field.cc

Linux下比较早的基于命令行的DVD播放器

//
// Copyright (c) 2005 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card.

// This program 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.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

//------------------------------------------------------------------------------

#include "Field.h"

#include "unichrome/Font.h"
#include "unichrome/Icon.h"

//------------------------------------------------------------------------------

using output::unichrome::osd::Field;

using unichrome::Unichrome;
using unichrome::Font;
using unichrome::Icon;
using unichrome::Window;

//------------------------------------------------------------------------------

Field::Config::Config(Unichrome& videoDevice, Font& valueFont,
                      uint32_t backgroundColor, const char* charset) :
    videoDevice(videoDevice),
    valueFont(valueFont),
    backgroundColor(backgroundColor),
    valueHeight(valueFont.getHeight(valueTop, valueBottom, charset))
{
}
    
//------------------------------------------------------------------------------

size_t Field::Config::getRecommendedHeight() const
{
    return (valueHeight + 2 * valueVerticalMargin + 1) & (~1);
}

//------------------------------------------------------------------------------

size_t Field::Config::getRecommendedWidth(const char* text) const
{
    size_t width, height;
    ssize_t left, top;

    valueFont.getDimensions(text, width, height, left, top);

    return width;
}

//------------------------------------------------------------------------------
//------------------------------------------------------------------------------

Field::Field(const Config& config, Window& parentWindow,
             size_t x, size_t y, size_t width, size_t height,
             uint32_t valueColor) :
    LogicalWindow(parentWindow, x, y, width, height),
    config(config),
    valueColor(valueColor)
{
    fill(config.backgroundColor);
}

//------------------------------------------------------------------------------

void Field::setValue(const char* value, bool rightJustify)
{
    fill(config.backgroundColor);
    printValue(value, rightJustify);
}

//------------------------------------------------------------------------------

void Field::setValue(const Icon& icon, bool rightJustify)
{
    fill(config.backgroundColor);
    
    size_t x = 0;
    if (rightJustify && (icon.getWidth() < getWidth())) {
        x = getWidth() - icon.getWidth();
    }

    size_t y = 0;
    if (icon.getHeight() < getHeight()) {
        y = (getHeight() - icon.getHeight()) / 2;
    }
            
    icon.display(*this, x, y);
}

//------------------------------------------------------------------------------

void Field::printValue(const char* value, bool rightJustify)
{
    size_t width, height;
    ssize_t left, top;

    config.valueFont.getDimensions(value, width, height, left, top);
    
    size_t x = config.valueMargin;
    if (rightJustify && (width+left+config.valueMargin)<getWidth()) {
        x = getWidth() - (width + config.valueMargin);
    }

    size_t y = config.valueVerticalMargin + config.valueTop;

    setForeground(valueColor);
    config.valueFont.displayText(*this, x, y, value);
}

//------------------------------------------------------------------------------
//------------------------------------------------------------------------------