CGUISprite.cpp

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/* Copyright (C) 2009 Wildfire Games.
 * This file is part of 0 A.D.
 *
 * 0 A.D. is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * 0 A.D. is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "precompiled.h"
#include "CGUISprite.h"

void CGUISpriteInstance::Draw(CRect Size, int CellID, std::map<CStr, CGUISprite> &Sprites, float Z) const
{
    if (m_CachedSize != Size || m_CachedCellID != CellID)
    {
        GUIRenderer::UpdateDrawCallCache(m_DrawCallCache, m_SpriteName, Size, CellID, Sprites);
        m_CachedSize = Size;
        m_CachedCellID = CellID;
    }
    GUIRenderer::Draw(m_DrawCallCache, Z);
}

void CGUISpriteInstance::Invalidate()
{
    m_CachedSize = CRect();
    m_CachedCellID = -1;
}

bool CGUISpriteInstance::IsEmpty() const
{
    return m_SpriteName=="";
}

// Plus a load of constructors / assignment operators, which don't copy the
// DrawCall cache (to avoid losing track of who has allocated various bits
// of data):

CGUISpriteInstance::CGUISpriteInstance()
    : m_CachedCellID(-1)
{
}

CGUISpriteInstance::CGUISpriteInstance(const CStr& SpriteName)
    : m_SpriteName(SpriteName), m_CachedCellID(-1)
{
}

CGUISpriteInstance::CGUISpriteInstance(const CGUISpriteInstance &Sprite)
    : m_SpriteName(Sprite.m_SpriteName), m_CachedCellID(-1)
{
}

CGUISpriteInstance &CGUISpriteInstance::operator=(const CStr& SpriteName)
{
    m_SpriteName = SpriteName;
    m_DrawCallCache.clear();
    Invalidate();
    return *this;
}