.reference: Rainbow example (RM #158)

git-svn-id: svn://ultimatepp.org/upp/trunk@4176 f0d560ea-af0d-0410-9eb7-867de7ffcac7

reference/Framebuffer/Clip.cpp

@@ -0,0 +1,238 @@
+#include "Fb.h"
+
+#ifdef GUI_FB
+
+NAMESPACE_UPP
+
+#define LLOG(x)  // LOG(x)
+
+static VectorMap<String, ClipData> fbClipboard;
+
+void ClearClipboard()
+{
+	GuiLock __;
+	fbClipboard.Clear();
+}
+
+void AppendClipboard(const char *format, const Value& data, String (*render)(const Value&))
+{
+	GuiLock __;
+	ClipData& cd = fbClipboard.GetAdd(format);
+	cd.data = data;
+	cd.render = render;
+}
+
+static String sRawRender(const Value& v)
+{
+	return v;
+}
+
+void AppendClipboard(const char *format, const String& data)
+{
+	GuiLock __;
+	AppendClipboard(format, data, sRawRender);
+}
+
+void AppendClipboard(const char *format, const byte *data, int length)
+{
+	GuiLock __;
+	AppendClipboard(format, String(data, length));
+}
+
+String ReadClipboard(const char *format)
+{
+	GuiLock __;
+	int q = fbClipboard.Find(format);
+	return q >= 0 ? (*fbClipboard[q].render)(fbClipboard[q].data) : String();
+}
+
+void AppendClipboardText(const String& s)
+{
+	AppendClipboard("text", ToSystemCharset(s));
+}
+
+void AppendClipboardUnicodeText(const WString& s)
+{
+	AppendClipboard("wtext", (byte *)~s, 2 * s.GetLength());
+}
+
+const char *ClipFmtsText()
+{
+	return "wtext;text";
+}
+
+String GetString(PasteClip& clip)
+{
+	GuiLock __;
+	if(clip.Accept("wtext")) {
+		String s = ~clip;
+		return WString((const wchar *)~s, wstrlen((const wchar *)~s)).ToString();
+	}
+	if(clip.IsAvailable("text"))
+		return ~clip;
+	return Null;
+}
+
+WString GetWString(PasteClip& clip)
+{
+	GuiLock __;
+	if(clip.Accept("wtext")) {
+		String s = ~clip;
+		return WString((const wchar *)~s, wstrlen((const wchar *)~s));
+	}
+	if(clip.IsAvailable("text"))
+		return (~clip).ToWString();
+	return Null;
+}
+
+
+bool AcceptText(PasteClip& clip)
+{
+	return clip.Accept(ClipFmtsText());
+}
+
+static String sText(const Value& data)
+{
+	return data;
+}
+
+static String sWText(const Value& data)
+{
+	return Unicode__(WString(data));
+}
+
+void Append(VectorMap<String, ClipData>& data, const String& text)
+{
+	data.GetAdd("text", ClipData(text, sText));
+	data.GetAdd("wtext", ClipData(text, sWText));
+}
+
+void Append(VectorMap<String, ClipData>& data, const WString& text)
+{
+	data.GetAdd("text", ClipData(text, sText));
+	data.GetAdd("wtext", ClipData(text, sWText));
+}
+
+String GetTextClip(const WString& text, const String& fmt)
+{
+	if(fmt == "text")
+		return text.ToString();
+	if(fmt == "wtext")
+		return Unicode__(text);
+	return Null;
+}
+
+String GetTextClip(const String& text, const String& fmt)
+{
+	if(fmt == "text")
+		return text;
+	if(fmt == "wtext")
+		return Unicode__(text.ToWString());
+	return Null;
+}
+
+String ReadClipboardText()
+{
+	String w = ReadClipboard("text");
+	return w.GetCount() ? w : ReadClipboardUnicodeText().ToString();
+}
+
+WString ReadClipboardUnicodeText()
+{
+	String w = ReadClipboard("wtext");
+	if(w.GetCount())
+		return WString((const wchar *)~w, w.GetLength() / 2);
+	return ReadClipboard("text").ToWString();
+}
+
+bool IsClipboardAvailable(const char *id)
+{
+	return fbClipboard.Find(id) >= 0;
+}
+
+bool IsClipboardAvailableText()
+{
+	return IsClipboardAvailable("text") || IsClipboardAvailable("wtext");
+}
+
+const char *ClipFmtsImage()
+{
+	static const char *q;
+	ONCELOCK {
+		static String s = "dib;" + ClipFmt<Image>();
+		q = s;
+	}
+	return q;
+}
+
+bool AcceptImage(PasteClip& clip)
+{
+	GuiLock __;
+	return clip.Accept(ClipFmtsImage());
+}
+
+Image GetImage(PasteClip& clip)
+{
+	GuiLock __;
+	Image m;
+	if(Accept<Image>(clip)) {
+		LoadFromString(m, ~clip);
+		if(!m.IsEmpty())
+			return m;
+	}
+	return Null;
+}
+
+Image ReadClipboardImage()
+{
+	GuiLock __;
+	PasteClip d = Ctrl::Clipboard();
+	return GetImage(d);
+}
+
+String sImage(const Value& image)
+{
+	Image img = image;
+	return StoreAsString(const_cast<Image&>(img));
+}
+
+String GetImageClip(const Image& img, const String& fmt)
+{
+	GuiLock __;
+	if(img.IsEmpty()) return Null;
+	if(fmt == ClipFmt<Image>())
+		return sImage(img);
+	return Null;
+}
+
+void AppendClipboardImage(const Image& img)
+{
+	GuiLock __;
+	if(img.IsEmpty()) return;
+	AppendClipboard(ClipFmt<Image>(), img, sImage);
+}
+
+bool AcceptFiles(PasteClip& clip)
+{
+	if(clip.Accept("files")) {
+		clip.SetAction(DND_COPY);
+		return true;
+	}
+	return false;
+}
+
+bool IsAvailableFiles(PasteClip& clip)
+{
+	return clip.IsAvailable("files");
+}
+
+Vector<String> GetFiles(PasteClip& clip)
+{
+	GuiLock __;
+	Vector<String> f;
+	return f;
+}
+
+END_UPP_NAMESPACE
+
+#endif