256 lines
6.9 KiB
C++
256 lines
6.9 KiB
C++
//////////////////////////////////////////////////////////////////////
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED
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// TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (C) 2003 Microsoft Corporation. All rights reserved.
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//
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// ExtentVisual.cpp
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//
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// CExtentVisualWindow
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//
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//////////////////////////////////////////////////////////////////////
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#include "Globals.h"
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#include "TextService.h"
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#include "ExtentVisual.h"
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TCHAR CExtentVisualWindow::_szWndClass[] = TEXT("ExtentVisualWindow");
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//+---------------------------------------------------------------------------
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//
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// CExtentVisualWindow
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//
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//----------------------------------------------------------------------------
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//+---------------------------------------------------------------------------
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//
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// ctor
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//
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//----------------------------------------------------------------------------
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CExtentVisualWindow::CExtentVisualWindow(WCHAR *psz, COLORREF cr)
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{
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_hwnd = NULL;
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StringCchCopy(_sz, ARRAYSIZE(_sz), psz);
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_cr = cr;
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}
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//+---------------------------------------------------------------------------
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//
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// dtor
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//
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//----------------------------------------------------------------------------
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CExtentVisualWindow::~CExtentVisualWindow()
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{
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if (IsWindow(_hwnd))
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DestroyWindow(_hwnd);
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}
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//+---------------------------------------------------------------------------
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//
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// StaticInit
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//
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//----------------------------------------------------------------------------
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BOOL CExtentVisualWindow::StaticInit()
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{
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WNDCLASSEX wcex;
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memset(&wcex, 0, sizeof(wcex));
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wcex.cbSize = sizeof(wcex);
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wcex.style = CS_HREDRAW | CS_VREDRAW ;
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wcex.hInstance = g_hInst;
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wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
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wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
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wcex.lpfnWndProc = _WndProc;
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wcex.lpszClassName = _szWndClass;
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RegisterClassEx(&wcex);
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return TRUE;
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}
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//+---------------------------------------------------------------------------
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//
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// CreateWnd
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//
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//----------------------------------------------------------------------------
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HWND CExtentVisualWindow::CreateWnd()
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{
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if (_hwnd)
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return _hwnd;
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_hwnd = CreateWindowEx(WS_EX_TOPMOST | WS_EX_LAYERED, _szWndClass, TEXT(""),
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WS_POPUP | WS_DISABLED,
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0, 0, 0, 0,
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NULL, 0, g_hInst, this);
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// SetLayeredWindowAttributes(_hwnd, _cr, 240, LWA_COLORKEY | LWA_ALPHA);
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SetLayeredWindowAttributes(_hwnd, 0, 128, LWA_ALPHA);
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return _hwnd;
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}
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//+---------------------------------------------------------------------------
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//
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// _OwnerWndProc
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//
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//----------------------------------------------------------------------------
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LRESULT CALLBACK CExtentVisualWindow::_WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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CExtentVisualWindow *_this;
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HDC hdc;
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PAINTSTRUCT ps;
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_this = _GetThis(hwnd);
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switch (uMsg)
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{
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case WM_CREATE:
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_SetThis(hwnd, lParam);
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return 0;
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case WM_PAINT:
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hdc = BeginPaint(hwnd, &ps);
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if (_this)
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_this->OnPaint(hwnd, hdc);
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EndPaint(hwnd, &ps);
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break;
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default:
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return DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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return 0;
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}
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//+---------------------------------------------------------------------------
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//
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// Show
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//
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//----------------------------------------------------------------------------
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void CExtentVisualWindow::Show(RECT *prc)
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{
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if (!IsWindow(_hwnd))
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return;
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InvalidateRect(_hwnd, NULL, TRUE);
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SetWindowPos(_hwnd,
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HWND_TOPMOST,
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prc->left,
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prc->top,
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prc->right - prc->left > 2 ? prc->right - prc->left : 2,
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prc->bottom - prc->top > 2 ? prc->bottom - prc->top : 2,
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SWP_SHOWWINDOW | SWP_NOACTIVATE);
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}
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//+---------------------------------------------------------------------------
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//
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// Hide
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//
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//----------------------------------------------------------------------------
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void CExtentVisualWindow::Hide()
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{
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if (!IsWindow(_hwnd))
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return;
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ShowWindow(_hwnd, SW_HIDE);
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}
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//+---------------------------------------------------------------------------
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//
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// OnPaint
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//
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//----------------------------------------------------------------------------
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void CExtentVisualWindow::OnPaint(HWND hwnd, HDC hdc)
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{
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HFONT hfont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
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HFONT hfontOld = (HFONT)SelectObject(hdc, hfont);
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RECT rc;
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GetClientRect(hwnd, &rc);
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SetBkColor(hdc, _cr);
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// ExtTextOutW(hdc, 2, 2, ETO_OPAQUE, &rc, _sz, lstrlenW(_sz), NULL);
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ExtTextOutW(hdc, 2, 2, ETO_OPAQUE, &rc, _sz, 0, NULL);
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SelectObject(hdc, hfontOld);
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}
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//+---------------------------------------------------------------------------
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//
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// _EnsurePopupWindow
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//
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//----------------------------------------------------------------------------
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void CExtentMonitorTextService::_EnsureExtentVisualWindows()
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{
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if (!_pExtentVisualWinodowStartPos)
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_pExtentVisualWinodowStartPos = new CExtentVisualWindow(L"Start", 0x0000FF);
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if (_pExtentVisualWinodowStartPos)
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_pExtentVisualWinodowStartPos->CreateWnd();
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if (!_pExtentVisualWinodowEndPos)
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_pExtentVisualWinodowEndPos = new CExtentVisualWindow(L"End", 0xFF0000);
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if (_pExtentVisualWinodowEndPos)
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_pExtentVisualWinodowEndPos->CreateWnd();
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if (!_pExtentVisualWinodowSelection)
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_pExtentVisualWinodowSelection = new CExtentVisualWindow(L"Selection", 0x00FF00);
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if (_pExtentVisualWinodowSelection)
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_pExtentVisualWinodowSelection->CreateWnd();
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}
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//+---------------------------------------------------------------------------
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//
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// _UpdatePopupWindow
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//
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//----------------------------------------------------------------------------
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void CExtentMonitorTextService::_UpdateExtentVisualWindows()
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{
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if (_pExtentVisualWinodowStartPos)
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_pExtentVisualWinodowStartPos->Show(&_rcStartPos);
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if (_pExtentVisualWinodowEndPos)
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_pExtentVisualWinodowEndPos->Show(&_rcEndPos);
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if (_pExtentVisualWinodowSelection)
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_pExtentVisualWinodowSelection->Show(&_rcSelection);
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_fIsShownExtentVisualWindows = TRUE;
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}
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//+---------------------------------------------------------------------------
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//
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// _HidePopupWindow
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//
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//----------------------------------------------------------------------------
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void CExtentMonitorTextService::_HideExtentVisualWindows()
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{
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if (_pExtentVisualWinodowStartPos)
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_pExtentVisualWinodowStartPos->Hide();
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if (_pExtentVisualWinodowEndPos)
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_pExtentVisualWinodowEndPos->Hide();
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if (_pExtentVisualWinodowSelection)
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_pExtentVisualWinodowSelection->Hide();
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_fIsShownExtentVisualWindows = FALSE;
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}
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