y);
+ }
+ }
+ return winPoints;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XCopyArea --
+ *
+ * Copies data from one drawable to another using block transfer
+ * routines.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Data is moved from a window or bitmap to a second window or
+ * bitmap.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+XCopyArea(display, src, dest, gc, src_x, src_y, width, height, dest_x, dest_y)
+ Display* display;
+ Drawable src;
+ Drawable dest;
+ GC gc;
+ int src_x, src_y;
+ unsigned int width, height;
+ int dest_x, dest_y;
+{
+ HDC srcDC, destDC;
+ TkWinDCState srcState, destState;
+ TkpClipMask *clipPtr = (TkpClipMask*)gc->clip_mask;
+
+ srcDC = TkWinGetDrawableDC(display, src, &srcState);
+
+ if (src != dest) {
+ destDC = TkWinGetDrawableDC(display, dest, &destState);
+ } else {
+ destDC = srcDC;
+ }
+
+ if (clipPtr && clipPtr->type == TKP_CLIP_REGION) {
+ SelectClipRgn(destDC, (HRGN) clipPtr->value.region);
+ OffsetClipRgn(destDC, gc->clip_x_origin, gc->clip_y_origin);
+ }
+
+ BitBlt(destDC, dest_x, dest_y, width, height, srcDC, src_x, src_y,
+ bltModes[gc->function]);
+
+ SelectClipRgn(destDC, NULL);
+
+ if (src != dest) {
+ TkWinReleaseDrawableDC(dest, destDC, &destState);
+ }
+ TkWinReleaseDrawableDC(src, srcDC, &srcState);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XCopyPlane --
+ *
+ * Copies a bitmap from a source drawable to a destination
+ * drawable. The plane argument specifies which bit plane of
+ * the source contains the bitmap. Note that this implementation
+ * ignores the gc->function.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Changes the destination drawable.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+XCopyPlane(display, src, dest, gc, src_x, src_y, width, height, dest_x,
+ dest_y, plane)
+ Display* display;
+ Drawable src;
+ Drawable dest;
+ GC gc;
+ int src_x, src_y;
+ unsigned int width, height;
+ int dest_x, dest_y;
+ unsigned long plane;
+{
+ HDC srcDC, destDC;
+ TkWinDCState srcState, destState;
+ HBRUSH bgBrush, fgBrush, oldBrush;
+ TkpClipMask *clipPtr = (TkpClipMask*)gc->clip_mask;
+
+ display->request++;
+
+ if (plane != 1) {
+ panic("Unexpected plane specified for XCopyPlane");
+ }
+
+ srcDC = TkWinGetDrawableDC(display, src, &srcState);
+
+ if (src != dest) {
+ destDC = TkWinGetDrawableDC(display, dest, &destState);
+ } else {
+ destDC = srcDC;
+ }
+
+ if (clipPtr == NULL || clipPtr->type == TKP_CLIP_REGION) {
+
+ /*
+ * Case 1: opaque bitmaps. Windows handles the conversion
+ * from one bit to multiple bits by setting 0 to the
+ * foreground color, and 1 to the background color (seems
+ * backwards, but there you are).
+ */
+
+ if (clipPtr && clipPtr->type == TKP_CLIP_REGION) {
+ SelectClipRgn(destDC, (HRGN) clipPtr->value.region);
+ OffsetClipRgn(destDC, gc->clip_x_origin, gc->clip_y_origin);
+ }
+
+ SetBkMode(destDC, OPAQUE);
+ SetBkColor(destDC, gc->foreground);
+ SetTextColor(destDC, gc->background);
+ BitBlt(destDC, dest_x, dest_y, width, height, srcDC, src_x, src_y,
+ SRCCOPY);
+
+ SelectClipRgn(destDC, NULL);
+ } else if (clipPtr->type == TKP_CLIP_PIXMAP) {
+ if (clipPtr->value.pixmap == src) {
+
+ /*
+ * Case 2: transparent bitmaps are handled by setting the
+ * destination to the foreground color whenever the source
+ * pixel is set.
+ */
+
+ fgBrush = CreateSolidBrush(gc->foreground);
+ oldBrush = SelectObject(destDC, fgBrush);
+ BitBlt(destDC, dest_x, dest_y, width, height, srcDC, src_x, src_y,
+ MASKPAT);
+ SelectObject(destDC, oldBrush);
+ DeleteObject(fgBrush);
+ } else {
+
+ /*
+ * Case 3: two arbitrary bitmaps. Copy the source rectangle
+ * into a color pixmap. Use the result as a brush when
+ * copying the clip mask into the destination.
+ */
+
+ HDC memDC, maskDC;
+ HBITMAP bitmap;
+ TkWinDCState maskState;
+
+ fgBrush = CreateSolidBrush(gc->foreground);
+ bgBrush = CreateSolidBrush(gc->background);
+ maskDC = TkWinGetDrawableDC(display, clipPtr->value.pixmap,
+ &maskState);
+ memDC = CreateCompatibleDC(destDC);
+ bitmap = CreateBitmap(width, height, 1, 1, NULL);
+ SelectObject(memDC, bitmap);
+
+ /*
+ * Set foreground bits. We create a new bitmap containing
+ * (source AND mask), then use it to set the foreground color
+ * into the destination.
+ */
+
+ BitBlt(memDC, 0, 0, width, height, srcDC, src_x, src_y, SRCCOPY);
+ BitBlt(memDC, 0, 0, width, height, maskDC,
+ dest_x - gc->clip_x_origin, dest_y - gc->clip_y_origin,
+ SRCAND);
+ oldBrush = SelectObject(destDC, fgBrush);
+ BitBlt(destDC, dest_x, dest_y, width, height, memDC, 0, 0,
+ MASKPAT);
+
+ /*
+ * Set background bits. Same as foreground, except we use
+ * ((NOT source) AND mask) and the background brush.
+ */
+
+ BitBlt(memDC, 0, 0, width, height, srcDC, src_x, src_y,
+ NOTSRCCOPY);
+ BitBlt(memDC, 0, 0, width, height, maskDC,
+ dest_x - gc->clip_x_origin, dest_y - gc->clip_y_origin,
+ SRCAND);
+ SelectObject(destDC, bgBrush);
+ BitBlt(destDC, dest_x, dest_y, width, height, memDC, 0, 0,
+ MASKPAT);
+
+ TkWinReleaseDrawableDC(clipPtr->value.pixmap, maskDC, &maskState);
+ SelectObject(destDC, oldBrush);
+ DeleteDC(memDC);
+ DeleteObject(bitmap);
+ DeleteObject(fgBrush);
+ DeleteObject(bgBrush);
+ }
+ }
+ if (src != dest) {
+ TkWinReleaseDrawableDC(dest, destDC, &destState);
+ }
+ TkWinReleaseDrawableDC(src, srcDC, &srcState);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkPutImage --
+ *
+ * Copies a subimage from an in-memory image to a rectangle of
+ * of the specified drawable.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Draws the image on the specified drawable.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkPutImage(colors, ncolors, display, d, gc, image, src_x, src_y, dest_x,
+ dest_y, width, height)
+ unsigned long *colors; /* Array of pixel values used by this
+ * image. May be NULL. */
+ int ncolors; /* Number of colors used, or 0. */
+ Display* display;
+ Drawable d; /* Destination drawable. */
+ GC gc;
+ XImage* image; /* Source image. */
+ int src_x, src_y; /* Offset of subimage. */
+ int dest_x, dest_y; /* Position of subimage origin in
+ * drawable. */
+ unsigned int width, height; /* Dimensions of subimage. */
+{
+ HDC dc, dcMem;
+ TkWinDCState state;
+ BITMAPINFO *infoPtr;
+ HBITMAP bitmap;
+ char *data;
+
+ display->request++;
+
+ dc = TkWinGetDrawableDC(display, d, &state);
+ SetROP2(dc, tkpWinRopModes[gc->function]);
+ dcMem = CreateCompatibleDC(dc);
+
+ if (image->bits_per_pixel == 1) {
+ /*
+ * If the image isn't in the right format, we have to copy
+ * it into a new buffer in MSBFirst and word-aligned format.
+ */
+
+ if ((image->bitmap_bit_order != MSBFirst)
+ || (image->bitmap_pad != sizeof(WORD))) {
+ data = TkAlignImageData(image, sizeof(WORD), MSBFirst);
+ bitmap = CreateBitmap(image->width, image->height, 1, 1, data);
+ ckfree(data);
+ } else {
+ bitmap = CreateBitmap(image->width, image->height, 1, 1,
+ image->data);
+ }
+ SetTextColor(dc, gc->foreground);
+ SetBkColor(dc, gc->background);
+ } else {
+ int i, usePalette;
+
+ /*
+ * Do not use a palette for TrueColor images.
+ */
+
+ usePalette = (image->bits_per_pixel < 16);
+
+ if (usePalette) {
+ infoPtr = (BITMAPINFO*) ckalloc(sizeof(BITMAPINFOHEADER)
+ + sizeof(RGBQUAD)*ncolors);
+ } else {
+ infoPtr = (BITMAPINFO*) ckalloc(sizeof(BITMAPINFOHEADER));
+ }
+
+ infoPtr->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ infoPtr->bmiHeader.biWidth = image->width;
+
+ /*
+ * The following code works around a bug in Win32s. CreateDIBitmap
+ * fails under Win32s for top-down images. So we have to reverse the
+ * order of the scanlines. If we are not running under Win32s, we can
+ * just declare the image to be top-down.
+ */
+
+ if (tkpIsWin32s) {
+ int y;
+ char *srcPtr, *dstPtr, *temp;
+
+ temp = ckalloc((unsigned) image->bytes_per_line);
+ srcPtr = image->data;
+ dstPtr = image->data+(image->bytes_per_line * (image->height - 1));
+ for (y = 0; y < (image->height/2); y++) {
+ memcpy(temp, srcPtr, image->bytes_per_line);
+ memcpy(srcPtr, dstPtr, image->bytes_per_line);
+ memcpy(dstPtr, temp, image->bytes_per_line);
+ srcPtr += image->bytes_per_line;
+ dstPtr -= image->bytes_per_line;
+ }
+ ckfree(temp);
+ infoPtr->bmiHeader.biHeight = image->height; /* Bottom-up order */
+ } else {
+ infoPtr->bmiHeader.biHeight = -image->height; /* Top-down order */
+ }
+ infoPtr->bmiHeader.biPlanes = 1;
+ infoPtr->bmiHeader.biBitCount = image->bits_per_pixel;
+ infoPtr->bmiHeader.biCompression = BI_RGB;
+ infoPtr->bmiHeader.biSizeImage = 0;
+ infoPtr->bmiHeader.biXPelsPerMeter = 0;
+ infoPtr->bmiHeader.biYPelsPerMeter = 0;
+ infoPtr->bmiHeader.biClrImportant = 0;
+
+ if (usePalette) {
+ infoPtr->bmiHeader.biClrUsed = ncolors;
+ for (i = 0; i < ncolors; i++) {
+ infoPtr->bmiColors[i].rgbBlue = GetBValue(colors[i]);
+ infoPtr->bmiColors[i].rgbGreen = GetGValue(colors[i]);
+ infoPtr->bmiColors[i].rgbRed = GetRValue(colors[i]);
+ infoPtr->bmiColors[i].rgbReserved = 0;
+ }
+ } else {
+ infoPtr->bmiHeader.biClrUsed = 0;
+ }
+ bitmap = CreateDIBitmap(dc, &infoPtr->bmiHeader, CBM_INIT,
+ image->data, infoPtr, DIB_RGB_COLORS);
+ ckfree((char *) infoPtr);
+ }
+ bitmap = SelectObject(dcMem, bitmap);
+ BitBlt(dc, dest_x, dest_y, width, height, dcMem, src_x, src_y, SRCCOPY);
+ DeleteObject(SelectObject(dcMem, bitmap));
+ DeleteDC(dcMem);
+ TkWinReleaseDrawableDC(d, dc, &state);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XFillRectangles --
+ *
+ * Fill multiple rectangular areas in the given drawable.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Draws onto the specified drawable.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+XFillRectangles(display, d, gc, rectangles, nrectangles)
+ Display* display;
+ Drawable d;
+ GC gc;
+ XRectangle* rectangles;
+ int nrectangles;
+{
+ HDC dc;
+ int i;
+ RECT rect;
+ TkWinDCState state;
+ HBRUSH brush;
+
+ if (d == None) {
+ return;
+ }
+
+ dc = TkWinGetDrawableDC(display, d, &state);
+ SetROP2(dc, tkpWinRopModes[gc->function]);
+ brush = CreateSolidBrush(gc->foreground);
+
+ if ((gc->fill_style == FillStippled
+ || gc->fill_style == FillOpaqueStippled)
+ && gc->stipple != None) {
+ TkWinDrawable *twdPtr = (TkWinDrawable *)gc->stipple;
+ HBRUSH oldBrush, stipple;
+ HBITMAP oldBitmap, bitmap;
+ HDC dcMem;
+ HBRUSH bgBrush = CreateSolidBrush(gc->background);
+
+ if (twdPtr->type != TWD_BITMAP) {
+ panic("unexpected drawable type in stipple");
+ }
+
+ /*
+ * Select stipple pattern into destination dc.
+ */
+
+ stipple = CreatePatternBrush(twdPtr->bitmap.handle);
+ SetBrushOrgEx(dc, gc->ts_x_origin, gc->ts_y_origin, NULL);
+ oldBrush = SelectObject(dc, stipple);
+ dcMem = CreateCompatibleDC(dc);
+
+ /*
+ * For each rectangle, create a drawing surface which is the size of
+ * the rectangle and fill it with the background color. Then merge the
+ * result with the stipple pattern.
+ */
+
+ for (i = 0; i < nrectangles; i++) {
+ bitmap = CreateCompatibleBitmap(dc, rectangles[i].width,
+ rectangles[i].height);
+ oldBitmap = SelectObject(dcMem, bitmap);
+ rect.left = 0;
+ rect.top = 0;
+ rect.right = rectangles[i].width;
+ rect.bottom = rectangles[i].height;
+ FillRect(dcMem, &rect, brush);
+ BitBlt(dc, rectangles[i].x, rectangles[i].y, rectangles[i].width,
+ rectangles[i].height, dcMem, 0, 0, COPYFG);
+ if (gc->fill_style == FillOpaqueStippled) {
+ FillRect(dcMem, &rect, bgBrush);
+ BitBlt(dc, rectangles[i].x, rectangles[i].y,
+ rectangles[i].width, rectangles[i].height, dcMem,
+ 0, 0, COPYBG);
+ }
+ SelectObject(dcMem, oldBitmap);
+ DeleteObject(bitmap);
+ }
+
+ DeleteDC(dcMem);
+ SelectObject(dc, oldBrush);
+ DeleteObject(stipple);
+ DeleteObject(bgBrush);
+ } else {
+ for (i = 0; i < nrectangles; i++) {
+ TkWinFillRect(dc, rectangles[i].x, rectangles[i].y,
+ rectangles[i].width, rectangles[i].height, gc->foreground);
+ }
+ }
+ DeleteObject(brush);
+ TkWinReleaseDrawableDC(d, dc, &state);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * RenderObject --
+ *
+ * This function draws a shape using a list of points, a
+ * stipple pattern, and the specified drawing function.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+RenderObject(dc, gc, points, npoints, mode, pen, func)
+ HDC dc;
+ GC gc;
+ XPoint* points;
+ int npoints;
+ int mode;
+ HPEN pen;
+ WinDrawFunc func;
+{
+ RECT rect;
+ HPEN oldPen;
+ HBRUSH oldBrush;
+ POINT *winPoints = ConvertPoints(points, npoints, mode, &rect);
+
+ if ((gc->fill_style == FillStippled
+ || gc->fill_style == FillOpaqueStippled)
+ && gc->stipple != None) {
+
+ TkWinDrawable *twdPtr = (TkWinDrawable *)gc->stipple;
+ HDC dcMem;
+ LONG width, height;
+ HBITMAP oldBitmap;
+ int i;
+ HBRUSH oldMemBrush;
+
+ if (twdPtr->type != TWD_BITMAP) {
+ panic("unexpected drawable type in stipple");
+ }
+
+ /*
+ * Grow the bounding box enough to account for wide lines.
+ */
+
+ if (gc->line_width > 1) {
+ rect.left -= gc->line_width;
+ rect.top -= gc->line_width;
+ rect.right += gc->line_width;
+ rect.bottom += gc->line_width;
+ }
+
+ width = rect.right - rect.left;
+ height = rect.bottom - rect.top;
+
+ /*
+ * Select stipple pattern into destination dc.
+ */
+
+ SetBrushOrgEx(dc, gc->ts_x_origin, gc->ts_y_origin, NULL);
+ oldBrush = SelectObject(dc, CreatePatternBrush(twdPtr->bitmap.handle));
+
+ /*
+ * Create temporary drawing surface containing a copy of the
+ * destination equal in size to the bounding box of the object.
+ */
+
+ dcMem = CreateCompatibleDC(dc);
+ oldBitmap = SelectObject(dcMem, CreateCompatibleBitmap(dc, width,
+ height));
+ oldPen = SelectObject(dcMem, pen);
+ BitBlt(dcMem, 0, 0, width, height, dc, rect.left, rect.top, SRCCOPY);
+
+ /*
+ * Translate the object for rendering in the temporary drawing
+ * surface.
+ */
+
+ for (i = 0; i < npoints; i++) {
+ winPoints[i].x -= rect.left;
+ winPoints[i].y -= rect.top;
+ }
+
+ /*
+ * Draw the object in the foreground color and copy it to the
+ * destination wherever the pattern is set.
+ */
+
+ SetPolyFillMode(dcMem, (gc->fill_rule == EvenOddRule) ? ALTERNATE
+ : WINDING);
+ oldMemBrush = SelectObject(dcMem, CreateSolidBrush(gc->foreground));
+ (*func)(dcMem, winPoints, npoints);
+ BitBlt(dc, rect.left, rect.top, width, height, dcMem, 0, 0, COPYFG);
+
+ /*
+ * If we are rendering an opaque stipple, then draw the polygon in the
+ * background color and copy it to the destination wherever the pattern
+ * is clear.
+ */
+
+ if (gc->fill_style == FillOpaqueStippled) {
+ DeleteObject(SelectObject(dcMem,
+ CreateSolidBrush(gc->background)));
+ (*func)(dcMem, winPoints, npoints);
+ BitBlt(dc, rect.left, rect.top, width, height, dcMem, 0, 0,
+ COPYBG);
+ }
+
+ SelectObject(dcMem, oldPen);
+ DeleteObject(SelectObject(dcMem, oldMemBrush));
+ DeleteObject(SelectObject(dcMem, oldBitmap));
+ DeleteDC(dcMem);
+ } else {
+ oldPen = SelectObject(dc, pen);
+ oldBrush = SelectObject(dc, CreateSolidBrush(gc->foreground));
+ SetROP2(dc, tkpWinRopModes[gc->function]);
+
+ SetPolyFillMode(dc, (gc->fill_rule == EvenOddRule) ? ALTERNATE
+ : WINDING);
+
+ (*func)(dc, winPoints, npoints);
+
+ SelectObject(dc, oldPen);
+ }
+ DeleteObject(SelectObject(dc, oldBrush));
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XDrawLines --
+ *
+ * Draw connected lines.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Renders a series of connected lines.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+XDrawLines(display, d, gc, points, npoints, mode)
+ Display* display;
+ Drawable d;
+ GC gc;
+ XPoint* points;
+ int npoints;
+ int mode;
+{
+ HPEN pen;
+ TkWinDCState state;
+ HDC dc;
+
+ if (d == None) {
+ return;
+ }
+
+ dc = TkWinGetDrawableDC(display, d, &state);
+
+ if (!tkpIsWin32s && (gc->line_width > 1)) {
+ LOGBRUSH lb;
+ DWORD style;
+
+ lb.lbStyle = BS_SOLID;
+ lb.lbColor = gc->foreground;
+ lb.lbHatch = 0;
+
+ style = PS_GEOMETRIC|PS_COSMETIC;
+ switch (gc->cap_style) {
+ case CapNotLast:
+ case CapButt:
+ style |= PS_ENDCAP_FLAT;
+ break;
+ case CapRound:
+ style |= PS_ENDCAP_ROUND;
+ break;
+ default:
+ style |= PS_ENDCAP_SQUARE;
+ break;
+ }
+ switch (gc->join_style) {
+ case JoinMiter:
+ style |= PS_JOIN_MITER;
+ break;
+ case JoinRound:
+ style |= PS_JOIN_ROUND;
+ break;
+ default:
+ style |= PS_JOIN_BEVEL;
+ break;
+ }
+ pen = ExtCreatePen(style, gc->line_width, &lb, 0, NULL);
+ } else {
+ pen = CreatePen(PS_SOLID, gc->line_width, gc->foreground);
+ }
+ RenderObject(dc, gc, points, npoints, mode, pen, Polyline);
+ DeleteObject(pen);
+
+ TkWinReleaseDrawableDC(d, dc, &state);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XFillPolygon --
+ *
+ * Draws a filled polygon.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Draws a filled polygon on the specified drawable.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+XFillPolygon(display, d, gc, points, npoints, shape, mode)
+ Display* display;
+ Drawable d;
+ GC gc;
+ XPoint* points;
+ int npoints;
+ int shape;
+ int mode;
+{
+ HPEN pen;
+ TkWinDCState state;
+ HDC dc;
+
+ if (d == None) {
+ return;
+ }
+
+ dc = TkWinGetDrawableDC(display, d, &state);
+
+ pen = GetStockObject(NULL_PEN);
+ RenderObject(dc, gc, points, npoints, mode, pen, Polygon);
+
+ TkWinReleaseDrawableDC(d, dc, &state);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XDrawRectangle --
+ *
+ * Draws a rectangle.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Draws a rectangle on the specified drawable.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+XDrawRectangle(display, d, gc, x, y, width, height)
+ Display* display;
+ Drawable d;
+ GC gc;
+ int x;
+ int y;
+ unsigned int width;
+ unsigned int height;
+{
+ HPEN pen, oldPen;
+ TkWinDCState state;
+ HBRUSH oldBrush;
+ HDC dc;
+
+ if (d == None) {
+ return;
+ }
+
+ dc = TkWinGetDrawableDC(display, d, &state);
+
+ pen = CreatePen(PS_SOLID, gc->line_width, gc->foreground);
+ oldPen = SelectObject(dc, pen);
+ oldBrush = SelectObject(dc, GetStockObject(NULL_BRUSH));
+ SetROP2(dc, tkpWinRopModes[gc->function]);
+
+ Rectangle(dc, x, y, x+width+1, y+height+1);
+
+ DeleteObject(SelectObject(dc, oldPen));
+ SelectObject(dc, oldBrush);
+ TkWinReleaseDrawableDC(d, dc, &state);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XDrawArc --
+ *
+ * Draw an arc.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Draws an arc on the specified drawable.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+XDrawArc(display, d, gc, x, y, width, height, start, extent)
+ Display* display;
+ Drawable d;
+ GC gc;
+ int x;
+ int y;
+ unsigned int width;
+ unsigned int height;
+ int start;
+ int extent;
+{
+ display->request++;
+
+ DrawOrFillArc(display, d, gc, x, y, width, height, start, extent, 0);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * XFillArc --
+ *
+ * Draw a filled arc.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Draws a filled arc on the specified drawable.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+XFillArc(display, d, gc, x, y, width, height, start, extent)
+ Display* display;
+ Drawable d;
+ GC gc;
+ int x;
+ int y;
+ unsigned int width;
+ unsigned int height;
+ int start;
+ int extent;
+{
+ display->request++;
+
+ DrawOrFillArc(display, d, gc, x, y, width, height, start, extent, 1);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * DrawOrFillArc --
+ *
+ * This procedure handles the rendering of drawn or filled
+ * arcs and chords.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Renders the requested arc.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+DrawOrFillArc(display, d, gc, x, y, width, height, start, extent, fill)
+ Display *display;
+ Drawable d;
+ GC gc;
+ int x, y; /* left top */
+ unsigned int width, height;
+ int start; /* start: three-o'clock (deg*64) */
+ int extent; /* extent: relative (deg*64) */
+ int fill; /* ==0 draw, !=0 fill */
+{
+ HDC dc;
+ HBRUSH brush, oldBrush;
+ HPEN pen, oldPen;
+ TkWinDCState state;
+ int clockwise = (extent < 0); /* non-zero if clockwise */
+ int xstart, ystart, xend, yend;
+ double radian_start, radian_end, xr, yr;
+
+ if (d == None) {
+ return;
+ }
+
+ dc = TkWinGetDrawableDC(display, d, &state);
+
+ SetROP2(dc, tkpWinRopModes[gc->function]);
+
+ /*
+ * Compute the absolute starting and ending angles in normalized radians.
+ * Swap the start and end if drawing clockwise.
+ */
+
+ start = start % (64*360);
+ if (start < 0) {
+ start += (64*360);
+ }
+ extent = (start+extent) % (64*360);
+ if (extent < 0) {
+ extent += (64*360);
+ }
+ if (clockwise) {
+ int tmp = start;
+ start = extent;
+ extent = tmp;
+ }
+ radian_start = XAngleToRadians(start);
+ radian_end = XAngleToRadians(extent);
+
+ /*
+ * Now compute points on the radial lines that define the starting and
+ * ending angles. Be sure to take into account that the y-coordinate
+ * system is inverted.
+ */
+
+ xr = x + width / 2.0;
+ yr = y + height / 2.0;
+ xstart = (int)((xr + cos(radian_start)*width/2.0) + 0.5);
+ ystart = (int)((yr + sin(-radian_start)*height/2.0) + 0.5);
+ xend = (int)((xr + cos(radian_end)*width/2.0) + 0.5);
+ yend = (int)((yr + sin(-radian_end)*height/2.0) + 0.5);
+
+ /*
+ * Now draw a filled or open figure. Note that we have to
+ * increase the size of the bounding box by one to account for the
+ * difference in pixel definitions between X and Windows.
+ */
+
+ pen = CreatePen(PS_SOLID, gc->line_width, gc->foreground);
+ oldPen = SelectObject(dc, pen);
+ if (!fill) {
+ /*
+ * Note that this call will leave a gap of one pixel at the
+ * end of the arc for thin arcs. We can't use ArcTo because
+ * it's only supported under Windows NT.
+ */
+
+ Arc(dc, x, y, x+width+1, y+height+1, xstart, ystart, xend, yend);
+ } else {
+ brush = CreateSolidBrush(gc->foreground);
+ oldBrush = SelectObject(dc, brush);
+ if (gc->arc_mode == ArcChord) {
+ Chord(dc, x, y, x+width+1, y+height+1, xstart, ystart, xend, yend);
+ } else if ( gc->arc_mode == ArcPieSlice ) {
+ Pie(dc, x, y, x+width+1, y+height+1, xstart, ystart, xend, yend);
+ }
+ DeleteObject(SelectObject(dc, oldBrush));
+ }
+ DeleteObject(SelectObject(dc, oldPen));
+ TkWinReleaseDrawableDC(d, dc, &state);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkScrollWindow --
+ *
+ * Scroll a rectangle of the specified window and accumulate
+ * a damage region.
+ *
+ * Results:
+ * Returns 0 if the scroll genereated no additional damage.
+ * Otherwise, sets the region that needs to be repainted after
+ * scrolling and returns 1.
+ *
+ * Side effects:
+ * Scrolls the bits in the window.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TkScrollWindow(tkwin, gc, x, y, width, height, dx, dy, damageRgn)
+ Tk_Window tkwin; /* The window to be scrolled. */
+ GC gc; /* GC for window to be scrolled. */
+ int x, y, width, height; /* Position rectangle to be scrolled. */
+ int dx, dy; /* Distance rectangle should be moved. */
+ TkRegion damageRgn; /* Region to accumulate damage in. */
+{
+ HWND hwnd = TkWinGetHWND(Tk_WindowId(tkwin));
+ RECT scrollRect;
+
+ scrollRect.left = x;
+ scrollRect.top = y;
+ scrollRect.right = x + width;
+ scrollRect.bottom = y + height;
+ return (ScrollWindowEx(hwnd, dx, dy, &scrollRect, NULL, (HRGN) damageRgn,
+ NULL, 0) == NULLREGION) ? 0 : 1;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkWinFillRect --
+ *
+ * This routine fills a rectangle with the foreground color
+ * from the specified GC ignoring all other GC values. This
+ * is the fastest way to fill a drawable with a solid color.
+ *
+ * Results:
+ * None.
+ *
+ * Side effects:
+ * Modifies the contents of the DC drawing surface.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkWinFillRect(dc, x, y, width, height, pixel)
+ HDC dc;
+ int x, y, width, height;
+ int pixel;
+{
+ RECT rect;
+ COLORREF oldColor;
+
+ rect.left = x;
+ rect.top = y;
+ rect.right = x + width;
+ rect.bottom = y + height;
+ oldColor = SetBkColor(dc, (COLORREF)pixel);
+ SetBkMode(dc, OPAQUE);
+ ExtTextOut(dc, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
+ SetBkColor(dc, oldColor);
+}