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emf2svg_utils.c
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emf2svg_utils.c
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#ifdef __cplusplus
extern "C" {
#endif
#ifndef DARWIN
#define _POSIX_C_SOURCE 200809L
#endif
#include "emf2svg_private.h"
#include "emf2svg_print.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <iconv.h>
#include <errno.h>
#include <ft2build.h>
#include <fontconfig/fontconfig.h>
#include FT_FREETYPE_H
void U_EMRNOTIMPLEMENTED_draw(const char *name, const char *contents, FILE *out,
drawingStates *states) {
UNUSED(name);
// if (states->verbose){U_EMRNOTIMPLEMENTED_print(contents, states);}
UNUSED(contents);
}
void U_swap4(void *ul, unsigned int count);
//! \endcond
/**
\brief Print rect and rectl objects from Upper Left and Lower Right corner
points.
\param rect U_RECTL object
*/
double _dsign(double v) {
if (v >= 0)
return 1;
else
return -1;
}
void arc_circle_draw(const char *contents, FILE *out, drawingStates *states) {
PU_EMRANGLEARC pEmr = (PU_EMRANGLEARC)(contents);
startPathDraw(states, out);
U_POINTL radii;
int sweep_flag = 0;
int large_arc_flag = 0;
// FIXME calculate the real orientation
if (states->currentDeviceContext.arcdir > 0) {
sweep_flag = 1;
large_arc_flag = 1;
} else {
sweep_flag = 0;
large_arc_flag = 0;
}
radii.x = pEmr->nRadius;
radii.y = pEmr->nRadius;
fprintf(out, "M ");
POINT_D start;
double angle = pEmr->eStartAngle * U_PI / 180;
addNewSegPath(states, SEG_LINE);
start.x = pEmr->nRadius * cos(angle) + pEmr->ptlCenter.x;
start.y = pEmr->nRadius * sin(angle) + pEmr->ptlCenter.y;
point_draw_d(states, start, out);
pointCurrPathAddD(states, start, 0);
addNewSegPath(states, SEG_ARC);
fprintf(out, "A ");
point_draw(states, radii, out);
pointCurrPathAdd(states, radii, 0);
fprintf(out, "0 ");
fprintf(out, "%d %d ", large_arc_flag, sweep_flag);
angle = (pEmr->eStartAngle + pEmr->eSweepAngle) * U_PI / 180;
POINT_D end;
end.x = pEmr->nRadius * cos(angle) + pEmr->ptlCenter.x;
end.y = pEmr->nRadius * sin(angle) + pEmr->ptlCenter.y;
point_draw_d(states, end, out);
pointCurrPathAddD(states, end, 1);
endPathDraw(states, out);
}
void arc_draw(const char *contents, FILE *out, drawingStates *states,
int type) {
PU_EMRARC pEmr = (PU_EMRARC)(contents);
startPathDraw(states, out);
U_POINTL radii;
int sweep_flag = 0;
int large_arc_flag = 0;
// FIXME calculate the real orientation
if (states->currentDeviceContext.arcdir > 0) {
sweep_flag = 1;
large_arc_flag = 1;
} else {
sweep_flag = 0;
large_arc_flag = 0;
}
radii.x = (pEmr->rclBox.right - pEmr->rclBox.left) / 2;
radii.y = (pEmr->rclBox.bottom - pEmr->rclBox.top) / 2;
addNewSegPath(states, SEG_LINE);
fprintf(out, "M ");
POINT_D start = int_el_rad(pEmr->ptlStart, pEmr->rclBox);
point_draw_d(states, start, out);
pointCurrPathAddD(states, start, 0);
addNewSegPath(states, SEG_ARC);
fprintf(out, "A ");
point_draw(states, radii, out);
pointCurrPathAdd(states, radii, 0);
fprintf(out, "0 ");
fprintf(out, "%d %d ", large_arc_flag, sweep_flag);
POINT_D end = int_el_rad(pEmr->ptlEnd, pEmr->rclBox);
point_draw_d(states, end, out);
pointCurrPathAddD(states, end, 1);
switch (type) {
case ARC_PIE:
fprintf(out, "L ");
U_POINTL center;
center.x = (pEmr->rclBox.right + pEmr->rclBox.left) / 2;
center.y = (pEmr->rclBox.bottom + pEmr->rclBox.top) / 2;
point_draw(states, center, out);
addNewSegPath(states, SEG_LINE);
pointCurrPathAdd(states, center, 0);
fprintf(out, "Z ");
addNewSegPath(states, SEG_END);
endFormDraw(states, out);
break;
case ARC_CHORD:
fprintf(out, "Z ");
addNewSegPath(states, SEG_END);
endFormDraw(states, out);
break;
default:
endPathDraw(states, out);
break;
}
}
void basic_stroke(drawingStates *states, FILE *out) {
color_stroke(states, out);
width_stroke(states, out, states->currentDeviceContext.stroke_width);
}
bool checkOutOfEMF(drawingStates *states, intptr_t address) {
if (address > states->endAddress) {
states->Error = true;
return true;
} else {
return false;
}
}
bool checkOutOfOTIndex(drawingStates *states, int64_t index) {
if (index > states->objectTableSize) {
states->Error = true;
return true;
} else {
return false;
}
}
void color_stroke(drawingStates *states, FILE *out) {
fprintf(out, "stroke=\"#%02X%02X%02X\" ",
states->currentDeviceContext.stroke_red,
states->currentDeviceContext.stroke_green,
states->currentDeviceContext.stroke_blue);
}
void copyDeviceContext(EMF_DEVICE_CONTEXT *dest, EMF_DEVICE_CONTEXT *src) {
// copy simple data (int, double...)
*dest = *src;
// copy more complex data (pointers...)
if (src->font_name != NULL) {
dest->font_name =
(char *)calloc(strlen(src->font_name) + 1, sizeof(char));
strcpy(dest->font_name, src->font_name);
}
if (src->font_family != NULL) {
dest->font_family =
(char *)calloc(strlen(src->font_family) + 1, sizeof(char));
strcpy(dest->font_family, src->font_family);
}
copy_path(src->clipRGN, &(dest->clipRGN));
}
void cubic_bezier16_draw(const char *name, const char *contents, FILE *out,
drawingStates *states, int startingPoint) {
UNUSED(name);
unsigned int i;
PU_EMRPOLYBEZIER16 pEmr = (PU_EMRPOLYBEZIER16)(contents);
startPathDraw(states, out);
PU_POINT16 papts = (PU_POINT16)(&(pEmr->apts));
returnOutOfEmf((intptr_t)papts +
(intptr_t)(pEmr->cpts) * sizeof(U_POINT16));
if (startingPoint == 1) {
fprintf(out, "M ");
point16_draw(states, papts[0], out);
addNewSegPath(states, SEG_MOVE);
pointCurrPathAdd16(states, papts[0], 0);
}
const int ctrl1 = (0 + startingPoint) % 3;
const int ctrl2 = (1 + startingPoint) % 3;
const int to = (2 + startingPoint) % 3;
int index = 0;
for (i = startingPoint; i < pEmr->cpts; i++) {
if ((i % 3) == ctrl1) {
index = 0;
addNewSegPath(states, SEG_BEZIER);
pointCurrPathAdd16(states, papts[i], index);
index++;
fprintf(out, "C ");
point16_draw(states, papts[i], out);
} else if ((i % 3) == ctrl2) {
point16_draw(states, papts[i], out);
pointCurrPathAdd16(states, papts[i], index);
index++;
} else if ((i % 3) == to) {
point16_draw(states, papts[i], out);
pointCurrPathAdd16(states, papts[i], index);
index++;
}
}
endPathDraw(states, out);
}
void cubic_bezier_draw(const char *name, const char *contents, FILE *out,
drawingStates *states, int startingPoint) {
UNUSED(name);
unsigned int i;
PU_EMRPOLYBEZIER pEmr = (PU_EMRPOLYBEZIER)(contents);
startPathDraw(states, out);
PU_POINT papts = (PU_POINT)(&(pEmr->aptl));
returnOutOfEmf((intptr_t)papts + (intptr_t)pEmr->cptl * sizeof(U_POINT));
if (startingPoint == 1) {
fprintf(out, "M ");
point_draw(states, papts[0], out);
addNewSegPath(states, SEG_BEZIER);
pointCurrPathAdd(states, papts[0], 0);
}
const int ctrl1 = (0 + startingPoint) % 3;
const int ctrl2 = (1 + startingPoint) % 3;
const int to = (2 + startingPoint) % 3;
int index = 0;
for (i = startingPoint; i < pEmr->cptl; i++) {
if ((i % 3) == ctrl1) {
index = 0;
addNewSegPath(states, SEG_BEZIER);
pointCurrPathAdd(states, papts[i], index);
index++;
fprintf(out, "C ");
point_draw(states, papts[i], out);
} else if ((i % 3) == ctrl2) {
point_draw(states, papts[i], out);
pointCurrPathAdd(states, papts[i], index);
index++;
} else if ((i % 3) == to) {
point_draw(states, papts[i], out);
pointCurrPathAdd(states, papts[i], index);
index++;
}
}
endPathDraw(states, out);
}
void endFormDraw(drawingStates *states, FILE *out) {
if (!(states->inPath)) {
fprintf(out, "\" ");
bool filled = false;
bool stroked = false;
stroke_draw(states, out, &filled, &stroked);
fill_draw(states, out, &filled, &stroked);
clipset_draw(states, out);
if (!filled)
fprintf(out, "fill=\"none\" ");
if (!stroked)
fprintf(out, "stroke=\"none\" ");
fprintf(out, " />\n");
}
}
void endPathDraw(drawingStates *states, FILE *out) {
if (!(states->inPath)) {
fprintf(out, "\" ");
bool filled;
bool stroked;
stroke_draw(states, out, &filled, &stroked);
fprintf(out, " fill=\"none\" />\n");
}
}
void fill_draw(drawingStates *states, FILE *out, bool *filled, bool *stroked) {
if (states->verbose) {
fill_print(states);
}
char *fill_rule = calloc(40, sizeof(char));
switch (states->currentDeviceContext.fill_mode) {
case (U_ALTERNATE):
sprintf(fill_rule, "fill-rule:\"evenodd\" ");
break;
case (U_WINDING):
sprintf(fill_rule, "fill-rule:\"nonzero\" ");
break;
default:
sprintf(fill_rule, " ");
break;
}
switch (states->currentDeviceContext.fill_mode) {
case U_BS_SOLID:
*filled = true;
fprintf(out, "%s", fill_rule);
fprintf(out, "fill=\"#%02X%02X%02X\" ",
states->currentDeviceContext.fill_red,
states->currentDeviceContext.fill_green,
states->currentDeviceContext.fill_blue);
break;
case U_BS_NULL:
fprintf(out, "fill=\"none\" ");
*filled = true;
break;
case U_BS_MONOPATTERN:
fprintf(out, "fill=\"#img-%d-ref\" ",
states->currentDeviceContext.fill_idx);
*filled = true;
break;
case U_BS_HATCHED:
case U_BS_PATTERN:
case U_BS_INDEXED:
case U_BS_DIBPATTERN:
case U_BS_DIBPATTERNPT:
case U_BS_PATTERN8X8:
case U_BS_DIBPATTERN8X8:
default:
// partial
fprintf(out, "fill=\"#%02X%02X%02X\" ",
states->currentDeviceContext.fill_red,
states->currentDeviceContext.fill_green,
states->currentDeviceContext.fill_blue);
*filled = true;
break;
}
free(fill_rule);
return;
}
void freeDeviceContext(EMF_DEVICE_CONTEXT *dc) {
if (dc != NULL) {
if (dc->font_name != NULL)
free(dc->font_name);
if (dc->font_family != NULL)
free(dc->font_family);
free_path(&(dc->clipRGN));
}
}
void freeDeviceContextStack(drawingStates *states) {
EMF_DEVICE_CONTEXT_STACK *stack_entry = states->DeviceContextStack;
while (stack_entry != NULL) {
EMF_DEVICE_CONTEXT_STACK *next_entry = stack_entry->previous;
freeDeviceContext(&(stack_entry->DeviceContext));
free(stack_entry);
stack_entry = next_entry;
}
}
void freeObject(drawingStates *states, uint16_t index) {
if (states->objectTable[index].font_name != NULL)
free(states->objectTable[index].font_name);
if (states->objectTable[index].font_family != NULL)
free(states->objectTable[index].font_family);
states->objectTable[index] = (const emfGraphObject){0};
}
void freeObjectTable(drawingStates *states) {
for (int32_t i = 0; i < (states->objectTableSize + 1); i++) {
freeObject(states, i);
}
}
void freePathStack(pathStack *stack) {
while (stack != NULL) {
// free(stack->pathStruct);
pathStack *tmp = stack;
stack = stack->next;
free(tmp);
}
return;
}
int get_id(drawingStates *states) {
states->uniqId = rand();
return states->uniqId;
}
POINT_D int_el_rad(U_POINTL pt, U_RECTL rect) {
POINT_D center, intersect, radii, pt_no;
center.x = (rect.right + rect.left) / 2;
center.y = (rect.bottom + rect.top) / 2;
radii.x = (rect.right - rect.left) / 2;
radii.y = (rect.bottom - rect.top) / 2;
if ((radii.x == 0) || (radii.y == 0)) {
return center;
}
// change orgin (new origin is ellipse center)
pt_no.x = pt.x - center.x;
pt_no.y = pt.y - center.y;
if (pt_no.x == 0) {
intersect.x = center.x;
intersect.y = _dsign(pt_no.y) * radii.y + center.y;
return intersect;
}
if (pt_no.y == 0) {
intersect.x = _dsign(pt_no.x) * radii.x + center.x;
intersect.y = center.y;
return intersect;
}
// slope of the radial
double slope = pt_no.y / pt_no.x;
// Calculate the intersection.
// With center as the origin:
// * ellipse equation is: (x / radii.x)^2 + (y / radii.y) + 1
// * radial equation is: y = x * slope
// Three part of the calculus:
// * '_dsign(...) *' -> get correct quadrant
// * 'sqrt(...)' -> solve the equation
// * '+ center.x/y' -> back the EMF origin
intersect.x =
_dsign(pt_no.x) *
sqrt(1 / ((pow(1 / radii.x, 2)) + pow((slope / radii.y), 2))) +
center.x;
intersect.y = _dsign(pt_no.y) * sqrt(1 / ((pow(1 / (slope * radii.x), 2)) +
pow((1 / radii.y), 2))) +
center.y;
return intersect;
}
void lineto_draw(const char *name, const char *field1, const char *field2,
const char *contents, FILE *out, drawingStates *states) {
UNUSED(name);
PU_EMRGENERICPAIR pEmr = (PU_EMRGENERICPAIR)(contents);
startPathDraw(states, out);
fprintf(out, "L ");
point_draw(states, pEmr->pair, out);
addNewSegPath(states, SEG_LINE);
pointCurrPathAdd(states, pEmr->pair, 0);
endPathDraw(states, out);
}
void moveto_draw(const char *name, const char *field1, const char *field2,
const char *contents, FILE *out, drawingStates *states) {
UNUSED(name);
PU_EMRGENERICPAIR pEmr = (PU_EMRGENERICPAIR)(contents);
point_draw(states, pEmr->pair, out);
addNewSegPath(states, SEG_MOVE);
pointCurrPathAdd(states, pEmr->pair, 0);
}
void newPathStruct(drawingStates *states) {
pathStack *new_entry = calloc(1, sizeof(pathStack));
if (states->emfStructure.pathStack == NULL) {
states->emfStructure.pathStack = new_entry;
states->emfStructure.pathStackLast = new_entry;
} else {
states->emfStructure.pathStackLast->next = new_entry;
states->emfStructure.pathStackLast = new_entry;
}
}
void no_stroke(drawingStates *states, FILE *out) {
if (states->currentDeviceContext.fill_mode != U_BS_NULL) {
fprintf(out, "stroke-width=\"1px\" ");
fprintf(out, "stroke=\"#%02X%02X%02X\" ",
states->currentDeviceContext.fill_red,
states->currentDeviceContext.fill_green,
states->currentDeviceContext.fill_blue);
} else {
fprintf(out, "stroke=\"none\" ");
fprintf(out, "stroke-width=\"0.0\" ");
}
}
void point16_draw(drawingStates *states, U_POINT16 pt, FILE *out) {
POINT_D ptd = point_cal(states, (double)pt.x, (double)pt.y);
states->cur_x = pt.x;
states->cur_y = pt.y;
fprintf(out, "%.4f,%.4f ", ptd.x, ptd.y);
}
double scaleX(drawingStates *states, double x) {
double ret;
double scalingX;
switch (states->MapMode) {
case U_MM_TEXT:
scalingX = 1.0;
break;
case U_MM_LOMETRIC:
// convert to 0.1 mm to pixel and invert Y
scalingX = states->pxPerMm * 0.1 * 1;
break;
case U_MM_HIMETRIC:
// convert to 0.01 mm to pixel and invert Y
scalingX = states->pxPerMm * 0.01 * 1;
break;
case U_MM_LOENGLISH:
// convert to 0.01 inch to pixel and invert Y
scalingX = states->pxPerMm * 0.01 * mmPerInch * 1;
break;
case U_MM_HIENGLISH:
// convert to 0.001 inch to pixel and invert Y
scalingX = states->pxPerMm * 0.001 * mmPerInch * 1;
break;
case U_MM_TWIPS:
// convert to 1 twips to pixel and invert Y
scalingX = states->pxPerMm / 1440 * mmPerInch * 1;
break;
case U_MM_ISOTROPIC:
scalingX = states->viewPortExX / states->windowExX;
break;
case U_MM_ANISOTROPIC:
scalingX = states->viewPortExX / states->windowExX;
break;
default:
scalingX = 1.0;
}
ret = x * scalingX * states->scaling;
return ret;
}
double scaleY(drawingStates *states, double y) {
double ret;
double scalingY;
switch (states->MapMode) {
case U_MM_TEXT:
scalingY = 1.0;
break;
case U_MM_LOMETRIC:
// convert to 0.1 mm to pixel and invert Y
scalingY = states->pxPerMm * 0.1 * 1;
break;
case U_MM_HIMETRIC:
// convert to 0.01 mm to pixel and invert Y
scalingY = states->pxPerMm * 0.01 * 1;
break;
case U_MM_LOENGLISH:
// convert to 0.01 inch to pixel and invert Y
scalingY = states->pxPerMm * 0.01 * mmPerInch * 1;
break;
case U_MM_HIENGLISH:
// convert to 0.001 inch to pixel and invert Y
scalingY = states->pxPerMm * 0.001 * mmPerInch * 1;
break;
case U_MM_TWIPS:
// convert to 1 twips to pixel and invert Y
scalingY = states->pxPerMm / 1440 * mmPerInch * 1;
break;
case U_MM_ISOTROPIC:
scalingY = states->viewPortExX / states->windowExX;
break;
case U_MM_ANISOTROPIC:
scalingY = states->viewPortExY / states->windowExY;
break;
default:
scalingY = 1.0;
}
ret = y * scalingY * states->scaling;
return ret;
}
POINT_D point_cal(drawingStates *states, double x, double y) {
POINT_D ret;
double scalingX;
double scalingY;
double windowOrgX = 0.0;
double windowOrgY = 0.0;
double viewPortOrgX = 0.0;
double viewPortOrgY = 0.0;
switch (states->MapMode) {
case U_MM_TEXT:
scalingX = 1.0;
scalingY = 1.0;
break;
case U_MM_LOMETRIC:
// convert to 0.1 mm to pixel and invert Y
scalingX = states->pxPerMm * 0.1 * 1;
scalingY = states->pxPerMm * 0.1 * -1;
break;
case U_MM_HIMETRIC:
// convert to 0.01 mm to pixel and invert Y
scalingX = states->pxPerMm * 0.01 * 1;
scalingY = states->pxPerMm * 0.01 * -1;
break;
case U_MM_LOENGLISH:
// convert to 0.01 inch to pixel and invert Y
scalingX = states->pxPerMm * 0.01 * mmPerInch * 1;
scalingY = states->pxPerMm * 0.01 * mmPerInch * -1;
break;
case U_MM_HIENGLISH:
// convert to 0.001 inch to pixel and invert Y
scalingX = states->pxPerMm * 0.001 * mmPerInch * 1;
scalingY = states->pxPerMm * 0.001 * mmPerInch * -1;
break;
case U_MM_TWIPS:
// convert to 1 twips to pixel and invert Y
scalingX = states->pxPerMm / 1440 * mmPerInch * 1;
scalingY = states->pxPerMm / 1440 * mmPerInch * -1;
break;
case U_MM_ISOTROPIC:
scalingX = states->viewPortExX / states->windowExX;
scalingY = scalingX;
windowOrgX = states->windowOrgX;
windowOrgY = states->windowOrgY;
viewPortOrgX = states->viewPortOrgX;
viewPortOrgY = states->viewPortOrgY;
break;
case U_MM_ANISOTROPIC:
scalingX = states->viewPortExX / states->windowExX;
scalingY = states->viewPortExY / states->windowExY;
windowOrgX = states->windowOrgX;
windowOrgY = states->windowOrgY;
viewPortOrgX = states->viewPortOrgX;
viewPortOrgY = states->viewPortOrgY;
break;
default:
scalingX = 1.0;
scalingY = 1.0;
}
ret.x = ((x - windowOrgX) * scalingX + viewPortOrgX) * states->scaling;
ret.y = ((y - windowOrgY) * scalingY + viewPortOrgY) * states->scaling;
return ret;
}
POINT_D point_s(drawingStates *states, U_POINT pt) {
return point_cal(states, (double)pt.x, (double)pt.y);
}
POINT_D point_s16(drawingStates *states, U_POINT16 pt) {
return point_cal(states, (double)pt.x, (double)pt.y);
}
void point_draw(drawingStates *states, U_POINT pt, FILE *out) {
POINT_D ptd = point_cal(states, (double)pt.x, (double)pt.y);
states->cur_x = pt.x;
states->cur_y = pt.y;
fprintf(out, "%.4f,%.4f ", ptd.x, ptd.y);
}
void point_draw_d(drawingStates *states, POINT_D pt, FILE *out) {
POINT_D ptd = point_cal(states, pt.x, pt.y);
states->cur_x = pt.x;
states->cur_y = pt.y;
fprintf(out, "%.4f,%.4f ", ptd.x, ptd.y);
}
void point_draw_raw_d(POINT_D pt, FILE *out) {
fprintf(out, "%.4f,%.4f ", pt.x, pt.y);
}
void polyline16_draw(const char *name, const char *contents, FILE *out,
drawingStates *states, bool polygon) {
UNUSED(name);
unsigned int i;
PU_EMRPOLYBEZIER16 pEmr = (PU_EMRPOLYBEZIER16)(contents);
PU_POINT16 papts = (PU_POINT16)(&(pEmr->apts));
returnOutOfEmf((intptr_t)papts +
(intptr_t)(pEmr->cpts) * sizeof(U_POINT16));
startPathDraw(states, out);
for (i = 0; i < pEmr->cpts; i++) {
if (polygon && i == 0) {
fprintf(out, "M ");
addNewSegPath(states, SEG_MOVE);
} else {
fprintf(out, "L ");
addNewSegPath(states, SEG_LINE);
}
pointCurrPathAdd16(states, papts[i], 0);
point16_draw(states, papts[i], out);
}
endPathDraw(states, out);
}
void polyline_draw(const char *name, const char *contents, FILE *out,
drawingStates *states, bool polygon) {
UNUSED(name);
unsigned int i;
PU_EMRPOLYLINETO pEmr = (PU_EMRPOLYLINETO)(contents);
startPathDraw(states, out);
PU_POINT papts = (PU_POINT)(&(pEmr->aptl));
returnOutOfEmf((intptr_t)papts + (intptr_t)(pEmr->cptl) * sizeof(U_POINT));
for (i = 0; i < pEmr->cptl; i++) {
if (polygon && i == 0) {
fprintf(out, "M ");
addNewSegPath(states, SEG_MOVE);
} else {
fprintf(out, "L ");
addNewSegPath(states, SEG_LINE);
}
point_draw(states, pEmr->aptl[i], out);
pointCurrPathAdd(states, pEmr->aptl[i], 0);
}
endPathDraw(states, out);
}
void polypolygon16_draw(const char *name, const char *contents, FILE *out,
drawingStates *states, bool polygon) {
UNUSED(name);
unsigned int i;
PU_EMRPOLYPOLYLINE16 pEmr = (PU_EMRPOLYPOLYLINE16)(contents);
PU_POINT16 papts = (PU_POINT16)((char *)pEmr->aPolyCounts +
sizeof(uint32_t) * pEmr->nPolys);
returnOutOfEmf((intptr_t)papts +
(intptr_t)(pEmr->cpts) * sizeof(U_POINT16));
int counter = 0;
int polygon_index = 0;
for (i = 0; i < pEmr->cpts; i++) {
if (counter == 0) {
fprintf(out, "M ");
point16_draw(states, papts[i], out);
addNewSegPath(states, SEG_MOVE);
pointCurrPathAdd16(states, papts[i], 0);
} else {
fprintf(out, "L ");
point16_draw(states, papts[i], out);
addNewSegPath(states, SEG_LINE);
pointCurrPathAdd16(states, papts[i], 0);
}
counter++;
if (pEmr->aPolyCounts[polygon_index] == counter) {
if (polygon) {
fprintf(out, "Z ");
addNewSegPath(states, SEG_END);
}
counter = 0;
polygon_index++;
}
}
}
void polypolygon_draw(const char *name, const char *contents, FILE *out,
drawingStates *states, bool polygon) {
UNUSED(name);
unsigned int i;
PU_EMRPOLYPOLYLINE16 pEmr = (PU_EMRPOLYPOLYLINE16)(contents);
PU_POINT papts =
(PU_POINT)((char *)pEmr->aPolyCounts + sizeof(uint32_t) * pEmr->nPolys);
int counter = 0;
int polygon_index = 0;
returnOutOfEmf((intptr_t)papts + (intptr_t)(pEmr->cpts) * sizeof(U_POINT));
for (i = 0; i < pEmr->cpts; i++) {
if (counter == 0) {
fprintf(out, "M ");
point_draw(states, papts[i], out);
addNewSegPath(states, SEG_MOVE);
pointCurrPathAdd(states, papts[i], 0);
} else {
fprintf(out, "L ");
point_draw(states, papts[i], out);
addNewSegPath(states, SEG_LINE);
pointCurrPathAdd(states, papts[i], 0);
}
counter++;
if (pEmr->aPolyCounts[polygon_index] == counter) {
if (polygon) {
fprintf(out, "Z ");
addNewSegPath(states, SEG_END);
}
counter = 0;
polygon_index++;
}
}
}
void rectl_draw(drawingStates *states, FILE *out, U_RECTL rect) {
U_POINT pt;
fprintf(out, "M ");
pt.x = rect.left;
pt.y = rect.top;
addNewSegPath(states, SEG_MOVE);
pointCurrPathAdd(states, pt, 0);
point_draw(states, pt, out);
fprintf(out, "L ");
pt.x = rect.right;
pt.y = rect.top;
addNewSegPath(states, SEG_LINE);
pointCurrPathAdd(states, pt, 0);
point_draw(states, pt, out);
fprintf(out, "L ");
pt.x = rect.right;
pt.y = rect.bottom;
addNewSegPath(states, SEG_LINE);
pointCurrPathAdd(states, pt, 0);
point_draw(states, pt, out);
fprintf(out, "L ");
pt.x = rect.left;
pt.y = rect.bottom;
addNewSegPath(states, SEG_LINE);
pointCurrPathAdd(states, pt, 0);
point_draw(states, pt, out);
fprintf(out, "L ");
pt.x = rect.left;
pt.y = rect.top;
addNewSegPath(states, SEG_LINE);
pointCurrPathAdd(states, pt, 0);
point_draw(states, pt, out);
fprintf(out, "Z ");
addNewSegPath(states, SEG_END);
}
void restoreDeviceContext(drawingStates *states, int32_t index) {
EMF_DEVICE_CONTEXT_STACK *stack_entry = states->DeviceContextStack;
// we recover the 'abs(index)' element of the stack
// we stop if the index was outside the DeviceContextStack
int i = -1;
for (; i > index && stack_entry != NULL; i--) {
if (stack_entry->previous != NULL) {
stack_entry = stack_entry->previous;
} else {
break;
}
}
if (stack_entry == NULL || i != index) {
states->Error = true;
return;
}
// we copy it as the current device context
freeDeviceContext(&(states->currentDeviceContext));
states->currentDeviceContext = (EMF_DEVICE_CONTEXT){0};
copyDeviceContext(&(states->currentDeviceContext),
&(stack_entry->DeviceContext));
}
void saveDeviceContext(drawingStates *states) {
// create the new device context in the stack
EMF_DEVICE_CONTEXT_STACK *new_entry =
(EMF_DEVICE_CONTEXT_STACK *)calloc(1, sizeof(EMF_DEVICE_CONTEXT_STACK));
copyDeviceContext(&(new_entry->DeviceContext),
&(states->currentDeviceContext));
// put the new entry on the stack
new_entry->previous = states->DeviceContextStack;
states->DeviceContextStack = new_entry;
}
void setTransformIdentity(drawingStates *states) {
states->currentDeviceContext.worldTransform.eM11 = 1.0;
states->currentDeviceContext.worldTransform.eM12 = 0.0;
states->currentDeviceContext.worldTransform.eM21 = 0.0;
states->currentDeviceContext.worldTransform.eM22 = 1.0;
states->currentDeviceContext.worldTransform.eDx = 0.0;
states->currentDeviceContext.worldTransform.eDy = 0.0;
}
void startPathDraw(drawingStates *states, FILE *out) {
if (!(states->inPath)) {
fprintf(out, "<%spath ", states->nameSpaceString);
clipset_draw(states, out);
fprintf(out, "d=\"M ");
U_POINT pt;
pt.x = states->cur_x;
pt.y = states->cur_y;
point_draw(states, pt, out);
addNewSegPath(states, SEG_MOVE);
pointCurrPathAdd(states, pt, 0);
}
}
void stroke_draw(drawingStates *states, FILE *out, bool *filled,
bool *stroked) {
float unit_stroke =
states->currentDeviceContext.stroke_width * states->scaling;
float dash_len = unit_stroke * 5;
float dot_len = unit_stroke;
if (states->verbose) {
stroke_print(states);
}
if ((states->currentDeviceContext.stroke_mode & 0x000000FF) == U_PS_NULL) {
// no stroke with the fill color with a with of 1px
no_stroke(states, out);
*stroked = true;
return;
}
// pen type
switch (states->currentDeviceContext.stroke_mode & 0x000F0000) {
case U_PS_COSMETIC:
color_stroke(states, out);
// width_stroke(states, out, 1 / states->scaling);
width_stroke(states, out, 1);
*stroked = true;
break;
case U_PS_GEOMETRIC:
basic_stroke(states, out);
*stroked = true;
break;
}
// line style.
switch (states->currentDeviceContext.stroke_mode & 0x000000FF) {
case U_PS_SOLID:
break;
case U_PS_DASH:
fprintf(out, "stroke-dasharray=\"%.4f,%.4f\" ", dash_len, dash_len);
break;
case U_PS_DOT:
fprintf(out, "stroke-dasharray=\"%.4f,%.4f\" ", dot_len, dot_len);
break;
case U_PS_DASHDOT:
fprintf(out, "stroke-dasharray=\"%.4f,%.4f,%.4f,%.4f\" ", dash_len,
dash_len, dot_len, dash_len);
break;
case U_PS_DASHDOTDOT:
fprintf(out, "stroke-dasharray=\"%.4f,%.4f,%.4f,%.4f,%.4f,%.4f\" ",
dash_len, dash_len, dot_len, dot_len, dot_len, dash_len);
break;
case U_PS_INSIDEFRAME:
case U_PS_USERSTYLE:
case U_PS_ALTERNATE:
default:
// partial
break;
}
// line cap.
switch (states->currentDeviceContext.stroke_mode & 0x00000F00) {
case U_PS_ENDCAP_ROUND:
fprintf(out, " stroke-linecap=\"round\" ");
break;
case U_PS_ENDCAP_SQUARE:
fprintf(out, " stroke-linecap=\"square\" ");
break;
case U_PS_ENDCAP_FLAT:
fprintf(out, " stroke-linecap=\"butt\" ");
break;
default:
break;
}
// line join.
switch (states->currentDeviceContext.stroke_mode & 0x0000F000) {
case U_PS_JOIN_ROUND:
fprintf(out, " stroke-linejoin=\"round\" ");
break;
case U_PS_JOIN_BEVEL:
fprintf(out, " stroke-linejoin=\"bevel\" ");
break;
case U_PS_JOIN_MITER:
fprintf(out, " stroke-linejoin=\"miter\" ");
if (states->currentDeviceContext.miterLimit)
fprintf(out, " stroke-miterlimit=\"%.4f\" ",
states->scaling *
(double)states->currentDeviceContext.miterLimit);
break;
default:
break;
}
}
void text_style_draw(FILE *out, drawingStates *states, POINT_D Org) {
double font_height =
fabs(scaleX(states, states->currentDeviceContext.font_height));
if (states->currentDeviceContext.font_family != NULL)
fprintf(out, "font-family=\"%s\" ",
states->currentDeviceContext.font_family);
fprintf(out, "fill=\"#%02X%02X%02X\" ",
states->currentDeviceContext.text_red,
states->currentDeviceContext.text_green,
states->currentDeviceContext.text_blue);
int orientation = 1;
if (scaleY(states, 1.0) > 0) {
orientation = -1;
} else {
orientation = 1;
}
if (states->currentDeviceContext.font_escapement != 0) {
fprintf(out, "transform=\"rotate(%d, %.4f, %.4f) translate(0, %.4f)\" ",
(orientation *
(int)states->currentDeviceContext.font_escapement / 10),
Org.x, (Org.y + font_height * 0.9), font_height * 0.9);
}
if (states->text_layout == U_LAYOUT_RTL) {
fprintf(out, "writing-mode=\"rl-tb\" ");
}
if (states->currentDeviceContext.font_italic) {
fprintf(out, "font-style=\"italic\" ");
}
fprintf(out, "style =\"white-space:pre;\" ");
if (states->currentDeviceContext.font_underline &&
states->currentDeviceContext.font_strikeout) {
fprintf(out, "text-decoration=\"line-through,underline\" ");
} else if (states->currentDeviceContext.font_underline) {
fprintf(out, "text-decoration=\"underline\" ");
} else if (states->currentDeviceContext.font_strikeout) {
fprintf(out, "text-decoration=\"line-through\" ");
}
if (states->currentDeviceContext.font_weight != 0)
fprintf(out, "font-weight=\"%d\" ",
states->currentDeviceContext.font_weight);
// horizontal position
uint16_t align = states->currentDeviceContext.text_align;
if ((align & U_TA_CENTER) == U_TA_CENTER) {
fprintf(out, "text-anchor=\"middle\" ");
} else if ((align & U_TA_CENTER2) == U_TA_CENTER2) {
fprintf(out, "text-anchor=\"middle\" ");
} else if ((align & U_TA_RIGHT) == U_TA_RIGHT) {
fprintf(out, "text-anchor=\"end\" ");
} else {
fprintf(out, "text-anchor=\"start\" ");
}
// vertical position
if ((align & U_TA_BOTTOM) == U_TA_BOTTOM) {