Adding upstream version 1.2.2.upstream/1.2.2upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1602 insertions, 0 deletions

diff --git a/src/extension/internal/wmf-print.cpp b/src/extension/internal/wmf-print.cpp
new file mode 100644
index 0000000..cab66d3
--- /dev/null
+++ b/src/extension/internal/wmf-print.cpp
@@ -0,0 +1,1602 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * @brief Windows Metafile printing
+ */
+/* Authors:
+ *   Ulf Erikson <ulferikson@users.sf.net>
+ *   Jon A. Cruz <jon@joncruz.org>
+ *   Abhishek Sharma
+ *   David Mathog
+ *
+ * Copyright (C) 2006-2009 Authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+/*
+ * References:
+ *  - How to Create & Play Enhanced Metafiles in Win32
+ *      http://support.microsoft.com/kb/q145999/
+ *  - INFO: Windows Metafile Functions & Aldus Placeable Metafiles
+ *      http://support.microsoft.com/kb/q66949/
+ *  - Metafile Functions
+ *      http://msdn.microsoft.com/library/en-us/gdi/metafile_0whf.asp
+ *  - Metafile Structures
+ *      http://msdn.microsoft.com/library/en-us/gdi/metafile_5hkj.asp
+ */
+
+#include <2geom/sbasis-to-bezier.h>
+#include <2geom/elliptical-arc.h>
+
+#include <2geom/path.h>
+#include <2geom/pathvector.h>
+#include <2geom/rect.h>
+#include <2geom/curves.h>
+#include "helper/geom.h"
+#include "helper/geom-curves.h"
+
+#include "inkscape-version.h"
+
+#include "util/units.h"
+
+#include "extension/system.h"
+#include "extension/print.h"
+#include "document.h"
+#include "path-prefix.h"
+
+#include "object/sp-pattern.h"
+#include "object/sp-image.h"
+#include "object/sp-gradient.h"
+#include "object/sp-radial-gradient.h"
+#include "object/sp-linear-gradient.h"
+#include "object/sp-root.h"
+#include "object/sp-item.h"
+
+#include "path/path-boolop.h"
+
+#include <2geom/svg-path-parser.h> // to get from SVG text to Geom::Path
+
+#include "display/cairo-utils.h"   // for Inkscape::Pixbuf::PF_CAIRO
+
+#include "wmf-print.h"
+
+#include <cstring>
+#include <3rdparty/libuemf/symbol_convert.h>
+
+namespace Inkscape {
+namespace Extension {
+namespace Internal {
+
+#define PXPERMETER 2835
+#define MAXDISP 2.0 // This should be set in the output dialog.  This is ok for experimenting, no more than 2 pixel deviation.  Not actually used at present
+
+
+/* globals */
+static double       PX2WORLD;   // value set in begin()
+static bool         FixPPTCharPos, FixPPTDashLine, FixPPTGrad2Polys, FixPPTPatternAsHatch;
+static WMFTRACK    *wt               = nullptr;
+static WMFHANDLES  *wht              = nullptr;
+
+void PrintWmf::smuggle_adxky_out(const char *string, int16_t **adx, double *ky, int *rtl, int *ndx, float scale)
+{
+    float       fdx;
+    int         i;
+    int16_t   *ladx;
+    const char *cptr = &string[strlen(string) + 1]; // this works because of the first fake terminator
+
+    *adx = nullptr;
+    *ky  = 0.0;       // set a default value
+    sscanf(cptr, "%7d", ndx);
+    if (!*ndx) {
+        return;    // this could happen with an empty string
+    }
+    cptr += 7;
+    ladx = (int16_t *) malloc(*ndx * sizeof(int16_t));
+    if (!ladx) {
+        g_error("Out of memory");
+    }
+    *adx = ladx;
+    for (i = 0; i < *ndx; i++, cptr += 7, ladx++) {
+        sscanf(cptr, "%7f", &fdx);
+        *ladx = (int16_t) round(fdx * scale);
+    }
+    cptr++; // skip 2nd fake terminator
+    sscanf(cptr, "%7f", &fdx);
+    *ky = fdx;
+    cptr += 7;  // advance over ky and its space
+    sscanf(cptr, "%07d", rtl);
+}
+
+PrintWmf::PrintWmf()
+{
+    // all of the class variables are initialized elsewhere, many in PrintWmf::Begin,
+}
+
+
+unsigned int PrintWmf::setup(Inkscape::Extension::Print * /*mod*/)
+{
+    return TRUE;
+}
+
+
+unsigned int PrintWmf::begin(Inkscape::Extension::Print *mod, SPDocument *doc)
+{
+    char           *rec;
+    gchar const    *utf8_fn = mod->get_param_string("destination");
+
+    // Typically PX2WORLD is 1200/90, using inkscape's default dpi
+    PX2WORLD = 1200.0 / Inkscape::Util::Quantity::convert(1.0, "in", "px");
+    FixPPTCharPos        = mod->get_param_bool("FixPPTCharPos");
+    FixPPTDashLine       = mod->get_param_bool("FixPPTDashLine");
+    FixPPTGrad2Polys     = mod->get_param_bool("FixPPTGrad2Polys");
+    FixPPTPatternAsHatch = mod->get_param_bool("FixPPTPatternAsHatch");
+
+    (void) wmf_start(utf8_fn, 1000000, 250000, &wt);  // Initialize the wt structure
+    (void) wmf_htable_create(128, 128, &wht);         // Initialize the wht structure
+
+    // WMF header the only things that can be set are the page size in inches (w,h) and the dpi
+    // width and height in px
+    _width  = doc->getWidth().value("px");
+    _height = doc->getHeight().value("px");
+
+    // initialize a few global variables
+    hbrush = hpen = 0;
+    htextalignment = U_TA_BASELINE | U_TA_LEFT;
+    use_stroke = use_fill = simple_shape = usebk = false;
+
+    Inkscape::XML::Node *nv = doc->getReprNamedView();
+    if (nv) {
+        const char *p1 = nv->attribute("pagecolor");
+        char *p2;
+        uint32_t lc = strtoul(&p1[1], &p2, 16);    // it looks like "#ABC123"
+        if (*p2) {
+            lc = 0;
+        }
+        gv.bgc = _gethexcolor(lc);
+        gv.rgb[0] = (float) U_RGBAGetR(gv.bgc) / 255.0;
+        gv.rgb[1] = (float) U_RGBAGetG(gv.bgc) / 255.0;
+        gv.rgb[2] = (float) U_RGBAGetB(gv.bgc) / 255.0;
+    }
+
+    bool pageBoundingBox;
+    pageBoundingBox = mod->get_param_bool("pageBoundingBox");
+
+    Geom::Rect d;
+    if (pageBoundingBox) {
+        d = Geom::Rect::from_xywh(0, 0, _width, _height);
+    } else {
+        SPItem *doc_item = doc->getRoot();
+        Geom::OptRect bbox = doc_item->desktopVisualBounds();
+        if (bbox) {
+            d = *bbox;
+        }
+    }
+
+    d *= Geom::Scale(Inkscape::Util::Quantity::convert(1, "px", "in"));  // 90 dpi inside inkscape, wmf file will be 1200 dpi
+
+    /* -1/1200 in next two lines so that WMF read in will write out again at exactly the same size */
+    float dwInchesX = d.width()  - 1.0 / 1200.0;
+    float dwInchesY = d.height() - 1.0 / 1200.0;
+    int   dwPxX     = round(dwInchesX * 1200.0);
+    int   dwPxY     = round(dwInchesY * 1200.0);
+#if 0
+    float dwInchesX = d.width();
+    float dwInchesY = d.height();
+    int   dwPxX     = round(d.width()  * 1200.0);
+    int   dwPxY     = round(d.height() * 1200.0);
+#endif
+
+    U_PAIRF *ps = U_PAIRF_set(dwInchesX, dwInchesY);
+    rec = U_WMRHEADER_set(ps, 1200); // Example: drawing is A4 horizontal,  1200 dpi
+    free(ps);
+    if (!rec) {
+        g_warning("Failed in PrintWmf::begin at WMRHEADER");
+        return -1;
+    }
+    (void) wmf_header_append((U_METARECORD *)rec, wt, 1);
+
+    rec = U_WMRSETWINDOWEXT_set(point16_set(dwPxX, dwPxY));
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at WMRSETWINDOWEXT");
+        return -1;
+    }
+
+    rec = U_WMRSETWINDOWORG_set(point16_set(0, 0));
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at WMRSETWINDOWORG");
+        return -1;
+    }
+
+    rec = U_WMRSETMAPMODE_set(U_MM_ANISOTROPIC);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at WMRSETMAPMODE");
+        return -1;
+    }
+
+    /* set some parameters, else the program that reads the WMF may default to other values */
+
+    rec = U_WMRSETBKMODE_set(U_TRANSPARENT);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at U_WMRSETBKMODE");
+        return -1;
+    }
+
+    hpolyfillmode = U_WINDING;
+    rec = U_WMRSETPOLYFILLMODE_set(U_WINDING);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at U_WMRSETPOLYFILLMODE");
+        return -1;
+    }
+
+    // Text alignment:  (only changed if RTL text is encountered )
+    //   - (x,y) coordinates received by this filter are those of the point where the text
+    //     actually starts, and already takes into account the text object's alignment;
+    //   - for this reason, the WMF text alignment must always be TA_BASELINE|TA_LEFT.
+    rec = U_WMRSETTEXTALIGN_set(U_TA_BASELINE | U_TA_LEFT);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at U_WMRSETTEXTALIGN_set");
+        return -1;
+    }
+
+    htextcolor_rgb[0] = htextcolor_rgb[1] = htextcolor_rgb[2] = 0.0;
+    rec = U_WMRSETTEXTCOLOR_set(U_RGB(0, 0, 0));
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at U_WMRSETTEXTCOLOR_set");
+        return -1;
+    }
+
+    rec = U_WMRSETROP2_set(U_R2_COPYPEN);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at U_WMRSETROP2");
+        return -1;
+    }
+
+    hmiterlimit = 5;
+    rec = wmiterlimit_set(5);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at wmiterlimit_set");
+        return -1;
+    }
+
+
+    // create a pen as object 0.  We never use it (except by mistake).  Its purpose it to make all of the other object indices >=1
+    U_PEN up = U_PEN_set(U_PS_SOLID, 1, colorref_set(0, 0, 0));
+    uint32_t   Pen;
+    rec = wcreatepenindirect_set(&Pen, wht, up);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at wcreatepenindirect_set");
+        return -1;
+    }
+
+    // create a null pen.  If no specific pen is set, this is used
+    up = U_PEN_set(U_PS_NULL, 1, colorref_set(0, 0, 0));
+    rec = wcreatepenindirect_set(&hpen_null, wht, up);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at wcreatepenindirect_set");
+        return -1;
+    }
+    destroy_pen(); // make this pen active
+
+    // create a null brush.  If no specific brush is set, this is used
+    U_WLOGBRUSH lb = U_WLOGBRUSH_set(U_BS_NULL, U_RGB(0, 0, 0), U_HS_HORIZONTAL);
+    rec = wcreatebrushindirect_set(&hbrush_null, wht, lb);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_warning("Failed in PrintWmf::begin at wcreatebrushindirect_set");
+        return -1;
+    }
+    destroy_brush(); // make this brush active
+
+    return 0;
+}
+
+
+unsigned int PrintWmf::finish(Inkscape::Extension::Print * /*mod*/)
+{
+    char *rec;
+    if (!wt) {
+        return 0;
+    }
+
+    // get rid of null brush
+    rec = wdeleteobject_set(&hbrush_null, wht);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::finish at wdeleteobject_set null brush");
+    }
+
+    // get rid of null pen
+    rec = wdeleteobject_set(&hpen_null, wht);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::finish at wdeleteobject_set null pen");
+    }
+
+    // get rid of object 0, which was a pen that was used to shift the other object indices to >=1.
+    hpen = 0;
+    rec = wdeleteobject_set(&hpen, wht);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::finish at wdeleteobject_set filler object");
+    }
+
+    rec = U_WMREOF_set();  // generate the EOF record
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::finish");
+    }
+    (void) wmf_finish(wt); // Finalize and write out the WMF
+    uwmf_free(&wt);              // clean up
+    wmf_htable_free(&wht);          // clean up
+
+    return 0;
+}
+
+// fcolor is defined when gradients are being expanded, it is the color of one stripe or ring.
+int PrintWmf::create_brush(SPStyle const *style, U_COLORREF *fcolor)
+{
+    float         rgb[3];
+    char         *rec;
+    U_WLOGBRUSH   lb;
+    uint32_t      brush, fmode;
+    MFDrawMode    fill_mode;
+    Inkscape::Pixbuf *pixbuf;
+    uint32_t      brushStyle;
+    int           hatchType;
+    U_COLORREF    hatchColor;
+    U_COLORREF    bkColor;
+    uint32_t      width  = 0; // quiets a harmless compiler warning, initialization not otherwise required.
+    uint32_t      height = 0;
+
+    if (!wt) {
+        return 0;
+    }
+
+    // set a default fill in case we can't figure out a better way to do it
+    fmode      = U_ALTERNATE;
+    fill_mode  = DRAW_PAINT;
+    brushStyle = U_BS_SOLID;
+    hatchType  = U_HS_SOLIDCLR;
+    bkColor    = U_RGB(0, 0, 0);
+    if (fcolor) {
+        hatchColor = *fcolor;
+    } else {
+        hatchColor = U_RGB(0, 0, 0);
+    }
+
+    if (!fcolor && style) {
+        if (style->fill.isColor()) {
+            fill_mode = DRAW_PAINT;
+            /* Dead assignment: Value stored to 'opacity' is never read
+            float opacity = SP_SCALE24_TO_FLOAT(style->fill_opacity.value);
+            if (opacity <= 0.0) {
+                opacity = 0.0;    // basically the same as no fill
+            }
+            */
+            style->fill.value.color.get_rgb_floatv(rgb);
+            hatchColor = U_RGB(255 * rgb[0], 255 * rgb[1], 255 * rgb[2]);
+
+            fmode = style->fill_rule.computed == 0 ? U_WINDING : (style->fill_rule.computed == 2 ? U_ALTERNATE : U_ALTERNATE);
+        } else if (SP_IS_PATTERN(SP_STYLE_FILL_SERVER(style))) { // must be paint-server
+            SPPaintServer *paintserver = style->fill.value.href->getObject();
+            SPPattern *pat = SP_PATTERN(paintserver);
+            double dwidth  = pat->width();
+            double dheight = pat->height();
+            width  = dwidth;
+            height = dheight;
+            brush_classify(pat, 0, &pixbuf, &hatchType, &hatchColor, &bkColor);
+            if (pixbuf) {
+                fill_mode = DRAW_IMAGE;
+            } else { // pattern
+                fill_mode = DRAW_PATTERN;
+                if (hatchType == -1) { // Not a standard hatch, so force it to something
+                    hatchType  = U_HS_CROSS;
+                    hatchColor = U_RGB(0xFF, 0xC3, 0xC3);
+                }
+            }
+            if (FixPPTPatternAsHatch) {
+                if (hatchType == -1) { // image or unclassified
+                    fill_mode  = DRAW_PATTERN;
+                    hatchType  = U_HS_DIAGCROSS;
+                    hatchColor = U_RGB(0xFF, 0xC3, 0xC3);
+                }
+            }
+            brushStyle = U_BS_HATCHED;
+        } else if (SP_IS_GRADIENT(SP_STYLE_FILL_SERVER(style))) { // must be a gradient
+            // currently we do not do anything with gradients, the code below just sets the color to the average of the stops
+            SPPaintServer *paintserver = style->fill.value.href->getObject();
+            SPLinearGradient *lg = nullptr;
+            SPRadialGradient *rg = nullptr;
+
+            if (SP_IS_LINEARGRADIENT(paintserver)) {
+                lg = SP_LINEARGRADIENT(paintserver);
+                lg->ensureVector(); // when exporting from commandline, vector is not built
+                fill_mode = DRAW_LINEAR_GRADIENT;
+            } else if (SP_IS_RADIALGRADIENT(paintserver)) {
+                rg = SP_RADIALGRADIENT(paintserver);
+                rg->ensureVector(); // when exporting from commandline, vector is not built
+                fill_mode = DRAW_RADIAL_GRADIENT;
+            } else {
+                // default fill
+            }
+
+            if (rg) {
+                if (FixPPTGrad2Polys) {
+                    return hold_gradient(rg, fill_mode);
+                } else {
+                    hatchColor = avg_stop_color(rg);
+                }
+            } else if (lg) {
+                if (FixPPTGrad2Polys) {
+                    return hold_gradient(lg, fill_mode);
+                } else {
+                    hatchColor = avg_stop_color(lg);
+                }
+            }
+        }
+    } else { // if (!style)
+        // default fill
+    }
+
+    switch (fill_mode) {
+    case DRAW_LINEAR_GRADIENT: // fill with average color unless gradients are converted to slices
+    case DRAW_RADIAL_GRADIENT: // ditto
+    case DRAW_PAINT:
+    case DRAW_PATTERN:
+        // SVG text has no background attribute, so OPAQUE mode ALWAYS cancels after the next draw, otherwise it would mess up future text output.
+        if (usebk) {
+            rec = U_WMRSETBKCOLOR_set(bkColor);
+            if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+                g_error("Fatal programming error in PrintWmf::create_brush at U_WMRSETBKCOLOR_set");
+            }
+            rec = U_WMRSETBKMODE_set(U_OPAQUE);
+            if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+                g_error("Fatal programming error in PrintWmf::create_brush at U_WMRSETBKMODE_set");
+            }
+        }
+        lb   = U_WLOGBRUSH_set(brushStyle, hatchColor, hatchType);
+        rec = wcreatebrushindirect_set(&brush, wht, lb);
+        if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+            g_error("Fatal programming error in PrintWmf::create_brush at createbrushindirect_set");
+        }
+        break;
+    case DRAW_IMAGE:
+        char                *px;
+        char                *rgba_px;
+        uint32_t             cbPx;
+        uint32_t             colortype;
+        U_RGBQUAD           *ct;
+        int                  numCt;
+        U_BITMAPINFOHEADER   Bmih;
+        U_BITMAPINFO        *Bmi;
+        rgba_px = (char *) pixbuf->pixels(); // Do NOT free this!!!
+        colortype = U_BCBM_COLOR32;
+        (void) RGBA_to_DIB(&px, &cbPx, &ct, &numCt,  rgba_px,  width, height, width * 4, colortype, 0, 1);
+        // pixbuf can be either PF_CAIRO or PF_GDK, and these have R and B bytes swapped
+        if (pixbuf->pixelFormat() == Inkscape::Pixbuf::PF_CAIRO) { swapRBinRGBA(px, width * height); }
+        Bmih = bitmapinfoheader_set(width, height, 1, colortype, U_BI_RGB, 0, PXPERMETER, PXPERMETER, numCt, 0);
+        Bmi = bitmapinfo_set(Bmih, ct);
+        rec = wcreatedibpatternbrush_srcdib_set(&brush, wht, U_DIB_RGB_COLORS, Bmi, cbPx, px);
+        if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+            g_error("Fatal programming error in PrintWmf::create_brush at createdibpatternbrushpt_set");
+        }
+        free(px);
+        free(Bmi); // ct will be NULL because of colortype
+        break;
+    }
+
+    hbrush = brush;  // need this later for destroy_brush
+    rec = wselectobject_set(brush, wht);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::create_brush at wselectobject_set");
+    }
+
+    if (fmode != hpolyfillmode) {
+        hpolyfillmode = fmode;
+        rec = U_WMRSETPOLYFILLMODE_set(fmode);
+        if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+            g_error("Fatal programming error in PrintWmf::create_brush at U_WMRSETPOLYFILLMODE_set");
+        }
+    }
+
+    return 0;
+}
+
+
+void PrintWmf::destroy_brush()
+{
+    char *rec;
+    // WMF lets any object be deleted whenever, and the chips fall where they may...
+    if (hbrush) {
+        rec = wdeleteobject_set(&hbrush, wht);
+        if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+            g_error("Fatal programming error in PrintWmf::destroy_brush");
+        }
+        hbrush = 0;
+    }
+
+    // (re)select the null brush
+
+    rec = wselectobject_set(hbrush_null, wht);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::destroy_brush");
+    }
+}
+
+
+int PrintWmf::create_pen(SPStyle const *style, const Geom::Affine &transform)
+{
+    char                *rec       = nullptr;
+    uint32_t             pen;
+    uint32_t             penstyle;
+    U_COLORREF           penColor;
+    U_PEN                up;
+    int                  modstyle;
+
+    if (!wt) {
+        return 0;
+    }
+
+    // set a default stroke  in case we can't figure out a better way to do it
+    penstyle = U_PS_SOLID;
+    modstyle = 0;
+    penColor = U_RGB(0, 0, 0);
+    uint32_t linewidth = 1;
+
+    if (style) {  // override some or all of the preceding
+        float rgb[3];
+
+        // WMF does not support hatched, bitmap, or gradient pens, just set the color.
+        style->stroke.value.color.get_rgb_floatv(rgb);
+        penColor = U_RGB(255 * rgb[0], 255 * rgb[1], 255 * rgb[2]);
+
+        using Geom::X;
+        using Geom::Y;
+
+        Geom::Point zero(0, 0);
+        Geom::Point one(1, 1);
+        Geom::Point p0(zero * transform);
+        Geom::Point p1(one * transform);
+        Geom::Point p(p1 - p0);
+
+        double scale = sqrt((p[X] * p[X]) + (p[Y] * p[Y])) / sqrt(2);
+
+        if (!style->stroke_width.computed) {
+            return 0;   //if width is 0 do not (reset) the pen, it should already be NULL_PEN
+        }
+        linewidth = MAX(1, (uint32_t) round(scale * style->stroke_width.computed * PX2WORLD));
+
+        // most WMF readers will ignore linecap and linejoin, but set them anyway.  Inkscape itself can read them back in.
+
+        if (style->stroke_linecap.computed == 0) {
+            modstyle |= U_PS_ENDCAP_FLAT;
+        } else if (style->stroke_linecap.computed == 1) {
+            modstyle |= U_PS_ENDCAP_ROUND;
+        } else {
+            modstyle |= U_PS_ENDCAP_SQUARE;
+        }
+
+        if (style->stroke_linejoin.computed == 0) {
+            float miterlimit = style->stroke_miterlimit.value;  // This is a ratio.
+            if (miterlimit < 1) {
+                miterlimit = 1;
+            }
+
+            // most WMF readers will ignore miterlimit, but set it anyway.  Inkscape itself can read it back in
+            if ((uint32_t)miterlimit != hmiterlimit) {
+                hmiterlimit = (uint32_t)miterlimit;
+                rec = wmiterlimit_set((uint32_t) miterlimit);
+                if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+                    g_error("Fatal programming error in PrintWmf::create_pen at wmiterlimit_set");
+                }
+            }
+            modstyle |= U_PS_JOIN_MITER;
+        } else if (style->stroke_linejoin.computed == 1) {
+            modstyle |= U_PS_JOIN_ROUND;
+        } else {
+            modstyle |= U_PS_JOIN_BEVEL;
+        }
+
+        if (!style->stroke_dasharray.values.empty()) {
+            if (!FixPPTDashLine) { // if this is set code elsewhere will break dots/dashes into many smaller lines.
+                int n_dash = style->stroke_dasharray.values.size();
+                /* options are dash, dot, dashdot and dashdotdot.  Try to pick the closest one. */
+                int mark_short=INT_MAX;
+                int mark_long =0;
+                int i;
+                for (i=0;i<n_dash;i++) {
+                    int mark = style->stroke_dasharray.values[i].value;
+                    if (mark > mark_long) {
+                        mark_long = mark;
+                    }
+                    if (mark < mark_short) {
+                        mark_short = mark;
+                    }
+                }
+                if(mark_long == mark_short){  // only one mark size
+                   penstyle = U_PS_DOT;
+                }
+                else if (n_dash==2) {
+                   penstyle = U_PS_DASH;
+                }
+                else if (n_dash==4) {
+                   penstyle = U_PS_DASHDOT;
+                }
+                else {
+                   penstyle = U_PS_DASHDOTDOT;
+                }
+            }
+        }
+
+    }
+
+    up  = U_PEN_set(penstyle | modstyle, linewidth, penColor);
+    rec = wcreatepenindirect_set(&pen, wht, up);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::create_pen at wcreatepenindirect_set");
+    }
+
+    rec = wselectobject_set(pen, wht);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::create_pen at wselectobject_set");
+    }
+    hpen = pen;  // need this later for destroy_pen
+
+    return 0;
+}
+
+//  delete the defined pen object
+void PrintWmf::destroy_pen()
+{
+    char *rec = nullptr;
+    // WMF lets any object be deleted whenever, and the chips fall where they may...
+    if (hpen) {
+        rec = wdeleteobject_set(&hpen, wht);
+        if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+            g_error("Fatal programming error in PrintWmf::destroy_pen");
+        }
+        hpen = 0;
+    }
+
+    // (re)select the null pen
+
+    rec = wselectobject_set(hpen_null, wht);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::destroy_pen");
+    }
+}
+
+
+unsigned int PrintWmf::fill(
+    Inkscape::Extension::Print * /*mod*/,
+    Geom::PathVector const &pathv, Geom::Affine const & /*transform*/, SPStyle const *style,
+    Geom::OptRect const &/*pbox*/, Geom::OptRect const &/*dbox*/, Geom::OptRect const &/*bbox*/)
+{
+    using Geom::X;
+    using Geom::Y;
+
+    Geom::Affine tf = m_tr_stack.top();
+
+    use_fill   = true;
+    use_stroke = false;
+
+    fill_transform = tf;
+
+    if (create_brush(style, nullptr)) {
+        /*
+            Handle gradients.  Uses modified livarot as 2geom boolops is currently broken.
+            Can handle gradients with multiple stops.
+
+            The overlap is needed to avoid antialiasing artifacts when edges are not strictly aligned on pixel boundaries.
+            There is an inevitable loss of accuracy saving through an WMF file because of the integer coordinate system.
+            Keep the overlap quite large so that loss of accuracy does not remove an overlap.
+        */
+        destroy_pen();  //this sets the NULL_PEN, otherwise gradient slices may display with boundaries, see longer explanation below
+        Geom::Path cutter;
+        float      rgb[3];
+        U_COLORREF wc, c1, c2;
+        FillRule   frb = SPWR_to_LVFR((SPWindRule) style->fill_rule.computed);
+        double     doff, doff_base, doff_range;
+        double     divisions = 128.0;
+        int        nstops;
+        int        istop =     1;
+        float      opa;                     // opacity at stop
+
+        SPRadialGradient *tg = (SPRadialGradient *)(gv.grad);   // linear/radial are the same here
+        nstops = tg->vector.stops.size();
+        tg->vector.stops[0].color.get_rgb_floatv(rgb);
+        opa    = tg->vector.stops[0].opacity;
+        c1     = U_RGBA(255 * rgb[0], 255 * rgb[1], 255 * rgb[2], 255 * opa);
+        tg->vector.stops[nstops - 1].color.get_rgb_floatv(rgb);
+        opa    = tg->vector.stops[nstops - 1].opacity;
+        c2     = U_RGBA(255 * rgb[0], 255 * rgb[1], 255 * rgb[2], 255 * opa);
+
+        doff       = 0.0;
+        doff_base  = 0.0;
+        doff_range = tg->vector.stops[1].offset;              // next or last stop
+
+        if (gv.mode == DRAW_RADIAL_GRADIENT) {
+            Geom::Point xv = gv.p2 - gv.p1;           // X'  vector
+            Geom::Point yv = gv.p3 - gv.p1;           // Y'  vector
+            Geom::Point xuv = Geom::unit_vector(xv);  // X' unit vector
+            double rx = hypot(xv[X], xv[Y]);
+            double ry = hypot(yv[X], yv[Y]);
+            double range    = fmax(rx, ry);           // length along the gradient
+            double step     = range / divisions;      // adequate approximation for gradient
+            double overlap  = step / 4.0;             // overlap slices slightly
+            double start;
+            double stop;
+            Geom::PathVector pathvc, pathvr;
+
+            /*  radial gradient might stop part way through the shape, fill with outer color from there to "infinity".
+                Do this first so that outer colored ring will overlay it.
+            */
+            pathvc = center_elliptical_hole_as_SVG_PathV(gv.p1, rx * (1.0 - overlap / range), ry * (1.0 - overlap / range), asin(xuv[Y]));
+            pathvr = sp_pathvector_boolop(pathvc, pathv, bool_op_inters, (FillRule) fill_oddEven, frb);
+            wc = weight_opacity(c2);
+            (void) create_brush(style, &wc);
+            print_pathv(pathvr, fill_transform);
+
+            tg->vector.stops[istop].color.get_rgb_floatv(rgb);
+            opa = tg->vector.stops[istop].opacity;
+            c2 = U_RGBA(255 * rgb[0], 255 * rgb[1], 255 * rgb[2], 255 * opa);
+
+            for (start = 0.0; start < range; start += step, doff += 1. / divisions) {
+                stop = start + step + overlap;
+                if (stop > range) {
+                    stop = range;
+                }
+                wc = weight_colors(c1, c2, (doff - doff_base) / (doff_range - doff_base));
+                (void) create_brush(style, &wc);
+
+                pathvc = center_elliptical_ring_as_SVG_PathV(gv.p1, rx * start / range, ry * start / range, rx * stop / range, ry * stop / range, asin(xuv[Y]));
+
+                pathvr = sp_pathvector_boolop(pathvc, pathv, bool_op_inters, (FillRule) fill_nonZero, frb);
+                print_pathv(pathvr, fill_transform);  // show the intersection
+
+                if (doff >= doff_range - doff_base) {
+                    istop++;
+                    if (istop >= nstops) {
+                        continue;    // could happen on a rounding error
+                    }
+                    doff_base  = doff_range;
+                    doff_range = tg->vector.stops[istop].offset;  // next or last stop
+                    c1 = c2;
+                    tg->vector.stops[istop].color.get_rgb_floatv(rgb);
+                    opa = tg->vector.stops[istop].opacity;
+                    c2 = U_RGBA(255 * rgb[0], 255 * rgb[1], 255 * rgb[2], 255 * opa);
+                }
+            }
+        } else if (gv.mode == DRAW_LINEAR_GRADIENT) {
+            Geom::Point uv  = Geom::unit_vector(gv.p2 - gv.p1);  // unit vector
+            Geom::Point puv = uv.cw();                           // perp. to unit vector
+            double range    = Geom::distance(gv.p1, gv.p2);      // length along the gradient
+            double step     = range / divisions;                 // adequate approximation for gradient
+            double overlap  = step / 4.0;                        // overlap slices slightly
+            double start;
+            double stop;
+            Geom::PathVector pathvc, pathvr;
+
+            /* before lower end of gradient, overlap first slice position */
+            wc = weight_opacity(c1);
+            (void) create_brush(style, &wc);
+            pathvc = rect_cutter(gv.p1, uv * (overlap), uv * (-50000.0), puv * 50000.0);
+            pathvr = sp_pathvector_boolop(pathvc, pathv, bool_op_inters, (FillRule) fill_nonZero, frb);
+            print_pathv(pathvr, fill_transform);
+
+            /* after high end of gradient, overlap last slice position */
+            wc = weight_opacity(c2);
+            (void) create_brush(style, &wc);
+            pathvc = rect_cutter(gv.p2, uv * (-overlap), uv * (50000.0), puv * 50000.0);
+            pathvr = sp_pathvector_boolop(pathvc, pathv, bool_op_inters, (FillRule) fill_nonZero, frb);
+            print_pathv(pathvr, fill_transform);
+
+            tg->vector.stops[istop].color.get_rgb_floatv(rgb);
+            opa = tg->vector.stops[istop].opacity;
+            c2 = U_RGBA(255 * rgb[0], 255 * rgb[1], 255 * rgb[2], 255 * opa);
+
+            for (start = 0.0; start < range; start += step, doff += 1. / divisions) {
+                stop = start + step + overlap;
+                if (stop > range) {
+                    stop = range;
+                }
+                pathvc = rect_cutter(gv.p1, uv * start, uv * stop, puv * 50000.0);
+
+                wc = weight_colors(c1, c2, (doff - doff_base) / (doff_range - doff_base));
+                (void) create_brush(style, &wc);
+                Geom::PathVector pathvr = sp_pathvector_boolop(pathvc, pathv, bool_op_inters, (FillRule) fill_nonZero, frb);
+                print_pathv(pathvr, fill_transform);  // show the intersection
+
+                if (doff >= doff_range - doff_base) {
+                    istop++;
+                    if (istop >= nstops) {
+                        continue;    // could happen on a rounding error
+                    }
+                    doff_base  = doff_range;
+                    doff_range = tg->vector.stops[istop].offset;  // next or last stop
+                    c1 = c2;
+                    tg->vector.stops[istop].color.get_rgb_floatv(rgb);
+                    opa = tg->vector.stops[istop].opacity;
+                    c2 = U_RGBA(255 * rgb[0], 255 * rgb[1], 255 * rgb[2], 255 * opa);
+                }
+            }
+        } else {
+            g_error("Fatal programming error in PrintWmf::fill, invalid gradient type detected");
+        }
+        use_fill = false;  // gradients handled, be sure stroke does not use stroke and fill
+    } else {
+        /*
+            Inkscape was not calling create_pen for objects with no border.
+            This was because it never called stroke() (next method).
+            PPT, and presumably others, pick whatever they want for the border if it is not specified, so no border can
+            become a visible border.
+            To avoid this force the pen to NULL_PEN if we can determine that no pen will be needed after the fill.
+        */
+        if (style->stroke.noneSet || style->stroke_width.computed == 0.0) {
+            destroy_pen();  //this sets the NULL_PEN
+        }
+
+        /*  postpone fill in case stroke also required AND all stroke paths closed
+            Dashes converted to line segments will "open" a closed path.
+        */
+        bool all_closed = true;
+        for (const auto & pit : pathv) {
+            for (Geom::Path::const_iterator cit = pit.begin(); cit != pit.end_open(); ++cit) {
+                if (pit.end_default() != pit.end_closed()) {
+                    all_closed = false;
+                }
+            }
+        }
+        if (
+            (style->stroke.isNone() || style->stroke.noneSet || style->stroke_width.computed == 0.0) ||
+            (!style->stroke_dasharray.values.empty()  && FixPPTDashLine)             ||
+            !all_closed
+        ) {
+            print_pathv(pathv, fill_transform);  // do any fills. side effect: clears fill_pathv
+            use_fill = false;
+        }
+    }
+
+    return 0;
+}
+
+
+unsigned int PrintWmf::stroke(
+    Inkscape::Extension::Print * /*mod*/,
+    Geom::PathVector const &pathv, const Geom::Affine &/*transform*/, const SPStyle *style,
+    Geom::OptRect const &/*pbox*/, Geom::OptRect const &/*dbox*/, Geom::OptRect const &/*bbox*/)
+{
+
+    char *rec = nullptr;
+    Geom::Affine tf = m_tr_stack.top();
+
+    use_stroke = true;
+    //  use_fill was set in ::fill, if it is needed, if not, the null brush is used, it should be already set
+
+    if (create_pen(style, tf)) {
+        return 0;
+    }
+
+    if (!style->stroke_dasharray.values.empty()  && FixPPTDashLine) {
+        // convert the path, gets its complete length, and then make a new path with parameter length instead of t
+        Geom::Piecewise<Geom::D2<Geom::SBasis> > tmp_pathpw;  // pathv-> sbasis
+        Geom::Piecewise<Geom::D2<Geom::SBasis> > tmp_pathpw2; // sbasis using arc length parameter
+        Geom::Piecewise<Geom::D2<Geom::SBasis> > tmp_pathpw3; // new (discontinuous) path, composed of dots/dashes
+        Geom::Piecewise<Geom::D2<Geom::SBasis> > first_frag;  // first fragment, will be appended at end
+        int n_dash = style->stroke_dasharray.values.size();
+        int i = 0; //dash index
+        double tlength;                                       // length of tmp_pathpw
+        double slength = 0.0;                                 // start of gragment
+        double elength;                                       // end of gragment
+        for (const auto & i : pathv) {
+            tmp_pathpw.concat(i.toPwSb());
+        }
+        tlength = length(tmp_pathpw, 0.1);
+        tmp_pathpw2 = arc_length_parametrization(tmp_pathpw);
+
+        // go around the dash array repeatedly until the entire path is consumed (but not beyond).
+        while (slength < tlength) {
+            elength = slength + style->stroke_dasharray.values[i++].value;
+            if (elength > tlength) {
+                elength = tlength;
+            }
+            Geom::Piecewise<Geom::D2<Geom::SBasis> > fragment(portion(tmp_pathpw2, slength, elength));
+            if (slength) {
+                tmp_pathpw3.concat(fragment);
+            } else {
+                first_frag = fragment;
+            }
+            slength = elength;
+            slength += style->stroke_dasharray.values[i++].value; // the gap
+            if (i >= n_dash) {
+                i = 0;
+            }
+        }
+        tmp_pathpw3.concat(first_frag); // may merge line around start point
+        Geom::PathVector out_pathv = Geom::path_from_piecewise(tmp_pathpw3, 0.01);
+        print_pathv(out_pathv, tf);
+    } else {
+        print_pathv(pathv, tf);
+    }
+
+    use_stroke = false;
+    use_fill   = false;
+
+    if (usebk) { // OPAQUE was set, revert to TRANSPARENT
+        usebk = false;
+        rec = U_WMRSETBKMODE_set(U_TRANSPARENT);
+        if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+            g_error("Fatal programming error in PrintWmf::stroke at U_WMRSETBKMODE_set");
+        }
+    }
+
+    return 0;
+}
+
+
+// Draws simple_shapes, those with closed WMR_* primitives, like polygons, rectangles and ellipses.
+// These use whatever the current pen/brush are and need not be followed by a FILLPATH or STROKEPATH.
+// For other paths it sets a few flags and returns.
+bool PrintWmf::print_simple_shape(Geom::PathVector const &pathv, const Geom::Affine &transform)
+{
+
+    Geom::PathVector pv = pathv_to_linear(pathv * transform, MAXDISP);
+
+    int nodes  = 0;
+    int moves  = 0;
+    int lines  = 0;
+    int curves = 0;
+    char *rec  = nullptr;
+
+    for (const auto & pit : pv) {
+        moves++;
+        nodes++;
+
+        for (Geom::Path::const_iterator cit = pit.begin(); cit != pit.end_open(); ++cit) {
+            nodes++;
+
+            if (is_straight_curve(*cit)) {
+                lines++;
+            } else if (dynamic_cast<Geom::CubicBezier const *>(&*cit)) {
+                curves++;
+            }
+        }
+    }
+
+    if (!nodes) {
+        return false;
+    }
+
+    U_POINT16 *lpPoints = new U_POINT16[moves + lines + curves * 3];
+    int i = 0;
+
+    /**  For all Subpaths in the <path> */
+
+    for (const auto & pit : pv) {
+        using Geom::X;
+        using Geom::Y;
+
+        Geom::Point p0 = pit.initialPoint();
+
+        p0[X] = (p0[X] * PX2WORLD);
+        p0[Y] = (p0[Y] * PX2WORLD);
+
+        int32_t const x0 = (int32_t) round(p0[X]);
+        int32_t const y0 = (int32_t) round(p0[Y]);
+
+        lpPoints[i].x = x0;
+        lpPoints[i].y = y0;
+        i = i + 1;
+
+        /**  For all segments in the subpath */
+
+        for (Geom::Path::const_iterator cit = pit.begin(); cit != pit.end_open(); ++cit) {
+            if (is_straight_curve(*cit)) {
+                //Geom::Point p0 = cit->initialPoint();
+                Geom::Point p1 = cit->finalPoint();
+
+                //p0[X] = (p0[X] * PX2WORLD);
+                p1[X] = (p1[X] * PX2WORLD);
+                //p0[Y] = (p0[Y] * PX2WORLD);
+                p1[Y] = (p1[Y] * PX2WORLD);
+
+                //int32_t const x0 = (int32_t) round(p0[X]);
+                //int32_t const y0 = (int32_t) round(p0[Y]);
+                int32_t const x1 = (int32_t) round(p1[X]);
+                int32_t const y1 = (int32_t) round(p1[Y]);
+
+                lpPoints[i].x = x1;
+                lpPoints[i].y = y1;
+                i = i + 1;
+            } else if (Geom::CubicBezier const *cubic = dynamic_cast<Geom::CubicBezier const *>(&*cit)) {
+                std::vector<Geom::Point> points = cubic->controlPoints();
+                //Geom::Point p0 = points[0];
+                Geom::Point p1 = points[1];
+                Geom::Point p2 = points[2];
+                Geom::Point p3 = points[3];
+
+                //p0[X] = (p0[X] * PX2WORLD);
+                p1[X] = (p1[X] * PX2WORLD);
+                p2[X] = (p2[X] * PX2WORLD);
+                p3[X] = (p3[X] * PX2WORLD);
+                //p0[Y] = (p0[Y] * PX2WORLD);
+                p1[Y] = (p1[Y] * PX2WORLD);
+                p2[Y] = (p2[Y] * PX2WORLD);
+                p3[Y] = (p3[Y] * PX2WORLD);
+
+                //int32_t const x0 = (int32_t) round(p0[X]);
+                //int32_t const y0 = (int32_t) round(p0[Y]);
+                int32_t const x1 = (int32_t) round(p1[X]);
+                int32_t const y1 = (int32_t) round(p1[Y]);
+                int32_t const x2 = (int32_t) round(p2[X]);
+                int32_t const y2 = (int32_t) round(p2[Y]);
+                int32_t const x3 = (int32_t) round(p3[X]);
+                int32_t const y3 = (int32_t) round(p3[Y]);
+
+                lpPoints[i].x = x1;
+                lpPoints[i].y = y1;
+                lpPoints[i + 1].x = x2;
+                lpPoints[i + 1].y = y2;
+                lpPoints[i + 2].x = x3;
+                lpPoints[i + 2].y = y3;
+                i = i + 3;
+            }
+        }
+    }
+
+    bool done = false;
+    bool closed = (lpPoints[0].x == lpPoints[i - 1].x) && (lpPoints[0].y == lpPoints[i - 1].y);
+    bool polygon = false;
+    bool rectangle = false;
+    bool ellipse = false;
+
+    if (moves == 1 && moves + lines == nodes && closed) {
+        polygon = true;
+        //        if (nodes==5) {                             // disable due to LP Bug 407394
+        //            if (lpPoints[0].x == lpPoints[3].x && lpPoints[1].x == lpPoints[2].x &&
+        //                lpPoints[0].y == lpPoints[1].y && lpPoints[2].y == lpPoints[3].y)
+        //            {
+        //                rectangle = true;
+        //            }
+        //        }
+    } else if (moves == 1 && nodes == 5 && moves + curves == nodes && closed) {
+        //        if (lpPoints[0].x == lpPoints[1].x && lpPoints[1].x == lpPoints[11].x &&
+        //            lpPoints[5].x == lpPoints[6].x && lpPoints[6].x == lpPoints[7].x &&
+        //            lpPoints[2].x == lpPoints[10].x && lpPoints[3].x == lpPoints[9].x && lpPoints[4].x == lpPoints[8].x &&
+        //            lpPoints[2].y == lpPoints[3].y && lpPoints[3].y == lpPoints[4].y &&
+        //            lpPoints[8].y == lpPoints[9].y && lpPoints[9].y == lpPoints[10].y &&
+        //            lpPoints[5].y == lpPoints[1].y && lpPoints[6].y == lpPoints[0].y && lpPoints[7].y == lpPoints[11].y)
+        //        {                                           // disable due to LP Bug 407394
+        //            ellipse = true;
+        //        }
+    }
+
+    if (polygon || ellipse) {
+        // pens and brushes already set by caller, do not touch them
+
+        if (polygon) {
+            if (rectangle) {
+                U_RECT16 rcl = U_RECT16_set((U_POINT16) {
+                    lpPoints[0].x, lpPoints[0].y
+                }, (U_POINT16) {
+                    lpPoints[2].x, lpPoints[2].y
+                });
+                rec = U_WMRRECTANGLE_set(rcl);
+            } else {
+                rec = U_WMRPOLYGON_set(nodes, lpPoints);
+            }
+        } else if (ellipse) {
+            U_RECT16 rcl = U_RECT16_set((U_POINT16) {
+                lpPoints[6].x, lpPoints[3].y
+            }, (U_POINT16) {
+                lpPoints[0].x, lpPoints[9].y
+            });
+            rec = U_WMRELLIPSE_set(rcl);
+        }
+        if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+            g_error("Fatal programming error in PrintWmf::print_simple_shape at retangle/ellipse/polygon");
+        }
+
+        done = true;
+
+    }
+
+    delete[] lpPoints;
+
+    return done;
+}
+
+/** Some parts based on win32.cpp by Lauris Kaplinski <lauris@kaplinski.com>.  Was a part of Inkscape
+    in the past (or will be in the future?)  Not in current trunk. (4/19/2012)
+
+    Limitations of this code:
+    1.  Images lose their rotation, one corner stays in the same place.
+    2.  Transparency is lost on export.  (A limitation of the WMF format.)
+    3.  Probably messes up if row stride != w*4
+    4.  There is still a small memory leak somewhere, possibly in a pixbuf created in a routine
+        that calls this one and passes px, but never removes the rest of the pixbuf.  The first time
+        this is called it leaked 5M (in one test) and each subsequent call leaked around 200K more.
+        If this routine is reduced to
+            if(1)return(0);
+        and called for a single 1280 x 1024 image then the program leaks 11M per call, or roughly the
+        size of two bitmaps.
+*/
+
+unsigned int PrintWmf::image(
+    Inkscape::Extension::Print * /* module */,  /** not used */
+    unsigned char *rgba_px,   /** array of pixel values, Gdk::Pixbuf bitmap format */
+    unsigned int w,      /** width of bitmap */
+    unsigned int h,      /** height of bitmap */
+    unsigned int rs,     /** row stride (normally w*4) */
+    Geom::Affine const &tf_rect,  /** affine transform only used for defining location and size of rect, for all other transforms, use the one from m_tr_stack */
+    SPStyle const * /*style*/)  /** provides indirect link to image object */
+{
+    double x1, y1, dw, dh;
+    char *rec = nullptr;
+    Geom::Affine tf = m_tr_stack.top();
+
+    rec = U_WMRSETSTRETCHBLTMODE_set(U_COLORONCOLOR);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::image at EMRHEADER");
+    }
+
+    x1 = tf_rect[4];
+    y1 = tf_rect[5];
+    dw = ((double) w) * tf_rect[0];
+    dh = ((double) h) * tf_rect[3];
+    Geom::Point pLL(x1, y1);
+    Geom::Point pLL2 = pLL * tf;  //location of LL corner in Inkscape coordinates
+
+    /* adjust scale of w and h.  This works properly when there is no rotation. The values are
+    a bit strange when there is rotation, but since WMF cannot handle rotation in any case, all
+    answers are equally wrong.
+    */
+    Geom::Point pWH(dw, dh);
+    Geom::Point pWH2 = pWH * tf.withoutTranslation();
+
+    char                *px;
+    uint32_t             cbPx;
+    uint32_t             colortype;
+    U_RGBQUAD           *ct;
+    int                  numCt;
+    U_BITMAPINFOHEADER   Bmih;
+    U_BITMAPINFO        *Bmi;
+    colortype = U_BCBM_COLOR32;
+    (void) RGBA_to_DIB(&px, &cbPx, &ct, &numCt, (char *) rgba_px,  w, h, w * 4, colortype, 0, 1);
+    Bmih = bitmapinfoheader_set(w, h, 1, colortype, U_BI_RGB, 0, PXPERMETER, PXPERMETER, numCt, 0);
+    Bmi = bitmapinfo_set(Bmih, ct);
+
+    U_POINT16 Dest  = point16_set(round(pLL2[Geom::X] * PX2WORLD), round(pLL2[Geom::Y] * PX2WORLD));
+    U_POINT16 cDest = point16_set(round(pWH2[Geom::X] * PX2WORLD), round(pWH2[Geom::Y] * PX2WORLD));
+    U_POINT16 Src   = point16_set(0, 0);
+    U_POINT16 cSrc  = point16_set(w, h);
+    rec = U_WMRSTRETCHDIB_set(
+              Dest,                //! Destination UL corner in logical units
+              cDest,               //! Destination W & H in logical units
+              Src,                 //! Source UL corner in logical units
+              cSrc,                //! Source W & H in logical units
+              U_DIB_RGB_COLORS,    //! DIBColors Enumeration
+              U_SRCCOPY,           //! RasterOPeration Enumeration
+              Bmi,                 //! (Optional) bitmapbuffer (U_BITMAPINFO section)
+              h * rs,              //! size in bytes of px
+              px                   //! (Optional) bitmapbuffer (U_BITMAPINFO section)
+          );
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::image at U_WMRSTRETCHDIB_set");
+    }
+    free(px);
+    free(Bmi);
+    if (numCt) {
+        free(ct);
+    }
+    return 0;
+}
+
+// may also be called with a simple_shape or an empty path, whereupon it just returns without doing anything
+unsigned int PrintWmf::print_pathv(Geom::PathVector const &pathv, const Geom::Affine &transform)
+{
+    char       *rec = nullptr;
+    U_POINT16  *pt16hold, *pt16ptr;
+    uint16_t   *n16hold;
+    uint16_t   *n16ptr;
+
+    simple_shape = print_simple_shape(pathv, transform);
+    if (!simple_shape && !pathv.empty()) {
+        // WMF does not have beziers, need to convert to ONLY  linears with something like this:
+        Geom::PathVector pv = pathv_to_linear(pathv * transform, MAXDISP);
+
+        /**  For all Subpaths in the <path> */
+
+        /* If the path consists entirely of closed subpaths use one polypolygon.
+            Otherwise use a mix of  polygon or polyline separately on each path.
+            If the polyline turns out to be single line segments, use a series of MOVETO/LINETO instead,
+            because WMF has no POLYPOLYLINE.
+            The former allows path delimited donuts and the like, which
+            cannot be represented in WMF with polygon or polyline because there is no external way to combine paths
+            as there is in EMF or SVG.
+            For polygons specify the last point the same as the first.  The WMF/EMF manuals say that the
+            reading program SHOULD close the path, which allows a conforming program not to, potentially rendering
+            a closed path as an open one. */
+        int nPolys = 0;
+        int totPoints = 0;
+        for (const auto & pit : pv) {
+            totPoints += 1 + pit.size_default();  // big array, will hold all points, for all polygons.  Size_default ignores first point in each path.
+            if (pit.end_default() == pit.end_closed()) {
+                nPolys++;
+            } else {
+                nPolys = 0;
+                break;
+            }
+        }
+
+        if (nPolys > 1) { // a single polypolygon, a single polygon falls through to the else
+            pt16hold = pt16ptr = (U_POINT16 *) malloc(totPoints * sizeof(U_POINT16));
+            if (!pt16ptr) {
+                return(false);
+            }
+
+            n16hold = n16ptr = (uint16_t *) malloc(nPolys * sizeof(uint16_t));
+            if (!n16ptr) {
+                free(pt16hold);
+                return(false);
+            }
+
+            for (const auto & pit : pv) {
+                using Geom::X;
+                using Geom::Y;
+
+
+                *n16ptr++ = pit.size_default();  // points in the subpath
+
+                /**  For each segment in the subpath */
+
+                Geom::Point p1 = pit.initialPoint(); // This point is special, it isn't in the iterator
+
+                p1[X] = (p1[X] * PX2WORLD);
+                p1[Y] = (p1[Y] * PX2WORLD);
+                *pt16ptr++ = point16_set((int32_t) round(p1[X]), (int32_t) round(p1[Y]));
+
+                for (Geom::Path::const_iterator cit = pit.begin(); cit != pit.end_open(); ++cit) {
+                    Geom::Point p1 = cit->finalPoint();
+
+                    p1[X] = (p1[X] * PX2WORLD);
+                    p1[Y] = (p1[Y] * PX2WORLD);
+                    *pt16ptr++ = point16_set((int32_t) round(p1[X]), (int32_t) round(p1[Y]));
+                }
+
+            }
+            rec = U_WMRPOLYPOLYGON_set(nPolys, n16hold, pt16hold);
+            if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+                g_error("Fatal programming error in PrintWmf::print_pathv at U_WMRPOLYPOLYGON_set");
+            }
+            free(pt16hold);
+            free(n16hold);
+        } else { // one or more polyline or polygons (but not all polygons, that would be the preceding case)
+            for (const auto & pit : pv) {
+                using Geom::X;
+                using Geom::Y;
+
+                /* Malformatted Polylines with a sequence like M L M M L have been seen, the 2nd M does nothing
+                   and that point must not go into the output. */
+                if (!(pit.size_default())) {
+                    continue;
+                }
+                /*  Figure out how many points there are, make an array big enough to hold them, and store
+                    all the points.  This is the same for open or closed path.  This gives the upper bound for
+                    the number of points.  The actual number used is calculated on the fly.
+                */
+                int nPoints = 1 + pit.size_default();
+
+                pt16hold = pt16ptr = (U_POINT16 *) malloc(nPoints * sizeof(U_POINT16));
+                if (!pt16ptr) {
+                    break;
+                }
+
+                /**  For each segment in the subpath */
+
+                Geom::Point p1 = pit.initialPoint(); // This point is special, it isn't in the iterator
+
+                p1[X] = (p1[X] * PX2WORLD);
+                p1[Y] = (p1[Y] * PX2WORLD);
+                *pt16ptr++ = point16_set((int32_t) round(p1[X]), (int32_t) round(p1[Y]));
+                nPoints = 1;
+
+                for (Geom::Path::const_iterator cit = pit.begin(); cit != pit.end_default(); ++cit, nPoints++) {
+                    Geom::Point p1 = cit->finalPoint();
+
+                    p1[X] = (p1[X] * PX2WORLD);
+                    p1[Y] = (p1[Y] * PX2WORLD);
+                    *pt16ptr++ = point16_set((int32_t) round(p1[X]), (int32_t) round(p1[Y]));
+                }
+
+                if (pit.end_default() == pit.end_closed()) {
+                    rec = U_WMRPOLYGON_set(nPoints,  pt16hold);
+                    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+                        g_error("Fatal programming error in PrintWmf::print_pathv at U_WMRPOLYGON_set");
+                    }
+                } else if (nPoints > 2) {
+                    rec = U_WMRPOLYLINE_set(nPoints, pt16hold);
+                    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+                        g_error("Fatal programming error in PrintWmf::print_pathv at U_POLYLINE_set");
+                    }
+                } else if (nPoints == 2) {
+                    rec = U_WMRMOVETO_set(pt16hold[0]);
+                    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+                        g_error("Fatal programming error in PrintWmf::print_pathv at U_WMRMOVETO_set");
+                    }
+                    rec = U_WMRLINETO_set(pt16hold[1]);
+                    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+                        g_error("Fatal programming error in PrintWmf::print_pathv at U_WMRLINETO_set");
+                    }
+                }
+                free(pt16hold);
+            }
+        }
+    }
+
+    // WMF has no fill or stroke commands, the draw does it with active pen/brush
+
+    // clean out brush and pen, but only after all parts of the draw complete
+    if (use_fill) {
+        destroy_brush();
+    }
+    if (use_stroke) {
+        destroy_pen();
+    }
+
+    return TRUE;
+}
+
+
+unsigned int PrintWmf::text(Inkscape::Extension::Print * /*mod*/, char const *text, Geom::Point const &p,
+                            SPStyle const *const style)
+{
+    if (!wt || !text) {
+        return 0;
+    }
+
+    char *rec = nullptr;
+    int ccount, newfont;
+    int fix90n = 0;
+    uint32_t hfont = 0;
+    Geom::Affine tf = m_tr_stack.top();
+    double rot = -1800.0 * std::atan2(tf[1], tf[0]) / M_PI; // 0.1 degree rotation,  - sign for MM_TEXT
+    double rotb = -std::atan2(tf[1], tf[0]);  // rotation for baseline offset for superscript/subscript, used below
+    double dx, dy;
+    double ky;
+
+    // the dx array is smuggled in like: text<nul>w1 w2 w3 ...wn<nul><nul>, where the widths are floats 7 characters wide, including the space
+    int ndx = 0;
+    int rtl = 0;
+    int16_t *adx;
+    smuggle_adxky_out(text, &adx, &ky, &rtl, &ndx, PX2WORLD * std::min(tf.expansionX(), tf.expansionY())); // side effect: free() adx
+
+    uint32_t textalignment;
+    if (rtl > 0) {
+        textalignment = U_TA_BASELINE | U_TA_LEFT;
+    } else {
+        textalignment = U_TA_BASELINE | U_TA_RIGHT | U_TA_RTLREADING;
+    }
+    if (textalignment != htextalignment) {
+        htextalignment = textalignment;
+        rec = U_WMRSETTEXTALIGN_set(textalignment);
+        if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+            g_error("Fatal programming error in PrintWmf::text at U_WMRSETTEXTALIGN_set");
+        }
+    }
+
+    char *text2 = strdup(text);  // because U_Utf8ToUtf16le calls iconv which does not like a const char *
+    uint16_t *unicode_text = U_Utf8ToUtf16le(text2, 0, nullptr);
+    free(text2);
+    //translates Unicode  as Utf16le to NonUnicode, if possible.  If any translate, all will, and all to
+    //the same font, because of code in Layout::print
+    UnicodeToNon(unicode_text, &ccount, &newfont);
+    // The preceding hopefully handled conversions to symbol, wingdings or zapf dingbats.  Now slam everything
+    // else down into latin1, which is all WMF can handle.  If the language isn't English expect terrible results.
+    char *latin1_text = U_Utf16leToLatin1(unicode_text, 0, nullptr);
+    free(unicode_text);
+
+    // in some cases a UTF string may reduce to NO latin1 characters, which returns NULL
+    if(!latin1_text){free(adx); return 0; }
+
+    //PPT gets funky with text within +-1 degree of a multiple of 90, but only for SOME fonts.Snap those to the central value
+    //Some funky ones:  Arial, Times New Roman
+    //Some not funky ones: Symbol and Verdana.
+    //Without a huge table we cannot catch them all, so just the most common problem ones.
+    FontfixParams params;
+
+    if (FixPPTCharPos) {
+        switch (newfont) {
+        case CVTSYM:
+            _lookup_ppt_fontfix("Convert To Symbol", params);
+            break;
+        case CVTZDG:
+            _lookup_ppt_fontfix("Convert To Zapf Dingbats", params);
+            break;
+        case CVTWDG:
+            _lookup_ppt_fontfix("Convert To Wingdings", params);
+            break;
+        default:  //also CVTNON
+            _lookup_ppt_fontfix(style->font_family.value(), params);
+            break;
+        }
+        if (params.f2 != 0 || params.f3 != 0) {
+            int irem = ((int) round(rot)) % 900 ;
+            if (irem <= 9 && irem >= -9) {
+                fix90n = 1; //assume vertical
+                rot  = (double)(((int) round(rot)) - irem);
+                rotb =  rot * M_PI / 1800.0;
+                if (std::abs(rot) == 900.0) {
+                    fix90n = 2;
+                }
+            }
+        }
+    }
+
+    /*
+        Note that text font sizes are stored into the WMF as fairly small integers and that limits their precision.
+        The WMF output files produced here have been designed so that the integer valued pt sizes
+        land right on an integer value in the WMF file, so those are exact.  However, something like 18.1 pt will be
+        somewhat off, so that when it is read back in it becomes 18.11 pt.  (For instance.)
+    */
+    int textheight = round(-style->font_size.computed * PX2WORLD * std::min(tf.expansionX(), tf.expansionY()));
+    if (!hfont) {
+
+        // Get font face name.  Use changed font name if unicode mapped to one
+        // of the special fonts.
+        char *facename;
+        if (!newfont) {
+            facename = U_Utf8ToLatin1(style->font_family.value(), 0, nullptr);
+        } else {
+            facename = U_Utf8ToLatin1(FontName(newfont), 0, nullptr);
+        }
+
+        // Scale the text to the minimum stretch. (It tends to stay within bounding rectangles even if
+        // it was streteched asymmetrically.)  Few applications support text from WMF which is scaled
+        // differently by height/width, so leave lfWidth alone.
+
+        U_FONT *puf = U_FONT_set(
+                          textheight,
+                          0,
+                          round(rot),
+                          round(rot),
+                          _translate_weight(style->font_weight.computed),
+                          (style->font_style.computed == SP_CSS_FONT_STYLE_ITALIC),
+                          style->text_decoration_line.underline,
+                          style->text_decoration_line.line_through,
+                          U_DEFAULT_CHARSET,
+                          U_OUT_DEFAULT_PRECIS,
+                          U_CLIP_DEFAULT_PRECIS,
+                          U_DEFAULT_QUALITY,
+                          U_DEFAULT_PITCH | U_FF_DONTCARE,
+                          facename);
+        free(facename);
+
+        rec  = wcreatefontindirect_set(&hfont, wht, puf);
+        if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+            g_error("Fatal programming error in PrintWmf::text at wcreatefontindirect_set");
+        }
+        free(puf);
+    }
+
+    rec = wselectobject_set(hfont, wht);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::text at wselectobject_set");
+    }
+
+    float rgb[3];
+    style->fill.value.color.get_rgb_floatv(rgb);
+    // only change the text color when it needs to be changed
+    if (memcmp(htextcolor_rgb, rgb, 3 * sizeof(float))) {
+        memcpy(htextcolor_rgb, rgb, 3 * sizeof(float));
+        rec = U_WMRSETTEXTCOLOR_set(U_RGB(255 * rgb[0], 255 * rgb[1], 255 * rgb[2]));
+        if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+            g_error("Fatal programming error in PrintWmf::text at U_WMRSETTEXTCOLOR_set");
+        }
+    }
+
+
+    // Text alignment:
+    //   - (x,y) coordinates received by this filter are those of the point where the text
+    //     actually starts, and already takes into account the text object's alignment;
+    //   - for this reason, the WMF text alignment must always be TA_BASELINE|TA_LEFT.
+    //     this is set at the beginning of the file and never changed
+
+    // Transparent text background, never changes, set at the beginning of the file
+
+    Geom::Point p2 = p * tf;
+
+    //Handle super/subscripts and vertical kerning
+    /*  Previously used this, but vertical kerning was not supported
+        p2[Geom::X] -= style->baseline_shift.computed * std::sin( rotb );
+        p2[Geom::Y] -= style->baseline_shift.computed * std::cos( rotb );
+    */
+    p2[Geom::X] += ky * std::sin(rotb);
+    p2[Geom::Y] += ky * std::cos(rotb);
+
+    //Conditionally handle compensation for PPT WMF import bug (affects PPT 2003-2010, at least)
+    if (FixPPTCharPos) {
+        if (fix90n == 1) { //vertical
+            dx = 0.0;
+            dy = params.f3 * style->font_size.computed * std::cos(rotb);
+        } else if (fix90n == 2) { //horizontal
+            dx = params.f2 * style->font_size.computed * std::sin(rotb);
+            dy = 0.0;
+        } else {
+            dx = params.f1 * style->font_size.computed * std::sin(rotb);
+            dy = params.f1 * style->font_size.computed * std::cos(rotb);
+        }
+        p2[Geom::X] += dx;
+        p2[Geom::Y] += dy;
+    }
+
+    p2[Geom::X] = (p2[Geom::X] * PX2WORLD);
+    p2[Geom::Y] = (p2[Geom::Y] * PX2WORLD);
+
+    int32_t const xpos = (int32_t) round(p2[Geom::X]);
+    int32_t const ypos = (int32_t) round(p2[Geom::Y]);
+
+    // The number of characters in the string is a bit fuzzy.  ndx, the number of entries in adx is
+    // the number of VISIBLE characters, since some may combine from the UTF (8 originally,
+    // now 16) encoding.  Conversely strlen() or wchar16len() would give the absolute number of
+    // encoding characters.  Unclear if emrtext wants the former or the latter but for now assume the former.
+
+    //    This is currently being smuggled in from caller as part of text, works
+    //    MUCH better than the fallback hack below
+    //    uint32_t *adx = dx_set(textheight,  U_FW_NORMAL, slen);  // dx is needed, this makes one up
+    if (rtl > 0) {
+        rec = U_WMREXTTEXTOUT_set((U_POINT16) {
+            (int16_t) xpos, (int16_t) ypos
+        },
+        ndx, U_ETO_NONE, latin1_text, adx, U_RCL16_DEF);
+    } else { // RTL text, U_TA_RTLREADING should be enough, but set this one too just in case
+        rec = U_WMREXTTEXTOUT_set((U_POINT16) {
+            (int16_t) xpos, (int16_t) ypos
+        },
+        ndx, U_ETO_RTLREADING, latin1_text, adx, U_RCL16_DEF);
+    }
+    free(latin1_text);
+    free(adx);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::text at U_WMREXTTEXTOUTW_set");
+    }
+
+    rec = wdeleteobject_set(&hfont, wht);
+    if (!rec || wmf_append((U_METARECORD *)rec, wt, U_REC_FREE)) {
+        g_error("Fatal programming error in PrintWmf::text at wdeleteobject_set");
+    }
+
+    return 0;
+}
+
+void PrintWmf::init()
+{
+    /* WMF print */
+    // clang-format off
+    Inkscape::Extension::build_from_mem(
+        "<inkscape-extension xmlns=\"" INKSCAPE_EXTENSION_URI "\">\n"
+            "<name>Windows Metafile Print</name>\n"
+            "<id>org.inkscape.print.wmf</id>\n"
+            "<param gui-hidden=\"true\" name=\"destination\" type=\"string\"></param>\n"
+            "<param gui-hidden=\"true\" name=\"textToPath\" type=\"bool\">true</param>\n"
+            "<param gui-hidden=\"true\" name=\"pageBoundingBox\" type=\"bool\">true</param>\n"
+            "<param gui-hidden=\"true\" name=\"FixPPTCharPos\" type=\"bool\">false</param>\n"
+            "<param gui-hidden=\"true\" name=\"FixPPTDashLine\" type=\"bool\">false</param>\n"
+            "<param gui-hidden=\"true\" name=\"FixPPTGrad2Polys\" type=\"bool\">false</param>\n"
+            "<param gui-hidden=\"true\" name=\"FixPPTPatternAsHatch\" type=\"bool\">false</param>\n"
+            "<print/>\n"
+        "</inkscape-extension>", new PrintWmf());
+    // clang-format on
+
+    return;
+}
+
+}  /* namespace Internal */
+}  /* namespace Extension */
+}  /* namespace Inkscape */
+
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :