gdialog.cpp

一个简单而又高效的嵌入式操作系统.包括GUI及文件系统.仿Windows设计,类似于MFC风格

// GDialog.cpp: implementation of the GDialog class.
//
//////////////////////////////////////////////////////////////////////

#include "..\stdafx.h"
#include "GDialog.h"


//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////

GDialog::GDialog()
{
	m_pOldFocus=NULL;
	m_nBackColor=RGB(192,192,192)|EdgeRGB(255,255,255);
	m_nForeColor=RGB(0,0,0);
	m_nStyle=WS_CAPTION|WS_SYSMENU;
	m_pFont=&GUI_DEFAULTFONT;
	m_nState=0;
}

GDialog::~GDialog()
{
	
}

//消息处理函数
void GDialog::WndProc(int nMessage, int wParam, int lParam)
{
	switch(nMessage)
	{
	case WM_PAINT:
		if(wParam & ~ODA_CLIENT)OnNcPaint();
		if(wParam & ODA_CLIENT){OnPaint();DrawControls();}
		break;
	case WM_MOVE:
		OnMove();
		break;
	case WM_CREATE:
		OnCreate();
	case WM_COMMAND:
		m_nDlgResult=wParam;
		break;
	case WM_LBUTTONDOWN:
	case WM_LBUTTONUP:
	{
		RECT r;
		r.top=m_rectWnd.top;
		r.bottom=m_Rect.top;
		r.right=m_rectWnd.right;
		r.left=r.right-(r.bottom-r.top)-4;
		if(nMessage==WM_LBUTTONDOWN)
		{
			if(PtInRect(wParam,lParam,r))
			{
				m_nState |= ODS_GRAYED;
				PostMessage(WM_PAINT,ODA_FOCUS,-1);
			}
		}
		else
		{
			if(m_nState & ODS_GRAYED)
			{
				m_nState &= ~ODS_GRAYED;
				PostMessage(WM_PAINT,ODA_FOCUS,-1);
				if(PtInRect(wParam,lParam,r))
				{
					if(m_nStyle & WS_SYSMENU)m_nDlgResult=-1;
				}
			}
		}
		break;
	}
	default:
		break;
	}
}

void GDialog::Create()
{
	if(!m_pOldFocus)
	{
		GWnd* pWnd;
		//处理GUI
		if(m_nWndCount>0)
		{
			pWnd=m_aWnd[m_nWndCount-1];
			if(pWnd->m_pParent)pWnd=pWnd->m_pParent;
			pWnd->m_nState &= ~ODS_FOCUS;
			pWnd->PostMessage(WM_PAINT,ODA_FOCUS,-1);
		}
		if(m_pFocus)
		{
			m_pFocus->m_nState &= ~ODS_FOCUS;
			m_pFocus->PostMessage(WM_PAINT,ODA_FOCUS,-1);
			m_pOldFocus=m_pFocus;
			m_pFocus=NULL;
		}
		else m_pOldFocus=this;
		m_pParent=NULL;
		m_nWndIndex=m_nWndCount;
		m_aWnd[m_nWndCount++]=this;
		m_nStyle|=WS_VISIBLE;
		m_nState|=ODS_FOCUS;
		WndProc(WM_CREATE,0,0);
		m_nDlgResult=0;
		PostMessage(WM_PAINT,ODA_ALL,-1);
	}
}

void GDialog::Close()
{
	if(m_pOldFocus)
	{
		GWnd* pWnd;

		if(m_pOldFocus==this)m_pFocus=NULL;
		else
		{
			m_pFocus=m_pOldFocus;
			m_pFocus->m_nState |= ODS_FOCUS;
		}
		m_pOldFocus=NULL;
		while(m_nWndCount)
		{
			m_nWndCount--;
			pWnd=m_aWnd[m_nWndCount];
			pWnd->WndProc(WM_CLOSE,0,0);
			if(pWnd==this)break;
		}
		m_nStyle&=~WS_VISIBLE;
		m_nState&=~ODS_FOCUS;
		if(m_nWndCount>0)
		{
			pWnd=m_aWnd[m_nWndCount-1];
			if(pWnd->m_pParent)pWnd=pWnd->m_pParent;
			pWnd->m_nState |=ODS_FOCUS;
			pWnd->PostMessage(WM_PAINT,ODA_ALL,-1);
		}
	}
}

int GDialog::DoModal()
{
	Create();
	do
	{
		DoEvents();
		if(m_nDlgResult)WndProc(WM_CLOSE,1,0);
		else WndProc(WM_KICKIDLE,0,0);
	}while(!m_nDlgResult);
	Close();
	return m_nDlgResult;
}


void GDialog::AddControl(GWnd *pChild,LPCTSTR szText,int nStyle)
{

	if(szText)pChild->m_strText=szText;
	if(nStyle)pChild->m_nStyle=nStyle;
	pChild->m_nStyle|=WS_CHILD;
	pChild->m_pParent=this;
	pChild->m_pFont=m_pFont;
	pChild->m_nBackColor=m_nBackColor;
	pChild->m_nForeColor=m_nForeColor;
	pChild->m_nWndIndex=m_nWndCount;
	m_aWnd[m_nWndCount++]=pChild;
	pChild->WndProc(WM_CREATE,0,0);
}

void GDialog::OnNcPaint()
{
	int nBorder;
	int c=m_nForeColor;
	RECT r0=m_rectClip;
	RECT r=m_rectWnd;
	const FONT* pFont=m_pFont;
	m_pFont=&GUI_DEFAULTFONT;
	
	m_rectClip=m_rectWndClip;

	if(m_nStyle & WS_MAXIMIZE)nBorder=0;
	else if(m_nStyle & WS_FLAT)
	{
		if(m_nStyle & WS_CAPTION)
		{
			m_nForeColor=EdgeRGB(255);
			Rectangle(r);
			nBorder=1;
		}
	}
	else if(m_nStyle & WS_DLGFRAME)
	{
		DrawEdge(r,EDGE_RAISED);
		nBorder=2;
	}
	else if(m_nStyle & WS_BORDER)
	{
		Draw3dRect(r,EdgeRGB(255),EdgeRGB(64));
		nBorder=1;
	}
	if((m_nStyle & WS_CAPTION)==WS_CAPTION)
	{
		r.left=m_rectWnd.left+nBorder;
		r.right=m_rectWnd.right-nBorder;
		r.top=m_rectWnd.top+nBorder;
		r.bottom=r.top+m_pFont->nHeight+1;
		m_nForeColor=(m_nState & ODS_FOCUS)?RGB(0,0,128):RGB(128,128,128);
		FillRect(r,m_nForeColor);
		r.left+=2;
		m_nForeColor=RGB(255,255,255);
		DrawText(m_strText,r,DT_LEFT|DT_VCENTER);
		r.top+=2;r.bottom-=2;
		r.right-=2;
		r.left=r.right-(r.bottom-r.top);
		if(!(m_nStyle & WS_SYSMENU) || !(m_nState & ODS_GRAYED))Draw3dRect(r,RGB(255,255,255),RGB(64,64,64));
		else Draw3dRect(r,RGB(64,64,64),RGB(255,255,255));
		r.left+=1;r.top+=1;r.right-=1;r.bottom-=1;
		if(!(m_nStyle & WS_SYSMENU)|| !(m_nState & ODS_GRAYED))Draw3dRect(r,RGB(192,192,192),RGB(128,128,128));
		else Draw3dRect(r,RGB(128,128,128),RGB(192,192,192));
		r.left+=1;r.top+=1;r.right-=1;r.bottom-=1;
		FillRect(r,RGB(192,192,192));
		if(m_nStyle & WS_SYSMENU)
		{
			m_nForeColor=RGB(0,0,0);
			if(m_nState & ODS_GRAYED)
			{
				r.top+=1;r.left+=1;
			}
			else
			{
				r.bottom-=1;r.right-=1;
			}
			Line(r.left,r.top,r.right,r.bottom);
			Line(r.left,r.bottom,r.right,r.top);
		}
		else
		{
			m_nForeColor=RGB(128,128,128);
			Line(r.left,r.top,r.right,r.bottom);
			Line(r.left,r.bottom,r.right,r.top);
		}
	}
	if(m_nStyle& WS_CLIENT)
	{
		r=m_Rect;
		r.left-=2;r.top-=2;
		r.right+=2;r.bottom+=2;
		DrawEdge(r,EDGE_SUNKEN);
	}

	m_pFont=pFont;
	m_rectClip=r0;
	m_nForeColor=c;
}

void GDialog::OnPaint()
{
	if(m_nBackColor!=CLR_NONE)FillRect(m_Rect,m_nBackColor);
}

void GDialog::DrawControls()
{
	int i;
	for(i=m_nWndIndex+1;i<m_nWndCount;i++)
	{
		m_aWnd[i]->WndProc(WM_PAINT,ODA_ALL,-1);
	}
}

void GDialog::OnMove()
{
	int nBorder;
	if(m_nStyle & WS_MAXIMIZE)nBorder=0;
	else if(m_nStyle & WS_FLAT)nBorder=(m_nStyle & WS_CAPTION)?1:0;
	else if(m_nStyle & WS_DLGFRAME)nBorder=2;
	else if(m_nStyle & WS_BORDER)nBorder=1;
	else nBorder=0;
	m_Rect=m_rectWnd;
	if(m_nStyle & WS_CLIENT)nBorder+=2;
	m_Rect.left+=nBorder;
	m_Rect.right-=nBorder;
	m_Rect.top+=nBorder;
	m_Rect.bottom-=nBorder;
	if((m_nStyle & WS_CAPTION)==WS_CAPTION)m_Rect.top+=GUI_DEFAULTFONT.nHeight+2;
}

void GDialog::OnCreate()
{
	if(m_nStyle & WS_MAXIMIZE)
	{
		MoveWindow(0,0,GUI_CXSCREEN,GUI_CYSCREEN);
	}
	else if(m_nStyle & DS_CENTER)
	{
		RECT r;
		int w=m_rectWnd.right-m_rectWnd.left+1;
		int h=m_rectWnd.bottom-m_rectWnd.top+1;
		r.left=(GUI_CXSCREEN-w)/2;
		r.right=r.left+w-1;
		r.top=(GUI_CYSCREEN-h)/2;
		r.bottom=r.top+h-1;
		MoveWindow(r);
	}
	else MoveWindow(m_rectWnd);
}

int GDialog::MessageBox(LPCTSTR szText, LPCTSTR szCaption, int nType)
{
	GMsgBox dlg;

	if(nType & MB_FACELIKE)
	{
		dlg.m_nForeColor=m_nForeColor;
		dlg.m_nBackColor=m_nBackColor;
		dlg.m_pFont=m_pFont;
	}
	if(!szCaption)szCaption=m_strText;

	dlg.Create(szText,szCaption,nType);
	do{DoEvents();}while(!dlg.PeakButton());
	dlg.Close();
	
	return dlg.m_nDlgResult;
}