134 lines
3.1 KiB
C++
134 lines
3.1 KiB
C++
// dwrite.cpp
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extern IDWriteFactory *dwfactory;
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extern HRESULT initDrawText(void);
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extern void uninitDrawText(void);
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struct fontCollection {
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IDWriteFontCollection *fonts;
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WCHAR userLocale[LOCALE_NAME_MAX_LENGTH];
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int userLocaleSuccess;
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};
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extern fontCollection *loadFontCollection(void);
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extern WCHAR *fontCollectionFamilyName(fontCollection *fc, IDWriteFontFamily *family);
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extern void fontCollectionFree(fontCollection *fc);
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extern WCHAR *fontCollectionCorrectString(fontCollection *fc, IDWriteLocalizedStrings *names);
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// fontdialog.cpp
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struct fontDialogParams {
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IDWriteFont *font;
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double size;
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WCHAR *familyName;
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WCHAR *styleName;
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};
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extern BOOL showFontDialog(HWND parent, struct fontDialogParams *params);
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extern void loadInitialFontDialogParams(struct fontDialogParams *params);
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extern void destroyFontDialogParams(struct fontDialogParams *params);
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extern WCHAR *fontDialogParamsToString(struct fontDialogParams *params);
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// attrstr.cpp
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typedef std::function<void(uiDrawContext *c, uiDrawTextLayout *layout, double x, double y)> backgroundFunc;
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extern void attrstrToIDWriteTextLayoutAttrs(uiDrawTextLayoutParams *p, IDWriteTextLayout *layout, std::vector<backgroundFunc> **backgroundFuncs);
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// drawtext.cpp
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// TODO reconcile this with attrstr.cpp
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class textDrawingEffect : public IUnknown {
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ULONG refcount;
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public:
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bool hasColor;
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double r;
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double g;
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double b;
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double a;
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bool hasUnderline;
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uiDrawUnderlineStyle u;
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bool hasUnderlineColor;
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double ur;
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double ug;
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double ub;
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double ua;
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textDrawingEffect()
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{
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this->refcount = 1;
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this->hasColor = false;
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this->hasUnderline = false;
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this->hasUnderlineColor = false;
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}
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// IUnknown
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virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObject)
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{
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if (ppvObject == NULL)
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return E_POINTER;
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if (riid == IID_IUnknown) {
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this->AddRef();
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*ppvObject = this;
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return S_OK;
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}
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*ppvObject = NULL;
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return E_NOINTERFACE;
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}
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virtual ULONG STDMETHODCALLTYPE AddRef(void)
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{
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this->refcount++;
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return this->refcount;
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}
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virtual ULONG STDMETHODCALLTYPE Release(void)
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{
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this->refcount--;
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if (this->refcount == 0) {
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delete this;
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return 0;
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}
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return this->refcount;
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}
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// TODO deduplicate this with common/attrlist.c
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bool same(textDrawingEffect *b)
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{
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static auto boolsDiffer = [](bool a, bool b) -> bool {
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if (a && b)
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return false;
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if (!a && !b)
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return false;
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return true;
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};
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if (boolsDiffer(this->hasColor, b->hasColor))
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return false;
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if (this->hasColor) {
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// TODO use a closest match?
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if (this->r != b->r)
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return false;
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if (this->g != b->g)
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return false;
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if (this->b != b->b)
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return false;
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if (this->a != b->a)
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return false;
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}
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if (boolsDiffer(this->hasUnderline, b->hasUnderline))
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return false;
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if (this->hasUnderline)
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if (this->u != b->u)
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return false;
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if (boolsDiffer(this->hasUnderlineColor, b->hasUnderlineColor))
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return false;
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if (this->hasUnderlineColor) {
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// TODO use a closest match?
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if (this->ur != b->ur)
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return false;
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if (this->ug != b->ug)
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return false;
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if (this->ub != b->ub)
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return false;
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if (this->ua != b->ua)
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return false;
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}
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return true;
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}
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};
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