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(JButton 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 = JGE_BTN_OK;

  mStyle = JGUI_STYLE_WRAPPING;

  mActive = true;
}


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

}


void JGuiController::Render()
{
  for (int i=0;i<mCount;i++)
    if (mObjects[i]!=NULL)
      mObjects[i]->Render();
}
bool JGuiController::CheckUserInput(JButton key){

  if (!mCount) return false;
  if (key == mActionButton)
  {
    if (mObjects[mCurr] != NULL && mObjects[mCurr]->ButtonPressed())
    {
      if (mListener != NULL)
        mListener->ButtonPressed(mId, mObjects[mCurr]->GetId());
      return true;
    }
  }
  else if ((JGE_BTN_LEFT == key) || (JGE_BTN_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(JGE_BTN_UP))
    {
      mCurr = n;
      mObjects[mCurr]->Entering();
    }
    return true;
  }
  else if ((JGE_BTN_RIGHT == key) || (JGE_BTN_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(JGE_BTN_DOWN))
    {
      mCurr = n;
      mObjects[mCurr]->Entering();
    }
    return true;
  }
  return false;
}
void JGuiController::Update(float dt)
{
  for (int i=0;i<mCount;i++)
    if (mObjects[i]!=NULL)
      mObjects[i]->Update(dt);

  JButton key = mEngine->ReadButton();
  CheckUserInput(key);
}


void JGuiController::Add(JGuiObject* ctrl)
{
  mObjects.push_back(ctrl);
  mCount++;
}

void JGuiController::RemoveAt(int i){
    if (!mObjects[i]) return;
    mObjects.erase(mObjects.begin()+i);
	  delete mObjects[i];
    mCount--;
	  if (mCurr == mCount)
	    mCurr = 0;
	  return;
}

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


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


void JGuiController::SetActionButton(JButton 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; }