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1 // ColorButton.cpp : implementation file
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2 //
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3
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4 #include "stdafx.h"
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5 #include "ColorButton.h"
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6
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7 bool ColorButton::isRegistered = false;
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8
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9 /////////////////////////////////////////////////////////////////////////////
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10 // ColorButton
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11
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12 ColorButton::ColorButton()
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13 {
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14 color = 0;
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15 registerClass();
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16 }
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17
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18 ColorButton::~ColorButton()
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19 {
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20 }
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21
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22
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23 BEGIN_MESSAGE_MAP(ColorButton, CButton)
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24 //{{AFX_MSG_MAP(ColorButton)
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25 // NOTE - the ClassWizard will add and remove mapping macros here.
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26 //}}AFX_MSG_MAP
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27 END_MESSAGE_MAP()
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28
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29 /////////////////////////////////////////////////////////////////////////////
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30 // ColorButton message handlers
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31
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32 void ColorButton::PreSubclassWindow()
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33 {
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34 SetWindowLong(m_hWnd, GWL_STYLE, GetStyle() | BS_OWNERDRAW);
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35 CWnd::PreSubclassWindow();
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36 }
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37
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38 void ColorButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
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39 {
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40 ASSERT(lpDrawItemStruct);
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41
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42 int r = (color & 0x1f) << 3;
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43 int g = (color & 0x3e0) >> 2;
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44 int b = (color & 0x7c00) >> 7;
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45
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46 HDC dc = lpDrawItemStruct->hDC;
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47 UINT state = lpDrawItemStruct->itemState;
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48 RECT rect = lpDrawItemStruct->rcItem;
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49
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50 SIZE margins;
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51 margins.cx = ::GetSystemMetrics(SM_CXEDGE);
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52 margins.cy = ::GetSystemMetrics(SM_CYEDGE);
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53
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54 if(GetState() & BST_PUSHED)
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55 DrawEdge(dc, &rect, EDGE_SUNKEN, BF_RECT);
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56 else
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57 DrawEdge(dc, &rect, EDGE_RAISED, BF_RECT);
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58
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59 InflateRect(&rect, -margins.cx, -margins.cy);
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60
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61 HBRUSH br = CreateSolidBrush((state & ODS_DISABLED) ?
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62 ::GetSysColor(COLOR_3DFACE) : RGB(r,g,b));
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63
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64 FillRect(dc, &rect, br);
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65
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66 if(state & ODS_FOCUS) {
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67 InflateRect(&rect, -1, -1);
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68 DrawFocusRect(dc, &rect);
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69 }
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70
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71 DeleteObject(br);
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72 }
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73
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74 void ColorButton::setColor(u16 c)
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75 {
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76 color = c;
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77 Invalidate();
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78 }
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79
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80 void ColorButton::registerClass()
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81 {
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82 if(!isRegistered) {
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83 WNDCLASS wc;
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84 ZeroMemory(&wc, sizeof(wc));
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85 wc.style = CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
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86 wc.lpfnWndProc = (WNDPROC)::DefWindowProc;
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87 wc.hInstance = AfxGetInstanceHandle();
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88 wc.hIcon = LoadCursor(NULL, IDC_ARROW);
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89 wc.hbrBackground = (HBRUSH )GetStockObject(BLACK_BRUSH);
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90 wc.lpszMenuName = NULL;
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91 wc.lpszClassName = "VbaColorButton";
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92 AfxRegisterClass(&wc);
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93 isRegistered = true;
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94 }
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95 }
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