wagic/JGE/src/JGui.cpp

//-------------------------------------------------------------------------------------
//
// JGE++ is a hardware accelerated 2D game SDK for PSP/Windows.
//
// Licensed under the BSD license, see LICENSE in JGE root for details.
//
// Copyright (c) 2007 James Hui (a.k.a. Dr.Watson) <jhkhui@gmail.com>
//
//-------------------------------------------------------------------------------------

#include "../include/JGE.h"
#include "../include/JGui.h"

JGE* JGuiObject::mEngine = NULL;

JGE* JGuiController::mEngine = NULL;


JGuiObject::JGuiObject(int id): mId(id)
{
  mEngine = JGE::GetInstance();
}


JGuiObject::~JGuiObject()
{
  //	JGERelease();
}


bool JGuiObject::Leaving(u32 key __attribute__((unused)))
{
  return true;
}


bool JGuiObject::ButtonPressed()
{
  return false;
}


void JGuiObject::Entering()
{

}


int JGuiObject::GetId()
{
  return mId;
}


void JGuiObject::Update(float dt __attribute__((unused)))
{
}

ostream& operator<<(ostream &out, const JGuiObject &j)
{
  return j.toString(out);
}

JGuiController::JGuiController(int id, JGuiListener* listener) : mId(id), mListener(listener)
{
  mEngine = JGE::GetInstance();

  mBg = NULL;
  mShadingBg = NULL;

  mCount = 0;
  mCurr = 0;

  mCursorX = SCREEN_WIDTH/2;
  mCursorY = SCREEN_HEIGHT/2;
  mShowCursor = false;

  mActionButton = PSP_CTRL_CIRCLE;

  mStyle = JGUI_STYLE_WRAPPING;

  mActive = true;
}


JGuiController::~JGuiController()
{
  for (int i=0;i<mCount;i++)
    if (mObjects[i]!=NULL)
      delete mObjects[i];

  //	JGERelease();
}


void JGuiController::Render()
{
  //	if (mShadingBg != NULL)
  //		jge->Gfx_BlendRect(mShadingBg, mShadingColor);

  //	if (mBg != NULL)
  //		jge->Gfx_DrawImage(mBg, mBgX, mBgY);

  for (int i=0;i<mCount;i++)
    if (mObjects[i]!=NULL)
      mObjects[i]->Render();
}

void JGuiController::Update(float dt)
{
  for (int i=0;i<mCount;i++)
    if (mObjects[i]!=NULL)
      mObjects[i]->Update(dt);

  u32 key = mEngine->ReadButton();
  if (key == mActionButton)
    {
      if (mObjects[mCurr] != NULL && mObjects[mCurr]->ButtonPressed())
	{
	  if (mListener != NULL)
	    {
	      mListener->ButtonPressed(mId, mObjects[mCurr]->GetId());
	      return;
	    }
	}
    }
  else if ((PSP_CTRL_LEFT == key) || (PSP_CTRL_UP == key)) // || mEngine->GetAnalogY() < 64 || mEngine->GetAnalogX() < 64)
    {
      int n = mCurr;
      n--;
      if (n<0)
	{
	  if ((mStyle&JGUI_STYLE_WRAPPING))
	    n = mCount-1;
	  else
	    n = 0;
	}

      if (n != mCurr && mObjects[mCurr] != NULL && mObjects[mCurr]->Leaving(PSP_CTRL_UP))
	{
	  mCurr = n;
	  mObjects[mCurr]->Entering();
	}
    }
  else if ((PSP_CTRL_RIGHT == key) || (PSP_CTRL_DOWN == key)) // || mEngine->GetAnalogY()>192 || mEngine->GetAnalogX()>192)
    {
      int n = mCurr;
      n++;
      if (n>mCount-1)
	{
	  if ((mStyle&JGUI_STYLE_WRAPPING))
	    n = 0;
	  else
	    n = mCount-1;
	}

      if (n != mCurr && mObjects[mCurr] != NULL && mObjects[mCurr]->Leaving(PSP_CTRL_DOWN))
	{
	  mCurr = n;
	  mObjects[mCurr]->Entering();
	}
    }
}


void JGuiController::Add(JGuiObject* ctrl)
{
  if (mCount<MAX_GUIOBJECT)
    {
      mObjects[mCount++] = ctrl;
    }
}


void JGuiController::Remove(int id)
{
  for (int i=0;i<mCount;i++)
    {
      if (mObjects[i] != NULL && mObjects[i]->GetId()==id)
	{
	  delete mObjects[i];
	  for (int j=i;j<mCount-1;j++)
	    {
	      mObjects[j] = mObjects[j+1];
	    }
	  mObjects[mCount-1] = NULL;
	  mCount--;
	  if (mCurr == mCount)
	    mCurr = 0;
	  return;
	}
    }
}


void JGuiController::Remove(JGuiObject* ctrl)
{
  for (int i=0;i<mCount;i++)
    {
      if (mObjects[i] != NULL && mObjects[i]==ctrl)
	{
	  delete mObjects[i];
	  for (int j=i;j<mCount-1;j++)
	    {
	      mObjects[j] = mObjects[j+1];
	    }
	  mObjects[mCount-1] = NULL;
	  mCount--;
	  if (mCurr == mCount)
	    mCurr = 0;
	  return;
	}
    }
}


void JGuiController::SetActionButton(u32 button) { mActionButton = button; }
void JGuiController::SetStyle(int style) { mStyle = style;	}
void JGuiController::SetCursor(JSprite* cursor) { mCursor = cursor; }
bool JGuiController::IsActive() { return mActive; }
void JGuiController::SetActive(bool flag) { mActive = flag; }