/*
CProgressBar
*/

#include "precompiled.h"
#include "GUI.h"
#include "CProgressBar.h"

#include "lib/ogl.h"

using namespace std;

//-------------------------------------------------------------------
//  Constructor / Destructor
//-------------------------------------------------------------------
CProgressBar::CProgressBar()
{
    AddSetting(GUIST_CGUISpriteInstance,    "sprite_background");
    AddSetting(GUIST_CGUISpriteInstance,    "sprite_bar");
    AddSetting(GUIST_float,                 "caption"); // aka value from 0 to 100
    AddSetting(GUIST_CStr,                  "tooltip");
    AddSetting(GUIST_CStr,                  "tooltip_style");
}

CProgressBar::~CProgressBar()
{
}

void CProgressBar::HandleMessage(const SGUIMessage &Message)
{
    // Important
    IGUIObject::HandleMessage(Message);

    switch (Message.type)
    {
    case GUIM_SETTINGS_UPDATED:
        // Update scroll-bar
        // TODO Gee: (2004-09-01) Is this really updated each time it should?
        if (Message.value == CStr("caption"))
        {
            float value;
            GUI<float>::GetSetting(this, "caption", value);
            if (value > 100.f)
                GUI<float>::SetSetting(this, "caption", 100.f);
            else
            if (value < 0.f)
                GUI<float>::SetSetting(this, "caption", 0.f);
        }
        break;
    default:
        break;
    }
}

void CProgressBar::Draw() 
{
    if (GetGUI())
    {
        float bz = GetBufferedZ();

        CGUISpriteInstance *sprite_background, *sprite_bar;
        int cell_id = 0;
        float value = 0;
        GUI<CGUISpriteInstance>::GetSettingPointer(this, "sprite_background", sprite_background);
        GUI<CGUISpriteInstance>::GetSettingPointer(this, "sprite_bar", sprite_bar);
        GUI<int>::GetSetting(this, "cell_id", cell_id);
        GUI<float>::GetSetting(this, "caption", value);

        GetGUI()->DrawSprite(*sprite_background, cell_id, bz, m_CachedActualSize);


        // Get size of bar (notice it is drawn slightly closer, to appear above the background)
        CRect bar_size(m_CachedActualSize.left, m_CachedActualSize.top,
                       m_CachedActualSize.left+m_CachedActualSize.GetWidth()*(value/100.f), m_CachedActualSize.bottom);
        GetGUI()->DrawSprite(*sprite_bar, cell_id, bz+0.01f, bar_size);
    }
}