Mercurial > vba-linux

     1 // ColorButton.cpp : implementation file

     2 //

     3 

     4 #include "stdafx.h"

     5 #include "ColorButton.h"

     6 

     7 bool ColorButton::isRegistered = false;

     8 

     9 /////////////////////////////////////////////////////////////////////////////

    10 // ColorButton

    11 

    12 ColorButton::ColorButton()

    13 {

    14   color = 0;

    15   registerClass();

    16 }

    17 

    18 ColorButton::~ColorButton()

    19 {

    20 }

    21 

    22 

    23 BEGIN_MESSAGE_MAP(ColorButton, CButton)

    24   //{{AFX_MSG_MAP(ColorButton)

    25   // NOTE - the ClassWizard will add and remove mapping macros here.

    26   //}}AFX_MSG_MAP

    27   END_MESSAGE_MAP()

    28 

    29   /////////////////////////////////////////////////////////////////////////////

    30 // ColorButton message handlers

    31 

    32 void ColorButton::PreSubclassWindow()

    33 {

    34   SetWindowLong(m_hWnd, GWL_STYLE, GetStyle() | BS_OWNERDRAW);

    35   CWnd::PreSubclassWindow();

    36 }

    37 

    38 void ColorButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)

    39 {

    40   ASSERT(lpDrawItemStruct);

    41   

    42   int r = (color & 0x1f) << 3;

    43   int g = (color & 0x3e0) >> 2;

    44   int b = (color & 0x7c00) >> 7;

    45 

    46   HDC dc = lpDrawItemStruct->hDC;

    47   UINT state = lpDrawItemStruct->itemState;

    48   RECT rect = lpDrawItemStruct->rcItem;

    49 

    50   SIZE margins;

    51   margins.cx = ::GetSystemMetrics(SM_CXEDGE);

    52   margins.cy = ::GetSystemMetrics(SM_CYEDGE);

    53 

    54   if(GetState() & BST_PUSHED)

    55     DrawEdge(dc, &rect, EDGE_SUNKEN, BF_RECT);

    56   else

    57     DrawEdge(dc, &rect, EDGE_RAISED, BF_RECT);

    58 

    59   InflateRect(&rect, -margins.cx, -margins.cy);

    60   

    61   HBRUSH br = CreateSolidBrush((state & ODS_DISABLED) ? 

    62                                ::GetSysColor(COLOR_3DFACE) : RGB(r,g,b));

    63 

    64   FillRect(dc, &rect, br);

    65 

    66   if(state & ODS_FOCUS) {

    67     InflateRect(&rect, -1, -1);

    68     DrawFocusRect(dc, &rect);

    69   }

    70   

    71   DeleteObject(br);

    72 }

    73 

    74 void ColorButton::setColor(u16 c)

    75 {

    76   color = c;

    77   Invalidate();

    78 }

    79 

    80 void ColorButton::registerClass()

    81 {

    82   if(!isRegistered) {

    83     WNDCLASS wc;

    84     ZeroMemory(&wc, sizeof(wc));

    85     wc.style = CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;

    86     wc.lpfnWndProc = (WNDPROC)::DefWindowProc;

    87     wc.hInstance = AfxGetInstanceHandle();

    88     wc.hIcon = LoadCursor(NULL, IDC_ARROW);

    89     wc.hbrBackground = (HBRUSH )GetStockObject(BLACK_BRUSH);

    90     wc.lpszMenuName = NULL;

    91     wc.lpszClassName = "VbaColorButton";

    92     AfxRegisterClass(&wc);

    93     isRegistered = true;

    94   }

    95 }
author	Robert McIntyre <rlm@mit.edu>
date	Sat, 03 Mar 2012 10:31:27 -0600
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