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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkPaint.h"
#include "SkPath.h"
#include "SkStream.h"
#include "SkTArray.h"
#include "SkTSort.h"
#include "SkTypeface.h"
#include <stdio.h>
enum {
kEmSize = 4096
};
static void output_fixed(FILE* out, SkScalar num) {
SkASSERT(floor(num) == num);
int hex = (int) num * (65536 / kEmSize);
fprintf(out, "0x%08x", hex);
}
static void output_scalar(FILE* out, SkScalar num) {
num /= kEmSize;
if (num == (int) num) {
fprintf(out, "%d", (int) num);
} else {
SkString str;
str.printf("%1.6g", num);
int width = (int) str.size();
const char* cStr = str.c_str();
while (cStr[width - 1] == '0') {
--width;
}
str.resize(width);
fprintf(out, "%sf", str.c_str());
}
}
static void output_points(FILE* out, const SkPoint* pts, int count) {
for (int index = 0; index < count; ++index) {
SkASSERT(floor(pts[index].fX) == pts[index].fX);
output_scalar(out, pts[index].fX);
fprintf(out, ", ");
SkASSERT(floor(pts[index].fY) == pts[index].fY);
output_scalar(out, pts[index].fY);
if (index + 1 < count) {
fprintf(out, ", ");
}
}
fprintf(out, ");\n");
}
const char header[] =
"/*\n"
" * Copyright 2014 Google Inc.\n"
" *\n"
" * Use of this source code is governed by a BSD-style license that can be\n"
" * found in the LICENSE file.\n"
" */\n"
"\n"
"// this was auto-generated by TestFontCreator.cpp\n"
"\n"
"#include \"SkPaint.h\"\n"
"#include \"SkPath.h\"\n"
"#include \"SkTDArray.h\"\n"
"\n"
"namespace sk_tool_utils {\n"
"\n"
"SkPaint::FontMetrics create_font(SkTDArray<SkPath*>& pathArray,\n"
" SkTDArray<SkFixed>& widthArray) {";
int tool_main(int argc, char** argv);
int tool_main(int argc, char** argv) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextAlign(SkPaint::kLeft_Align);
paint.setTextEncoding(SkPaint::kUTF16_TextEncoding);
paint.setTextSize(kEmSize);
SkString filename("resources/DroidSans.ttf");
SkAutoTUnref<SkFILEStream> stream(new SkFILEStream(filename.c_str()));
if (!stream->isValid()) {
SkDebugf("Could not find resources/Roboto-Regular.ttf.\n");
return 1;
}
SkTypeface* typeface = SkTypeface::CreateFromStream(stream);
SkSafeUnref(paint.setTypeface(typeface));
FILE* out = fopen("./out/sk_tool_utils_font.cpp", "w");
fprintf(out, "%s\n", header);
fprintf(out, " SkPath* path;\n");
for (unsigned short index = 0x20; index < 0x7F; ++index) {
SkPath path;
paint.getTextPath((const void*) &index, 2, 0, 0, &path);
SkPath::RawIter iter(path);
uint8_t verb;
SkPoint pts[4];
fprintf(out, " path = SkNEW(SkPath); //");
if (index == '\\') {
fprintf(out, " blackslash\n");
} else if (index == ' ') {
fprintf(out, " space\n");
} else {
fprintf(out, " %c\n", (char) index);
}
fprintf(out, " *pathArray.append() = path;\n");
while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
switch (verb) {
case SkPath::kMove_Verb:
fprintf(out, " path->moveTo(");
output_points(out, &pts[0], 1);
continue;
case SkPath::kLine_Verb:
fprintf(out, " path->lineTo(");
output_points(out, &pts[1], 1);
break;
case SkPath::kQuad_Verb:
fprintf(out, " path->quadTo(");
output_points(out, &pts[1], 2);
break;
case SkPath::kCubic_Verb:
fprintf(out, " path->cubicTo(");
output_points(out, &pts[1], 3);
break;
case SkPath::kClose_Verb:
fprintf(out, " path->close();\n");
break;
default:
SkDEBUGFAIL("bad verb");
return 1;
}
}
SkScalar width;
SkDEBUGCODE(int charCount =) paint.getTextWidths((const void*) &index, 2, &width);
SkASSERT(charCount == 1);
fprintf(out, " *widthArray.append() = ");
output_fixed(out, width);
fprintf(out, ";\n\n");
}
SkPaint::FontMetrics metrics;
paint.getFontMetrics(&metrics);
fprintf(out, " SkPaint::FontMetrics metrics = {\n");
fprintf(out, " 0x%08x, ", metrics.fFlags);
output_scalar(out, metrics.fTop); fprintf(out, ", ");
output_scalar(out, metrics.fAscent); fprintf(out, ", ");
output_scalar(out, metrics.fDescent); fprintf(out, ", ");
output_scalar(out, metrics.fBottom); fprintf(out, ", ");
output_scalar(out, metrics.fLeading); fprintf(out, ",\n ");
output_scalar(out, metrics.fAvgCharWidth); fprintf(out, ", ");
output_scalar(out, metrics.fMaxCharWidth); fprintf(out, ", ");
output_scalar(out, metrics.fXMin); fprintf(out, ", ");
output_scalar(out, metrics.fXMax); fprintf(out, ",\n ");
output_scalar(out, metrics.fXHeight); fprintf(out, ", ");
output_scalar(out, metrics.fCapHeight); fprintf(out, ", ");
output_scalar(out, metrics.fUnderlineThickness); fprintf(out, ", ");
output_scalar(out, metrics.fUnderlinePosition); fprintf(out, "\n };\n");
fprintf(out, " return metrics;\n");
fprintf(out, "}\n\n}\n");
fclose(out);
return 0;
}
#if !defined SK_BUILD_FOR_IOS
int main(int argc, char * const argv[]) {
return tool_main(argc, (char**) argv);
}
#endif
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