321 lines
10 KiB
C++
321 lines
10 KiB
C++
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#include "priv.h"
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#include "button.h"
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const static TCHAR c_szCoolButtonProp[] = TEXT("CCoolButton_This");
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/////////////////////////////////////////////////////////////////////////////
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// CCoolButton
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BOOL CCoolButton::Create(HWND hwndParent, INT_PTR nID, DWORD dwExStyle, DWORD dwStyle)
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{
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m_hwndButton = ::CreateWindowEx( dwExStyle, WC_BUTTON, NULL, dwStyle | WS_CHILD | WS_VISIBLE,
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0, 0, 0, 0, hwndParent, (HMENU)nID, HINST_THISDLL, NULL);
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if (m_hwndButton && SetProp(m_hwndButton, c_szCoolButtonProp, this))
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{
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SetWindowLongPtr(m_hwndButton, GWLP_USERDATA, (LPARAM)(WNDPROC)(GetWindowLongPtr(m_hwndButton, GWLP_WNDPROC)));
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SetWindowLongPtr(m_hwndButton, GWLP_WNDPROC, (LPARAM)s_ButtonWndSubclassProc);
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}
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DWORD dwBtnStyle = GetWindowLong(m_hwndButton, GWL_STYLE);
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dwBtnStyle |= BS_PUSHBUTTON | BS_OWNERDRAW;
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SetWindowLong(m_hwndButton, GWL_STYLE, dwBtnStyle);
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ShowWindow(m_hwndButton, SW_SHOW);
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return m_hwndButton == NULL ? FALSE : TRUE;
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}
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CCoolButton::~CCoolButton()
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{
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if (m_hwndButton)
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DestroyWindow(m_hwndButton);
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if (m_hImageList)
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ImageList_Destroy(m_hImageList);
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if (m_bstrText)
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SysFreeString(m_bstrText);
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if (m_fIsCapture)
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ReleaseCapture();
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if (m_hFont)
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DeleteObject(m_hFont);
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}
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LRESULT CALLBACK CCoolButton::s_ButtonWndSubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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CCoolButton* pThis = (CCoolButton*)GetProp(hwnd, c_szCoolButtonProp);
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if (!pThis)
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return DefWindowProcWrap(hwnd, uMsg, wParam, lParam);
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WNDPROC pfnOldWndProc = (WNDPROC)(GetWindowLongPtr(hwnd, GWLP_USERDATA));
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switch (uMsg)
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{
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case WM_ERASEBKGND:
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return (LRESULT)1;
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case WM_MEASUREITEM:
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{
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LPMEASUREITEMSTRUCT lpmis = (LPMEASUREITEMSTRUCT)lParam;
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IMAGEINFO imgInfo ;
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ImageList_GetImageInfo(pThis->m_hImageList, 0, &imgInfo);
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if (!pThis->m_bstrText)
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{
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lpmis->itemWidth = RECTWIDTH(imgInfo.rcImage) ;
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lpmis->itemHeight= RECTHEIGHT(imgInfo.rcImage) ;
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}
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else
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{
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lpmis->itemWidth = RECTWIDTH(imgInfo.rcImage) + 200;
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lpmis->itemHeight= RECTHEIGHT(imgInfo.rcImage) ;
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}
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}
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return TRUE;
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case WM_DRAWITEM:
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{
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LPDRAWITEMSTRUCT lpdis = (LPDRAWITEMSTRUCT)lParam;
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HDC hdc = lpdis->hDC;
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int nIndex = ((lpdis->itemState & ODS_DISABLED) ? 2 :
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((lpdis->itemState & ODS_SELECTED) ? 1 :
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((lpdis->itemState & ODS_FOCUS) ? 1 :
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(pThis->m_fHover) ? 1 : 0)));
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RECT rcClient;
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GetClientRect(hwnd,&rcClient);
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HDC hdcMem = CreateCompatibleDC(hdc);
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HBITMAP hbmp = CreateCompatibleBitmap(hdc, RECTWIDTH(rcClient),RECTHEIGHT(rcClient));
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HBITMAP hOldBmp = (HBITMAP)SelectObject(hdcMem, hbmp);
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// fill rgn
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HBRUSH hBrush = CreateSolidBrush(RGB(244,244,240));
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if (hBrush)
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{
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FillRect(hdcMem, &rcClient, hBrush);
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DeleteObject(hBrush);
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}
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BOOL fEnabled = (lpdis->itemState & ODS_DISABLED) ? FALSE : TRUE ;
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// Draw Button to the screen
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IMAGEINFO imgInfo ;
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ImageList_GetImageInfo(pThis->m_hImageList, nIndex, &imgInfo);
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ImageList_Draw(pThis->m_hImageList, nIndex, hdcMem, RECTWIDTH(rcClient) - RECTWIDTH(imgInfo.rcImage), 0, ILD_NORMAL);
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RECT rcFormat = { rcClient.left+2, rcClient.top , RECTWIDTH(rcClient)- RECTWIDTH(imgInfo.rcImage)-8, RECTHEIGHT(rcClient) };
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if (pThis->m_bstrText)
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{
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// Get the caption to draw
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LPWSTR pszText = L"";
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pszText = pThis->m_bstrText;
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int nBkMode = SetBkMode(hdcMem, TRANSPARENT);
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HFONT hFontOld = (HFONT) SelectObject(hdcMem, pThis->m_hFont);
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int nOldTextColor = SetTextColor(hdcMem, RGB(0,255,0));
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::DrawText(hdcMem, pszText, -1, &rcFormat, pThis->GetDrawTextFlags());
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/*
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int nOldTextColor = 0;
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// draw button caption depending upon button state
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if (fEnabled)
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{
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nOldTextColor = SetTextColor(hdcMem, GetSysColor(COLOR_BTNTEXT));
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::DrawText(hdcMem, pszText, -1, &rcFormat, pThis->GetDrawTextFlags());
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}
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else
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{
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nOldTextColor = SetTextColor(hdcMem, GetSysColor(COLOR_3DHILIGHT));
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::DrawText(hdcMem, pszText, -1, &rcFormat, pThis->GetDrawTextFlags());
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SetTextColor(hdcMem, nOldTextColor);
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nOldTextColor = SetTextColor(hdcMem, GetSysColor(COLOR_3DSHADOW));
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::DrawText(hdcMem, pszText, -1, &rcFormat, pThis->GetDrawTextFlags());
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SetTextColor(hdcMem, nOldTextColor);
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}
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*/
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SelectObject(hdcMem, hFontOld);
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SetBkMode(hdcMem, nBkMode);
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}
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BitBlt(hdc, 0, 0, RECTWIDTH(rcClient), RECTHEIGHT(rcClient),hdcMem, 0, 0,SRCCOPY);
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SelectObject(hdcMem, hOldBmp);
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DeleteObject(hbmp);
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DeleteDC(hdcMem);
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}
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return TRUE;
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case WM_LBUTTONDBLCLK :
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case WM_LBUTTONDOWN:
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{
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POINT pt = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
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pThis->CheckHover(pt);
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if (pThis->m_fHover && (UINT)wParam & MK_LBUTTON && !pThis->m_fMouseDown)
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{
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pThis->m_fMouseDown = TRUE;
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CallWindowProc(pfnOldWndProc, hwnd, uMsg, wParam, lParam);
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if (BT_MENU == pThis->GetButtonType())
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{
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SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(GetDlgCtrlID(hwnd),BN_CLICKED), (LPARAM)(hwnd));
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}
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return 0;
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}
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}
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break;
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case WM_LBUTTONUP:
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{
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CallWindowProc(pfnOldWndProc, hwnd, uMsg, wParam, lParam);
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pThis->m_fMouseDown = FALSE;
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if (pThis->m_fIsCapture)
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{
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ReleaseCapture();
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pThis->m_fIsCapture = FALSE;
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}
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POINT pt = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
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pThis->CheckHover(pt);
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}
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return 0;
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case WM_MOUSEMOVE:
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{
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CallWindowProc(pfnOldWndProc, hwnd, uMsg, wParam, lParam);
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POINT pt = {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
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pThis->CheckHover(pt);
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if (pThis->m_fHover && (UINT)wParam & MK_LBUTTON)
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{
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pThis->m_fMouseDown = TRUE;
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}
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RedrawWindow(hwnd,NULL,NULL,RDW_INVALIDATE | RDW_UPDATENOW | RDW_ERASE);
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}
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break;
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case WM_KEYDOWN:
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{
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SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(GetDlgCtrlID(hwnd),BN_CLICKED), (LPARAM)(pThis->m_hwndButton));
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RedrawWindow(hwnd,NULL,NULL,RDW_INVALIDATE | RDW_UPDATENOW | RDW_ERASE);
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}
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break;
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case WM_KILLFOCUS:
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{
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if (pThis->m_fIsCapture)
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{
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ReleaseCapture();
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pThis->m_fIsCapture = FALSE;
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}
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pThis->m_fHover = FALSE ;
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pThis->m_fHasFocus = FALSE ;
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pThis->m_fMouseDown = FALSE ;
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RedrawWindow(hwnd,NULL,NULL,RDW_INVALIDATE | RDW_UPDATENOW | RDW_ERASE);
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}
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break;
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case WM_SETFOCUS:
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{
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if (!pThis->m_fIsCapture)
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{
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SetCapture(hwnd);
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pThis->m_fIsCapture = TRUE;
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}
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pThis->m_fHasFocus = TRUE ;
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RedrawWindow(hwnd,NULL,NULL,RDW_INVALIDATE | RDW_UPDATENOW | RDW_ERASE);
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}
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break;
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case WM_DESTROY:
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{
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//
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// Unsubclass myself.
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//
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RemoveProp(hwnd, c_szCoolButtonProp);
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if (pfnOldWndProc)
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{
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SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR) pfnOldWndProc);
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}
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}
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break;
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}
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return CallWindowProc(pfnOldWndProc, hwnd, uMsg, wParam, lParam);
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}
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BOOL CCoolButton::LoadBitmaps(UINT nImageList, UINT iImageWidth)
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{
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if (m_hImageList)
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ImageList_Destroy(m_hImageList);
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m_hImageList = ImageList_LoadImage(HINST_THISDLL, MAKEINTRESOURCE(nImageList),
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iImageWidth, 0, CLR_NONE, IMAGE_BITMAP, LR_CREATEDIBSECTION);
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SizeToContent();
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return m_hImageList != NULL;
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}
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// SizeToContent will resize the button to the size of the bitmap
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HRESULT
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CCoolButton::SizeToContent()
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{
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SIZE sizeContent ;
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GetButtonSize(sizeContent);
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if (SetWindowPos(m_hwndButton,HWND_TOP, 0, 0, sizeContent.cx,sizeContent.cy,
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SWP_NOMOVE|SWP_NOZORDER|SWP_NOREDRAW|SWP_NOACTIVATE))
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{
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return S_OK;
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}
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return S_FALSE;
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}
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VOID
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CCoolButton::CheckHover(POINT pt)
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{
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if (HitTest(pt))
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{
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if (!m_fIsCapture || GetCapture() != m_hwndButton)
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{
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SetCapture(m_hwndButton);
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m_fIsCapture = TRUE;
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}
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if (!m_fHover)
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{
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m_fHover = TRUE;
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RedrawWindow(m_hwndButton,NULL,NULL,RDW_INVALIDATE | RDW_UPDATENOW | RDW_ERASE);
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}
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}
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else
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{
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if (m_fIsCapture)
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{
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m_fIsCapture = FALSE;
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ReleaseCapture();
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}
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m_fHover = FALSE;
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RedrawWindow(m_hwndButton,NULL,NULL,RDW_INVALIDATE | RDW_UPDATENOW | RDW_ERASE);
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}
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}
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BOOL CCoolButton::HitTest(POINT point)
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{
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RECT rcClient;
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GetClientRect(m_hwndButton, &rcClient);
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return ::PtInRect(&rcClient, point);
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}
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