// AdvButton.cpp : implementation file
//
#include "stdafx.h"
#include "AdvButton.h"
#include "AdvBtn.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CAdvButton
CAdvButton::CAdvButton()
{
m_nColor = GetSysColor(COLOR_BTNFACE);
m_sColor = m_nColor;
m_hColor = m_nColor;
m_dColor = m_nColor;
m_nBorder = 1;
m_lfEscapement = 0;
m_pNormal = NULL;
m_pSelected = NULL;
m_pHover = NULL;
m_pDisabled = NULL;
m_hRgn = 0;
m_bHover = false;
m_bCapture = false;
m_bMouseDown = false;
m_bNeedBitmaps = true;
}
CAdvButton::~CAdvButton()
{
delete m_pNormal;
delete m_pSelected;
delete m_pHover;
delete m_pDisabled;
DeleteObject(m_hRgn);
}
BEGIN_MESSAGE_MAP(CAdvButton, CButton)
//{{AFX_MSG_MAP(CAdvButton)
ON_WM_ERASEBKGND()
ON_WM_MOUSEMOVE()
ON_WM_CREATE()
ON_WM_LBUTTONDOWN()
ON_WM_LBUTTONUP()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CAdvButton message handlers
BOOL CAdvButton::Create(LPCTSTR lpszCaption, DWORD dwStyle, const CPoint point, const HRGN hRgn, CWnd* pParentWnd, UINT nID)
{
DeleteObject(m_hRgn);
m_hRgn = CreateRectRgn(0, 0, 31, 31);
CRect box(0, 0, 0, 0);
if (m_hRgn != 0)
CombineRgn(m_hRgn, hRgn, 0, RGN_COPY);
GetRgnBox(m_hRgn, &box);
OffsetRgn(m_hRgn, -box.left, -box.top);
GetRgnBox(m_hRgn, &box);
m_CenterPoint = CPoint(box.left + box.Width() /2 , box.top + box.Height() /2);
box.OffsetRect(point);
return CButton::Create(lpszCaption, dwStyle, box, pParentWnd, nID);
}
BOOL CAdvButton::Create(LPCTSTR lpszCaption, DWORD dwStyle, const CPoint point, const HRGN hRgn, CWnd* pParentWnd, UINT nID, COLORREF color)
{
m_sColor = color;
m_hColor = color;
return Create(lpszCaption, dwStyle, point, hRgn, pParentWnd, nID);
}
BOOL CAdvButton::Create(LPCTSTR lpszCaption, DWORD dwStyle, const CPoint point, const HRGN hRgn, CWnd* pParentWnd, UINT nID, UINT nBorder, LONG lfEscapement, COLORREF nColor, COLORREF sColor, COLORREF hColor, COLORREF dColor)
{
m_lfEscapement = lfEscapement;
return Create(lpszCaption, dwStyle, point, hRgn, pParentWnd, nID, nBorder, nColor, sColor, hColor, dColor);
}
BOOL CAdvButton::Create(LPCTSTR lpszCaption, DWORD dwStyle, const CPoint point, const HRGN hRgn, CWnd* pParentWnd, UINT nID, UINT nBorder, COLORREF nColor, COLORREF sColor, COLORREF hColor, COLORREF dColor)
{
m_nBorder = nBorder;
m_nColor = nColor;
m_sColor = sColor;
m_hColor = hColor;
m_dColor = dColor;
return Create(lpszCaption, dwStyle, point, hRgn, pParentWnd, nID);
}
void CAdvButton::PreSubclassWindow()
{
ModifyStyle(0, BS_OWNERDRAW | BS_PUSHBUTTON);
CButton::PreSubclassWindow();
}
int CAdvButton::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CButton::OnCreate(lpCreateStruct) == -1)
return -1;
m_bNeedBitmaps = true;
SetWindowRgn(m_hRgn, true);
return 0;
}
void CAdvButton::OnLButtonDown(UINT nFlags, CPoint point)
{
m_bMouseDown = true;
if (!m_bCapture) {
SetCapture();
m_bCapture = true;
}
CButton::OnLButtonDown(nFlags, point);
}
void CAdvButton::OnLButtonUp(UINT nFlags, CPoint point)
{
CButton::OnLButtonUp(nFlags, point);
m_bMouseDown = false;
if (m_bCapture) {
ReleaseCapture();
m_bCapture = false;
}
CheckHover(point);
}
void CAdvButton::OnMouseMove(UINT nFlags, CPoint point)
{
if (!m_bMouseDown)
CheckHover(point);
CButton::OnMouseMove(nFlags, point);
}
void CAdvButton::CheckHover(CPoint point)
{
if (HitTest(point)) {
if (!m_bCapture) {
SetCapture();
m_bCapture = true;
}
if (!m_bHover) {
m_bHover = true;
RedrawWindow();
}
}
else {
if (m_bCapture) {
ReleaseCapture();
m_bCapture = false;
}
m_bHover = false;
RedrawWindow();
}
}
LRESULT CAdvButton::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
if (message == WM_LBUTTONDBLCLK)
message = WM_LBUTTONDOWN;
return CButton::DefWindowProc(message, wParam, lParam);
}
BOOL CAdvButton::HitTest(CPoint point)
{
BOOL result = false;
HRGN hRgn = CreateRectRgn(0, 0, 0, 0);
GetWindowRgn(hRgn);
//获取控件的区域
CRect rgnRect;
GetRgnBox(hRgn, &rgnRect);
//获取区域的边界
result = PtInRect(&rgnRect, point) && PtInRegion(hRgn, point.x, point.y);
//通过PtInRect来判断是否位于控件之上
DeleteObject(hRgn);
return result;
}
BOOL CAdvButton::OnEraseBkgnd(CDC* pDC)
{
return 1;
}
void CAdvButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
CDC* pDC = CDC::FromHandle(lpDrawItemStruct -> hDC);
CRect rect;
GetClientRect(rect);
if (m_bNeedBitmaps)
PrepareStateBitmaps(pDC, &rect);
//对于图片按钮,调用PrepareStateBitmaps处理
DrawButton(pDC, &rect, lpDrawItemStruct -> itemState);
//绘制按钮
}
void CAdvButton::PrepareStateBitmaps(CDC * pDC, CRect * pRect)
{
CDC * pMemDC;
pMemDC = new CDC;
pMemDC -> CreateCompatibleDC(pDC);
PrepareNormalState(pDC, pMemDC, pRect);
PrepareSelectedState(pDC, pMemDC, pRect);
PrepareHoverState(pDC, pMemDC, pRect);
PrepareDisabledState(pDC, pMemDC, pRect);
delete pMemDC;
m_bNeedBitmaps = false;
}
void CAdvButton::PrepareNormalState(CDC * pDC, CDC * pMemDC, CRect * pRect)
{
delete m_pNormal;
m_pNormal = new CBitmap;
PaintRgn(pDC, pMemDC, m_pNormal, m_nColor, pRect, true, false);
}
void CAdvButton::PrepareSelectedState(CDC * pDC, CDC * pMemDC, CRect * pRect)
{
delete m_pSelected;
m_pSelected = new CBitmap;
PaintRgn(pDC, pMemDC, m_pSelected, m_sColor, pRect, true, true);
}
void CAdvButton::PrepareHoverState(CDC * pDC, CDC * pMemDC, CRect * pRect)
{
delete m_pHover;
m_pHover = new CBitmap;
PaintRgn(pDC, pMemDC, m_pHover, m_hColor, pRect, true, false);
}
void CAdvButton::PrepareDisabledState(CDC * pDC, CDC * pMemDC, CRect * pRect)
{
delete m_pDisabled;
m_pDisabled = new CBitmap;
PaintRgn(pDC, pMemDC, m_pDisabled, m_dColor, pRect, false, false);
}
void CAdvButton::PaintRgn(CDC * pDC, CDC * pMemDC, CBitmap * pBitmap, COLORREF color, CRect * pRect, BOOL bEnabled, BOOL bSunken)
{
pBitmap -> CreateCompatibleBitmap(pDC, pRect -> Width(), pRect -> Height());
CBitmap * pOldBitmap = pMemDC -> SelectObject(pBitmap);
HRGN hRgn = CreateRectRgn(0, 0, 0, 0);
GetWindowRgn(hRgn);
HBRUSH hBrush = CreateSolidBrush(color);
pMemDC -> FillSolidRect(pRect, RGB(0, 0, 0));
FillRgn(pMemDC -> GetSafeHdc(), hRgn, hBrush);
DeleteObject(hBrush);
DrawButtonCaption(pMemDC -> GetSafeHdc(), pRect, bEnabled, bSunken);
FrameRgn3D(pMemDC -> GetSafeHdc(), hRgn, bSunken);
DeleteObject(hRgn);
pMemDC -> SelectObject(pOldBitmap);
}
void CAdvButton::DrawButtonCaption(HDC hDC, CRect * pRect, BOOL bEnabled, BOOL bSunken)
{
int nOldMode = SetBkMode(hDC, TRANSPARENT);
CString text;
GetWindowText(text);
//获取按钮标题
LOGFONT lf;
GetParent() -> GetFont() -> GetLogFont(&lf);
//获取画笔结构
HFONT hFont = CreateFontIndirect(&lf);
HFONT hOldFont = (HFONT) SelectObject(hDC, hFont);
//选入新的画笔
TEXTMETRIC tm;
GetTextMetrics(hDC, &tm);
CPoint p = CPoint(m_CenterPoint.x, m_CenterPoint.y + tm.tmHeight/ 2);
if (bSunken)
p.Offset(m_nBorder, m_nBorder);
if (bEnabled)
//根据按钮的不同状态,绘制相应的文字外观
{
SetTextColor(hDC, GetSysColor(COLOR_BTNTEXT));
SetTextAlign(hDC, TA_CENTER | TA_BOTTOM);
TextOut(hDC, p.x, p.y, text, text.GetLength());
}
else
{
SetTextColor(hDC, GetSysColor(COLOR_3DHILIGHT));
TextOut(hDC, p.x + 1, p.y + 1, text, text.GetLength());
SetTextColor(hDC, GetSysColor(COLOR_3DSHADOW));
TextOut(hDC, p.x, p.y, text, text.GetLength());
}
SelectObject(hDC, hOldFont);
DeleteObject(hFont);
SetBkMode(hDC, nOldMode);
}
void CAdvButton::FrameRgn3D(HDC hDC, const HRGN hRgn, BOOL bSu