CButton.cpp

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/* Copyright (C) 2013 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/>.
 */

/*
CButton
*/

#include "precompiled.h"

#include "CButton.h"

#include "lib/ogl.h"


//-------------------------------------------------------------------
//  Constructor / Destructor
//-------------------------------------------------------------------
CButton::CButton()
{
    AddSetting(GUIST_float,                 "buffer_zone");
    AddSetting(GUIST_CGUIString,            "caption");
    AddSetting(GUIST_int,                   "cell_id");
    AddSetting(GUIST_CStrW,                 "font");
    AddSetting(GUIST_CStrW,                 "sound_disabled");
    AddSetting(GUIST_CStrW,                 "sound_enter");
    AddSetting(GUIST_CStrW,                 "sound_leave");
    AddSetting(GUIST_CStrW,                 "sound_pressed");
    AddSetting(GUIST_CStrW,                 "sound_released");
    AddSetting(GUIST_CGUISpriteInstance,    "sprite");
    AddSetting(GUIST_CGUISpriteInstance,    "sprite_over");
    AddSetting(GUIST_CGUISpriteInstance,    "sprite_pressed");
    AddSetting(GUIST_CGUISpriteInstance,    "sprite_disabled");
    AddSetting(GUIST_EAlign,                "text_align");
    AddSetting(GUIST_EVAlign,               "text_valign");
    AddSetting(GUIST_CColor,                "textcolor");
    AddSetting(GUIST_CColor,                "textcolor_over");
    AddSetting(GUIST_CColor,                "textcolor_pressed");
    AddSetting(GUIST_CColor,                "textcolor_disabled");
    AddSetting(GUIST_CStrW,                 "tooltip");
    AddSetting(GUIST_CStr,                  "tooltip_style");

    // Add text
    AddText(new SGUIText());
}

CButton::~CButton()
{
}

void CButton::SetupText()
{
    if (!GetGUI())
        return;

    ENSURE(m_GeneratedTexts.size()==1);

    CStrW font;
    if (GUI<CStrW>::GetSetting(this, "font", font) != PSRETURN_OK || font.empty())
        // Use the default if none is specified
        // TODO Gee: (2004-08-14) Default should not be hard-coded, but be in styles!
        font = L"default";

    CGUIString caption;
    GUI<CGUIString>::GetSetting(this, "caption", caption);

    float buffer_zone=0.f;
    GUI<float>::GetSetting(this, "buffer_zone", buffer_zone);
    *m_GeneratedTexts[0] = GetGUI()->GenerateText(caption, font, m_CachedActualSize.GetWidth(), buffer_zone, this);

    CalculateTextPosition(m_CachedActualSize, m_TextPos, *m_GeneratedTexts[0]);
}

void CButton::HandleMessage(SGUIMessage &Message)
{
    // Important
    IGUIButtonBehavior::HandleMessage(Message);
    IGUITextOwner::HandleMessage(Message);
}

void CButton::Draw() 
{
    float bz = GetBufferedZ();

    CGUISpriteInstance *sprite, *sprite_over, *sprite_pressed, *sprite_disabled;
    int cell_id;

    // Statically initialise some strings, so we don't have to do
    // lots of allocation every time this function is called
    static CStr strSprite("sprite");
    static CStr strSpriteOver("sprite_over");
    static CStr strSpritePressed("sprite_pressed");
    static CStr strSpriteDisabled("sprite_disabled");
    static CStr strCellId("cell_id");

    GUI<CGUISpriteInstance>::GetSettingPointer(this, strSprite, sprite);
    GUI<CGUISpriteInstance>::GetSettingPointer(this, strSpriteOver, sprite_over);
    GUI<CGUISpriteInstance>::GetSettingPointer(this, strSpritePressed, sprite_pressed);
    GUI<CGUISpriteInstance>::GetSettingPointer(this, strSpriteDisabled, sprite_disabled);
    GUI<int>::GetSetting(this, strCellId, cell_id);

    DrawButton(m_CachedActualSize,
               bz,
               *sprite,
               *sprite_over,
               *sprite_pressed,
               *sprite_disabled,
               cell_id);

    CColor color = ChooseColor();
    DrawText(0, color, m_TextPos, bz+0.1f);
}