// CommitMonitor - simple checker for new commits in svn repositories
// Copyright (C) 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 "DiffViewer.h"
#include "SciLexer.h"
#include "Registry.h"
#include "UnicodeUtils.h"
#include "resource.h"
#include <stdio.h>
extern HINSTANCE hInst;
CDiffViewer::CDiffViewer(HINSTANCE hInst, const WNDCLASSEX* wcx /* = NULL*/)
: CWindow(hInst, wcx)
, m_bShowFindBar(false)
{
Scintilla_RegisterClasses(hInst);
SetWindowTitle(_T("CommitMonitorDiff"));
}
CDiffViewer::~CDiffViewer(void)
{
}
bool CDiffViewer::RegisterAndCreateWindow()
{
WNDCLASSEX wcx;
// Fill in the window class structure with default parameters
wcx.cbSize = sizeof(WNDCLASSEX);
wcx.style = CS_HREDRAW | CS_VREDRAW;
wcx.lpfnWndProc = CWindow::stWinMsgHandler;
wcx.cbClsExtra = 0;
wcx.cbWndExtra = 0;
wcx.hInstance = hResource;
wcx.hCursor = NULL;
wcx.lpszClassName = ResString(hResource, IDS_APP_TITLE);
wcx.hIcon = LoadIcon(hResource, MAKEINTRESOURCE(IDI_DIFF));
wcx.hbrBackground = (HBRUSH)(COLOR_3DFACE+1);
wcx.lpszMenuName = NULL;
wcx.hIconSm = LoadIcon(wcx.hInstance, MAKEINTRESOURCE(IDI_DIFF));
if (RegisterWindow(&wcx))
{
if (Create(WS_CAPTION | WS_MAXIMIZEBOX | WS_MINIMIZEBOX | WS_SIZEBOX | WS_SYSMENU | WS_CLIPCHILDREN, NULL))
{
m_FindBar.SetParent(*this);
m_FindBar.Create(hInst, IDD_FINDBAR, *this);
ShowWindow(*this, SW_SHOW);
UpdateWindow(*this);
return true;
}
}
return false;
}
LRESULT CALLBACK CDiffViewer::WinMsgHandler(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
case WM_CREATE:
{
m_hwnd = hwnd;
Initialize();
}
break;
case WM_COMMAND:
{
return DoCommand(LOWORD(wParam));
}
break;
case WM_MOUSEWHEEL:
{
if (GET_KEYSTATE_WPARAM(wParam) == MK_SHIFT)
{
// scroll sideways
SendEditor(SCI_LINESCROLL, -GET_WHEEL_DELTA_WPARAM(wParam)/40, 0);
}
else
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
break;
case WM_SIZE:
{
RECT rect;
GetClientRect(*this, &rect);
if (m_bShowFindBar)
{
::SetWindowPos(m_hWndEdit, HWND_TOP,
rect.left, rect.top,
rect.right-rect.left, rect.bottom-rect.top-30,
SWP_SHOWWINDOW);
::SetWindowPos(m_FindBar, HWND_TOP,
rect.left, rect.bottom-30,
rect.right-rect.left, 30,
SWP_SHOWWINDOW);
}
else
{
::SetWindowPos(m_hWndEdit, HWND_TOP,
rect.left, rect.top,
rect.right-rect.left, rect.bottom-rect.top,
SWP_SHOWWINDOW);
::ShowWindow(m_FindBar, SW_HIDE);
}
}
break;
case WM_GETMINMAXINFO:
{
MINMAXINFO * mmi = (MINMAXINFO*)lParam;
mmi->ptMinTrackSize.x = 100;
mmi->ptMinTrackSize.y = 100;
return 0;
}
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_CLOSE:
{
CRegStdWORD w = CRegStdWORD(_T("Software\\CommitMonitor\\DiffViewerWidth"), (DWORD)CW_USEDEFAULT);
CRegStdWORD h = CRegStdWORD(_T("Software\\CommitMonitor\\DiffViewerHeight"), (DWORD)CW_USEDEFAULT);
RECT rect;
::GetWindowRect(*this, &rect);
w = rect.right-rect.left;
h = rect.bottom-rect.top;
}
::DestroyWindow(m_hwnd);
break;
case COMMITMONITOR_FINDMSGNEXT:
{
SendEditor(SCI_CHARRIGHT);
SendEditor(SCI_SEARCHANCHOR);
m_bMatchCase = !!wParam;
m_findtext = (LPCTSTR)lParam;
SendEditor(SCI_SEARCHNEXT, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());
SendEditor(SCI_SCROLLCARET);
}
break;
case COMMITMONITOR_FINDMSGPREV:
{
SendEditor(SCI_SEARCHANCHOR);
m_bMatchCase = !!wParam;
m_findtext = (LPCTSTR)lParam;
SendEditor(SCI_SEARCHPREV, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());
SendEditor(SCI_SCROLLCARET);
}
break;
case COMMITMONITOR_FINDEXIT:
{
if (IsWindowVisible(m_FindBar))
{
RECT rect;
GetClientRect(*this, &rect);
m_bShowFindBar = false;
::ShowWindow(m_FindBar, SW_HIDE);
::SetWindowPos(m_hWndEdit, HWND_TOP,
rect.left, rect.top,
rect.right-rect.left, rect.bottom-rect.top,
SWP_SHOWWINDOW);
}
else
PostQuitMessage(0);
}
break;
case COMMITMONITOR_FINDRESET:
SendEditor(SCI_SETSELECTIONSTART, 0);
SendEditor(SCI_SETSELECTIONEND, 0);
SendEditor(SCI_SEARCHANCHOR);
break;
default:
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
return 0;
};
LRESULT CDiffViewer::DoCommand(int id)
{
switch (id)
{
case IDM_EXIT:
::PostQuitMessage(0);
return 0;
case IDM_SHOWFINDBAR:
{
m_bShowFindBar = true;
::ShowWindow(m_FindBar, SW_SHOW);
RECT rect;
GetClientRect(*this, &rect);
::SetWindowPos(m_hWndEdit, HWND_TOP,
rect.left, rect.top,
rect.right-rect.left, rect.bottom-rect.top-30,
SWP_SHOWWINDOW);
::SetWindowPos(m_FindBar, HWND_TOP,
rect.left, rect.bottom-30,
rect.right-rect.left, 30,
SWP_SHOWWINDOW);
::SetFocus(m_FindBar);
SendEditor(SCI_SETSELECTIONSTART, 0);
SendEditor(SCI_SETSELECTIONEND, 0);
SendEditor(SCI_SEARCHANCHOR);
}
break;
case IDM_FINDNEXT:
SendEditor(SCI_CHARRIGHT);
SendEditor(SCI_SEARCHANCHOR);
SendEditor(SCI_SEARCHNEXT, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());
SendEditor(SCI_SCROLLCARET);
break;
case IDM_FINDPREV:
SendEditor(SCI_SEARCHANCHOR);
SendEditor(SCI_SEARCHPREV, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());
SendEditor(SCI_SCROLLCARET);
break;
case IDM_FINDEXIT:
{
if (!m_bShowFindBar)
{
::PostQuitMessage(0);
return 0;
}
RECT rect;
GetClientRect(*this, &rect);
m_bShowFindBar = false;
::ShowWindow(m_FindBar, SW_HIDE);
::SetWindowPos(m_hWndEdit, HWND_TOP,
rect.left, rect.top,
rect.right-rect.left, rect.bottom-rect.top,
SWP_SHOWWINDOW);
}
break;
default:
break;
};
return 1;
}
LRESULT CDiffViewer::SendEditor(UINT Msg, WPARAM wParam, LPARAM lParam)
{
if (m_directFunction)
{
return ((SciFnDirect) m_directFunction)(m_directPointer, Msg, wParam, lParam);
}
return ::SendMessage(m_hWndEdit, Msg, wParam, lParam);
}
bool CDiffViewer::Initialize()
{
::SetWindowPos(*this, HWND_TOP, 0, 0,
(int)(DWORD)CRegStdWORD(_T("Software\\CommitMonitor\\DiffViewerWidth"), (DWORD)640),
(int)(DWORD)CRegStdWORD(_T("Software\\CommitMonitor\\DiffViewerHeight"), (DWORD)480),
SWP_NOMOVE);
m_hWndEdit = ::CreateWindow(
_T("Scintilla"),
_T("Source"),
WS_CHILD | WS_VSCROLL | WS_HSCROLL | WS_CLIPCHILDREN,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
*this,
0,
hInst,
0);
if (m_hWndEdit == NULL)
return false;
RECT rect;
GetClientRect(*this, &rect);
::SetWindowPos(m_hWndEdit, HWND_TOP,
rect.left, rect.top,
rect.right-rect.left, rect.bottom-rect.top,
SWP_SHOWWINDOW);
m_directFunction = SendMessage(m_hWndEdit, SCI_GETDIRECTFUNCTION, 0, 0);
m_directPointer = SendMessage(m_hWndEdit, SCI_GETDIRECTPOINTER, 0, 0);
// Set up the global default style. These attributes are used wherever no explicit choices are made.
SetAStyle(STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOWTEXT), ::GetSysColor(COLOR_WINDOW), 10, "Courier New");
SendEditor(SCI_SETTABWIDTH, 4);
SendEditor(SCI_SETREADONLY, TRUE);
LRESULT pix = SendEditor(SCI_TEXTWIDTH, STYLE_LINENUMBER, (LPARAM)"_99999");
SendEditor(SCI_SETMARGINWIDTHN, 0, pix);
SendEditor(SCI_SETMARGINWIDTHN, 1);
SendEditor(SCI_SETMARGINWIDTHN, 2);
//Set the default windows colors for edit controls
SendEditor(SCI_STYLESETFORE, STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOWTEXT));
SendEditor(SCI_STYLESETBACK, STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOW));
SendEditor(SCI_SETSELFORE, TRUE, ::GetSysColor(COLOR_HIGHLIGHTTEXT));
SendEditor(SCI_SETSELBACK, TRUE, ::GetSysColor(COLOR_HIGHLIGHT));
SendEditor(SCI_SETCARETFORE, ::GetSysColor(COLOR_WINDOWTEXT));
return true;
}
bool CDiffViewer::LoadFile(LPCTSTR filename)
{
SendEditor(SCI_SETREADONLY, FALSE);
SendEditor(SCI_CLEARALL);
SendEditor(EM_EMPTYUNDOBUFFER);
SendEditor(SCI_SETSAVEPOINT);
SendEditor(SCI_CANCEL);
SendEditor(SCI_SETUNDOCOLLECTION, 0);
FILE *fp = NULL;
_tfopen_s(&fp, filename, _T("rb"));
if (fp)
{
//SetTitle();
char data[4096];
int lenFile = fread(data, 1, sizeof(data), fp);
bool bUTF8 = IsUTF8(data, lenFile);
while (lenFile > 0)
{
SendEditor(SCI_ADDTEXT, lenFile,
reinterpret_cast<LPARAM>(static_cast<char *>(data)));
lenFile = fread(data, 1, sizeof(data), fp);
}
fclose(fp);
SendEditor(SCI_SETCODEPAGE, bUTF8 ? SC_CP_UTF8 : GetACP());
}
else
{
return false;
}
SendEditor(SCI_SETUNDOCOLLECTION, 1);
::SetFocus(m_hWndEdit);
SendEditor(EM_EMPTYUNDOBUFFER);
SendEditor(SCI_SETSAVEPOINT);
SendEditor(SCI_GOTOPOS, 0);
SendEditor(SCI_SETREADONLY, TRUE);
SendEditor(SCI_CLEARDOCUMENTSTYLE, 0, 0);
SendEditor(SCI_SETSTYLEBITS, 5, 0);
//SetAStyle(SCE_DIFF_DEFAULT, RGB(0, 0, 0));
SetAStyle(SCE_DIFF_COMMAND, RGB(0x0A, 0x24, 0x36));
SetAStyle(SCE_DIFF_POSITION, RGB(0xFF, 0, 0));
SetAStyle(SCE_DIFF_HEADER, RGB(0x80, 0, 0), RGB(0xFF, 0xFF, 0x80));
SetAStyle(SCE_DIFF_COMMENT, RGB(0, 0x80, 0));
SendEditor(SCI_STYLESETBOLD, SCE_DIFF_COMMENT, TRUE);
SetAStyle(SCE_DIFF_DELETED, ::GetSysColor(COLOR_WINDOWTEXT), RGB(0xFF, 0x80, 0x80));
SetAStyle(SCE_DIFF_ADDED, ::GetSysColor(COLOR_WINDOWTEXT), RGB(0x80, 0xFF, 0x80));
SendEditor(SCI_SETLEXER, SCLEX_DIFF);
SendEditor(SCI_SETKEYWORDS, 0, (LPARAM)"revision");
SendEditor(SCI_COLOURISE, 0, -1);
::ShowWindow(m_hWndEdit, SW_SHOW);
return true;
}
void CDiffViewer::SetTitle(LPCTSTR title)
{
int len = _tcslen(title);
TCHAR * pBuf = new TCHAR[len+40];
_stprintf_s(pBuf, len+40, _T("%s - CMDiff"), title);
SetWindowTitle(wstring(pBuf));
delete [] pBuf;
}
void CDiffViewer::SetAStyle(int style, COLORREF fore, COLORREF back, int size, const char *face)
{
SendEditor(SCI_STYLESETFORE, style, fore);
SendEditor(SCI_STYLESETBACK, style, back);
if (size >= 1)
SendEditor(SCI_STYLESETSIZE, style, size);
if (face)
SendEditor(SCI_STYLESETFONT, style, reinterpret_cast<LPARAM>(face));
}
bool CDiffViewer::IsUTF8(LPVOID pBuffer, int cb)
{
if (cb < 2)
return true;
UINT16 * pVal = (UINT16 *)pBuffer;
UINT8 * pVal2 = (UINT8 *)(pVal+1);
// scan the whole buffer for a 0x0000 sequence
// if found, we assume a binary file
for (int i=0; i<(cb-2); i=i+2)
{
if (0x0000 == *pVal++)
return false;
}
pVal = (UINT16 *)pBuffer;
if (*pVal == 0xFEFF)
return false;
if (cb < 3)
return false;
if (*pVal == 0xBBEF)
{
if (*pVal2 == 0xBF)
return true;
}
// check for illegal UTF8 chars
pVal2 = (UINT8 *)pBuffer;
for (int i=0; i<cb; ++i)
{
if ((*pVal2 == 0xC0)||(*pVal2 == 0xC1)||(*pVal2 >= 0xF5))
return false;
pVal2++;
}
pVal2 = (UINT8 *)pBuffer;
bool bUTF8 = false;
for (int i=0; i<(cb-3); ++i)
{
if ((*pVal2 & 0xE0)==0xC0)
{
pVal2++;i++;
if ((*pVal2 & 0xC0)!=0x80)
return false;
bUTF8 = true;
}
if ((*pVal2 & 0xF0)==0xE0)
{
pVal2++;i++;
if ((*pVal2 & 0xC0)!=0x80)
return false;
pVal2++;i++;
if ((*pVal2 & 0xC0)!=0x80)
return false;
bUTF8 = true;
}
if ((*pVal2 & 0xF8)==0xF0)
{
pVal2++;i++;
if ((*pVal2 & 0xC0)!=0x80)
return false;
pVal2++;i++;
if ((*pVal2 & 0xC0)!=0x80)
return false;
pVal2++;i++;
if ((*pVal2 & 0xC0)!=0x80)
return false;
bUTF8 = true;
}
pVal2++;
}
if (bUTF8)
return true;
return false;
}
