353 lines
11 KiB
C++
353 lines
11 KiB
C++
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/********************************************************************
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created: 2005/06/03
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created: 03:06:2005 11:27
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filename: x:\Software\Mfc\Source\Controls\Buttons\RoundButtonStyle.cpp
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file path: x:\Software\Mfc\Source\Controls\Buttons
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file base: RoundButtonStyle
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file ext: cpp
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author: Markus Zocholl
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purpose: CRoundButtonStyle manages the Style of CRoundButton, a
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Button-Control with round Design.
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Because the generation of the Button-Images is time consuming
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this is only done once in the Style-Class, and all Buttons
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associated with this class take the same Images.
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*********************************************************************/
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#include "StdAfx.h"
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#include "math.h"
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#include ".\roundbuttonstyle.h"
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#ifdef _DEBUG
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#define new DEBUG_NEW
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#undef THIS_FILE
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static char THIS_FILE[] = __FILE__;
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#endif
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/************************************************************************/
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/* Construction / Destruction */
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/************************************************************************/
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//! Constructor
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CRoundButtonStyle::CRoundButtonStyle(void)
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: m_bButtonDrawn(false)
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{
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// No Image => No Size
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m_tBtnSize = CSize(0, 0);
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// Set Standard-AntiAliasing-Zone
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m_tButtonStyle.m_dSizeAA = 2.0;
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// Set Standard-Position of HighLight
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m_tButtonStyle.m_dHighLightX = 0.0;
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m_tButtonStyle.m_dHighLightY = -7.0;
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// Set Radii of Edges
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m_tButtonStyle.m_dRadius = 10.0;
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m_tButtonStyle.m_dBorderRatio = 0.2;
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// Modified by ritoseo
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m_tButtonStyle.m_dRadius = 8.0;
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m_tButtonStyle.m_dBorderRatio = 0.1;
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// Set Heights of Button
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m_tButtonStyle.m_dHeightBorder = 0.5;
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m_tButtonStyle.m_dHeightButton = 0.5;
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// Modified by ritoseo
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m_tButtonStyle.m_dHeightBorder = 0.1;
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m_tButtonStyle.m_dHeightButton = 0.1;
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// Set Data of Highlight
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m_tButtonStyle.m_dRadiusHighLight = 7.0;
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m_tButtonStyle.m_dPowerHighLight = 0.4;
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// Set Colors for different States
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m_tButtonStyle.m_tColorBack.m_tDisabled = GetSysColor(COLOR_3DFACE);
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m_tButtonStyle.m_tColorBorder.m_tDisabled = RGB(128, 128, 128);
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m_tButtonStyle.m_tColorFace.m_tDisabled = RGB(128, 128, 128);
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m_tButtonStyle.m_tColorBack.m_tEnabled = GetSysColor(COLOR_3DFACE);
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m_tButtonStyle.m_tColorBorder.m_tEnabled = RGB(164, 128, 128);
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m_tButtonStyle.m_tColorFace.m_tEnabled = RGB(164, 164, 164);
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// Modified by ritoseo
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m_tButtonStyle.m_tColorBorder.m_tEnabled = RGB(164 + 10, 164 + 10, 164 + 10);
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m_tButtonStyle.m_tColorFace.m_tEnabled = RGB(164 + 10, 164 + 10, 164 + 10);
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m_tButtonStyle.m_tColorBack.m_tClicked = GetSysColor(COLOR_3DFACE);
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m_tButtonStyle.m_tColorBorder.m_tClicked = RGB(255, 255, 0);
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m_tButtonStyle.m_tColorFace.m_tClicked = RGB(164, 164, 164);
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m_tButtonStyle.m_tColorBack.m_tPressed = GetSysColor(COLOR_3DFACE);
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m_tButtonStyle.m_tColorBorder.m_tPressed = RGB(164, 128, 128);
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m_tButtonStyle.m_tColorFace.m_tPressed = RGB( 64, 64, 64);
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m_tButtonStyle.m_tColorBack.m_tHot = GetSysColor(COLOR_3DFACE);
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m_tButtonStyle.m_tColorBorder.m_tHot = RGB(164, 128, 128);
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m_tButtonStyle.m_tColorFace.m_tHot = RGB(192, 192, 192);
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}
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//! Destructor
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CRoundButtonStyle::~CRoundButtonStyle(void)
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{
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}
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/************************************************************************/
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/* Access to Button-Style */
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/************************************************************************/
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// Get current set Button-Style
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bool CRoundButtonStyle::GetButtonStyle(tButtonStyle* _ptButtonStyle)
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{
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// Check, if Pointer to a Button-Style-Struct is given
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if (_ptButtonStyle == NULL)
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return false;
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// Copy Style to given Struct
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memcpy(_ptButtonStyle, &m_tButtonStyle, sizeof(tButtonStyle));
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// All done
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return true;
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}
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// Set Style of Button to new value
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bool CRoundButtonStyle::SetButtonStyle(tButtonStyle* _ptButtonStyle)
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{
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// Check, if new Button-Style is given
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if (_ptButtonStyle == NULL)
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return false;
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// Copy new Style to Construct
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memcpy(&m_tButtonStyle, _ptButtonStyle, sizeof(tButtonStyle));
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// Set Flag to redraw Buttons
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m_bButtonDrawn = false;
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// All done
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return true;
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}
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/************************************************************************/
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/* Request for graphical objects */
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/************************************************************************/
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// Get Pointer to Bitmap containing Edges of Button-Face
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CBitmap* CRoundButtonStyle::GetButtonEdge(CDC* _pDC)
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{
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// Check, if Button needs to be redrawn
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if (!m_bButtonDrawn)
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{
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// Draw Masks of Button
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DrawMasks(_pDC);
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m_bButtonDrawn = true;
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}
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// Return Pointer to Bitmap
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return &m_tBmpButtonEdge;
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}
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/************************************************************************/
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/* Drawing-Routines */
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/************************************************************************/
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// Draw all Masks of Button
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bool CRoundButtonStyle::DrawMasks(CDC* _pDC)
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{
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CDC MemDC;
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// Create DC in Memory
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if (MemDC.CreateCompatibleDC(_pDC) == FALSE)
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return false;
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/************************************************************************/
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/* Generate Variables */
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/************************************************************************/
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// Distance from Center of Button
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double fDistCenter = 0.0;
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// Distance from Highlight-Center
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double fDistHigh = 0.0;
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// X-Position of Highlight
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double fXHigh;
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// Y-Position of Highlight
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double fYHigh;
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// Color-Factor of Background-Color
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double fFacBack = 0.0;
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// Color-Factor of Border-Color
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double fFacBorder = 0.0;
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// Color-Factor of Button-Face-Color
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double fFacFace = 0.0;
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// Color-Factor of Highlight-Color
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double fFacHigh = 0.0;
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// Color-Factor Red
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double fFacR;
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// Color-Factor Green
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double fFacG;
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// Color-Factor Blue
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double fFacB;
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// Color of actual Pixel
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COLORREF tColPixel;
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// Size of Anti-Aliasing-Region
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double fSizeAA;
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// Radius of Outer Rim (between Border and Nirvana)
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double fRadOuter;
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// Radius of Inner Rim (between Button-Face and Border)
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double fRadInner;
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// Ratio of Border
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double fRatioBorder;
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// Height of Border
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double fHeightBorder;
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// Height of Button-Face
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double fHeightButton;
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// Radius of Highlight
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double fRadHigh;
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// Power of Highlight
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double fPowHigh;
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// Size of single Edge
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int nSizeEdge = 0;
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/************************************************************************/
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/* Load Infos of Style */
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/************************************************************************/
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// Load Position of HighLight
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fSizeAA = m_tButtonStyle.m_dSizeAA;
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fXHigh = m_tButtonStyle.m_dHighLightX;
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fYHigh = m_tButtonStyle.m_dHighLightY;
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fRadOuter = m_tButtonStyle.m_dRadius;
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fRatioBorder = m_tButtonStyle.m_dBorderRatio;
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fHeightBorder = m_tButtonStyle.m_dHeightBorder;
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fHeightButton = m_tButtonStyle.m_dHeightButton;
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fRadHigh = m_tButtonStyle.m_dRadiusHighLight;
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fPowHigh = m_tButtonStyle.m_dPowerHighLight;
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// Calculate Radius of Inner Border
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fRadInner = __min(fRadOuter, __max(0.0f, fRadOuter * (1.0f - fRatioBorder)));
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// Calculate Size of an Edge
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nSizeEdge = (int)ceil(fRadOuter + fSizeAA / 2.0);
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// Store Size of Mask in global var
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m_tBtnSize.SetSize(nSizeEdge, nSizeEdge);
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// Delete old Bitmap, if present
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if (m_tBmpButtonEdge.m_hObject != NULL)
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m_tBmpButtonEdge.DeleteObject();
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// Generate new Bitmap
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m_tBmpButtonEdge.CreateCompatibleBitmap(
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_pDC,
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2 * nSizeEdge + 1,
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(2 * nSizeEdge + 1) * BS_LAST_STATE);
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// Select Bitmap of Button-Edge into DC
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HGDIOBJ hOldBmp = MemDC.SelectObject(m_tBmpButtonEdge);
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// Draw Button-Edge
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int nX;
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int nY;
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int nState;
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COLORREF tColorBack;
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COLORREF tColorBorder;
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COLORREF tColorFace;
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for (nX = -nSizeEdge; nX <= nSizeEdge; nX++)
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{
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for (nY = -nSizeEdge; nY <= nSizeEdge; nY++)
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{
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// Calculate Distance of Point from Center of Button
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fDistCenter = sqrt((double)nX * (double)nX + (double)nY * (double)nY);
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// Calculate factor of Background
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fFacBack = __max(0.0, __min(1.0, 0.5 + (fDistCenter - fRadOuter) * 2.0 / fSizeAA));
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// Calculate Factor for Border
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fFacBorder = 1.0 - fHeightBorder * pow((fRadOuter + fRadInner - fDistCenter * 2.0) / (fRadOuter - fRadInner) ,2);
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fFacBorder = __max(0.0, __min(1.0, 0.5 - (fDistCenter - fRadOuter) * 2.0 / fSizeAA)) * fFacBorder;
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fFacBorder = __max(0.0, __min(1.0, 0.5 + (fDistCenter - fRadInner) * 2.0 / fSizeAA)) * fFacBorder;
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for (nState = 0; nState < BS_LAST_STATE; nState++)
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{
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// Get Colors of State
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switch(nState)
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{
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case BS_ENABLED:
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tColorBack = m_tButtonStyle.m_tColorBack.m_tEnabled;
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tColorBorder = m_tButtonStyle.m_tColorBorder.m_tEnabled;
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tColorFace = m_tButtonStyle.m_tColorFace.m_tEnabled;
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break;
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case BS_CLICKED:
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tColorBack = m_tButtonStyle.m_tColorBack.m_tClicked;
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tColorBorder = m_tButtonStyle.m_tColorBorder.m_tClicked;
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tColorFace = m_tButtonStyle.m_tColorFace.m_tClicked;
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break;
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case BS_PRESSED:
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tColorBack = m_tButtonStyle.m_tColorBack.m_tPressed;
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tColorBorder = m_tButtonStyle.m_tColorBorder.m_tPressed;
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tColorFace = m_tButtonStyle.m_tColorFace.m_tPressed;
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break;
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case BS_HOT:
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tColorBack = m_tButtonStyle.m_tColorBack.m_tHot;
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tColorBorder = m_tButtonStyle.m_tColorBorder.m_tHot;
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tColorFace = m_tButtonStyle.m_tColorFace.m_tHot;
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break;
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case BS_DISABLED:
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default:
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tColorBack = m_tButtonStyle.m_tColorBack.m_tDisabled;
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tColorBorder = m_tButtonStyle.m_tColorBorder.m_tDisabled;
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tColorFace = m_tButtonStyle.m_tColorFace.m_tDisabled;
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break;
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}
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// Calculate Distance of Point from Highlight of Button
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fDistHigh = sqrt(((double)nX - fXHigh) * ((double)nX - fXHigh) + ((double)nY - fYHigh) * ((double)nY - fYHigh));
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// Calculate Factor of Inner Surface
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if (fHeightButton > 0)
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fFacFace = 1.0 - fHeightButton * (fDistCenter / fRadInner) * (fDistCenter / fRadInner);
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else
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fFacFace = 1.0 + fHeightButton - fHeightButton * (fDistCenter / fRadInner) * (fDistCenter / fRadInner);
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fFacFace = __max(0.0, __min(1.0, 0.5 - (fDistCenter - fRadInner) * 2.0 / fSizeAA)) * fFacFace;
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// Calculate Factor of Highlight
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fFacHigh = 1.0 + __max(-1.0, __min(1.0, 1.0 - fHeightButton * fDistHigh / fRadHigh)) * fPowHigh;
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fFacFace = fFacFace * fFacHigh;
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// Calculate Color-Factors
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fFacR =
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(float)GetRValue(tColorBack) * fFacBack +
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(float)GetRValue(tColorBorder) * fFacBorder +
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(float)GetRValue(tColorFace) * fFacFace;
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fFacG =
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(float)GetGValue(tColorBack) * fFacBack +
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(float)GetGValue(tColorBorder) * fFacBorder +
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(float)GetGValue(tColorFace) * fFacFace;
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fFacB =
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(float)GetBValue(tColorBack) * fFacBack +
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(float)GetBValue(tColorBorder) * fFacBorder +
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(float)GetBValue(tColorFace) * fFacFace;
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// Calculate actual Color of Pixel
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tColPixel = RGB(
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__max(0, __min(255, (int)fFacR)),
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__max(0, __min(255, (int)fFacG)),
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__max(0, __min(255, (int)fFacB))
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);
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// Draw Pixels
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MemDC.SetPixel(nSizeEdge + nX, nSizeEdge + nY + (2 * nSizeEdge + 1) * nState, tColPixel);
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}
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}
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}
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// Select Old Bitmap into DC
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MemDC.SelectObject(hOldBmp);
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return true;
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}
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