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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkWin32OutputWindow.cxx,v $
Language: C++
Date: $Date: 2006-03-18 18:06:38 $
Version: $Revision: 1.21 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
Portions of this code are covered under the VTK copyright.
See VTKCopyright.txt or http://www.kitware.com/VTKCopyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "itkWin32OutputWindow.h"
#include "itkObjectFactory.h"
namespace itk
{
/** */
HWND Win32OutputWindow::m_OutputWindow = 0;
Win32OutputWindow
::~Win32OutputWindow()
{
if (Win32OutputWindow::m_OutputWindow)
{
DestroyWindow(Win32OutputWindow::m_OutputWindow);
Win32OutputWindow::m_OutputWindow = NULL;
}
}
/** */
LRESULT APIENTRY
Win32OutputWindow
::WndProc(HWND hWnd, UINT message,
WPARAM wParam,
LPARAM lParam)
{
switch (message)
{
case WM_SIZE:
{
/** width of client area */
int w = LOWORD(lParam);
/** height of client area */
int h = HIWORD(lParam);
MoveWindow(Win32OutputWindow::m_OutputWindow,
0, 0, w, h, true);
}
break;
case WM_DESTROY:
Win32OutputWindow::m_OutputWindow = NULL;
Object::GlobalWarningDisplayOff();
break;
case WM_CLOSE:
if (Win32OutputWindow::m_OutputWindow)
{
DestroyWindow(Win32OutputWindow::m_OutputWindow);
Win32OutputWindow::m_OutputWindow = NULL;
}
break;
case WM_CREATE:
break;
}
return DefWindowProc(hWnd, message, wParam, lParam);
}
/** Display text in the window, and translate the \n to \r\n. */
void
Win32OutputWindow
::DisplayText(const char* text)
{
if ( !text )
{
return;
}
if ( this->GetPromptUser() )
{
this->PromptText(text);
return;
}
/** Create a buffer big enough to hold the entire text */
char* buffer = new char[strlen(text)+1];
/** Start at the begining */
const char* NewLinePos = text;
while ( NewLinePos )
{
int len;
/** Find the next new line in text */
NewLinePos = strchr(text, '\n');
/** if no new line is found then just add the text */
if(NewLinePos == 0)
{
Win32OutputWindow::AddText(text);
}
/** if a new line is found copy it to the buffer
* and add the buffer with a control new line */
else
{
len = NewLinePos - text;
strncpy(buffer, text, len);
buffer[len] = 0;
text = NewLinePos+1;
Win32OutputWindow::AddText(buffer);
Win32OutputWindow::AddText("\r\n");
}
}
delete [] buffer;
}
/** Add some text to the EDIT control. */
void
Win32OutputWindow
::AddText(const char* text)
{
if(!Initialize() || (strlen(text) == 0))
{
return;
}
/** move to the end of the text area */
SendMessage( Win32OutputWindow::m_OutputWindow, EM_SETSEL,
(WPARAM)-1, (LPARAM)-1 );
/** Append the text to the control */
SendMessage( Win32OutputWindow::m_OutputWindow, EM_REPLACESEL,
0, (LPARAM)text );
}
/** initialize the output window with an EDIT control and
* a container window. */
int
Win32OutputWindow
::Initialize()
{
/** check to see if it is already initialized */
if(Win32OutputWindow::m_OutputWindow)
{
return 1;
}
/** Initialized the output window */
WNDCLASS wndClass;
/** has the class been registered ? */
if (!GetClassInfo(GetModuleHandle(NULL),"OutputWindow",&wndClass))
{
wndClass.style = CS_HREDRAW | CS_VREDRAW;
wndClass.lpfnWndProc = Win32OutputWindow::WndProc;
wndClass.cbClsExtra = 0;
wndClass.hInstance = GetModuleHandle(NULL);
wndClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wndClass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndClass.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
wndClass.lpszMenuName = NULL;
wndClass.lpszClassName = "OutputWindow";
/** doesn't use these extra 4 bytes, but app writers may want them,
* so we provide them. */
wndClass.cbWndExtra = 4;
RegisterClass(&wndClass);
}
/** create parent container window */
HWND win = CreateWindow(
"OutputWindow", "OutputWindow",
WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,
0, 0, 512, 512,
NULL, NULL, GetModuleHandle(NULL), NULL);
/** Now create child window with text display box */
CREATESTRUCT lpParam;
lpParam.hInstance = GetModuleHandle(NULL);
lpParam.hMenu = NULL;
lpParam.hwndParent = win;
lpParam.cx = 512;
lpParam.cy = 512;
lpParam.x = 0;
lpParam.y = 0;
lpParam.style = ES_MULTILINE | ES_READONLY | WS_CHILD
| ES_AUTOVSCROLL | ES_AUTOHSCROLL | WS_VISIBLE | WS_MAXIMIZE
| WS_VSCROLL | WS_HSCROLL;
lpParam.lpszName = "Output Control";
lpParam.lpszClass = "EDIT"; // use the RICHEDIT control widget
lpParam.dwExStyle = 0;
/**Create the EDIT window as a child of win */
Win32OutputWindow::m_OutputWindow = CreateWindow(
lpParam.lpszClass, // pointer to registered class name
"", // pointer to window name
lpParam.style, // window style
lpParam.x, // horizontal position of window
lpParam.y, // vertical position of window
lpParam.cx, // window width
lpParam.cy, // window height
lpParam.hwndParent, // handle to parent or owner window
NULL, // handle to menu or child-window identifier
lpParam.hInstance, // handle to application instance
&lpParam // pointer to window-creation data
);
const int maxsize = 5242880;
SendMessage(Win32OutputWindow::m_OutputWindow,
EM_LIMITTEXT, maxsize, 0L);
/** show the top level container window */
ShowWindow(win, SW_SHOW);
return 1;
}
/** Prompt some text */
void
Win32OutputWindow
::PromptText(const char* text)
{
OStringStream msg;
msg << text << "\nPress Cancel to supress any further messages.";
if (MessageBox(NULL, msg.str().c_str(), "Error",
MB_ICONERROR | MB_OKCANCEL) == IDCANCEL)
{
Object::GlobalWarningDisplayOff();
}
}
} // end namespace itk
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