// gdiplus_testDlg.cpp : 实现文件
//
#include "stdafx.h"
#include "gdiplus_test.h"
#include "gdiplus_testDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
using namespace Gdiplus;
// 用于应用程序“关于”菜单项的 CAboutDlg 对话框
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// 对话框数据
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV 支持
// 实现
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// Cgdiplus_testDlg 对话框
Cgdiplus_testDlg::Cgdiplus_testDlg(CWnd* pParent /*=NULL*/)
: CDialog(Cgdiplus_testDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
m_pImage = NULL;
m_pData = NULL;
m_nWidth = 0;
m_nHeight = 0;
m_pBuf1 = 0;
m_pBuf2 = 0;
m_ptDrop.x = -1;
m_ptDrop.y = -1;
}
void Cgdiplus_testDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(Cgdiplus_testDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_WM_TIMER()
ON_WM_LBUTTONUP()
END_MESSAGE_MAP()
// Cgdiplus_testDlg 消息处理程序
BOOL Cgdiplus_testDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// 将“关于...”菜单项添加到系统菜单中。
// IDM_ABOUTBOX 必须在系统命令范围内。
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// 设置此对话框的图标。当应用程序主窗口不是对话框时,框架将自动
// 执行此操作
SetIcon(m_hIcon, TRUE); // 设置大图标
SetIcon(m_hIcon, FALSE); // 设置小图标
// TODO: 在此添加额外的初始化代码
m_pImage = Bitmap::FromFile(L"f:\\code\\test\\gdiplus_test\\gdiplus_test\\test.bmp");
ATLASSERT(m_pImage);
m_nWidth = m_pImage->GetWidth();
m_nHeight = m_pImage->GetHeight();
m_rcImage = CRect(0, 0, m_pImage->GetWidth(), m_pImage->GetHeight());
m_pData = new DWORD[m_nWidth * m_nHeight];
ATLASSERT(m_pData);
memset(m_pData, 0, m_nWidth * m_nHeight * sizeof(DWORD));
Color clr;
for (int i = 0; i < m_nHeight; i++) {
for (int j = 0; j < m_nWidth; j++) {
m_pImage->GetPixel(i, j, &clr);
m_pData[i*m_nWidth + j] = clr.GetValue();
}
}
m_pBuf1 = new short[m_nWidth * m_nHeight];
ATLASSERT(m_pBuf1);
memset(m_pBuf1, 0, m_nWidth * m_nHeight * sizeof(short));
m_pBuf2 = new short[m_nWidth * m_nHeight];
ATLASSERT(m_pBuf2);
memset(m_pBuf2, 0, m_nWidth * m_nHeight * sizeof(short));
SetTimer(1, 50, NULL);
return TRUE; // 除非将焦点设置到控件,否则返回 TRUE
}
void Cgdiplus_testDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// 如果向对话框添加最小化按钮,则需要下面的代码
// 来绘制该图标。对于使用文档/视图模型的 MFC 应用程序,
// 这将由框架自动完成。
void Cgdiplus_testDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// 使图标在工作矩形中居中
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
CDC* dc = GetDC();
Graphics graphics( dc->m_hDC );
//
// GraphicsPath path; // 构造一个路径
// path.AddEllipse(50, 50, 100, 200);
//
// // 使用路径构造一个画刷
// PathGradientBrush pthGrBrush(&path);
//
// // 将路径中心颜色设为蓝色
// pthGrBrush.SetCenterColor(Color(255, 0, 0, 255));
//
// // 设置路径周围的颜色为蓝芭,但alpha值为0
// Color colors[] = {Color(0, 0, 0, 255)};
// INT count = 1;
// pthGrBrush.SetSurroundColors(colors, &count);
//
// graphics.FillRectangle(&pthGrBrush, 50, 50, 100, 200);
//
// LinearGradientBrush linGrBrush(
// Point(300, 50),
// Point(500, 150),
// Color(255, 255, 0, 0), // 红色
// Color(255, 0, 0, 255)); // 蓝色
//
// graphics.FillRectangle(&linGrBrush, 0, 0, 300, 150);
RenderRipple();
RippleSpread();
int nWidth = m_pImage->GetWidth();
int nHeight = m_pImage->GetHeight();
RectF destRect(0, 0, nWidth, nHeight);
graphics.DrawImage(m_pImage, destRect, 0, 0, nWidth, nHeight, UnitPixel);
}
//当用户拖动最小化窗口时系统调用此函数取得光标显示。
//
HCURSOR Cgdiplus_testDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
void Cgdiplus_testDlg::OnTimer(UINT_PTR nIDEvent)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
switch (nIDEvent)
{
case 1:
{
OnPaint();
}
break;
}
CDialog::OnTimer(nIDEvent);
}
void Cgdiplus_testDlg::OnLButtonUp(UINT nFlags, CPoint point)
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
CDialog::OnLButtonUp(nFlags, point);
if (!m_rcImage.PtInRect(point)) {
return;
}
// UINT* pData = new UINT[m_pImage->GetWidth() * m_pImage->GetHeight()];
// ATLASSERT(pData);
// memset(pData, 0, m_pImage->GetWidth() * m_pImage->GetHeight());
//
// UINT uSize = 0;
// Status ret = m_pImage->GetPropertySize(&uSize, pData);
// Status ret;
// for (int i = 20; i < 50; i++) {
// for (int j = 20; j < 50; j++) {
// ret = m_pImage->SetPixel(i, j, Color(0, 0, 0));
// }
// }
// for (int i = 0; i < m_nHeight; i++) {
// for (int j = 0; j < m_nWidth; j++) {
// int index = i*m_nWidth + j;
// m_pImage->SetPixel(i, j, Color(m_pData[index]));
// }
// }
m_ptDrop = point;
DropStone(m_ptDrop.x, m_ptDrop.y, 5, 20);
}
//*****************************************************
//增加波源
//*****************************************************
void Cgdiplus_testDlg::DropStone(int x,//x坐标
int y,//y坐标
int stonesize,//波源半径
int stoneweight)//波源能量
{
//判断坐标是否在屏幕范围内
if ((x+stonesize)>m_nWidth ||
(y+stonesize)>m_nHeight||
(x-stonesize)<0||
(y-stonesize)<0)
return;
//Color clr;
for (int posx=x-stonesize; posx<x+stonesize; posx++)
for (int posy=y-stonesize; posy<y+stonesize; posy++)
if ((posx-x)*(posx-x) + (posy-y)*(posy-y) < stonesize*stonesize)
{
// DWORD value = 0;
// m_pImage->GetPixel(posx, posy, &clr);
// value = clr.GetValue();
// clr
m_pBuf1[m_nWidth*posy+posx] = -stoneweight;
}
}
//*******************************************************
//根据波能数据缓冲区对离屏页面进行渲染
//*******************************************************
void Cgdiplus_testDlg::RenderRipple()
{
//锁定两个离屏页面
// DDSURFACEDESC ddsd1, ddsd2;
// ddsd1.dwSize = sizeof (DDSURFACEDESC);
// ddsd2.dwSize = sizeof(DDSURFACEDESC);
// lpDDSPic1->Lock(NULL, &ddsd1, DDLOCK_WAIT, NULL);
// lpDDSPic2->Lock(NULL, &ddsd2, DDLOCK_WAIT, NULL);
//
// //取得页面象素位深度,和页面内存指针
// int depth=ddsd1.ddpfPixelFormat.dwRGBBitCount/8;
// BYTE *Bitmap1 = (BYTE*)ddsd1.lpSurface;
// BYTE *Bitmap2 = (BYTE*)ddsd2.lpSurface;
//下面进行页面渲染
int xoff, yoff;
int k = m_nWidth;
for (int i=1; i<m_nHeight-1; i++)
{
for (int j=0; j<m_nWidth; j++)
{
//计算偏移量
xoff = m_pBuf1[k-1]-m_pBuf1[k+1];
yoff = m_pBuf1[k-m_nWidth]-m_pBuf1[k+m_nWidth];
//判断坐标是否在窗口范围内
if ((i+yoff )< 0 ) {k++; continue;}
if ((i+yoff )> m_nHeight) {k++; continue;}
if ((j+xoff )< 0 ) {k++
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