效果演示
当前程序基于CStatic派生了一个CReditStatic类,用于实现滚动文本。
通常程序都有一个关于对话框,如果将对话框内容设计成滚动效果,
美化程序的同时,也可以将过多的内容以滚动形式展示给用户阅读。
下面是程序效果图:
上位机MFC滚动文本实例
实现过程:
1.同样也是建立一个测试工程,这里是对话框工程。
在对话框上添加一静态文本控件,ID设置为IDC_STATIC1,用于显示滚动文本内容。
2.将例程根目录两文件CREDITSTATIC.CPP,CREDITSTATIC.H复制到自己工程。
再导入到工程,这样工程会多出一集成类CCreditStatic。
3.下面就是对这个类的使用。在 主对话框类中包含类头文件,添加类实例,并初始化
#include "CreditStatic.h"
private:
CCreditStatic m_static;
UINT m_bitmapIDs[2];
m_bitmapIDs[0] = IDB_BITMAP1;
m_bitmapIDs[1] = IDB_BITMAP2;
m_static.SubclassDlgItem(IDC_STATIC1,this);
m_static.SetCredits(pText);
m_static.SetSpeed(DISPLAY_FAST);
m_static.SetColor(BACKGROUND_COLOR, RGB(0,0,255));
m_static.SetTransparent();
m_static.SetGradient(GRADIENT_RIGHT_DARK);
m_static.SetBkImage(IDB_BITMAP1);
m_static.StartScrolling();
SetTimer(1,5000,NULL);
这里添加了一个定时器,用于间隔显示静态文本控件的不同背景
void CCTestDlg::OnTimer(UINT nIDEvent)
{
static int index = 0;
index = ++index % 2;
m_static.SetBkImage(m_bitmapIDs[index]);
CDialog::OnTimer(nIDEvent);
}
其中pText为要显示的文本内容,如例程的:
- char *pText = { "|NETBAS FOR WINDOWS NT\t||Copyright (c) 1998|"
- "Test Data AS|All Rights Reserved||"
- "BITMAP1^||" // this is a quoted bitmap resource
- "Project Lead\r||Kjetil Kvamme|||"
- "Technical Lead\r||Paul K. Tonder|||"
- "Engineering Lead\r||Paul K. Tonder|||"
- "Product Lead\r||Tom Rotting|||"
- "Engineering\r||Paul K. Tonder, Rolf T. Wold, Sigbjorn Helset|"
- "Reidar Ognedal, Kjetil Kvamme, Arne Bakken|||"
- "BITMAP2^|||" // this is a quoted bitmap resource
- "QA\r||Mary Hech, Sam Bamnm, Ron Fonn, Steve Waeve|"
- "Igor Borisnoff, FellaB |||"
- "Documentation\r||"
- "Arvid Molnvik, Joanne Hone, Annette Fune|||"
- "Technical Program Office\r||Burf Murphy, Foll Roller||||"
- "Systems Support\r||Bendy Land|||"
- "Administrative Support\r||Donna Fonna|||"
- "* * * * * * * * *\t|||"
- "BITMAP3^||"
- "Project Manager\r||Dwain Kinghorn|||"
- "Engineering\r||"
- "Hank Bank, Ray Fay, Bill Sill, Mark Dark, Peter Leter|"
- "Lev Bef|||Quality Assurance\r||"
- "Biff Bin||||"
- "BITMAP4^|||||"
- };
复制代码 例程中使用的位图资源如IDB_BITMAP1,可以自己添加,也可使用例程的,注意资源ID保持一致便可。
4.最后就是编译运行例程,查看效果
下面是文件源代码,可以复制使用,也可以下载例程工程使用:
- #if !defined(AFX_CREDITSTATIC_H__4ABD7701_49F5_11D1_9E3C_00A0245800CF__INCLUDED_)
- #define AFX_CREDITSTATIC_H__4ABD7701_49F5_11D1_9E3C_00A0245800CF__INCLUDED_
- #if _MSC_VER >= 1000
- #pragma once
- #endif // _MSC_VER >= 1000
- // CreditStatic.h : header file
- //
- #define DISPLAY_SLOW 0
- #define DISPLAY_MEDIUM 1
- #define DISPLAY_FAST 2
- #define BACKGROUND_COLOR 0
- #define TOP_LEVEL_TITLE_COLOR 1
- #define TOP_LEVEL_GROUP_COLOR 2
- #define GROUP_TITLE_COLOR 3
- #define NORMAL_TEXT_COLOR 4
- #define TOP_LEVEL_TITLE_HEIGHT 0
- #define TOP_LEVEL_GROUP_HEIGHT 1
- #define GROUP_TITLE_HEIGHT 2
- #define NORMAL_TEXT_HEIGHT 3
- #define TOP_LEVEL_TITLE 0 // '\t'
- #define TOP_LEVEL_GROUP 1 // '\n'
- #define GROUP_TITLE 2 // '\r'
- #define DISPLAY_BITMAP 3 // '^'
- #define GRADIENT_NONE 0
- #define GRADIENT_RIGHT_DARK 1
- #define GRADIENT_RIGHT_LIGHT 2
- #define GRADIENT_LEFT_DARK 3
- #define GRADIENT_LEFT_LIGHT 4
- class CCreditStatic : public CStatic
- {
- protected:
- COLORREF m_Colors[5];
- int m_TextHeights[4];
- TCHAR m_Escapes[4];
- int m_DisplaySpeed[3],m_CurrentSpeed;
- // CRect m_ScrollRect; // rect of Static Text frame
- CStringList m_ArrCredit;
- CString m_szWork;
- int m_nCounter; // work ints
- POSITION m_ArrIndex;
- BOOL m_bFirstTime;
- BOOL m_bDrawText;
- int m_nClip,m_ScrollAmount;
- int m_nCurrentFontHeight;
- CBitmap m_bmpWork; // bitmap holder
- CBitmap m_BmpMain; // bitmap holder
- CSize m_size; // drawing helpers
- CPoint m_pt;
- BOOL m_bProcessingBitmap;
- CPalette m_pal;
- CBitmap m_bitmap;
- int m_cxBitmap, m_cyBitmap;
- BOOL m_bFirstTurn;
- UINT m_Gradient;
- BOOL m_bTransparent;
- int n_MaxWidth;
- UINT TimerOn;
- // Construction
- public:
- CCreditStatic();
- // Attributes
- public:
- // Operations
- public:
- BOOL StartScrolling();
- void EndScrolling();
- void SetCredits(LPCTSTR credits, char delimiter = '|');
- void SetCredits(UINT nID, char delimiter = '|');
- void SetSpeed(UINT index, int speed = 0);
- void SetColor(UINT index, COLORREF col);
- void SetTextHeight(UINT index, int height);
- void SetEscape(UINT index, char escape);
- void SetGradient(UINT value = GRADIENT_RIGHT_DARK);
- BOOL SetBkImage(UINT nIDResource);
- BOOL SetBkImage(LPCTSTR lpszResourceName);
- void SetTransparent(BOOL bTransparent = TRUE);
- // Overrides
- // ClassWizard generated virtual function overrides
- //{{AFX_VIRTUAL(CCreditStatic)
- //}}AFX_VIRTUAL
- // Implementation
- public:
- virtual ~CCreditStatic();
- // Generated message map functions
- protected:
- void MoveCredit(CDC *pDC, CRect& r, CRect& r2, BOOL bCheck);
- void AddBackGround(CDC* pDC, CRect& m_ScrollRect, CRect& m_ClientRect);
- void DrawCredit(CDC* pDC, CRect& m_ScrollRect);
- void FillGradient(CDC *pDC, CRect *m_ScrollRect, CRect *m_FillRect, COLORREF color);
- void DrawBitmap(CDC* pDC, CDC* pDC2, CRect *rBitmap);
- //{{AFX_MSG(CCreditStatic)
- afx_msg void OnPaint();
- afx_msg BOOL OnEraseBkgnd(CDC* pDC);
- afx_msg void OnTimer(UINT nIDEvent);
- afx_msg void OnDestroy();
- //}}AFX_MSG
- DECLARE_MESSAGE_MAP()
- };
- /////////////////////////////////////////////////////////////////////////////
- //{{AFX_INSERT_LOCATION}}
- // Microsoft Developer Studio will insert additional declarations immediately before the previous line.
- #endif // !defined(AFX_CREDITSTATIC_H__4ABD7701_49F5_11D1_9E3C_00A0245800CF__INCLUDED_)
复制代码- #include "stdafx.h"
- #include "CreditStatic.h"
- #ifdef _DEBUG
- #define new DEBUG_NEW
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
- #define DISPLAY_TIMER_ID 150 // timer id
- /////////////////////////////////////////////////////////////////////////////
- // CCreditStatic
- CCreditStatic::CCreditStatic()
- {
- m_Colors[0] = RGB(0,0,0); // Black
- m_Colors[1] = RGB(255,0,0); // Red
- m_Colors[2] = RGB(255,255,0); // Yellow
- m_Colors[3] = RGB(0,255,255); // Turquoise
- m_Colors[4] = RGB(255,255,255); // White
- m_TextHeights[0] = 21;
- m_TextHeights[1] = 19;
- m_TextHeights[2] = 17;
- m_TextHeights[3] = 15;
- m_nCurrentFontHeight = m_TextHeights[NORMAL_TEXT_HEIGHT];
- m_Escapes[0] = '\t';
- m_Escapes[1] = '\n';
- m_Escapes[2] = '\r';
- m_Escapes[3] = '^';
- m_DisplaySpeed[0] = 70;
- m_DisplaySpeed[1] = 40;
- m_DisplaySpeed[2] = 10;
- m_CurrentSpeed = 1;
- m_ScrollAmount = -1;
- m_bProcessingBitmap = FALSE;
- m_ArrIndex = NULL;
- m_nCounter = 1;
- m_nClip = 0;
- m_bFirstTime = TRUE;
- m_bDrawText = FALSE;
- m_bFirstTurn = TRUE;
- m_Gradient = GRADIENT_NONE;
- m_bTransparent = FALSE;
- n_MaxWidth = 0;
- TimerOn = 0;
- }
- CCreditStatic::~CCreditStatic()
- {
- }
- BEGIN_MESSAGE_MAP(CCreditStatic, CStatic)
- //{{AFX_MSG_MAP(CCreditStatic)
- ON_WM_PAINT()
- ON_WM_ERASEBKGND()
- ON_WM_TIMER()
- ON_WM_DESTROY()
- //}}AFX_MSG_MAP
- END_MESSAGE_MAP()
- /////////////////////////////////////////////////////////////////////////////
- // CCreditStatic message handlers
- BOOL CCreditStatic::StartScrolling()
- {
- if(m_ArrCredit.IsEmpty())
- return FALSE;
- if(m_BmpMain.m_hObject != NULL) {
- m_BmpMain.DeleteObject();
- m_BmpMain.m_hObject = NULL;
- }
-
- TimerOn = SetTimer(DISPLAY_TIMER_ID,m_DisplaySpeed[m_CurrentSpeed],NULL);
- ASSERT(TimerOn != 0);
- m_ArrIndex = m_ArrCredit.GetHeadPosition();
- m_nCounter = 1;
- m_nClip = 0;
- m_bFirstTime = TRUE;
- m_bDrawText = FALSE;
- return TRUE;
- }
- void CCreditStatic::EndScrolling()
- {
- KillTimer(DISPLAY_TIMER_ID);
- TimerOn = 0;
- if(m_BmpMain.m_hObject != NULL) {
- m_BmpMain.DeleteObject();
- m_BmpMain.m_hObject = NULL;
- }
- }
- void CCreditStatic::SetCredits(LPCTSTR credits,char delimiter)
- {
- char *str,*ptr1,*ptr2;
-
- ASSERT(credits);
- if((str = strdup(credits)) == NULL)
- return;
- m_ArrCredit.RemoveAll();
- ptr1 = str;
- while((ptr2 = strchr(ptr1,delimiter)) != NULL) {
- *ptr2 = '\0';
- m_ArrCredit.AddTail(ptr1);
- ptr1 = ptr2+1;
- }
- m_ArrCredit.AddTail(ptr1);
- free(str);
- m_ArrIndex = m_ArrCredit.GetHeadPosition();
- m_nCounter = 1;
- m_nClip = 0;
- m_bFirstTime = TRUE;
- m_bDrawText = FALSE;
- }
- void CCreditStatic::SetCredits(UINT nID,char delimiter)
- {
- CString credits;
- if(!credits.LoadString(nID))
- return;
- SetCredits((LPCTSTR)credits, delimiter);
- }
- void CCreditStatic::SetSpeed(UINT index, int speed)
- {
- ASSERT(index <= DISPLAY_FAST);
- if(speed)
- m_DisplaySpeed[index] = speed;
- m_CurrentSpeed = index;
- }
- void CCreditStatic::SetColor(UINT index, COLORREF col)
- {
- ASSERT(index <= NORMAL_TEXT_COLOR);
- m_Colors[index] = col;
- }
- void CCreditStatic::SetTextHeight(UINT index, int height)
- {
- ASSERT(index <= NORMAL_TEXT_HEIGHT);
- m_TextHeights[index] = height;
- }
- void CCreditStatic::SetEscape(UINT index, char escape)
- {
- ASSERT(index <= DISPLAY_BITMAP);
- m_Escapes[index] = escape;
- }
- void CCreditStatic::SetGradient(UINT value)
- {
- ASSERT(value <= GRADIENT_LEFT_LIGHT);
- m_Gradient = value;
- }
- void CCreditStatic::SetTransparent(BOOL bTransparent)
- {
- m_bTransparent = bTransparent;
- }
- void CCreditStatic::OnPaint()
- {
- CPaintDC dc(this); // device context for painting
-
- if(TimerOn) return;
- CDC memDC;
- memDC.CreateCompatibleDC(&dc);
- CBitmap *pOldMemDCBitmap = NULL;
- CRect m_ScrollRect;
- GetClientRect(&m_ScrollRect);
- if(m_BmpMain.m_hObject == NULL) {
- CDC memDC2;
- CBitmap bitmap;
- memDC2.CreateCompatibleDC(&dc);
- bitmap.CreateCompatibleBitmap( &dc, m_ScrollRect.Width(), m_ScrollRect.Height() );
- CBitmap *pOldMemDC2Bitmap = (CBitmap*)memDC2.SelectObject(&bitmap);
-
- DrawCredit(&memDC2, m_ScrollRect);
- AddBackGround(&memDC2, m_ScrollRect, m_ScrollRect);
- pOldMemDCBitmap = (CBitmap*)memDC.SelectObject(&m_BmpMain);
- memDC.BitBlt( 0, 0, m_ScrollRect.Width(), m_ScrollRect.Height(),
- &memDC2, 0, 0, SRCCOPY );
- memDC2.SelectObject(pOldMemDC2Bitmap);
- }
- else
- pOldMemDCBitmap = (CBitmap*)memDC.SelectObject(&m_BmpMain);
-
- dc.BitBlt( 0, 0, m_ScrollRect.Width(), m_ScrollRect.Height(),
- &memDC, 0, 0, SRCCOPY );
- }
- BOOL CCreditStatic::OnEraseBkgnd(CDC* pDC)
- {
- return TRUE;
-
- // return CStatic::OnEraseBkgnd(pDC);
- }
- //************************************************************************
- // OnTimer
- //
- // On each of the display timers, scroll the window 1 unit. Each 20
- // units, fetch the next array element and load into work string. Call
- // Invalidate and UpdateWindow to invoke the OnPaint which will paint
- // the contents of the newly updated work string.
- //************************************************************************
- void CCreditStatic::OnTimer(UINT nIDEvent)
- {
- if (nIDEvent != DISPLAY_TIMER_ID)
- {
- CStatic::OnTimer(nIDEvent);
- return;
- }
- BOOL bCheck = FALSE;
- if (!m_bProcessingBitmap) {
- if (m_nCounter++ % m_nCurrentFontHeight == 0) // every x timer events, show new line
- {
- m_nCounter=1;
- m_szWork = m_ArrCredit.GetNext(m_ArrIndex);
- if(m_bFirstTurn)
- bCheck = TRUE;
- if(m_ArrIndex == NULL) {
- m_bFirstTurn = FALSE;
- m_ArrIndex = m_ArrCredit.GetHeadPosition();
- }
- m_nClip = 0;
- m_bDrawText=TRUE;
- }
- }
-
- CClientDC dc(this);
- CRect m_ScrollRect;
- GetClientRect(&m_ScrollRect);
-
- CRect m_ClientRect(m_ScrollRect);
- m_ClientRect.left = (m_ClientRect.Width()-n_MaxWidth)/2;
- m_ClientRect.right = m_ClientRect.left + n_MaxWidth;
- MoveCredit(&dc, m_ScrollRect, m_ClientRect, bCheck);
- AddBackGround(&dc, m_ScrollRect, m_ClientRect);
- CStatic::OnTimer(nIDEvent);
- }
- void CCreditStatic::AddBackGround(CDC* pDC, CRect& m_ScrollRect, CRect& m_ClientRect)
- {
- CDC memDC;
- memDC.CreateCompatibleDC( pDC );
- if( m_bitmap.m_hObject == NULL )
- {
- CBitmap* pOldBitmap = memDC.SelectObject( &m_BmpMain );
- pDC->BitBlt( 0, 0, m_ScrollRect.Width(), m_ScrollRect.Height(),
- &memDC, 0, 0, SRCCOPY );
- memDC.SelectObject(pOldBitmap);
- return;
- }
- // Draw bitmap in the background if one has been set
- // Now create a mask
- CBitmap bitmap;
- bitmap.CreateCompatibleBitmap( pDC, m_ClientRect.Width(), m_ClientRect.Height() );
- CBitmap* pOldMemDCBitmap = memDC.SelectObject( &bitmap );
-
- CDC tempDC;
- tempDC.CreateCompatibleDC(pDC);
- CBitmap* pOldTempDCBitmap = tempDC.SelectObject( &m_BmpMain );
- memDC.BitBlt( 0, 0, m_ClientRect.Width(), m_ClientRect.Height(), &tempDC,
- m_ClientRect.left, m_ClientRect.top, SRCCOPY );
- CDC maskDC;
- maskDC.CreateCompatibleDC(pDC);
- CBitmap maskBitmap;
- // Create monochrome bitmap for the mask
- maskBitmap.CreateBitmap( m_ClientRect.Width(), m_ClientRect.Height(), 1, 1, NULL );
- CBitmap* pOldMaskDCBitmap = maskDC.SelectObject( &maskBitmap );
- memDC.SetBkColor(m_bTransparent? RGB(192,192,192): m_Colors[BACKGROUND_COLOR]);
- // Create the mask from the memory DC
- maskDC.BitBlt( 0, 0, m_ClientRect.Width(), m_ClientRect.Height(), &memDC, 0, 0, SRCCOPY );
- tempDC.SelectObject(pOldTempDCBitmap);
- pOldTempDCBitmap = tempDC.SelectObject( &m_bitmap );
- CDC imageDC;
- CBitmap bmpImage;
- imageDC.CreateCompatibleDC( pDC );
- bmpImage.CreateCompatibleBitmap( pDC, m_ScrollRect.Width(), m_ScrollRect.Height() );
- CBitmap* pOldImageDCBitmap = imageDC.SelectObject( &bmpImage );
- if( pDC->GetDeviceCaps(RASTERCAPS) & RC_PALETTE && m_pal.m_hObject != NULL )
- {
- pDC->SelectPalette( &m_pal, FALSE );
- pDC->RealizePalette();
- imageDC.SelectPalette( &m_pal, FALSE );
- }
- // Get x and y offset
- // Draw bitmap in tiled manner to imageDC
- for( int i = 0; i < m_ScrollRect.right; i += m_cxBitmap )
- for( int j = 0; j < m_ScrollRect.bottom; j += m_cyBitmap )
- imageDC.BitBlt( i, j, m_cxBitmap, m_cyBitmap, &tempDC, 0, 0, SRCCOPY );
- // Set the background in memDC to black. Using SRCPAINT with black and any other
- // color results in the other color, thus making black the transparent color
- memDC.SetBkColor(RGB(0,0,0));
- memDC.SetTextColor(RGB(255,255,255));
- memDC.BitBlt(0, 0, m_ClientRect.Width(), m_ClientRect.Height(), &maskDC, 0, 0, SRCAND);
- // Set the foreground to black. See comment above.
- imageDC.SetBkColor(RGB(255,255,255));
- imageDC.SetTextColor(RGB(0,0,0));
- imageDC.BitBlt(m_ClientRect.left, m_ClientRect.top, m_ClientRect.Width(), m_ClientRect.Height(),
- &maskDC, 0, 0, SRCAND);
- // Combine the foreground with the background
- imageDC.BitBlt(m_ClientRect.left, m_ClientRect.top, m_ClientRect.Width(), m_ClientRect.Height(),
- &memDC, 0, 0,SRCPAINT);
- // Draw the final image to the screen
- pDC->BitBlt( 0, 0, m_ScrollRect.Width(), m_ScrollRect.Height(),
- &imageDC, 0, 0, SRCCOPY );
- imageDC.SelectObject(pOldImageDCBitmap);
- maskDC.SelectObject(pOldMaskDCBitmap);
- tempDC.SelectObject(pOldTempDCBitmap);
- memDC.SelectObject(pOldMemDCBitmap);
- }
- void CCreditStatic::DrawBitmap(CDC* pDC, CDC* pDC2, CRect *rBitmap)
- {
- if(!m_bTransparent || m_bitmap.m_hObject != NULL) {
- pDC->BitBlt( rBitmap->left, rBitmap->top, rBitmap->Width(), rBitmap->Height(),
- pDC2, 0, 0, SRCCOPY );
- return;
- }
- CDC memDC;
- memDC.CreateCompatibleDC( pDC );
- // Now create a mask
- CBitmap bitmap;
- bitmap.CreateCompatibleBitmap( pDC, rBitmap->Width(), rBitmap->Height() );
- CBitmap* pOldMemDCBitmap = memDC.SelectObject( &bitmap );
-
- memDC.BitBlt( 0, 0, rBitmap->Width(), rBitmap->Height(), pDC2, 0, 0, SRCCOPY );
- CDC maskDC;
- maskDC.CreateCompatibleDC(pDC);
- // Create monochrome bitmap for the mask
- CBitmap maskBitmap;
- maskBitmap.CreateBitmap( rBitmap->Width(), rBitmap->Height(), 1, 1, NULL );
- CBitmap* pOldMaskDCBitmap = maskDC.SelectObject( &maskBitmap );
- memDC.SetBkColor(RGB(192,192,192));
- // Create the mask from the memory DC
- maskDC.BitBlt( 0, 0, rBitmap->Width(), rBitmap->Height(), &memDC, 0, 0, SRCCOPY );
- CDC imageDC;
- CBitmap bmpImage;
- imageDC.CreateCompatibleDC( pDC );
- bmpImage.CreateCompatibleBitmap( pDC, rBitmap->Width(), rBitmap->Height() );
- CBitmap* pOldImageDCBitmap = imageDC.SelectObject( &bmpImage );
- imageDC.BitBlt(0, 0, rBitmap->Width(), rBitmap->Height(), pDC, rBitmap->left, rBitmap->top, SRCCOPY);
- // Set the background in memDC to black. Using SRCPAINT with black and any other
- // color results in the other color, thus making black the transparent color
- memDC.SetBkColor(RGB(0,0,0));
- memDC.SetTextColor(RGB(255,255,255));
- memDC.BitBlt(0, 0, rBitmap->Width(), rBitmap->Height(), &maskDC, 0, 0, SRCAND);
- // Set the foreground to black. See comment above.
- imageDC.SetBkColor(RGB(255,255,255));
- imageDC.SetTextColor(RGB(0,0,0));
- imageDC.BitBlt(0, 0, rBitmap->Width(), rBitmap->Height(), &maskDC, 0, 0, SRCAND);
- // Combine the foreground with the background
- imageDC.BitBlt(0, 0, rBitmap->Width(), rBitmap->Height(), &memDC, 0, 0,SRCPAINT);
- // Draw the final image to the screen
- pDC->BitBlt( rBitmap->left, rBitmap->top, rBitmap->Width(), rBitmap->Height(),
- &imageDC, 0, 0, SRCCOPY );
- imageDC.SelectObject(pOldImageDCBitmap);
- maskDC.SelectObject(pOldMaskDCBitmap);
- memDC.SelectObject(pOldMemDCBitmap);
- }
- void CCreditStatic::FillGradient(CDC *pDC, CRect *m_ScrollRect, CRect *m_FillRect, COLORREF color)
- {
- float fStep,fRStep,fGStep,fBStep; // How large is each band?
- int iOnBand; // Loop index
- WORD R = GetRValue(color);
- WORD G = GetGValue(color);
- WORD B = GetBValue(color);
- // Determine how large each band should be in order to cover the
- // client with 256 bands (one for every color intensity level)
- if(m_Gradient % 2) {
- fRStep = (float)R / 255.0f;
- fGStep = (float)G / 255.0f;
- fBStep = (float)B / 255.0f;
- } else {
- fRStep = (float)(255-R) / 255.0f;
- fGStep = (float)(255-G) / 255.0f;
- fBStep = (float)(255-B) / 255.0f;
- }
- COLORREF OldCol = pDC->GetBkColor();
- // Start filling bands
- fStep = (float)m_ScrollRect->Width() / 256.0f;
- for(iOnBand = (256*m_FillRect->left)/m_ScrollRect->Width();
- (int)(iOnBand*fStep) < m_FillRect->right && iOnBand < 256; iOnBand++) {
- CRect r((int)(iOnBand * fStep), m_FillRect->top,
- (int)((iOnBand+1) * fStep), m_FillRect->bottom+1);
- COLORREF col;
- switch(m_Gradient) {
- case GRADIENT_RIGHT_DARK:
- col = RGB((int)(R-iOnBand*fRStep),(int)(G-iOnBand*fGStep),(int)(B-iOnBand*fBStep));
- break;
- case GRADIENT_RIGHT_LIGHT:
- col = RGB((int)(R+iOnBand*fRStep),(int)(G+iOnBand*fGStep),(int)(B+iOnBand*fBStep));
- break;
- case GRADIENT_LEFT_DARK:
- col = RGB((int)(iOnBand*fRStep),(int)(iOnBand*fGStep),(int)(iOnBand*fBStep));
- break;
- case GRADIENT_LEFT_LIGHT:
- col = RGB(255-(int)(iOnBand*fRStep),255-(int)(iOnBand*fGStep),255-(int)(iOnBand*fBStep));
- break;
- default:
- return;
- }
- pDC->FillSolidRect(&r, col);
- }
- pDC->SetBkColor(OldCol);
- }
- #define SCROLLDC
- void CCreditStatic::MoveCredit(CDC* pDC, CRect& m_ScrollRect, CRect& m_ClientRect, BOOL bCheck)
- {
- CDC memDC,memDC2;
- memDC.CreateCompatibleDC(pDC);
- memDC2.CreateCompatibleDC(pDC);
-
- COLORREF BackColor = (m_bTransparent && m_bitmap.m_hObject != NULL)? RGB(192,192,192) : m_Colors[BACKGROUND_COLOR];
- CBitmap *pOldMemDCBitmap = NULL;
- CBitmap *pOldMemDC2Bitmap = NULL;
- #ifdef SCROLLDC
- CRect r1;
- #endif
- if(m_BmpMain.m_hObject == NULL) {
- m_BmpMain.CreateCompatibleBitmap( pDC, m_ScrollRect.Width(), m_ScrollRect.Height() );
- pOldMemDCBitmap = (CBitmap*)memDC.SelectObject(&m_BmpMain);
- if(m_Gradient && m_bitmap.m_hObject == NULL)
- FillGradient(&memDC, &m_ScrollRect, &m_ScrollRect,m_Colors[BACKGROUND_COLOR]);
- else
- memDC.FillSolidRect(&m_ScrollRect,BackColor);
- } else
- pOldMemDCBitmap = (CBitmap*)memDC.SelectObject(&m_BmpMain);
- if(m_ClientRect.Width() > 0) {
- #ifndef SCROLLDC
- CBitmap bitmap;
- bitmap.CreateCompatibleBitmap( pDC, m_ClientRect.Width(), m_ClientRect.Height() );
- pOldMemDC2Bitmap = memDC2.SelectObject(&bitmap);
- memDC2.BitBlt( 0, 0, m_ClientRect.Width(), m_ClientRect.Height()-abs(m_ScrollAmount),
- &memDC, m_ClientRect.left, abs(m_ScrollAmount), SRCCOPY );
- memDC.BitBlt( m_ClientRect.left, 0, m_ClientRect.Width(), m_ClientRect.Height(),
- &memDC2, 0, 0, SRCCOPY );
-
- memDC2.SelectObject(pOldMemDC2Bitmap);
- pOldMemDC2Bitmap = NULL;
- #else
- CRgn RgnUpdate;
- memDC.ScrollDC(0,m_ScrollAmount,(LPCRECT)m_ScrollRect,(LPCRECT)m_ClientRect,&RgnUpdate,
- (LPRECT)r1);
- }
- else {
- r1 = m_ScrollRect;
- r1.top = r1.bottom-abs(m_ScrollAmount);
- #endif
- }
- m_nClip = m_nClip + abs(m_ScrollAmount);
-
- //*********************************************************************
- // FONT SELECTION
- CFont m_fntArial;
- CFont* pOldFont = NULL;
- BOOL bSuccess = FALSE;
-
- BOOL bUnderline;
- BOOL bItalic;
- int rmcode = 0;
- if (!m_szWork.IsEmpty()) {
- char c = m_szWork[m_szWork.GetLength()-1];
- if(c == m_Escapes[TOP_LEVEL_GROUP]) {
- rmcode = 1;
- bItalic = FALSE;
- bUnderline = FALSE;
- m_nCurrentFontHeight = m_TextHeights[TOP_LEVEL_GROUP_HEIGHT];
- bSuccess = m_fntArial.CreateFont(m_TextHeights[TOP_LEVEL_GROUP_HEIGHT], 0, 0, 0,
- FW_BOLD, bItalic, bUnderline, 0,
- ANSI_CHARSET,
- OUT_DEFAULT_PRECIS,
- CLIP_DEFAULT_PRECIS,
- PROOF_QUALITY,
- VARIABLE_PITCH | 0x04 | FF_DONTCARE,
- (LPSTR)"Arial");
- memDC.SetTextColor(m_Colors[TOP_LEVEL_GROUP_COLOR]);
- if (pOldFont != NULL) memDC.SelectObject(pOldFont);
- pOldFont = memDC.SelectObject(&m_fntArial);
-
- }
- else if(c == m_Escapes[GROUP_TITLE]) {
- rmcode = 1;
- bItalic = FALSE;
- bUnderline = FALSE;
- m_nCurrentFontHeight = m_TextHeights[GROUP_TITLE_HEIGHT];
- bSuccess = m_fntArial.CreateFont(m_TextHeights[GROUP_TITLE_HEIGHT], 0, 0, 0,
- FW_BOLD, bItalic, bUnderline, 0,
- ANSI_CHARSET,
- OUT_DEFAULT_PRECIS,
- CLIP_DEFAULT_PRECIS,
- PROOF_QUALITY,
- VARIABLE_PITCH | 0x04 | FF_DONTCARE,
- (LPSTR)"Arial");
- memDC.SetTextColor(m_Colors[GROUP_TITLE_COLOR]);
- if (pOldFont != NULL) memDC.SelectObject(pOldFont);
- pOldFont = memDC.SelectObject(&m_fntArial);
- }
- else if(c == m_Escapes[TOP_LEVEL_TITLE]) {
- rmcode = 1;
- bItalic = FALSE;
- // bUnderline = TRUE;
- bUnderline = FALSE;
- m_nCurrentFontHeight = m_TextHeights[TOP_LEVEL_TITLE_HEIGHT];
- bSuccess = m_fntArial.CreateFont(m_TextHeights[TOP_LEVEL_TITLE_HEIGHT], 0, 0, 0,
- FW_BOLD, bItalic, bUnderline, 0,
- ANSI_CHARSET,
- OUT_DEFAULT_PRECIS,
- CLIP_DEFAULT_PRECIS,
- PROOF_QUALITY,
- VARIABLE_PITCH | 0x04 | FF_DONTCARE,
- (LPSTR)"Arial");
- memDC.SetTextColor(m_Colors[TOP_LEVEL_TITLE_COLOR]);
- if (pOldFont != NULL) memDC.SelectObject(pOldFont);
- pOldFont = memDC.SelectObject(&m_fntArial);
- }
- else if(c == m_Escapes[DISPLAY_BITMAP]) {
- if (!m_bProcessingBitmap)
- {
- CString szBitmap = m_szWork.Left(m_szWork.GetLength()-1);
- if(m_bmpWork.LoadBitmap((const char *)szBitmap)) {
- BITMAP m_bmpInfo;
- m_bmpWork.GetObject(sizeof(BITMAP), &m_bmpInfo);
-
- m_size.cx = m_bmpInfo.bmWidth; // width of dest rect
- m_size.cy = m_bmpInfo.bmHeight;
- // upper left point of dest
- m_pt.x = (m_ClientRect.right -
- ((m_ClientRect.Width())/2) - (m_size.cx/2));
- m_pt.y = m_ClientRect.bottom;
-
- m_bProcessingBitmap = TRUE;
- if (pOldMemDC2Bitmap != NULL) memDC2.SelectObject(pOldMemDC2Bitmap);
- pOldMemDC2Bitmap = memDC2.SelectObject(&m_bmpWork);
- }
- else
- c = ' ';
- }
- else {
- if (pOldMemDC2Bitmap != NULL) memDC2.SelectObject(pOldMemDC2Bitmap);
- pOldMemDC2Bitmap = memDC2.SelectObject(&m_bmpWork);
- }
- }
- else {
- bItalic = FALSE;
- bUnderline = FALSE;
- m_nCurrentFontHeight = m_TextHeights[NORMAL_TEXT_HEIGHT];
- bSuccess = m_fntArial.CreateFont(m_TextHeights[NORMAL_TEXT_HEIGHT], 0, 0, 0,
- FW_THIN, bItalic, bUnderline, 0,
- ANSI_CHARSET,
- OUT_DEFAULT_PRECIS,
- CLIP_DEFAULT_PRECIS,
- PROOF_QUALITY,
- VARIABLE_PITCH | 0x04 | FF_DONTCARE,
- (LPSTR)"Arial");
- memDC.SetTextColor(m_Colors[NORMAL_TEXT_COLOR]);
- if (pOldFont != NULL) memDC.SelectObject(pOldFont);
- pOldFont = memDC.SelectObject(&m_fntArial);
- }
- }
- #ifndef SCROLLDC
- CRect r1(m_ScrollRect);
- r1.top = r1.bottom-abs(m_ScrollAmount);
- #endif
- if(m_Gradient && m_bitmap.m_hObject == NULL)
- FillGradient(&memDC, &m_ScrollRect, &r1, m_Colors[BACKGROUND_COLOR]);
- else
- memDC.FillSolidRect(&r1,BackColor);
- memDC.SetBkMode(TRANSPARENT);
- if (!m_bProcessingBitmap)
- {
- if(bCheck) {
- CSize size = memDC.GetTextExtent((LPCTSTR)m_szWork,m_szWork.GetLength()-rmcode);
- if(size.cx > n_MaxWidth) {
- n_MaxWidth = (size.cx > m_ScrollRect.Width())? m_ScrollRect.Width():size.cx;
- m_ClientRect.left = (m_ScrollRect.Width()-n_MaxWidth)/2;
- m_ClientRect.right = m_ClientRect.left + n_MaxWidth;
- }
-
- }
- CRect r(m_ClientRect);
- r.top = r.bottom-m_nClip;
- int x = memDC.DrawText((const char *)m_szWork,m_szWork.GetLength()-rmcode,&r,DT_TOP|DT_CENTER|
- DT_NOPREFIX | DT_SINGLELINE);
- m_bDrawText=FALSE;
- }
- else
- {
- if(bCheck) {
- CSize size = memDC.GetTextExtent((LPCTSTR)m_szWork,m_szWork.GetLength()-rmcode);
- if(m_size.cx > n_MaxWidth) {
- n_MaxWidth = (m_size.cx > m_ScrollRect.Width())? m_ScrollRect.Width():m_size.cx;
- m_ClientRect.left = (m_ScrollRect.Width()-n_MaxWidth)/2;
- m_ClientRect.right = m_ClientRect.left + n_MaxWidth;
- }
- }
- CRect r( m_pt.x, m_pt.y-m_nClip, m_pt.x+ m_size.cx, m_pt.y);
- DrawBitmap(&memDC, &memDC2, &r);
- // memDC.BitBlt( m_pt.x, m_pt.y-m_nClip, m_size.cx, m_nClip,
- // &memDC2, 0, 0, SRCCOPY );
- if (m_nClip >= m_size.cy)
- {
- m_bmpWork.DeleteObject();
- m_bProcessingBitmap = FALSE;
- m_nClip=0;
- m_szWork.Empty();
- m_nCounter=1;
- }
- }
- if (pOldMemDC2Bitmap != NULL) memDC2.SelectObject(pOldMemDC2Bitmap);
- if (pOldFont != NULL) memDC.SelectObject(pOldFont);
- memDC.SelectObject(pOldMemDCBitmap);
- }
- void CCreditStatic::DrawCredit(CDC* pDC, CRect& m_ScrollRect)
- {
- if(m_BmpMain.m_hObject != NULL) return;
- CDC memDC,memDC2;
- memDC.CreateCompatibleDC(pDC);
- memDC2.CreateCompatibleDC(pDC);
- COLORREF BackColor = (m_bTransparent && m_bitmap.m_hObject != NULL)? RGB(192,192,192) : m_Colors[BACKGROUND_COLOR];
-
- CBitmap *pOldMemDCBitmap = NULL;
- m_BmpMain.CreateCompatibleBitmap( pDC, m_ScrollRect.Width(), m_ScrollRect.Height() );
- pOldMemDCBitmap = (CBitmap*)memDC.SelectObject(&m_BmpMain);
- if(m_Gradient && m_bitmap.m_hObject == NULL)
- FillGradient(&memDC, &m_ScrollRect, &m_ScrollRect, m_Colors[BACKGROUND_COLOR]);
- else
- memDC.FillSolidRect(&m_ScrollRect, BackColor);
- POSITION pos = m_ArrCredit.GetHeadPosition();
- int height = 0;
- while(pos != NULL && height <= m_ScrollRect.Height()) {
- CString m_szWork = m_ArrCredit.GetNext(pos);
- CFont m_fntArial;
- CFont *pOldFont = NULL;
- CBitmap *pOldMemDC2Bitmap = NULL;
-
- CDC memDC2;
- memDC2.CreateCompatibleDC(pDC);
- //*********************************************************************
- // FONT SELECTION
-
-
- BOOL bSuccess = FALSE;
- BOOL bIsBitmap = FALSE;
-
- BOOL bUnderline;
- BOOL bItalic;
- int rmcode = 0;
- CBitmap bitmap;
- if (!m_szWork.IsEmpty()) {
- char c = m_szWork[m_szWork.GetLength()-1];
- if(c == m_Escapes[TOP_LEVEL_GROUP]) {
- rmcode = 1;
- bItalic = FALSE;
- bUnderline = FALSE;
- m_nCurrentFontHeight = m_TextHeights[TOP_LEVEL_GROUP_HEIGHT];
- bSuccess = m_fntArial.CreateFont(m_TextHeights[TOP_LEVEL_GROUP_HEIGHT], 0, 0, 0,
- FW_BOLD, bItalic, bUnderline, 0,
- ANSI_CHARSET,
- OUT_DEFAULT_PRECIS,
- CLIP_DEFAULT_PRECIS,
- PROOF_QUALITY,
- VARIABLE_PITCH | 0x04 | FF_DONTCARE,
- (LPSTR)"Arial");
- memDC.SetTextColor(m_Colors[TOP_LEVEL_GROUP_COLOR]);
- pOldFont = memDC.SelectObject(&m_fntArial);
-
- }
- else if(c == m_Escapes[GROUP_TITLE]) {
- rmcode = 1;
- bItalic = FALSE;
- bUnderline = FALSE;
- m_nCurrentFontHeight = m_TextHeights[GROUP_TITLE_HEIGHT];
- bSuccess = m_fntArial.CreateFont(m_TextHeights[GROUP_TITLE_HEIGHT], 0, 0, 0,
- FW_BOLD, bItalic, bUnderline, 0,
- ANSI_CHARSET,
- OUT_DEFAULT_PRECIS,
- CLIP_DEFAULT_PRECIS,
- PROOF_QUALITY,
- VARIABLE_PITCH | 0x04 | FF_DONTCARE,
- (LPSTR)"Arial");
- memDC.SetTextColor(m_Colors[GROUP_TITLE_COLOR]);
- pOldFont = memDC.SelectObject(&m_fntArial);
- }
- else if(c == m_Escapes[TOP_LEVEL_TITLE]) {
- rmcode = 1;
- bItalic = FALSE;
- // bUnderline = TRUE;
- bUnderline = FALSE;
- m_nCurrentFontHeight = m_TextHeights[TOP_LEVEL_TITLE_HEIGHT];
- bSuccess = m_fntArial.CreateFont(m_TextHeights[TOP_LEVEL_TITLE_HEIGHT], 0, 0, 0,
- FW_BOLD, bItalic, bUnderline, 0,
- ANSI_CHARSET,
- OUT_DEFAULT_PRECIS,
- CLIP_DEFAULT_PRECIS,
- PROOF_QUALITY,
- VARIABLE_PITCH | 0x04 | FF_DONTCARE,
- (LPSTR)"Arial");
- memDC.SetTextColor(m_Colors[TOP_LEVEL_TITLE_COLOR]);
- pOldFont = memDC.SelectObject(&m_fntArial);
- }
- else if(c == m_Escapes[DISPLAY_BITMAP]) {
- CString szBitmap = m_szWork.Left(m_szWork.GetLength()-1);
- if(bitmap.LoadBitmap((const char *)szBitmap)) {
- BITMAP m_bmpInfo;
- bitmap.GetObject(sizeof(BITMAP), &m_bmpInfo);
-
- m_size.cx = m_bmpInfo.bmWidth; // width of dest rect
- m_size.cy = m_bmpInfo.bmHeight;
- // upper left point of dest
- m_pt.x = (m_ScrollRect.right -
- ((m_ScrollRect.Width())/2) - (m_size.cx/2));
- m_pt.y = height;
- pOldMemDC2Bitmap = memDC2.SelectObject(&bitmap);
- bIsBitmap = TRUE;
- }
- else
- c = ' ';
- }
- else {
- bItalic = FALSE;
- bUnderline = FALSE;
- m_nCurrentFontHeight = m_TextHeights[NORMAL_TEXT_HEIGHT];
- bSuccess = m_fntArial.CreateFont(m_TextHeights[NORMAL_TEXT_HEIGHT], 0, 0, 0,
- FW_THIN, bItalic, bUnderline, 0,
- ANSI_CHARSET,
- OUT_DEFAULT_PRECIS,
- CLIP_DEFAULT_PRECIS,
- PROOF_QUALITY,
- VARIABLE_PITCH | 0x04 | FF_DONTCARE,
- (LPSTR)"Arial");
- memDC.SetTextColor(m_Colors[NORMAL_TEXT_COLOR]);
- pOldFont = memDC.SelectObject(&m_fntArial);
- }
- }
- memDC.SetBkMode(TRANSPARENT);
- if (!bIsBitmap)
- {
- CRect r(m_ScrollRect);
- r.top = height;
- CSize size;
- if(m_szWork.GetLength()-rmcode != 0)
- {
- int x = memDC.DrawText((const char *)m_szWork,m_szWork.GetLength()-rmcode,&r,DT_TOP|DT_CENTER|
- DT_NOPREFIX | DT_SINGLELINE);
- size = memDC.GetTextExtent((LPCTSTR)m_szWork,m_szWork.GetLength()-rmcode);
- }
- else
- size = memDC.GetTextExtent((LPCTSTR)"W",1);
- height += size.cy;
- }
- else
- {
- CRect r( m_pt.x, m_pt.y, m_pt.x + m_size.cx, m_pt.y + m_size.cy);
- DrawBitmap(&memDC, &memDC2, &r);
- // memDC.BitBlt( m_pt.x, m_pt.y, m_size.cx, m_size.cy, &memDC2, 0, 0, SRCCOPY );
- height += m_size.cy;
- }
- if (pOldMemDC2Bitmap != NULL) memDC2.SelectObject(pOldMemDC2Bitmap);
- if (pOldFont != NULL) memDC.SelectObject(pOldFont);
- }
- memDC.SelectObject(pOldMemDCBitmap);
- }
- void CCreditStatic::OnDestroy()
- {
- CStatic::OnDestroy();
- m_ArrCredit.RemoveAll();
- if(TimerOn)
- ASSERT(KillTimer(DISPLAY_TIMER_ID));
- }
- BOOL CCreditStatic::SetBkImage(UINT nIDResource)
- {
- return SetBkImage( (LPCTSTR)nIDResource );
- }
- BOOL CCreditStatic::SetBkImage(LPCTSTR lpszResourceName)
- {
- // If this is not the first call then Delete GDI objects
- if( m_bitmap.m_hObject != NULL )
- m_bitmap.DeleteObject();
- if( m_pal.m_hObject != NULL )
- m_pal.DeleteObject();
-
-
- HBITMAP hBmp = (HBITMAP)::LoadImage( AfxGetInstanceHandle(),
- lpszResourceName, IMAGE_BITMAP, 0,0, LR_CREATEDIBSECTION );
- if( hBmp == NULL )
- return FALSE;
- m_bitmap.Attach( hBmp );
- BITMAP bm;
- m_bitmap.GetBitmap( &bm );
- m_cxBitmap = bm.bmWidth;
- m_cyBitmap = bm.bmHeight;
- // Create a logical palette for the bitmap
- DIBSECTION ds;
- BITMAPINFOHEADER &bmInfo = ds.dsBmih;
- m_bitmap.GetObject( sizeof(ds), &ds );
- int nColors = bmInfo.biClrUsed ? bmInfo.biClrUsed : 1 << bmInfo.biBitCount;
- // Create a halftone palette if colors > 256.
- CClientDC dc(NULL); // Desktop DC
- if( nColors > 256 )
- m_pal.CreateHalftonePalette( &dc );
- else
- {
- // Create the palette
- RGBQUAD *pRGB = new RGBQUAD[nColors];
- CDC memDC;
- memDC.CreateCompatibleDC(&dc);
- CBitmap* pOldMemDCBitmap = memDC.SelectObject( &m_bitmap );
- ::GetDIBColorTable( memDC, 0, nColors, pRGB );
- UINT nSize = sizeof(LOGPALETTE) + (sizeof(PALETTEENTRY) * nColors);
- LOGPALETTE *pLP = (LOGPALETTE *) new BYTE[nSize];
- pLP->palVersion = 0x300;
- pLP->palNumEntries = nColors;
- for( int i=0; i < nColors; i++)
- {
- pLP->palPalEntry[i].peRed = pRGB[i].rgbRed;
- pLP->palPalEntry[i].peGreen = pRGB[i].rgbGreen;
- pLP->palPalEntry[i].peBlue = pRGB[i].rgbBlue;
- pLP->palPalEntry[i].peFlags = 0;
- }
- m_pal.CreatePalette( pLP );
- memDC.SelectObject(pOldMemDCBitmap);
- delete[] pLP;
- delete[] pRGB;
- }
- // Invalidate();
- return TRUE;
- }
复制代码
|