📄 effect.h
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//////////////////////////////////////////////////////////////////
// //
// 用途 : 32 位 DIB 特效处理 //
// 创建 : [Foolish] / 2001-4-14 //
// 更新 : 2002-11-6 //
// 主页 : http://crazybit.topcities.com/ //
// 邮箱 : crazybit@263.net //
// (c) 1999 - 2002 =USTC= 付黎 //
//////////////////////////////////////////////////////////////////
#ifndef __FOO_DIBEFFECT_H__
#define __FOO_DIBEFFECT_H__
#include "Pic.h"
#include <list>
#pragma once
using namespace std ;
//====================================================================
// DIB效果
//====================================================================
/************************************************************************/
/* 1 . 所有函数如非特别指明则只对 32 位色有效, 必须先ConvertTo32Bit. */
/* 2 . 对于rect, 右和下边界与图形学里一样为开区间 (即不包含) */
/* 如选全图为: (0, 0, 800, 600) 而不是 (0, 0, 799, 599) */
/* 3 . 打开一幅新图像前要调用->ClearAllList () ; */
/* 4 . 如果注明 : (支持 AUTO-Undo/Redo) */
/* 则当m_UndoFlag == true时, 函数自动保存当前DIB */
/************************************************************************/
class FCDibEffect : public FCDib
{
public :
FCDibEffect (bool bUndo = false) ;
FCDibEffect (FCDibEffect & dib) ;
virtual ~FCDibEffect () ;
void AddToUndoList () ; // 把(*this即当前DIB)加入Undo List
void ClearAllList () ; // 清空Undo/Redo队列
void operator= (const FCDibEffect & pic) ;
void Undo () ; // 撤销一步操作
void Redo () ; // 重作一步操作
bool IsUndoEnable () ;
bool IsRedoEnable () ;
BOOL GetUndoFlag () ;
void SetUndoEnable (bool bEnable = false) ; // 自动Undo/Redo
public :
// Region selection support
void SetRectRgn (int nLeft, int nTop, int nRight, int nBottom) ;
void SetRoundRectRgn (int nLeft, int nTop, int nRight, int nBottom, int nWidthEllipse, int nHeightEllipse) ;
void SetEllipticRgn (int nLeft, int nTop, int nRight, int nBottom) ;
void SetPolygonRgn (POINT * ppt, int cNumPoint, int nFillMode = ALTERNATE) ;
bool HasSelection () ;
bool IsInSelection (int x, int y) ;
void GetBoundBox (RECT * rect) ;
void ClearSelection () ;
// 平移变换, 用边界色填充空白区域 (AUTO-Undo/Redo)
void operator << (int iWidth) ;
void operator >> (int iWidth) ;
void ShiftUp (int iHeight) ;
void ShiftDown (int iHeight) ;
void ColShiftUp (int iCol, int iHeight) ; // 列上移
void ColShiftDown (int iCol, int iHeight) ; // 列下移
// 特效处理 (支持 AUTO-Undo/Redo)
// 加/减边框 (用黑色填充边框)(全图)
void AddFrame (int iLeft, int iTop, int iRight, int iBottom) ;
void EraseFrame (int iLeft, int iTop, int iRight, int iBottom) ;
void DuplicateFrame (int iLeft, int iTop, int iRight, int iBottom) ;
// 上下翻转
void Flip () ;
// 左右镜像
void Mirror () ;
// 顺时针旋转 90' (全图)
void Rotate90 () ;
// 顺时针旋转 270' (全图)
void Rotate270 () ;
// 顺时针旋转给定角度 (全图) iAngle在[1..89]
void Rotate (int iAngle) ;
// iType == TRUE 为宽高成比例缩放 (全图)
void Stretch (DWORD dwWidth, DWORD dwHeight, int iType = TRUE) ;
// 调节RGB值
void AdjustRGB (int iValueR, int iValueG, int iValueB) ;
// 亮度 bFlag == TRUE, 则iValue为按增量
// bFlag == FALSE, 则iValue为按百分比, 如150 (means 150%)
void AdjustBrightness (int iValue, BOOL bFlag = TRUE) ;
void AdjustBrightnessPixel (int x, int y, int iValue, BOOL bFlag = TRUE) ;
// 对比度 (iPercent为按百分比的增量)
void AdjustContrast (int iPercent) ;
void AdjustContrastPixel (int x, int y, int iPercent) ;
// 色调
void AdjustHue (int iPercent) ;
// 饱和度
void AdjustSaturation (int iPercent) ;
// 色调 && 饱和度
void AdjustHS (int iPercentHue, int iPercentSat) ;
// 颜色反转
void Negate () ;
// 浮雕效果
void Emboss (int nStep = 2, int nDirection = DIRECT_RIGHT) ;
// 风化效果
// nStep 为移动象素 : [1..x]
// nDirection 为风化方向
void Windy (int nStep, int nDirection = DIRECT_RIGHT, bool bSmooth = true) ;
void WindySoftLine (int nLine, int nStep, int nDirection = DIRECT_RIGHT) ;
// 模糊效果, 使用平均算法
// iBlockLen为小方块边长, 在[2..32]
void SmoothAverage (int iBlockLen) ;
void SmoothAverageNoEdge (int iBlockLen) ;
// 锐化效果
void Sharp (int nStep = 1) ;
// 马赛克效果
// iBlockLen为小方块边长 ( >=2 )
void Mosaic (int iBlockLen) ;
// 玻璃效果 (飞溅)
// iBlockLen为小方块边长, 在[2..100]
void Glass (int iBlockLen) ;
// 球化效果
void Sphere () ;
// 柱面效果
void Column () ;
// 锥
void ConeSunken (int iHeight) ;
// 带状效果 (iSwing : 振幅[0..100] iFrequency : 频率)
void Stripe (int iSwing, int iFrequency) ;
// 卷积运算, iElement从矩阵左上角开始, iLength为矩阵宽度
void ConvoluteDIB (int * iElement, int iLength, int iDivisor) ;
void ConvoluteDIBNoEdge (int * iElement, int iLength, int iDivisor) ;
// 基于卷积的特效算法
void Algorithm (int iAlgorithm) ; // iAlgorithm见StdDefine.h
protected :
void ClearRedoList () ;
void ClearUndoList () ;
void __CopyCol (FCDib & dibDest, int iColD, const FCDib & dibSrc, int iCol) ; // 列copy
void __BltBlock (const FCDib & Dib, int x, int y) ; // Cover block on current DIB, only the region specified by m_hSelRgn
void __CopyPalette (const FCDib & DibSrc) ;
void __SetPixelData (BYTE * pDest, int x, BYTE * pSrc) ;
protected :
BOOL m_UndoFlag ; // 是否支持Undo/Redo
RECT m_SelRect ; // 区域的外围矩形
HRGN m_hSelRgn ; // 选择区域
list<FCDib *> m_UndoList, m_RedoList ; // Undo/Redo队列 "注意 : 如果把FCDib *改为FCDibEffect *, 要修改operate = "
} ;
//===================================================================
// Implement
//===================================================================
inline void FCDibEffect::SetUndoEnable (bool bEnable) {
m_UndoFlag = bEnable ;
}
inline bool FCDibEffect::IsRedoEnable () {
return !m_RedoList.empty () ;
}
inline bool FCDibEffect::IsUndoEnable () {
return !m_UndoList.empty () ;
}
inline BOOL FCDibEffect::GetUndoFlag () {
return m_UndoFlag ;
}
inline void FCDibEffect::AdjustBrightnessPixel (int x, int y, int iPercent, BOOL bFlag) {
RGBQUAD * pPixel = (RGBQUAD *) this->GetBits (x, y) ;
if (!bFlag)
iPercent = 128 * iPercent / 100 ; // 转换成x/128
pPixel->rgbBlue = max (min (bFlag ? (pPixel->rgbBlue + iPercent)
: (pPixel->rgbBlue * iPercent / 128), 255), 0) ;
pPixel->rgbGreen = max (min (bFlag ? (pPixel->rgbGreen + iPercent)
: (pPixel->rgbGreen * iPercent / 128), 255), 0) ;
pPixel->rgbRed = max (min (bFlag ? (pPixel->rgbRed + iPercent)
: (pPixel->rgbRed * iPercent / 128), 255), 0) ;
}
inline void FCDibEffect::AdjustContrastPixel (int x, int y, int iPercent) {
RGBQUAD * pPixel = (RGBQUAD *)this->GetBits (x, y) ;
iPercent = 128 * iPercent / 100 ; // 转换成x/128
pPixel->rgbBlue = max (min (128 + (pPixel->rgbBlue - 128) * iPercent / 128, 255), 0) ;
pPixel->rgbGreen = max (min (128 + (pPixel->rgbGreen - 128) * iPercent / 128, 255), 0) ;
pPixel->rgbRed = max (min (128 + (pPixel->rgbRed - 128) * iPercent / 128, 255), 0) ;
}
inline void FCDibEffect::AdjustHue (int iPercent) {
this->AdjustHS (iPercent, 100) ;
}
inline void FCDibEffect::AdjustSaturation (int iPercent) {
this->AdjustHS (100, iPercent) ;
}
inline void FCDibEffect::__CopyCol (FCDib & dibDt, int iColD, const FCDib & dibSr, int iCol) {
BYTE * pDest = dibDt.GetBits (iColD, 0),
* pSrc = dibSr.GetBits (iCol, 0) ;
int nSpan = dibDt.ColorBits() / 8 ; // 每象素字节数2, 3, 4
DWORD dwOldPitch = dibSr.GetPitch (),
dwPitch = dibDt.GetPitch () ;
for (int y=0 ; y < dibDt.Height() ; y++, pDest -= dwPitch, pSrc -= dwOldPitch)
CopyMemory (pDest, pSrc, nSpan) ;
}
inline void FCDibEffect::__CopyPalette (const FCDib & DibSrc) {
if (this->ColorBits () <= 8) {
RGBQUAD pPalette[0x100] ;
DibSrc.GetColorTable (0, 1 << ColorBits(), pPalette) ;
this->SetColorTable (0, 1 << ColorBits(), pPalette) ;
}
}
__forceinline void FCDibEffect::__SetPixelData (BYTE * pDest, int x, BYTE * pSrc) {
switch (this->ColorBits())
{
case 8 : *(pDest + x) = *pSrc ; break ;
case 16 : CopyMemory ((WORD *)pDest + x, pSrc, 2) ; break ;
case 24 : CopyMemory ((RGBTRIPLE *)pDest + x, pSrc, 3) ; break ;
case 32 : CopyMemory ((DWORD *)pDest + x, pSrc, 4) ; break ;
}
}
inline void FCDibEffect::ColShiftUp (int iCol, int iHeight) {
if ((this->ColorBits() >= 8) && (iCol > 0) && (iCol < this->Width()) && (iHeight > 0) && (iHeight < this->Height()))
{
BYTE * pSrc = this->GetBits (iCol, iHeight),
* pDest = this->GetBits (iCol, 0) ;
int iMax = Height() - iHeight,
nSpan = this->ColorBits() / 8 ;
DWORD dwPitch = this->GetPitch () ;
for (int i=0 ; i < iMax ; i++, pSrc -= dwPitch, pDest -= dwPitch)
CopyMemory (pDest, pSrc, nSpan) ;
for (int m=0 ; m < iHeight ; m++, pDest -= dwPitch)
FillMemory (pDest, nSpan, 0xFF) ; // 填充白色
}
}
inline void FCDibEffect::ColShiftDown (int iCol, int iHeight) {
if ((this->ColorBits() >= 8) && (iCol > 0) && (iCol < this->Width()) && (iHeight > 0) && (iHeight < this->Height()))
{
BYTE * pSrc = this->GetBits (iCol, Height() - 1 - iHeight),
* pDest = this->GetBits (iCol, Height() - 1) ;
int iMax = Height() - iHeight,
nSpan = this->ColorBits() / 8 ;
DWORD dwPitch = this->GetPitch () ;
for (int i=0 ; i < iMax ; i++, pSrc += dwPitch, pDest += dwPitch)
CopyMemory (pDest, pSrc, nSpan) ;
for (int m=0 ; m < iHeight ; m++, pDest += dwPitch)
FillMemory (pDest, nSpan, 0xFF) ; // 填充白色
}
}
inline void FCDibEffect::SetEllipticRgn (int nLeft, int nTop, int nRight, int nBottom) {
this->ClearSelection () ;
m_hSelRgn = ::CreateEllipticRgn (nLeft, nTop, nRight+1, nBottom+1) ;
::GetRgnBox (m_hSelRgn, &m_SelRect) ;
}
inline void FCDibEffect::SetRoundRectRgn (int nLeft, int nTop, int nRight, int nBottom, int nWidthEllipse, int nHeightEllipse) {
this->ClearSelection () ;
m_hSelRgn = ::CreateRoundRectRgn (nLeft, nTop, nRight+1, nBottom+1, nWidthEllipse, nHeightEllipse) ;
::GetRgnBox (m_hSelRgn, &m_SelRect) ;
}
inline void FCDibEffect::SetRectRgn (int nLeft, int nTop, int nRight, int nBottom) {
this->ClearSelection () ;
m_hSelRgn = ::CreateRectRgn (nLeft, nTop, nRight, nBottom) ;
::GetRgnBox (m_hSelRgn, &m_SelRect) ;
}
inline void FCDibEffect::SetPolygonRgn (POINT * ppt, int cNumPoint, int nFillMode) {
if (ppt != NULL) {
this->ClearSelection () ;
m_hSelRgn = ::CreatePolygonRgn (ppt, cNumPoint, nFillMode) ;
::GetRgnBox (m_hSelRgn, &m_SelRect) ;
}
}
inline void FCDibEffect::GetBoundBox (RECT * rect) {
if (rect != NULL)
::CopyRect (rect, &m_SelRect) ;
}
inline bool FCDibEffect::HasSelection () {
return (m_hSelRgn != NULL) ;
}
inline bool FCDibEffect::IsInSelection (int x, int y) {
return (::PtInRegion (m_hSelRgn, x, y) != 0) ;
}
inline void FCDibEffect::ClearSelection () {
if (HasSelection ())
::DeleteObject (m_hSelRgn) ;
m_hSelRgn = NULL ;
::SetRectEmpty (&m_SelRect) ;
}
#endif⌨️ 快捷键说明
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