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https://github.com/libretro/scummvm.git
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100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "common/file.h"
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#include "common/config-manager.h"
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#include "common/compression/unzip.h"
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#include "backends/imgui/imgui_fonts.h"
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namespace {
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class FontReader;
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class FontArchive {
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friend class FontReader;
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public:
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void openArchive(const char *archiveName) {
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if (_archive)
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delete _archive;
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Common::SeekableReadStream *archiveStream = nullptr;
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if (ConfMan.hasKey("extrapath")) {
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Common::FSDirectory extrapath(ConfMan.getPath("extrapath"));
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archiveStream = extrapath.createReadStreamForMember(archiveName);
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}
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if (!archiveStream) {
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archiveStream = SearchMan.createReadStreamForMember(archiveName);
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}
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_archive = Common::makeZipArchive(archiveStream);
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}
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~FontArchive() {
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if (_archive)
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delete _archive;
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}
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private:
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Common::Archive *_archive = nullptr;
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};
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class FontReader {
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public:
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FontReader(FontArchive &archive) : _archive(archive) {}
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bool openFile(Common::File &file, const char *fileName) {
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if (!_archive._archive)
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return false;
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return file.open(Common::Path(fileName, Common::Path::kNoSeparator), *_archive._archive);
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}
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private:
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FontArchive &_archive;
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};
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} // namespace
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namespace ImGui {
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ImFont *addTTFFontFromArchive(const char *filename, float size_pixels, const ImFontConfig *font_cfg_template, const ImWchar *glyph_ranges) {
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Common::File f;
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FontArchive archive;
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FontReader reader(archive);
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archive.openArchive("fonts.dat");
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if (!reader.openFile(f, filename)) {
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archive.openArchive("fonts-cjk.dat");
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if (!reader.openFile(f, filename)) {
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return nullptr;
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}
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}
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uint size = f.size();
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uint8 *ttfFile = new uint8[size];
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f.read(ttfFile, size);
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ImGuiIO &io = ImGui::GetIO();
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return io.Fonts->AddFontFromMemoryTTF(ttfFile, size, size_pixels, font_cfg_template, glyph_ranges);
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}
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} // namespace ImGui
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