学步园

特性：

1. 用户可动态指定n*n格子

2. 支持bmp图片

3. 需要父窗口支持

以下是头文件：

#pragma once</p> <p>// CPicGrid</p> <p>class CPicGrid : public CWnd<br /> {<br /> DECLARE_DYNAMIC(CPicGrid)</p> <p>public:<br /> CPicGrid(CWnd* pParent, int n, int iSpace);<br /> virtual ~CPicGrid();</p> <p> int GetGridNum() const { return m_n*m_n; }<br /> int GetGridDim() const { return m_n; }<br /> int GetGridWidth() const { return m_iWidth; }<br /> int GetGridHeight() const { return m_iHeight; }<br /> int GetGridSpace() const { return m_iSpace; }</p> <p> CStatic* operator[](int i);<br /> CStatic* GetGrid(int i, int j);<br /> BOOL SetImgToGrid(int i, const TCHAR* szPath);<br /> BOOL SetImgToGrid(int i, int j, const TCHAR* szPath);</p> <p>protected:<br /> DECLARE_MESSAGE_MAP()</p> <p>private:<br /> CPicGrid();</p> <p> CStatic** p;<br /> int m_n;<br /> int m_iWidth;<br /> int m_iHeight;<br /> int m_iSpace;<br /> };</p> <p>

以下是实现文件：

#include "CPicGrid.h"</p> <p>// CPicGrid</p> <p>IMPLEMENT_DYNAMIC(CPicGrid, CWnd)</p> <p>CPicGrid::CPicGrid() : CWnd()<br /> {</p> <p>}</p> <p>CPicGrid::CPicGrid(CWnd* pParent, int n, int iSpace) : CWnd()<br /> {<br /> CRect rect;<br /> pParent->GetClientRect(&rect);<br /> this->Create(0, 0, WS_CHILD | WS_VISIBLE, rect, pParent, 0x1234);<br /> this->ShowWindow(SW_SHOW);</p> <p> m_iWidth = (rect.Width()-iSpace*(n-1))/n;<br /> m_iHeight = (rect.Height()-iSpace*(n-1))/n;<br /> m_iSpace = iSpace;<br /> m_n = n;<br /> int index = 0;<br /> CRect grid;<br /> grid.left = 0;<br /> grid.top = 0;<br /> grid.bottom = m_iHeight;<br /> grid.right = m_iWidth;</p> <p> p = new CStatic*[n*n];<br /> for(int i=0; i<n*n; ++i)<br /> {<br /> p[i] = new CStatic;<br /> p[i]->Create(0, WS_CHILD | SS_BITMAP | WS_BORDER | WS_VISIBLE, grid, this);</p> <p> p[i]->ShowWindow(SW_SHOW);<br /> grid.left += (m_iWidth + m_iSpace);<br /> grid.right += (m_iWidth + m_iSpace);<br /> if((i+1)%n == 0)<br /> {<br /> grid.top += (m_iHeight + m_iSpace);<br /> grid.bottom += (m_iHeight + m_iSpace);<br /> grid.left = 0;<br /> grid.right = m_iWidth;<br /> }<br /> }<br /> }</p> <p>CPicGrid::~CPicGrid()<br /> {<br /> for(int i=0; i<9; ++i)<br /> {<br /> if(p[i]) delete p[i];<br /> }<br /> }</p> <p>BEGIN_MESSAGE_MAP(CPicGrid, CWnd)<br /> END_MESSAGE_MAP()</p> <p>CStatic* CPicGrid::operator[](int i)<br /> {<br /> if(i < m_n*m_n)<br /> {<br /> return p[i];<br /> }<br /> else<br /> return NULL;<br /> }</p> <p>CStatic* CPicGrid::GetGrid(int i, int j)<br /> {<br /> if(i>=0 && i<m_n && j>=0 && j<m_n)<br /> {<br /> return p[i*m_n + j];<br /> }<br /> else<br /> return NULL;<br /> }</p> <p>BOOL CPicGrid::SetImgToGrid(int i, const TCHAR* szPath)<br /> {<br /> if(i<0 || i>m_n*m_n) return FALSE;<br /> CRect grid;<br /> p[i]->GetClientRect(&grid);<br /> HBITMAP hbt = (HBITMAP)::LoadImage(NULL, szPath, IMAGE_BITMAP, grid.Width(), grid.Height(), LR_LOADFROMFILE);<br /> if(hbt)<br /> {<br /> p[i]->SetBitmap(hbt);<br /> return TRUE;<br /> }<br /> return FALSE;<br /> }</p> <p>BOOL CPicGrid::SetImgToGrid(int i, int j, const TCHAR* szPath)<br /> {<br /> if(i>=0 && i<m_n && j>=0 && j<m_n)<br /> {<br /> CRect grid;<br /> p[i*m_n + j]->GetClientRect(&grid);<br /> HBITMAP hbt = (HBITMAP)::LoadImage(NULL, szPath, IMAGE_BITMAP, grid.Width(), grid.Height(), LR_LOADFROMFILE);<br /> if(hbt)<br /> {<br /> p[i*m_n + j]->SetBitmap(hbt);<br /> return TRUE;<br /> }<br /> }<br /> return FALSE;<br /> }

应用示例：

CPicGrid* p;</p> <p>// 。。。</p> <p>// IDC_TTT是一个CStatic控件<br /> CWnd* pParent = GetDlgItem(IDC_TTT);<br /> p = new CPicGrid(pParent, 2, 10);