skhello.cpp revision 58190644c30e1c4aa8e527f3503c58f841e0fcf3
180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru/* 280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru * Copyright 2011 Google Inc. 380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru * 480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru * Use of this source code is governed by a BSD-style license that can be 580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru * found in the LICENSE file. 680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru */ 780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#include "SkCanvas.h" 9e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger#include "SkCommandLineFlags.h" 107839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger#include "SkData.h" 1158190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger#include "SkDocument.h" 1280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#include "SkGraphics.h" 137839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger#include "SkSurface.h" 147839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger#include "SkImage.h" 157839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger#include "SkStream.h" 1680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#include "SkString.h" 1780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 1858190644c30e1c4aa8e527f3503c58f841e0fcf3Derek SollenbergerDEFINE_string2(outFile, o, "skhello", "The filename to write the image."); 197839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek SollenbergerDEFINE_string2(text, t, "Hello", "The string to write."); 2080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 2158190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenbergerstatic void doDraw(SkCanvas* canvas, const SkPaint& paint, const char text[]) { 2258190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkRect bounds; 2358190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger canvas->getClipBounds(&bounds); 2458190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger 2558190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger canvas->drawColor(SK_ColorWHITE); 2658190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger canvas->drawText(text, strlen(text), 2758190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger bounds.centerX(), bounds.centerY(), 2858190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger paint); 2958190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger} 3058190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger 3158190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenbergerstatic bool do_surface(int w, int h, const char path[], const char text[], 3258190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger const SkPaint& paint) { 3358190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkImage::Info info = { 3458190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger w, h, SkImage::kPMColor_ColorType, SkImage::kPremul_AlphaType 3558190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger }; 3658190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkAutoTUnref<SkSurface> surface(SkSurface::NewRaster(info)); 3758190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger doDraw(surface->getCanvas(), paint, text); 3858190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger 3958190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkAutoTUnref<SkImage> image(surface->newImageSnapshot()); 4058190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkAutoDataUnref data(image->encode()); 4158190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger if (NULL == data.get()) { 4258190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger return false; 4358190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger } 4458190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkFILEWStream stream(path); 4558190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger return stream.write(data->data(), data->size()); 4658190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger} 4758190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger 4858190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenbergerstatic bool do_document(int w, int h, const char path[], const char text[], 4958190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger const SkPaint& paint) { 5058190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkAutoTUnref<SkDocument> doc(SkDocument::CreatePDF(path)); 5158190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger if (doc.get()) { 5258190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkScalar width = SkIntToScalar(w); 5358190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkScalar height = SkIntToScalar(h); 5458190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger doDraw(doc->beginPage(width, height, NULL), paint, text); 5558190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger return true; 5658190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger } 5758190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger return false; 5858190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger} 5958190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger 6080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queruint tool_main(int argc, char** argv); 6180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queruint tool_main(int argc, char** argv) { 62e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger SkCommandLineFlags::SetUsage(""); 63e2022cc36e47b9f0d219eb5cd24be61772c28d3bDerek Sollenberger SkCommandLineFlags::Parse(argc, argv); 64096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger 6580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkAutoGraphics ag; 6658190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkString path("skhello"); 6780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkString text("Hello"); 6880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 697839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger if (!FLAGS_outFile.isEmpty()) { 707839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger path.set(FLAGS_outFile[0]); 71096defe64d408e54474fe19f418c95bf1a554fc7Derek Sollenberger } 727839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger if (!FLAGS_text.isEmpty()) { 737839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger text.set(FLAGS_text[0]); 7480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru } 7580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 7680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkPaint paint; 7780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru paint.setAntiAlias(true); 7880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru paint.setTextSize(SkIntToScalar(30)); 797839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger paint.setTextAlign(SkPaint::kCenter_Align); 807839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger 8180bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar width = paint.measureText(text.c_str(), text.size()); 8280bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru SkScalar spacing = paint.getFontSpacing(); 8380bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 8480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru int w = SkScalarRound(width) + 30; 8580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru int h = SkScalarRound(spacing) + 30; 8680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 8758190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger static const struct { 8858190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger bool (*fProc)(int w, int h, const char path[], const char text[], 8958190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger const SkPaint&); 9058190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger const char* fSuffix; 9158190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger } gRec[] = { 9258190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger { do_surface, ".png" }, 9358190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger { do_document, ".pdf" }, 947839ce1af63bf12fe7b3caa866970bbbb3afb13dDerek Sollenberger }; 9580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 9658190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); ++i) { 9758190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger SkString file; 9858190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger file.printf("%s%s", path.c_str(), gRec[i].fSuffix); 9958190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger if (!gRec[i].fProc(w, h, file.c_str(), text.c_str(), paint)) { 10058190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger return -1; 10158190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger } 10258190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger } 10358190644c30e1c4aa8e527f3503c58f841e0fcf3Derek Sollenberger return 0; 10480bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 10580bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru 10680bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#if !defined SK_BUILD_FOR_IOS 10780bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queruint main(int argc, char * const argv[]) { 10880bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru return tool_main(argc, (char**) argv); 10980bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru} 11080bacfeb4bda06541e8695bd502229727bccfeaJean-Baptiste Queru#endif 111