Initial Commit

common/CLIPBRD.CPP

@@ -0,0 +1,156 @@
+#include <common/clipbrd.hpp>
+#include <common/string.hpp>
+
+Clipboard::Clipboard(GUIWindow &parentWindow)
+: mParentWindow(parentWindow), mhNextViewerWnd(0)
+{
+	if(!parentWindow.isValid())return;
+  mChangeCBChainHandler.setCallback(this,&Clipboard::changeCBChainHandler);
+	mDrawClipboardHandler.setCallback(this,&Clipboard::drawClipboardHandler);
+	mDestroyHandler.setCallback(this,&Clipboard::destroyHandler);
+	mParentWindow.insertHandler(VectorHandler::ChangeCBChainHandler,&mChangeCBChainHandler);
+	mParentWindow.insertHandler(VectorHandler::DrawClipboardHandler,&mDrawClipboardHandler);
+	mParentWindow.insertHandler(VectorHandler::DestroyHandler,&mDestroyHandler);
+	mhNextViewerWnd=::SetClipboardViewer(mParentWindow);
+}
+
+Clipboard::~Clipboard()
+{
+  removeCBChain();
+	mParentWindow.removeHandler(VectorHandler::DrawClipboardHandler,&mDrawClipboardHandler);
+	mParentWindow.removeHandler(VectorHandler::ChangeCBChainHandler,&mChangeCBChainHandler);
+	mParentWindow.removeHandler(VectorHandler::DestroyHandler,&mDestroyHandler);
+}
+
+void Clipboard::setDrawDataHandler(PureCallback *pCallback)
+{
+  mDrawDataHandler=CallbackPointer(pCallback);
+}
+
+bool Clipboard::isOkay(void)const
+{
+  return mParentWindow.isValid();
+}
+
+CallbackData::ReturnType Clipboard::destroyHandler(CallbackData &someCallbackData)
+{
+  removeCBChain();
+  return (CallbackData::ReturnType)false;
+}
+
+CallbackData::ReturnType Clipboard::changeCBChainHandler(CallbackData &someCallbackData)
+{
+  if(!isOkay())return (CallbackData::ReturnType)false;
+	if((HWND)someCallbackData.wParam()==mhNextViewerWnd)mhNextViewerWnd=(HWND)someCallbackData.loWord();
+	else ::SendMessage(mhNextViewerWnd,WM_CHANGECBCHAIN,someCallbackData.wParam(),someCallbackData.lParam());
+  return (CallbackData::ReturnType)false;
+}
+
+CallbackData::ReturnType Clipboard::drawClipboardHandler(CallbackData &someCallbackData)
+{
+  if(!isOkay())return (CallbackData::ReturnType)false;
+	::SendMessage(mhNextViewerWnd,WM_DRAWCLIPBOARD,someCallbackData.wParam(),someCallbackData.lParam());
+	if(::OpenClipboard(mParentWindow)){drawClipboard();::CloseClipboard();}
+	return (CallbackData::ReturnType)false;
+}
+
+void Clipboard::removeCBChain(void)
+{
+  if(!isOkay())return;
+	::ChangeClipboardChain(mParentWindow,mhNextViewerWnd);
+}
+
+bool Clipboard::setClipboard(Format format,HANDLE hData)
+{
+  bool returnCode(false);
+
+  if(!isOkay()||!hData)return returnCode;
+	if(!::OpenClipboard(mParentWindow))return returnCode;
+	emptyClipboard();
+	returnCode=(hData==::SetClipboardData(format,hData));
+	::CloseClipboard();
+	return returnCode;
+}
+
+bool Clipboard::setClipboard(const String &strText)
+{
+  bool returnCode(false);
+
+  if(!isOkay()||strText.isNull()||!::OpenClipboard(mParentWindow))return returnCode;
+	emptyClipboard();
+	int strLen(strText.length());
+	char *ptrData=(char*)::GlobalAlloc(GMEM_FIXED,strLen+1);
+	if(!ptrData){::CloseClipboard();return returnCode;}
+	::memset(ptrData,0,strLen+1);
+	::memcpy(ptrData,(char*)(String&)strText,strLen);
+	returnCode=ptrData==::SetClipboardData(CF_TEXT,(HANDLE)ptrData);
+	::CloseClipboard();
+	return true;
+}
+
+bool Clipboard::setClipboard(UINT format,const String &strText)
+{
+  bool returnCode(false);
+
+  if(!isOkay()||strText.isNull()||!::OpenClipboard(mParentWindow))return returnCode;
+	emptyClipboard();
+	int strLen(strText.length());
+	char *ptrData=(char*)::GlobalAlloc(GMEM_FIXED,strLen+1);
+	if(!ptrData){::CloseClipboard();return returnCode;}
+	::memset(ptrData,0,strLen+1);
+	::memcpy(ptrData,(char*)(String&)strText,strLen);
+	returnCode=ptrData==::SetClipboardData(format,(HANDLE)ptrData);
+	::CloseClipboard();
+	return true;
+}
+
+bool Clipboard::getClipboard(String &strText)const
+{
+  bool returnCode(false);
+	HANDLE handle=0;
+
+  if(!isOkay()||!::OpenClipboard(mParentWindow))return returnCode;
+	if(0==(handle=::GetClipboardData(CF_TEXT))){::CloseClipboard();return false;}
+	strText=(LPSTR)::GlobalLock(handle);
+	::GlobalUnlock(handle);
+  ::CloseClipboard();
+	return true;
+}
+
+bool Clipboard::getClipboard(UINT format,String &strText)const
+{
+  bool returnCode(false);
+	HANDLE handle=0;
+
+  if(!isOkay()||!::OpenClipboard(mParentWindow))return returnCode;
+	if(0==(handle=::GetClipboardData(format))){::CloseClipboard();return false;}
+	strText=(LPSTR)::GlobalLock(handle);
+	::GlobalUnlock(handle);
+  ::CloseClipboard();
+	return true;
+}
+
+UINT Clipboard::registerClipboardFormat(const String &strFormatName)
+{
+  return ::RegisterClipboardFormat(strFormatName.str());
+}
+
+bool Clipboard::hasData(Format format)
+{
+	return ::IsClipboardFormatAvailable(format);
+}
+
+bool Clipboard::hasData(UINT format)
+{
+	return ::IsClipboardFormatAvailable(format);
+}
+
+// virtuals
+
+void Clipboard::drawClipboard(void)
+{
+  mDrawDataHandler.callback(CallbackData());
+}
+
+// (ie) HANDLE hData=::GetClipboardData(CF_DIB);
+