CPaletteWindow Class Reference

#include <palette.h>

Inheritance diagram for CPaletteWindow:

Collaboration diagram for CPaletteWindow:

Public Member Functions
	CPaletteWindow ()
virtual	~CPaletteWindow ()

Protected Member Functions
LRESULT	OnEraseBkgnd (UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
LRESULT	OnPaint (UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
LRESULT	OnLButtonDown (UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
LRESULT	OnRButtonDown (UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
LRESULT	OnLButtonDblClk (UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
LRESULT	OnRButtonDblClk (UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
LRESULT	OnMouseMove (UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
LRESULT	OnLButtonUp (UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
LRESULT	OnPaletteModelColorChanged (UINT nMsg, WPARAM wParam, LPARAM lParam, BOOL &bHandled)
INT	DoHitTest (INT xPos, INT yPos) const

Protected Attributes
HBITMAP	m_hbmCached

Detailed Description

Definition at line 14 of file palette.h.

Constructor & Destructor Documentation

CPaletteWindow()

CPaletteWindow::CPaletteWindow

(

)

Definition at line 23 of file palette.cpp.

    : m_hbmCached(NULL)
{
}

~CPaletteWindow()

CPaletteWindow::~CPaletteWindow ( )

virtual

Definition at line 28 of file palette.cpp.

{
    if (m_hbmCached)
        ::DeleteObject(m_hbmCached);
}

Member Function Documentation

DoHitTest()

INT CPaletteWindow::DoHitTest ( INT  xPos, INT  yPos  ) const

protected

Definition at line 55 of file palette.cpp.

{
    RECT rcClient;
    GetClientRect(&rcClient);
 
    /* delta x and y */
    INT dx = (xPos - X_COLORBOX_OFFSET), dy = (yPos - Y_MARGIN);
 
    /* horizontal and vertical indexes */
    INT ix = (dx / CXY_COLORBOX), iy = (dy / CXY_COLORBOX);
 
    /* Is it inside of a color box? */
    if (0 <= ix && ix < HALF_COLOR_COUNT && 0 <= iy && iy < 2)
        return ix + (iy * HALF_COLOR_COUNT); /* return the color index */
 
    return -1; /* Not found */
}

Referenced by OnLButtonDblClk(), OnLButtonDown(), OnRButtonDblClk(), and OnRButtonDown().

OnEraseBkgnd()

LRESULT CPaletteWindow::OnEraseBkgnd ( UINT  nMsg, WPARAM  wParam, LPARAM  lParam, BOOL &  bHandled  )

protected

Definition at line 73 of file palette.cpp.

{
    return TRUE; /* Avoid flickering */
}

OnLButtonDblClk()

LRESULT CPaletteWindow::OnLButtonDblClk ( UINT  nMsg, WPARAM  wParam, LPARAM  lParam, BOOL &  bHandled  )

protected

Definition at line 157 of file palette.cpp.

{
    INT iColor = DoHitTest(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
    COLORREF rgbColor = paletteModel.GetFgColor();
    if (iColor != -1 && mainWindow.ChooseColor(&rgbColor))
    {
        paletteModel.SetColor(iColor, rgbColor);
        paletteModel.SetFgColor(rgbColor);
    }
    return 0;
}

OnLButtonDown()

LRESULT CPaletteWindow::OnLButtonDown ( UINT  nMsg, WPARAM  wParam, LPARAM  lParam, BOOL &  bHandled  )

protected

Definition at line 140 of file palette.cpp.

{
    INT iColor = DoHitTest(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
    if (iColor != -1)
        paletteModel.SetFgColor(paletteModel.GetColor(iColor));
    SetCapture();
    return 0;
}

OnLButtonUp()

LRESULT CPaletteWindow::OnLButtonUp ( UINT  nMsg, WPARAM  wParam, LPARAM  lParam, BOOL &  bHandled  )

protected

Definition at line 211 of file palette.cpp.

{
    if (::GetCapture() != m_hWnd)
        return 0;
 
    ::ReleaseCapture();
    return 0;
}

OnMouseMove()

LRESULT CPaletteWindow::OnMouseMove ( UINT  nMsg, WPARAM  wParam, LPARAM  lParam, BOOL &  bHandled  )

protected

Definition at line 187 of file palette.cpp.

{
    if (::GetCapture() != m_hWnd)
        return 0;
 
    POINT pt = { GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam) };
    ClientToScreen(&pt);
 
    RECT rc;
    mainWindow.GetWindowRect(&rc);
 
    POINT ptCenter = { (rc.left + rc.right) / 2, (rc.top + rc.bottom) / 2 };
 
    DWORD dwExpectedBar1ID = ((pt.y < ptCenter.y) ? BAR1ID_TOP : BAR1ID_BOTTOM);
 
    if (registrySettings.Bar1ID != dwExpectedBar1ID)
    {
        registrySettings.Bar1ID = dwExpectedBar1ID;
        mainWindow.PostMessage(WM_SIZE, 0, 0);
    }
 
    return 0;
}

OnPaint()

LRESULT CPaletteWindow::OnPaint ( UINT  nMsg, WPARAM  wParam, LPARAM  lParam, BOOL &  bHandled  )

protected

Definition at line 78 of file palette.cpp.

{
    RECT rc, rcClient;
    GetClientRect(&rcClient);
 
    PAINTSTRUCT ps;
    HDC hDC = BeginPaint(&ps);
 
    /* To avoid flickering, we use a memory bitmap.
       The left and top values are zeros in client rectangle */
    HDC hMemDC = ::CreateCompatibleDC(hDC);
    m_hbmCached = CachedBufferDIB(m_hbmCached, rcClient.right, rcClient.bottom);
    HGDIOBJ hbmOld = ::SelectObject(hMemDC, m_hbmCached);
 
    /* Fill the background (since WM_ERASEBKGND handling is disabled) */
    ::FillRect(hMemDC, &rcClient, (HBRUSH)(COLOR_3DFACE + 1));
 
    /* Draw the big box that contains the black box and the white box */
    rc = { X_MARGIN, Y_MARGIN, X_MARGIN + CXY_BIGBOX, Y_MARGIN + CXY_BIGBOX };
    ::DrawEdge(hMemDC, &rc, EDGE_SUNKEN, BF_RECT | BF_ADJUST);
    COLORREF rgbLight = ::GetSysColor(COLOR_3DHIGHLIGHT);
    for (INT y = rc.top; y < rc.bottom; ++y)
    {
        BOOL bLight = (y & 1);
        for (INT x = rc.left; x < rc.right; ++x)
        {
            if (bLight)
                ::SetPixelV(hMemDC, x, y, rgbLight);
            bLight = !bLight;
        }
    }
 
    /* Draw the white box in the big box, at 5/8 position */
    rc.left = X_MARGIN + (CXY_BIGBOX * 5 / 8) - (CXY_SELECTEDBOX / 2);
    rc.top = Y_MARGIN + (CXY_BIGBOX * 5 / 8) - (CXY_SELECTEDBOX / 2);
    rc.right = rc.left + CXY_SELECTEDBOX;
    rc.bottom = rc.top + CXY_SELECTEDBOX;
    drawColorBox(hMemDC, &rc, paletteModel.GetBgColor(), BDR_RAISEDINNER);
 
    /* Draw the black box (overlapping the white box), at 3/8 position */
    rc.left = X_MARGIN + (CXY_BIGBOX * 3 / 8) - (CXY_SELECTEDBOX / 2);
    rc.top = Y_MARGIN + (CXY_BIGBOX * 3 / 8) - (CXY_SELECTEDBOX / 2);
    rc.right = rc.left + CXY_SELECTEDBOX;
    rc.bottom = rc.top + CXY_SELECTEDBOX;
    drawColorBox(hMemDC, &rc, paletteModel.GetFgColor(), BDR_RAISEDINNER);
 
    /* Draw the normal color boxes */
    for (INT i = 0; i < COLOR_COUNT; i++)
    {
        getColorBoxRect(&rc, rcClient, i);
        drawColorBox(hMemDC, &rc, paletteModel.GetColor(i), BDR_SUNKENOUTER);
    }
 
    /* Transfer bits (hDC <-- hMemDC) */
    ::BitBlt(hDC, 0, 0, rcClient.right, rcClient.bottom, hMemDC, 0, 0, SRCCOPY);
 
    ::SelectObject(hMemDC, hbmOld);
    ::DeleteDC(hMemDC);
    EndPaint(&ps);
    return 0;
}

OnPaletteModelColorChanged()

LRESULT CPaletteWindow::OnPaletteModelColorChanged ( UINT  nMsg, WPARAM  wParam, LPARAM  lParam, BOOL &  bHandled  )

protected

Definition at line 181 of file palette.cpp.

{
    Invalidate(FALSE);
    return 0;
}

OnRButtonDblClk()

LRESULT CPaletteWindow::OnRButtonDblClk ( UINT  nMsg, WPARAM  wParam, LPARAM  lParam, BOOL &  bHandled  )

protected

Definition at line 169 of file palette.cpp.

{
    INT iColor = DoHitTest(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
    COLORREF rgbColor = paletteModel.GetBgColor();
    if (iColor != -1 && mainWindow.ChooseColor(&rgbColor))
    {
        paletteModel.SetColor(iColor, rgbColor);
        paletteModel.SetBgColor(rgbColor);
    }
    return 0;
}

OnRButtonDown()

LRESULT CPaletteWindow::OnRButtonDown ( UINT  nMsg, WPARAM  wParam, LPARAM  lParam, BOOL &  bHandled  )

protected

Definition at line 149 of file palette.cpp.

{
    INT iColor = DoHitTest(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam));
    if (iColor != -1)
        paletteModel.SetBgColor(paletteModel.GetColor(iColor));
    return 0;
}

Member Data Documentation

m_hbmCached

HBITMAP CPaletteWindow::m_hbmCached

protected

Definition at line 35 of file palette.h.

Referenced by OnPaint(), and ~CPaletteWindow().

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The documentation for this class was generated from the following files:

• base/applications/mspaint/palette.h
• base/applications/mspaint/palette.cpp