Added image/bmp and text/html support to X11.

2026-07-08 21:06:51 +08:00 · 2004-05-02 21:31:19 +00:00
parent 500362d5c0
commit 4b212ad704
10 changed files with 657 additions and 13 deletions
--- a/lib/platform/CXWindowsClipboardBMPConverter.cpp
+++ b/lib/platform/CXWindowsClipboardBMPConverter.cpp
@@ -0,0 +1,126 @@
+/*
+ * synergy -- mouse and keyboard sharing utility
+ * Copyright (C) 2004 Chris Schoeneman
+ * 
+ * This package is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * found in the file COPYING that should have accompanied this file.
+ * 
+ * This package is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "CXWindowsClipboardBMPConverter.h"
+
+// BMP file header structure
+struct CBMPHeader {
+public:
+	UInt16				type;
+	UInt32				size;
+	UInt16				reserved1;
+	UInt16				reserved2;
+	UInt32				offset;
+};
+
+// BMP is little-endian
+static inline
+UInt32
+fromLEU32(const UInt8* data)
+{
+	return static_cast<UInt32>(data[0]) |
+			(static_cast<UInt32>(data[1]) <<  8) |
+			(static_cast<UInt32>(data[2]) << 16) |
+			(static_cast<UInt32>(data[3]) << 24);
+}
+
+static inline
+UInt32
+toLE(UInt32 data)
+{
+	union x32 {
+		UInt8	n8[4];
+		UInt32	n32;
+	} c;
+	c.n8[0] = static_cast<UInt8>(data & 0xffu);
+	c.n8[1] = static_cast<UInt8>((data >>  8) & 0xffu);
+	c.n8[2] = static_cast<UInt8>((data >> 16) & 0xffu);
+	c.n8[3] = static_cast<UInt8>((data >> 24) & 0xffu);
+	return c.n32;
+}
+
+//
+// CXWindowsClipboardBMPConverter
+//
+
+CXWindowsClipboardBMPConverter::CXWindowsClipboardBMPConverter(
+				Display* display) :
+	m_atom(XInternAtom(display, "image/bmp", False))
+{
+	// do nothing
+}
+
+CXWindowsClipboardBMPConverter::~CXWindowsClipboardBMPConverter()
+{
+	// do nothing
+}
+
+IClipboard::EFormat
+CXWindowsClipboardBMPConverter::getFormat() const
+{
+	return IClipboard::kBitmap;
+}
+
+Atom
+CXWindowsClipboardBMPConverter::getAtom() const
+{
+	return m_atom;
+}
+
+int
+CXWindowsClipboardBMPConverter::getDataSize() const
+{
+	return 8;
+}
+
+CString
+CXWindowsClipboardBMPConverter::fromIClipboard(const CString& bmp) const
+{
+	// create BMP image
+	CBMPHeader header;
+	char* type       = reinterpret_cast<char*>(&header.type);
+	type[0]          = 'B';
+	type[1]          = 'M';
+	header.size      = toLE(14 + bmp.size());
+	header.reserved1 = 0;
+	header.reserved2 = 0;
+	header.offset    = toLE(14 + 40);
+	return CString(reinterpret_cast<const char*>(&header), 14) + bmp;
+}
+
+CString
+CXWindowsClipboardBMPConverter::toIClipboard(const CString& bmp) const
+{
+	// make sure data is big enough for a BMP file
+	if (bmp.size() <= 14 + 40) {
+		return CString();
+	}
+
+	// check BMP file header
+	const UInt8* rawBMPHeader = reinterpret_cast<const UInt8*>(bmp.data());
+	if (rawBMPHeader[0] != 'B' || rawBMPHeader[1] != 'M') {
+		return CString();
+	}
+
+	// get offset to image data
+	UInt32 offset = fromLEU32(rawBMPHeader + 10);
+
+	// construct BMP
+	if (offset == 14 + 40) {
+		return bmp.substr(14);
+	}
+	else {
+		return bmp.substr(14, 40) + bmp.substr(offset, bmp.size() - offset);
+	}
+}