commitmonitor Code

--- a
+++ b/trunk/src/BaseWindow.cpp
@@ -0,0 +1,146 @@
+// TortoiseIDiff - an image diff viewer in TortoiseSVN
+
+// Copyright (C) 2006 - 2007 - Stefan Kueng
+
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+
+// This program 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.
+
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software Foundation,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+#include "stdafx.h"
+#include "BaseWindow.h"
+
+
+ResString::ResString (HINSTANCE hInst, int resId)
+{
+	if (!::LoadString (hInst, resId, _buf, MAX_RESSTRING + 1))
+	{
+		ZeroMemory(_buf, sizeof(_buf));
+	}
+}
+
+
+bool CWindow::RegisterWindow(UINT style, HICON hIcon, HCURSOR hCursor, HBRUSH hbrBackground, 
+									LPCTSTR lpszMenuName, LPCTSTR lpszClassName, HICON hIconSm)
+{
+	WNDCLASSEX wcx; 
+ 
+	// Fill in the window class structure with default parameters 
+ 
+	wcx.cbSize = sizeof(WNDCLASSEX);				// size of structure 
+	wcx.style = style;								// redraw if size changes 
+	wcx.lpfnWndProc = CWindow::stWinMsgHandler;		// points to window procedure 
+	wcx.cbClsExtra = 0;								// no extra class memory 
+	wcx.cbWndExtra = 0;								// no extra window memory 
+	wcx.hInstance = hResource;						// handle to instance 
+	wcx.hIcon = hIcon;								// predefined app. icon 
+	wcx.hCursor = hCursor;							// predefined arrow 
+	wcx.hbrBackground = hbrBackground;				// white background brush 
+	wcx.lpszMenuName = lpszMenuName;				// name of menu resource 
+	wcx.lpszClassName = lpszClassName;				// name of window class 
+	wcx.hIconSm = hIconSm;							// small class icon 
+ 
+	// Register the window class. 
+	return RegisterWindow(&wcx); 
+}
+
+bool CWindow::RegisterWindow(CONST WNDCLASSEX* wcx)
+{
+	// Register the window class. 
+	sClassName = std::wstring(wcx->lpszClassName);
+
+	if (RegisterClassEx(wcx) == 0)
+		return FALSE;
+	else
+		return TRUE;
+}
+
+LRESULT CALLBACK CWindow::stWinMsgHandler(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+{
+	CWindow* pWnd;
+
+	if (uMsg == WM_NCCREATE)
+	{
+		// get the pointer to the window from lpCreateParams which was set in CreateWindow
+		SetWindowLongPtr(hwnd, GWLP_USERDATA, (long)((LPCREATESTRUCT(lParam))->lpCreateParams));
+	}
+
+	// get the pointer to the window
+	pWnd = GetObjectFromWindow(hwnd);
+
+	// if we have the pointer, go to the message handler of the window
+	// else, use DefWindowProc
+	if (pWnd)
+		return pWnd->WinMsgHandler(hwnd, uMsg, wParam, lParam);
+	else
+		return DefWindowProc(hwnd, uMsg, wParam, lParam);
+}
+
+bool CWindow::Create()
+{ 
+	// Create the window
+	RECT rect;
+
+	rect.top = 0;
+	rect.left = 0;
+	rect.right = 600;
+	rect.bottom = 400;
+
+	return Create(WS_OVERLAPPEDWINDOW | WS_VISIBLE, NULL, &rect);
+}
+
+bool CWindow::Create(DWORD dwStyles, HWND hParent /* = NULL */, RECT* rect /* = NULL */)
+{ 
+	return CreateEx(0, dwStyles, hParent, rect);	
+}
+
+bool CWindow::CreateEx(DWORD dwExStyles, DWORD dwStyles, HWND hParent /* = NULL */, RECT* rect /* = NULL */)
+{
+	// send the this pointer as the window creation parameter
+	if (rect == NULL)
+		m_hwnd = CreateWindowEx(dwExStyles, sClassName.c_str(), sWindowTitle.c_str(), dwStyles, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, hParent, NULL, hResource, (void *)this);
+	else
+	{
+		m_hwnd = CreateWindowEx(dwExStyles, sClassName.c_str(), sWindowTitle.c_str(), dwStyles, rect->left, rect->top, 
+			rect->right - rect->left, rect->bottom - rect->top, hParent, NULL, hResource, 
+			(void *)this);
+	}
+	return (m_hwnd != NULL);
+}
+
+void CWindow::SetTransparency(BYTE alpha, COLORREF color /* = 0xFF000000 */)
+{
+	if (alpha == 255)
+	{
+		LONG exstyle = GetWindowLongPtr(*this, GWL_EXSTYLE);
+		exstyle &= ~WS_EX_LAYERED;
+		SetWindowLongPtr(*this, GWL_EXSTYLE, exstyle);
+	}
+	else
+	{
+		LONG exstyle = GetWindowLongPtr(*this, GWL_EXSTYLE);
+		exstyle |= WS_EX_LAYERED;
+		SetWindowLongPtr(*this, GWL_EXSTYLE, exstyle);
+	}
+	COLORREF col = color;
+	DWORD flags = LWA_ALPHA;
+	if (col & 0xFF000000)
+	{
+		col = RGB(255, 255, 255);
+		flags = LWA_ALPHA;
+	}
+	else
+	{
+		flags = LWA_COLORKEY;
+	}
+	SetLayeredWindowAttributes(*this, col, alpha, flags);
+}
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