checkbox.cpp

3D游戏展示程序

//--------------------------------------------------
//  Desc: CheckBox & RadioBox
//  Author: artsylee/2006.11.17
//--------------------------------------------------
#include "../stdafx.h"
#include "CheckBox.h"
#include "../Core/Common.h"
#include "../Core/Input.h"
#include "../Core/IniFile.h"
#include "../Core/Graphics.h"
#include "../Core/TextureManager.h"
#include "../Core/Message.h"

CCheckBox::CCheckBox(CWindow* pParent):CWindow(pParent)
{
	m_dwGUIType = GUI_CHECKBOX;
	m_State = CHECK_NORMAL;
	m_StateNum = FOURSTATE;
	m_bSelect = false;
	m_bDependent = false;
}

CCheckBox::~CCheckBox()
{
}

bool CCheckBox::LoadFromIni(char* pfilename, char* pIndex)
{
	CIniFile ui(pfilename);
	m_dwID = ui.ReadDWORD(pIndex, "ID");
	m_ptPos = ui.ReadPoint(pIndex, "Position");
	m_rcSrc = ui.ReadRect(pIndex, "SrcRect");
	m_dwColor = ui.ReadDWORD(pIndex, "Color", 0xffffffff);
	m_dwAttrib = ui.ReadDWORD(pIndex, "Attrib", 10);
	m_bUseRgn = ui.ReadBOOL(pIndex, "UseRGN", m_bUseRgn);

	ui.ReadString(pIndex, "File", m_szUIPath);
	DWORD index = ui.ReadDWORD(pIndex, "Picture");
	if(ui.IsReadSucceed())
	{
		m_hTexture = g_pTextureManager->LoadAMFTexture(m_szUIPath, index);
		GRect zeroRc(0, 0, 0, 0);
		if(m_rcSrc==zeroRc)
		{
			CTexture * ptex = g_pTextureManager->GetTexture(m_hTexture);
			if(ptex)
			{
				m_rcSrc.SetRect(0, 0, ptex->GetWidth(), ptex->GetHeight());
			}
		}
	}
	m_StateNum = ui.ReadInt(pIndex, "StateNum", m_StateNum);
	for(int i=0; i<CHECK_STATENUM*2; i++)
	{
		m_DstRect[i].SetRectWH(0, i*(m_rcSrc.Height()/m_StateNum), m_rcSrc.Width(), m_rcSrc.Height()/m_StateNum);
	}
	m_Width = m_DstRect[CHECK_NORMAL].Width();
	m_Height = m_DstRect[CHECK_NORMAL].Height();
	if(m_hTexture && m_bUseRgn)
	{
		CreateRGN(&m_DstRect[CHECK_NORMAL]);
	}
	if(m_pParent)
	{
		OffSet(m_pParent->GetRect().left, m_pParent->GetRect().top);
	}
	if(m_dwAttrib & GUI_ENABLE)
	{
		m_State = CHECK_NORMAL;
	}
	else if(m_StateNum>=SIXSTATE)
	{
		m_State = CHECK_DISABLE;
	}
	return true;
}

void CCheckBox::Render()
{
	if(m_dwAttrib & GUI_VISIBLE)
	{
		g_pGraphics->RenderSprite(m_hTexture, m_ptPos.x, m_ptPos.y, &m_DstRect[m_State*2+m_bSelect], m_dwColor);
	}
}

DWORD CCheckBox::ProcessEvent()
{
	if(!(m_dwAttrib & GUI_VISIBLE) || !(m_dwAttrib & GUI_ENABLE) || m_hTexture==INVALID_HANDLE)
	{
		return INVALID_ID;
	}
	GRect rcPos;
	rcPos.SetRectWH(m_ptPos.x, m_ptPos.y, m_Width, m_Height);
	if(CheckInRGN(rcPos))
	{
		if(m_State!=CHECK_HIGHLIGHT && m_StateNum>=FOURSTATE)
		{
			//发送Mouseon信息
			CMessage msg(MSG_SYS_GUI, m_dwID);
			msg.SetParameter(GUI_MOUSE_OVER, m_bSelect, this);
			PostMessage(msg);

			m_State = CHECK_HIGHLIGHT;
		}

		if(g_stInputInfo.MouseValue==LB_DOWN)
		{
			if(!m_bDependent)
			{
				m_bSelect = !m_bSelect;
				//发送MOUSEDOWN信息
				CMessage msg(MSG_SYS_GUI, m_dwID);
				msg.SetParameter(GUI_VALUE_CHANGE, m_bSelect, this);
				PostMessage(msg);
			}
			else if(!m_bSelect)
			{
				m_bSelect = true;
				// 复选框无需发送LBUTTON_DOWN信息
			}

			return m_dwID;
		}
	}
	else
	{
		if(m_State!=CHECK_NORMAL)
		{
			//发送MouseLOST信息
			CMessage msg(MSG_SYS_GUI, m_dwID);
			msg.SetParameter(GUI_LOST_FOCUS, m_bSelect, this);
			PostMessage(msg);

			m_State = CHECK_NORMAL;
		}
		return INVALID_ID;
	}
	return INVALID_ID;
}

void CCheckBox::SetSelect(bool c /* = true */)
{		
	if(c != m_bSelect && !m_bDependent)
	{
		//发送MOUSEDOWN信息
		CMessage msg(MSG_SYS_GUI, m_dwID);
		msg.SetParameter(GUI_VALUE_CHANGE, c, this);
		PostMessage(msg);
	}	
	m_bSelect = c;
};

void  CCheckBox::Enable()
{
	if(!(m_dwAttrib & GUI_ENABLE))
	{
		m_State = CHECK_NORMAL;
		m_dwAttrib |= GUI_ENABLE;
	}
}

void  CCheckBox::Disable()
{
	if(m_dwAttrib & GUI_ENABLE)
	{
		m_dwAttrib &= ~GUI_ENABLE;
	}
	if(m_StateNum>=SIXSTATE)
	{
		m_State = CHECK_DISABLE;
	}
}