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41e02e9613
This lays the groundwork for making SparseBitSet serializable. FontFamily.addFont is only used when the FontFamily is constructed. Thus, instead of calling FontFamily.addFont multiple time, passes Font list to the constructor. By this change, FontFamily can be immutable now. By making FontFamily immutable, We can create FontFamily with pre-calculated SparseBitSet. Bug: 34042446 Test: minikin_tests has passed Change-Id: I2576789fba6cb27687e920e2488e8bedbcf7d36f
104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// This is a test program that uses Minikin to layout and draw some text.
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// At the moment, it just draws a string into /data/local/tmp/foo.pgm.
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#include <stdio.h>
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#include <vector>
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#include <fstream>
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#include <unicode/unistr.h>
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#include <unicode/utf16.h>
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#include <minikin/MinikinFontFreeType.h>
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#include <minikin/Layout.h>
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using std::vector;
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using namespace minikin;
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FT_Library library; // TODO: this should not be a global
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FontCollection *makeFontCollection() {
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vector<FontFamily *>typefaces;
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const char *fns[] = {
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"/system/fonts/Roboto-Regular.ttf",
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"/system/fonts/Roboto-Italic.ttf",
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"/system/fonts/Roboto-BoldItalic.ttf",
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"/system/fonts/Roboto-Light.ttf",
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"/system/fonts/Roboto-Thin.ttf",
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"/system/fonts/Roboto-Bold.ttf",
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"/system/fonts/Roboto-ThinItalic.ttf",
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"/system/fonts/Roboto-LightItalic.ttf"
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};
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FT_Face face;
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FT_Error error;
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std::vector<Font> fonts;
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for (size_t i = 0; i < sizeof(fns)/sizeof(fns[0]); i++) {
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const char *fn = fns[i];
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printf("adding %s\n", fn);
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error = FT_New_Face(library, fn, 0, &face);
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if (error != 0) {
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printf("error loading %s, %d\n", fn, error);
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}
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MinikinFont *font = new MinikinFontFreeType(face);
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fonts.push_back(Font(font, FontStyle()));
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}
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FontFamily *family = new FontFamily(std::move(fonts));
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typefaces.push_back(family);
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#if 1
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const char *fn = "/system/fonts/DroidSansDevanagari-Regular.ttf";
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error = FT_New_Face(library, fn, 0, &face);
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MinikinFont *font = new MinikinFontFreeType(face);
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family = new FontFamily(std::vector<Font>({ Font(font, FontStyle()) }));
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typefaces.push_back(family);
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#endif
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return new FontCollection(typefaces);
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}
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int runMinikinTest() {
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FT_Error error = FT_Init_FreeType(&library);
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if (error) {
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return -1;
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}
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Layout::init();
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FontCollection *collection = makeFontCollection();
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Layout layout;
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layout.setFontCollection(collection);
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const char *text = "fine world \xe0\xa4\xa8\xe0\xa4\xae\xe0\xa4\xb8\xe0\xa5\x8d\xe0\xa4\xa4\xe0\xa5\x87";
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int bidiFlags = 0;
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FontStyle fontStyle;
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MinikinPaint paint;
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paint.size = 32;
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icu::UnicodeString icuText = icu::UnicodeString::fromUTF8(text);
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layout.doLayout(icuText.getBuffer(), 0, icuText.length(), icuText.length(), bidiFlags, fontStyle, paint);
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layout.dump();
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Bitmap bitmap(250, 50);
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layout.draw(&bitmap, 10, 40, 32);
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std::ofstream o;
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o.open("/data/local/tmp/foo.pgm", std::ios::out | std::ios::binary);
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bitmap.writePnm(o);
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return 0;
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}
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int main() {
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return runMinikinTest();
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}
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