JUCE/modules/juce_gui_basics/buttons/juce_HyperlinkButton.cpp

/*
  ==============================================================================

   This file is part of the JUCE library - "Jules' Utility Class Extensions"
   Copyright 2004-11 by Raw Material Software Ltd.

  ------------------------------------------------------------------------------

   JUCE can be redistributed and/or modified under the terms of the GNU General
   Public License (Version 2), as published by the Free Software Foundation.
   A copy of the license is included in the JUCE distribution, or can be found
   online at www.gnu.org/licenses.

   JUCE 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.

  ------------------------------------------------------------------------------

   To release a closed-source product which uses JUCE, commercial licenses are
   available: visit www.rawmaterialsoftware.com/juce for more information.

  ==============================================================================
*/

BEGIN_JUCE_NAMESPACE

//==============================================================================
HyperlinkButton::HyperlinkButton (const String& linkText,
                                  const URL& linkURL)
   : Button (linkText),
     url (linkURL),
     font (14.0f, Font::underlined),
     resizeFont (true),
     justification (Justification::centred)
{
    setMouseCursor (MouseCursor::PointingHandCursor);
    setTooltip (linkURL.toString (false));
}

HyperlinkButton::HyperlinkButton ()
   : Button (String::empty),
     font (14.0f, Font::underlined),
     resizeFont (true),
     justification (Justification::centred)
{
    setMouseCursor (MouseCursor::PointingHandCursor);
}

HyperlinkButton::~HyperlinkButton()
{
}

//==============================================================================
void HyperlinkButton::setFont (const Font& newFont,
                               const bool resizeToMatchComponentHeight,
                               const Justification& justificationType)
{
    font = newFont;
    resizeFont = resizeToMatchComponentHeight;
    justification = justificationType;
    repaint();
}

void HyperlinkButton::setURL (const URL& newURL) noexcept
{
    url = newURL;
    setTooltip (newURL.toString (false));
}

Font HyperlinkButton::getFontToUse() const
{
    Font f (font);

    if (resizeFont)
        f.setHeight (getHeight() * 0.7f);

    return f;
}

void HyperlinkButton::changeWidthToFitText()
{
    setSize (getFontToUse().getStringWidth (getName()) + 6, getHeight());
}

void HyperlinkButton::colourChanged()
{
    repaint();
}

//==============================================================================
void HyperlinkButton::clicked()
{
    if (url.isWellFormed())
        url.launchInDefaultBrowser();
}

void HyperlinkButton::paintButton (Graphics& g,
                                   bool isMouseOverButton,
                                   bool isButtonDown)
{
    const Colour textColour (findColour (textColourId));

    if (isEnabled())
        g.setColour ((isMouseOverButton) ? textColour.darker ((isButtonDown) ? 1.3f : 0.4f)
                                         : textColour);
    else
        g.setColour (textColour.withMultipliedAlpha (0.4f));

    g.setFont (getFontToUse());

    g.drawText (getButtonText(),
                2, 0, getWidth() - 2, getHeight(),
                justification.getOnlyHorizontalFlags() | Justification::verticallyCentred,
                true);
}

const Identifier HyperlinkButton::Ids::tagType ("HYPERLINKBUTTON");
const Identifier HyperlinkButton::Ids::text ("text");
const Identifier HyperlinkButton::Ids::url ("url");

void HyperlinkButton::refreshFromValueTree (const ValueTree& state, ComponentBuilder&)
{
    ComponentBuilder::refreshBasicComponentProperties (*this, state);

    setButtonText (state [Ids::text].toString());
    setURL (URL (state [Ids::url].toString()));
}

END_JUCE_NAMESPACE