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ASYLUM: Support rendering Chinese text
This commit is contained in:
Vladimir Serbinenko
parent
c424bc3ea6
commit
6baaf9c54a
@ -30,12 +30,13 @@
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#include "asylum/asylum.h"
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#include "asylum/respack.h"
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#if defined(USE_FREETYPE2)
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#include "graphics/fonts/ttf.h"
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#endif
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namespace Asylum {
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Text::Text(AsylumEngine *engine) : _vm(engine) {
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_curFontFlags = 0;
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_fontResource = nullptr;
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_transTableNum = 0;
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Text::Text(AsylumEngine *engine) : _vm(engine), _fontResource(nullptr), _transTableNum(0), _curFontFlags(0), _chineseFontLoadAttempted(false) {
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}
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Text::~Text() {
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@ -59,23 +60,46 @@ ResourceId Text::loadFont(ResourceId resourceId) {
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return previousFont;
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}
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void Text::loadChineseFont() {
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if (_chineseFontLoadAttempted)
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return;
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_chineseFontLoadAttempted = true;
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#if defined(USE_FREETYPE2)
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_chineseFont.reset(Graphics::loadTTFFontFromArchive("NotoSansSC-Regular.otf", 32, Graphics::kTTFSizeModeCharacter, 0, Graphics::kTTFRenderModeLight));
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#endif
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}
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void Text::setPosition(const Common::Point &point) {
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_position = point;
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}
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int16 Text::getWidth(char c) {
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if (!_fontResource)
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error("[Text::getWidth] Font not initialized properly");
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if (!_fontResource)
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error("[Text::getWidth] Font not initialized properly");
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GraphicFrame *font = _fontResource->getFrame((uint8)c);
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GraphicFrame *font = _fontResource->getFrame((uint8)c);
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return (int16)(font->surface.w + font->x - _curFontFlags);
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return (int16)(font->surface.w + font->x - _curFontFlags);
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}
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int16 Text::getChineseWidth(const Common::U32String &utext) {
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loadChineseFont();
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if (!_chineseFont)
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return 0;
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return _chineseFont->getStringWidth(utext);
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}
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int16 Text::getWidth(const char *text) {
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if (!_fontResource)
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error("[Text::getWidth] font resource hasn't been loaded yet!");
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if (_vm->getLanguage() == Common::Language::ZH_CHN) {
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return getChineseWidth(Common::U32String(text, Common::CodePage::kGBK));
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}
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int16 width = 0;
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char character = *text;
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@ -97,6 +121,10 @@ int16 Text::getWidth(const char *text, int16 length) {
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if (length == 0)
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return 0;
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if (_vm->getLanguage() == Common::Language::ZH_CHN) {
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return getChineseWidth(Common::U32String(text, length, Common::CodePage::kGBK));
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}
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int16 width = 0;
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char character = *text;
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@ -135,10 +163,33 @@ void Text::drawChar(char character) {
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_position.x += (int16)fontLetter->surface.w + fontLetter->x - _curFontFlags;
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}
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void Text::drawChinese(const Common::U32String &utext) {
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loadChineseFont();
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if (!_chineseFont)
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return;
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Graphics::Surface *surf = getScreen()->getSurface();
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uint8 color = 0;
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// TODO: Add more colors
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switch (_fontResource->getResourceId()) {
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default:
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debug(5, "Unrecognized font resource 0x%x for string %s", _fontResource->getResourceId(), utext.encode().c_str());
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color = 1;
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break;
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}
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_chineseFont->drawString(surf, utext, _position.x, _position.y, surf->w - _position.x, color);
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_position.x += _chineseFont->getStringWidth(utext);
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}
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void Text::draw(const char *text) {
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if (!text)
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return;
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if (_vm->getLanguage() == Common::Language::ZH_CHN) {
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drawChinese(Common::U32String(text, Common::CodePage::kGBK));
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return;
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}
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if (_vm->getLanguage() == Common::HE_ISR)
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text = Common::convertBiDiString(text, Common::kWindows1255).c_str();
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while (*text) {
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@ -154,6 +205,11 @@ void Text::draw(const char *text, int16 length) {
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if (!text)
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return;
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if (_vm->getLanguage() == Common::Language::ZH_CHN) {
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drawChinese(Common::U32String(text, length, Common::CodePage::kGBK));
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return;
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}
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if (_vm->getLanguage() == Common::HE_ISR)
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text = Common::convertBiDiString(Common::String(text, length), Common::kWindows1255).c_str();
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for (int16 i = 0; i < length; i++)
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@ -189,6 +245,48 @@ int16 Text::draw(int16 a1, int16 a2, TextCentering centering, const Common::Poin
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if (!text || !*text)
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return 0;
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// TODO: Make non-Chinese into Graphics::Font as well.
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if (_vm->getLanguage() == Common::Language::ZH_CHN) {
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Common::Array<Common::U32String> lines;
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Common::Point coords = point;
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int16 printed = 0;
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loadChineseFont();
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if (!_chineseFont)
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return 0;
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char *buf = scumm_strdup(text);
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for (char *ptr = buf; *ptr; ptr++)
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if (*ptr == 1 || *ptr == 2) // Start of heading (SOH) or start of text (STX)
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*ptr = '\n';
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Common::U32String utext(buf, Common::CodePage::kGBK);
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free(buf);
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_chineseFont->wordWrapText(utext, width, lines);
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for (int index = a1; index <= (a1 + a2) && index < (int)lines.size(); index++) {
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switch (centering) {
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default:
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case kTextCalculate:
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break;
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case kTextCenter:
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setPosition(coords + Common::Point((width - getChineseWidth(lines[index])) / 2, 0));
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drawChinese(lines[index]);
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break;
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case kTextNormal:
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setPosition(coords);
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drawChinese(lines[index]);
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break;
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}
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coords.y += spacing;
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++printed;
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}
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return printed;
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}
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Common::Point coords = point;
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int16 printed = 0;
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@ -24,6 +24,7 @@
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#include "common/rect.h"
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#include "common/scummsys.h"
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#include "graphics/font.h"
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#include "asylum/shared.h"
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@ -47,7 +48,6 @@ public:
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ResourceId loadFont(ResourceId resourceId);
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void setPosition(const Common::Point &point);
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int16 getWidth(char c);
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int16 getWidth(const char *text);
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int16 getWidth(const char *text, int16 length);
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int16 getWidth(ResourceId resourceId);
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@ -61,6 +61,7 @@ public:
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void draw(const char *text, ResourceId fontResourceId, int16 y);
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void draw(const char *text, int16 length);
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int16 draw(TextCentering centering, const Common::Point &point, int16 spacing, int16 width, const char *text);
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void drawChinese(const Common::U32String &utext);
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int16 draw(int16 a1, int16 a2, TextCentering centering, const Common::Point &point, int16 spacing, int16 width, const char *text);
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void drawCentered(const Common::Point &point, int16 width, const char *text);
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@ -70,8 +71,12 @@ public:
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void setTransTableNum(uint32 val) { _transTableNum = val; }
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private:
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int16 getWidth(char c);
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void drawChar(char character);
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int16 getChineseWidth(const Common::U32String &utext);
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void loadChineseFont();
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AsylumEngine *_vm;
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GraphicResource *_fontResource;
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@ -81,6 +86,8 @@ private:
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Common::Point _position;
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uint8 _curFontFlags;
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Common::ScopedPtr<Graphics::Font> _chineseFont;
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bool _chineseFontLoadAttempted;
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};
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} // end of namespace Asylum
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