363 lines
11 KiB
C++
363 lines
11 KiB
C++
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/*******************************************************************************
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*
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* (C) COPYRIGHT MICROSOFT CORPORATION, 1998
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*
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* TITLE: CONTRAST.CPP
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*
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* VERSION: 1.0
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*
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* AUTHOR: ShaunIv
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*
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* DATE: 1/11/2001
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*
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* DESCRIPTION: Small preview window for illustrating brightness and contrast settings
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*
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*******************************************************************************/
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#include "precomp.h"
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#pragma hdrstop
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#include "contrast.h"
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LRESULT CBrightnessContrast::OnCreate( WPARAM, LPARAM )
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{
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return 0;
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}
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CBrightnessContrast::~CBrightnessContrast()
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{
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KillBitmaps();
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}
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CBrightnessContrast::CBrightnessContrast( HWND hWnd )
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: m_hWnd(hWnd),
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m_nIntent(0),
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m_nBrightness(50),
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m_nContrast(50),
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m_hBmpPreviewImage(NULL)
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{
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for (int i=0;i<NUMPREVIEWIMAGES;i++)
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{
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m_PreviewBitmaps[i] = NULL;
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}
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}
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LRESULT CBrightnessContrast::OnPaint(WPARAM, LPARAM)
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{
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::OnPaint")));
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PAINTSTRUCT ps;
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HDC hDC = BeginPaint(m_hWnd,&ps);
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if (hDC)
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{
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if (m_hBmpPreviewImage)
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{
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RECT rcClient;
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GetClientRect( m_hWnd, &rcClient );
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//
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// Create a halftone palette
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//
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HPALETTE hHalftonePalette = CreateHalftonePalette(hDC);
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if (hHalftonePalette)
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{
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//
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// Select the halftone palette and save the result
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//
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HPALETTE hOldPalette = SelectPalette( hDC, hHalftonePalette, FALSE );
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RealizePalette( hDC );
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SetBrushOrgEx( hDC, 0,0, NULL );
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//
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// Set halftone stretchblt mode
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//
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int nOldStretchBltMode = SetStretchBltMode(hDC,HALFTONE);
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//
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// Draw 3D Border
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//
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//
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// Draw shadow
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//
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RECT rcBottomShadow, rcRightShadow;
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MoveToEx(hDC,rcClient.left,rcClient.top,NULL);
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LineTo(hDC,rcClient.right-(SHADOW_WIDTH+1),rcClient.top);
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LineTo(hDC,rcClient.right-(SHADOW_WIDTH+1),rcClient.bottom-(SHADOW_WIDTH+1));
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LineTo(hDC,rcClient.left,rcClient.bottom-(SHADOW_WIDTH+1));
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LineTo(hDC,rcClient.left,rcClient.top);
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rcBottomShadow.left=rcClient.left+SHADOW_WIDTH;
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rcBottomShadow.right=rcClient.right+1;
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rcBottomShadow.top=rcClient.bottom-SHADOW_WIDTH;
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rcBottomShadow.bottom=rcClient.bottom+1;
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//
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// bottom edge:
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//
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FillRect(hDC,&rcBottomShadow,GetSysColorBrush(COLOR_3DSHADOW));
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//
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// Fill in bottom left corner:
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//
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rcBottomShadow.left=rcClient.left;
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rcBottomShadow.right=rcClient.left+SHADOW_WIDTH;
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rcBottomShadow.top=rcClient.bottom-SHADOW_WIDTH;
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rcBottomShadow.bottom=rcClient.bottom+1;
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FillRect(hDC,&rcBottomShadow,GetSysColorBrush(COLOR_3DFACE));
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rcRightShadow.left=rcClient.right-SHADOW_WIDTH;
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rcRightShadow.right=rcClient.right+1;
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rcRightShadow.top=rcClient.top+SHADOW_WIDTH;
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rcRightShadow.bottom=rcClient.bottom-SHADOW_WIDTH;
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//
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// right edge
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//
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FillRect(hDC,&rcRightShadow,GetSysColorBrush(COLOR_3DSHADOW));
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rcRightShadow.left=rcClient.right-5;
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rcRightShadow.right=rcClient.right+1;
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rcRightShadow.top=rcClient.top;
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rcRightShadow.bottom=rcClient.top+5;
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//
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// Top right corner
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//
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FillRect(hDC,&rcRightShadow,(HBRUSH)(COLOR_3DFACE+1));
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//
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// Paint Image
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//
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HDC hdcMem = CreateCompatibleDC(hDC);
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if (hdcMem)
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{
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//
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// Select and realize the halftone palette
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//
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HPALETTE hOldMemDCPalette = SelectPalette(hdcMem,hHalftonePalette,FALSE);
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RealizePalette(hdcMem);
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SetBrushOrgEx(hdcMem, 0,0, NULL );
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//
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// Select the old bitmap
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//
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HBITMAP hOldBitmap = (HBITMAP)SelectObject(hdcMem,m_hBmpPreviewImage);
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//
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// Paint the preview bitmap
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//
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BITMAP bm = {0};
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if (GetObject(m_hBmpPreviewImage,sizeof(BITMAP),&bm))
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{
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StretchBlt(hDC,rcClient.left+2,rcClient.top+2,WiaUiUtil::RectWidth(rcClient)-9,WiaUiUtil::RectHeight(rcClient)-9,hdcMem,0,0,bm.bmWidth,bm.bmHeight,SRCCOPY);
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}
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//
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// Restore the palette
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//
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SelectPalette( hdcMem, hOldMemDCPalette, FALSE );
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//
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// Delete the DC
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//
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DeleteDC(hdcMem);
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}
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//
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// Restore the old palette and delete the halftone palette
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//
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SelectPalette( hDC, hOldPalette, FALSE );
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DeleteObject( hHalftonePalette );
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}
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//
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// We're done
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//
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EndPaint(m_hWnd,&ps);
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}
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}
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return 0;
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}
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LRESULT CBrightnessContrast::SetBrightness(int nBrightness)
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{
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::SetBrightness")));
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if (nBrightness >= 0 && nBrightness <= 100)
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{
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m_nBrightness = static_cast<BYTE>(nBrightness);
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ApplySettings();
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}
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return 0;
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}
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LRESULT CBrightnessContrast::SetContrast(int nContrast)
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{
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::SetContrast")));
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if (m_nContrast >= 0 && m_nContrast <= 100)
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{
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m_nContrast = static_cast<BYTE>(nContrast);
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ApplySettings();
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}
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return 0;
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}
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LRESULT CBrightnessContrast::SetIntent(LONG nIntent)
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{
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::SetIntent")));
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if (nIntent < NUMPREVIEWIMAGES && nIntent >= 0)
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{
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m_nIntent = nIntent;
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ApplySettings();
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}
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return 0;
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}
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LRESULT CBrightnessContrast::KillBitmaps()
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{
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::KillBitmaps")));
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for (int i=0;i<NUMPREVIEWIMAGES;i++)
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{
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if (m_PreviewBitmaps[i])
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{
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DeleteObject( m_PreviewBitmaps[i] );
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m_PreviewBitmaps[i] = NULL;
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}
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}
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if (m_hBmpPreviewImage)
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{
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DeleteObject(m_hBmpPreviewImage);
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m_hBmpPreviewImage = NULL;
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}
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return 0;
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}
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LRESULT CBrightnessContrast::ApplySettings()
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{
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::ApplySettings")));
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if (m_PreviewBitmaps[m_nIntent])
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{
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if (m_hBmpPreviewImage)
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{
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DeleteObject(m_hBmpPreviewImage);
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m_hBmpPreviewImage = NULL;
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}
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#ifdef DONT_USE_GDIPLUS
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m_hBmpPreviewImage = reinterpret_cast<HBITMAP>(CopyImage( m_PreviewBitmaps[m_nIntent], IMAGE_BITMAP, 0, 0, LR_CREATEDIBSECTION ));
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#else
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//
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// If the window is enabled, use the real brightness and contrast settings
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//
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if (IsWindowEnabled(m_hWnd))
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{
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if (BCPWM_BW == m_nIntent)
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{
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m_GdiPlusHelper.SetThreshold( m_PreviewBitmaps[m_nIntent], m_hBmpPreviewImage, m_nBrightness );
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}
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else
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{
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m_GdiPlusHelper.SetBrightnessAndContrast( m_PreviewBitmaps[m_nIntent], m_hBmpPreviewImage, m_nBrightness, m_nContrast );
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}
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}
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//
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// Otherwise, use the nominal settings, to prevent feedback
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//
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else
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{
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if (BCPWM_BW == m_nIntent)
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{
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m_GdiPlusHelper.SetThreshold( m_PreviewBitmaps[m_nIntent], m_hBmpPreviewImage, 50 );
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}
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else
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{
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m_GdiPlusHelper.SetBrightnessAndContrast( m_PreviewBitmaps[m_nIntent], m_hBmpPreviewImage, 50, 50 );
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}
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}
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#endif // !DONT_USE_GDIPLUS
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}
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InvalidateRect(m_hWnd,NULL,FALSE);
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UpdateWindow(m_hWnd);
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return 0;
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}
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BOOL CBrightnessContrast::RegisterClass( HINSTANCE hInstance )
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{
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WNDCLASS wc = {0};
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wc.style = CS_DBLCLKS;
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wc.cbWndExtra = sizeof(CBrightnessContrast*);
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wc.lpfnWndProc = WndProc;
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wc.hInstance = hInstance;
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wc.hbrBackground = (HBRUSH)(COLOR_3DFACE+1);
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wc.lpszClassName = BRIGHTNESS_CONTRAST_PREVIEW_WINDOW_CLASS;
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BOOL res = (::RegisterClass(&wc) != 0);
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return (res != 0);
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}
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LRESULT CBrightnessContrast::OnSetBrightness( WPARAM wParam, LPARAM lParam)
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{
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::OnSetBrightness")));
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SetBrightness(static_cast<BYTE>(lParam));
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return 0;
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}
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LRESULT CBrightnessContrast::OnSetContrast( WPARAM wParam, LPARAM lParam)
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{
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::OnSetContrast")));
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SetContrast(static_cast<BYTE>(lParam));
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return 0;
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}
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LRESULT CBrightnessContrast::OnSetIntent( WPARAM wParam, LPARAM lParam)
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{
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::OnSetIntent")));
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SetIntent(static_cast<int>(lParam));
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return 0;
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}
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LRESULT CBrightnessContrast::OnLoadBitmap( WPARAM wParam, LPARAM lParam )
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{
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::OnLoadBitmap")));
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int nId = static_cast<int>(wParam);
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if (nId < NUMPREVIEWIMAGES && nId >= 0)
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{
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if (m_PreviewBitmaps[nId])
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{
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DeleteObject(m_PreviewBitmaps[nId]);
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m_PreviewBitmaps[nId] = NULL;
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}
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m_PreviewBitmaps[nId] = reinterpret_cast<HBITMAP>(lParam);
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}
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return 0;
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}
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LRESULT CBrightnessContrast::OnEnable( WPARAM wParam, LPARAM )
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{
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//
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// Update the control's appearance when we are enabled or disabled
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//
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WIA_PUSH_FUNCTION((TEXT("CBrightnessContrast::OnEnable")));
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if (wParam)
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{
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ApplySettings();
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}
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return 0;
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}
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LRESULT CALLBACK CBrightnessContrast::WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
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{
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SC_BEGIN_MESSAGE_HANDLERS(CBrightnessContrast)
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{
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SC_HANDLE_MESSAGE( WM_CREATE, OnCreate );
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SC_HANDLE_MESSAGE( WM_ENABLE, OnEnable );
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SC_HANDLE_MESSAGE( WM_PAINT, OnPaint );
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SC_HANDLE_MESSAGE( BCPWM_SETBRIGHTNESS, OnSetBrightness );
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SC_HANDLE_MESSAGE( BCPWM_SETCONTRAST, OnSetContrast );
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SC_HANDLE_MESSAGE( BCPWM_SETINTENT, OnSetIntent);
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SC_HANDLE_MESSAGE( BCPWM_LOADIMAGE, OnLoadBitmap);
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}
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SC_END_MESSAGE_HANDLERS();
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}
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