搞了一天终于弄了个完整的编辑框控件出来了，
哎，，，搞界面开发还是有点复杂的。
1 #pragma once
2
3 #include "AdvEdit.h"
4 // CBkgEditBox
5
6 class CBkgEditBox : public CEdit
7 {
8 DECLARE_DYNAMIC(CBkgEditBox)
9
10 public:
11 CBkgEditBox();
12 virtual ~CBkgEditBox();
13
14 protected:
15 DECLARE_MESSAGE_MAP()
16 public:
17 afx_msg BOOL OnEraseBkgnd(CDC* pDC);
18 afx_msg void OnSetFocus(CWnd* pOldWnd);
19 afx_msg void OnMouseHover(UINT nFlags, CPoint point);
20 afx_msg void OnMouseLeave();
21 afx_msg void OnMouseMove(UINT nFlags, CPoint point);
22 afx_msg HBRUSH OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor);
23 afx_msg HBRUSH CtlColor(CDC* pDC, UINT nCtlColor);
24 afx_msg void OnChar(UINT nChar, UINT nRepCnt, UINT nFlags);
25 afx_msg void OnKillFocus(CWnd* pNewWnd);
26
27 private:
28 BOOL m_bFirstDraw; // 第一次绘制背景标识
29 Gdiplus::Image *m_pPngBg; // 背景位图资源
30 BOOL m_bHover; // 鼠标是否在编辑框上标识
31 BOOL m_bAllowMouseTrack; // 鼠标移动时是否允许追踪鼠标移动
32 COLORREF m_clrBkgnd; // 默认背景Hover颜色
33 COLORREF m_clrHoverBkgnd; // 默认背景UnHover颜色
34 COLORREF m_clrText; // 字体颜色
35 CString m_strTipStr; // 输入提示信息
36 CBrush m_brhNull; // 空画刷对象
37 CFont* m_pTextFont; // 编辑框字体
38
39 public:
40 BOOL SetBackgndRes( UINT nResourceID, LPCTSTR lpszType=_T("PNG"));
41 void SetGrayTipString(LPCTSTR lpszTipString);
42 void SetTextColor(COLORREF clrText);
43 BOOL SetTextFont(int nHeight = 18, int nWidth = 10, LPCTSTR lpszFaceName = _T("宋体"));
44 BOOL IsEditEmpty();
45 };
1 // MyEditBox.cpp : 实现文件
2 //
3
4 #include "stdafx.h"
6 #include "BkgEditBox.h"
7
8
9 // CBkgEditBox
10
11 IMPLEMENT_DYNAMIC(CBkgEditBox, CEdit)
12
13 CBkgEditBox::CBkgEditBox()
14 {
15 m_bFirstDraw = TRUE;
16 m_pPngBg = NULL;
17 m_bHover = FALSE;
18 m_bAllowMouseTrack = TRUE;
19
20 m_clrBkgnd = RGB(255,255,255);
21 m_clrHoverBkgnd = RGB(255,255,255);
22 m_clrText = RGB(0,0,0);
23 m_strTipStr = _T("");
24
25 m_brhNull.CreateStockObject(NULL_BRUSH);
26 m_pTextFont = NULL;
27 }
28
29 CBkgEditBox::~CBkgEditBox()
30 {
31 if (NULL != m_pTextFont)
32 {
33 delete m_pTextFont;
34 m_pTextFont = NULL;
35 }
36 }
37
38
39 BEGIN_MESSAGE_MAP(CBkgEditBox, CEdit)
40 ON_WM_ERASEBKGND()
41 ON_WM_SETFOCUS()
42 ON_WM_MOUSEHOVER()
43 ON_WM_MOUSELEAVE()
44 ON_WM_MOUSEMOVE()
45 ON_WM_CTLCOLOR()
46 ON_WM_CTLCOLOR_REFLECT()
47 ON_WM_CHAR()
48 ON_WM_KILLFOCUS()
49 END_MESSAGE_MAP()
50
51
52
53 // CBkgEditBox 消息处理程序
54
55
56
57
58 BOOL CBkgEditBox::OnEraseBkgnd(CDC* pDC)
59 {
60 // 图片背景与编辑框的距离顶点
61 int nLeftStep,nTopStep,nWidthStep,nHeightStep;
62 nLeftStep = 1;
63 nTopStep = 5;
64 nWidthStep = 2;
65 nHeightStep = 8;
66 CDC* pOldDC = pDC;
67 if (NULL != m_pPngBg)
68 {
69 pDC = GetParent()->GetDC();
70 CRect rect;
71 GetWindowRect(&rect);
72 this->GetParent()->ScreenToClient(&rect);
73
74 int nWidth = m_pPngBg->GetWidth();
75 int nHeight = m_pPngBg->GetHeight();
76
77 // 不是第一次绘制时需要调整位置
78 if (!m_bFirstDraw)
79 {
80 rect.left -= nLeftStep;
81 rect.top -= nTopStep;
82 }else
83 {
84 MoveWindow(rect.left + nLeftStep, rect.top + nTopStep,
85 nWidth - nWidthStep, nHeight - nHeightStep);
86 }
87
88
89 CDC MemDc;
90 MemDc.CreateCompatibleDC(pDC);
91
92 CBitmap bitMemMap;
93 bitMemMap.CreateCompatibleBitmap(pDC, nWidth, nHeight);
94 MemDc.SelectObject(&bitMemMap);
95
96 Gdiplus::Graphics graphics(MemDc.m_hDC);
97 graphics.DrawImage(m_pPngBg, 0, 0, nWidth, nHeight);
98 pDC->BitBlt(rect.left, rect.top, nWidth,nHeight, &MemDc, 0, 0,SRCCOPY);
99
100 bitMemMap.DeleteObject();
101 MemDc.DeleteDC();
102 m_bFirstDraw = FALSE;
103
104 pDC = pOldDC;
105 }
106
107
108
109 {
110
111 // 内阴影
112 CBrush brhInnerShadow;
113 if (!m_bHover)
114 {
115 brhInnerShadow.CreateSolidBrush(m_clrBkgnd);
116 }else
117 {
118 brhInnerShadow.CreateSolidBrush(m_clrHoverBkgnd);
119 }
120
121
122 CBrush* pOldBrh = pDC->SelectObject(&brhInnerShadow);
123 pDC->SelectStockObject(NULL_PEN);
124 CRect rcShadow;
125 GetClientRect(&rcShadow);
126 if (NULL != m_pPngBg)
127 {
128 rcShadow.right = rcShadow.left + m_pPngBg->GetWidth() - nWidthStep;
129 rcShadow.bottom = rcShadow.top + m_pPngBg->GetHeight() - nHeightStep;
130 }
131 pDC->Rectangle(&rcShadow);
132 if(NULL!=pOldBrh)
133 {
134 pDC->SelectObject(pOldBrh);
135 }
136 brhInnerShadow.DeleteObject();
137 this->UpdateWindow();
138
139 }
140
141 return CEdit::OnEraseBkgnd(pDC);
142 }
143
144 BOOL CBkgEditBox::SetBackgndRes( UINT nResourceID, LPCTSTR lpszType/*=_T("PNG")*/ )
145 {
146 return G_ImageFromIDResource(nResourceID, lpszType, m_pPngBg);
147 }
148
149
150 void CBkgEditBox::OnMouseHover(UINT nFlags, CPoint point)
151 {
152 m_bHover = TRUE;
153 Invalidate();
154
155 CEdit::OnMouseHover(nFlags, point);
156 }
157
158
159 void CBkgEditBox::OnMouseLeave()
160 {
161 // Hover结束
162 m_bHover = FALSE;
163 // 重绘背景
164 Invalidate();
165
166 // 鼠标离开，继续追踪HOVER消息
167 m_bAllowMouseTrack = TRUE;
168
169 //CWnd* pWnd =this->GetParent();
170
171 //CRect rcTmp;
172 //GetClientRect(rcTmp);
173 //rcTmp.OffsetRect(3, 3);
174 ////InvalidateRect(rcTmp);
175 //this->ClientToScreen(&rcTmp);
176 //pWnd->ScreenToClient(&rcTmp);
177 //pWnd->InvalidateRect(&rcTmp);
178 //pWnd->UpdateWindow();
179
180
181
182 CEdit::OnMouseLeave();
183 }
184
185
186 void CBkgEditBox::OnMouseMove(UINT nFlags, CPoint point)
187 {
188 // 默认情况下，窗口是不响应 WM_MOUSELEAVE 和 WM_MOUSEHOVER 消息的，
189 // 所以要使用 _TrackMouseEvent 函数来激活这两个消息
190 // https://msdn.microsoft.com/en-us/library/ms645604
191
192 if (m_bAllowMouseTrack)
193 {
194 TRACKMOUSEEVENT tme;
195 tme.cbSize = sizeof(TRACKMOUSEEVENT);
196 tme.dwFlags = TME_HOVER|TME_LEAVE;
197 tme.hwndTrack = m_hWnd;
198 tme.dwHoverTime = 10; // 超过10ms才会认为HOVER
199
200 _TrackMouseEvent(&tme);
201 m_bAllowMouseTrack = FALSE;
202 }
203
204 CEdit::OnMouseMove(nFlags, point);
205 }
206
207 BOOL CBkgEditBox::IsEditEmpty()
208 {
209 CString strText;
210 GetWindowText(strText);
211 if (strText.IsEmpty())
212 {
213 return TRUE;
214 }
215 if (strText == m_strTipStr)
216 {
217 return TRUE;
218 }
219 return FALSE;
220 }
221
222
223 HBRUSH CBkgEditBox::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
224 {
225 HBRUSH hbr = CEdit::OnCtlColor(pDC, pWnd, nCtlColor);
226
227 // TODO: 在此更改 DC 的任何特性
228
229 // TODO: 如果默认的不是所需画笔，则返回另一个画笔
230
231 return hbr;
232 }
233
234 HBRUSH CBkgEditBox::CtlColor( CDC* pDC, UINT nCtlColor )
235 {
236 // 设置透明背景
237 pDC->SetBkMode(TRANSPARENT);
238
239 CString sText;
240 GetWindowText(sText);
241 if (sText == m_strTipStr)
242 {
243 pDC->SetTextColor(RGB(150,150,150));
244 }else
245 {
246 pDC->SetTextColor(m_clrText);
247 }
248
249 return m_brhNull;
250 }
251
252
253 void CBkgEditBox::OnChar(UINT nChar, UINT nRepCnt, UINT nFlags)
254 {
255 Invalidate(TRUE);
256
257 CEdit::OnChar(nChar, nRepCnt, nFlags);
258 }
259
260
261 void CBkgEditBox::OnSetFocus(CWnd* pOldWnd)
262 {
263 CEdit::OnSetFocus(pOldWnd);
264
265 CString sText;
266 GetWindowText(sText);
267 if (sText == m_strTipStr)
268 {
269 SetWindowText(_T(""));
270 }
271 Invalidate(TRUE);
272 return ;
273
274 }
275 void CBkgEditBox::OnKillFocus(CWnd* pNewWnd)
276 {
277 CEdit::OnKillFocus(pNewWnd);
278
279 CString sText;
280 GetWindowText(sText);
281 if (_T("") == sText)
282 {
283 SetWindowText(m_strTipStr);
284 }
285 }
286
287 void CBkgEditBox::SetGrayTipString( LPCTSTR lpszTipString )
288 {
289 m_strTipStr = lpszTipString;
290
291 SetWindowText(lpszTipString);
292 }
293
294 void CBkgEditBox::SetTextColor( COLORREF clrText )
295 {
296 m_clrText = m_clrText;
297 }
298
299 // https://msdn.microsoft.com/zh-tw/library/vstudio/2ek64h34.aspx
300 BOOL CBkgEditBox::SetTextFont( int nHeight /*= 20*/, int nWidth /*= 12*/, LPCTSTR lpszFaceName /*= _T("宋体")*/ )
301 {
302 if (NULL != m_pTextFont)
303 {
304 delete m_pTextFont;
305 m_pTextFont = NULL;
306 }
307 m_pTextFont = new CFont;
308 m_pTextFont->CreateFont(
309 nHeight, // nHeight
310 nWidth, // nWidth
311 0, // nEscapement
312 0, // nOrientation
313 FW_NORMAL, // nWeight
314 FALSE, // bItalic
315 FALSE, // bUnderline
316 0, // cStrikeOut
317 ANSI_CHARSET, // nCharSet
318 OUT_DEFAULT_PRECIS, // nOutPrecision
319 CLIP_DEFAULT_PRECIS, // nClipPrecision
320 DEFAULT_QUALITY, // nQuality
321 DEFAULT_PITCH | FF_SWISS, // nPitchAndFamily
322 lpszFaceName);
323
324 this->SetFont(m_pTextFont);
325 return TRUE;
326 }
时间： 2024-10-17 01:28:55