Add SkPDFUtils.cpp to build.
git-svn-id: http://skia.googlecode.com/svn/trunk@893 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
ctguil@chromium.org
parent
9db86bb9cd
commit
f966fd35cf
50
include/pdf/SkPDFUtils.h
Normal file
50
include/pdf/SkPDFUtils.h
Normal file
@ -0,0 +1,50 @@
|
||||
/*
|
||||
* Copyright (C) 2011 Google Inc.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#ifndef SkPDFUtils_DEFINED
|
||||
#define SkPDFUtils_DEFINED
|
||||
|
||||
#define NOT_IMPLEMENTED(condition, assert) \
|
||||
do { \
|
||||
if (condition) { \
|
||||
fprintf(stderr, "NOT_IMPLEMENTED: " #condition "\n"); \
|
||||
SkDEBUGCODE(SkASSERT(!assert);) \
|
||||
} \
|
||||
} while(0)
|
||||
|
||||
class SkMatrix;
|
||||
class SkPath;
|
||||
class SkPDFArray;
|
||||
|
||||
class SkPDFUtils {
|
||||
public:
|
||||
static SkPDFArray* MatrixToArray(const SkMatrix& matrix);
|
||||
|
||||
static void MoveTo(SkScalar x, SkScalar y, SkString* content);
|
||||
static void AppendLine(SkScalar x, SkScalar y, SkString* content);
|
||||
static void AppendCubic(SkScalar ctl1X, SkScalar ctl1Y,
|
||||
SkScalar ctl2X, SkScalar ctl2Y,
|
||||
SkScalar dstX, SkScalar dstY, SkString* content);
|
||||
static void AppendRectangle(SkScalar x, SkScalar y, SkScalar w, SkScalar h,
|
||||
SkString* content);
|
||||
static void EmitPath(const SkPath& path, SkString* content);
|
||||
static void ClosePath(SkString* content);
|
||||
static void PaintPath(SkPaint::Style style, SkPath::FillType fill,
|
||||
SkString* content);
|
||||
static void StrokePath(SkString* content);
|
||||
};
|
||||
|
||||
#endif
|
||||
160
src/pdf/SkPDFUtils.cpp
Normal file
160
src/pdf/SkPDFUtils.cpp
Normal file
@ -0,0 +1,160 @@
|
||||
/*
|
||||
* Copyright (C) 2011 Google Inc.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#include "SkPaint.h"
|
||||
#include "SkPath.h"
|
||||
#include "SkPDFUtils.h"
|
||||
#include "SkString.h"
|
||||
#include "SkPDFTypes.h"
|
||||
|
||||
// static
|
||||
SkPDFArray* SkPDFUtils::MatrixToArray(const SkMatrix& matrix) {
|
||||
SkScalar values[6];
|
||||
SkAssertResult(matrix.pdfTransform(values));
|
||||
|
||||
SkPDFArray* result = new SkPDFArray;
|
||||
result->reserve(6);
|
||||
for (size_t i = 0; i < SK_ARRAY_COUNT(values); i++) {
|
||||
result->append(new SkPDFScalar(values[i]))->unref();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
// static
|
||||
void SkPDFUtils::MoveTo(SkScalar x, SkScalar y, SkString* content) {
|
||||
SkPDFScalar::Append(x, content);
|
||||
content->append(" ");
|
||||
SkPDFScalar::Append(y, content);
|
||||
content->append(" m\n");
|
||||
}
|
||||
|
||||
// static
|
||||
void SkPDFUtils::AppendLine(SkScalar x, SkScalar y, SkString* content) {
|
||||
SkPDFScalar::Append(x, content);
|
||||
content->append(" ");
|
||||
SkPDFScalar::Append(y, content);
|
||||
content->append(" l\n");
|
||||
}
|
||||
|
||||
// static
|
||||
void SkPDFUtils::AppendCubic(SkScalar ctl1X, SkScalar ctl1Y,
|
||||
SkScalar ctl2X, SkScalar ctl2Y,
|
||||
SkScalar dstX, SkScalar dstY, SkString* content) {
|
||||
SkString cmd("y\n");
|
||||
SkPDFScalar::Append(ctl1X, content);
|
||||
content->append(" ");
|
||||
SkPDFScalar::Append(ctl1Y, content);
|
||||
content->append(" ");
|
||||
if (ctl2X != dstX || ctl2Y != dstY) {
|
||||
cmd.set("c\n");
|
||||
SkPDFScalar::Append(ctl2X, content);
|
||||
content->append(" ");
|
||||
SkPDFScalar::Append(ctl2Y, content);
|
||||
content->append(" ");
|
||||
}
|
||||
SkPDFScalar::Append(dstX, content);
|
||||
content->append(" ");
|
||||
SkPDFScalar::Append(dstY, content);
|
||||
content->append(" ");
|
||||
content->append(cmd);
|
||||
}
|
||||
|
||||
// static
|
||||
void SkPDFUtils::AppendRectangle(SkScalar x, SkScalar y,
|
||||
SkScalar w, SkScalar h, SkString* content) {
|
||||
SkPDFScalar::Append(x, content);
|
||||
content->append(" ");
|
||||
SkPDFScalar::Append(y, content);
|
||||
content->append(" ");
|
||||
SkPDFScalar::Append(w, content);
|
||||
content->append(" ");
|
||||
SkPDFScalar::Append(h, content);
|
||||
content->append(" re\n");
|
||||
}
|
||||
|
||||
// static
|
||||
void SkPDFUtils::EmitPath(const SkPath& path, SkString* content) {
|
||||
SkPoint args[4];
|
||||
SkPath::Iter iter(path, false);
|
||||
for (SkPath::Verb verb = iter.next(args);
|
||||
verb != SkPath::kDone_Verb;
|
||||
verb = iter.next(args)) {
|
||||
// args gets all the points, even the implicit first point.
|
||||
switch (verb) {
|
||||
case SkPath::kMove_Verb:
|
||||
MoveTo(args[0].fX, args[0].fY, content);
|
||||
break;
|
||||
case SkPath::kLine_Verb:
|
||||
AppendLine(args[1].fX, args[1].fY, content);
|
||||
break;
|
||||
case SkPath::kQuad_Verb: {
|
||||
// Convert quad to cubic (degree elevation). http://goo.gl/vS4i
|
||||
const SkScalar three = SkIntToScalar(3);
|
||||
args[1].scale(SkIntToScalar(2));
|
||||
SkScalar ctl1X = SkScalarDiv(args[0].fX + args[1].fX, three);
|
||||
SkScalar ctl1Y = SkScalarDiv(args[0].fY + args[1].fY, three);
|
||||
SkScalar ctl2X = SkScalarDiv(args[2].fX + args[1].fX, three);
|
||||
SkScalar ctl2Y = SkScalarDiv(args[2].fY + args[1].fY, three);
|
||||
AppendCubic(ctl1X, ctl1Y, ctl2X, ctl2Y, args[2].fX, args[2].fY,
|
||||
content);
|
||||
break;
|
||||
}
|
||||
case SkPath::kCubic_Verb:
|
||||
AppendCubic(args[1].fX, args[1].fY, args[2].fX, args[2].fY,
|
||||
args[3].fX, args[3].fY, content);
|
||||
break;
|
||||
case SkPath::kClose_Verb:
|
||||
ClosePath(content);
|
||||
break;
|
||||
case SkPath::kDone_Verb:
|
||||
break;
|
||||
default:
|
||||
SkASSERT(false);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// static
|
||||
void SkPDFUtils::ClosePath(SkString* content) {
|
||||
content->append("h\n");
|
||||
}
|
||||
|
||||
// static
|
||||
void SkPDFUtils::PaintPath(SkPaint::Style style, SkPath::FillType fill,
|
||||
SkString* content) {
|
||||
if (style == SkPaint::kFill_Style)
|
||||
content->append("f");
|
||||
else if (style == SkPaint::kStrokeAndFill_Style)
|
||||
content->append("B");
|
||||
else if (style == SkPaint::kStroke_Style)
|
||||
content->append("S");
|
||||
|
||||
if (style != SkPaint::kStroke_Style) {
|
||||
// Not supported yet.
|
||||
NOT_IMPLEMENTED(fill == SkPath::kInverseEvenOdd_FillType, false);
|
||||
NOT_IMPLEMENTED(fill == SkPath::kInverseWinding_FillType, false);
|
||||
if (fill == SkPath::kEvenOdd_FillType)
|
||||
content->append("*");
|
||||
}
|
||||
content->append("\n");
|
||||
}
|
||||
|
||||
// static
|
||||
void SkPDFUtils::StrokePath(SkString* content) {
|
||||
SkPDFUtils::PaintPath(
|
||||
SkPaint::kStroke_Style, SkPath::kWinding_FillType, content);
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user