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-rw-r--r--src/extension/internal/wmf-print.cpp1602
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diff --git a/src/extension/internal/wmf-print.cpp b/src/extension/internal/wmf-print.cpp
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+// 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 :
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-17 21:53:24 +0000