source/modules/juce_gui_basics/buttons/juce_ToolbarButton.cpp

   1 /*
   2   ==============================================================================
   3
   4    This file is part of the JUCE library.
   5    Copyright (c) 2022 - Raw Material Software Limited
   6
   7    JUCE is an open source library subject to commercial or open-source
   8    licensing.
   9
  10    By using JUCE, you agree to the terms of both the JUCE 7 End-User License
  11    Agreement and JUCE Privacy Policy.
  12
  13    End User License Agreement: www.juce.com/juce-7-licence
  14    Privacy Policy: www.juce.com/juce-privacy-policy
  15
  16    Or: You may also use this code under the terms of the GPL v3 (see
  17    www.gnu.org/licenses).
  18
  19    JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
  20    EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
  21    DISCLAIMED.
  22
  23   ==============================================================================
  24 */
  25
  26 namespace juce
  27 {
  28
  29 ToolbarButton::ToolbarButton (const int iid, const String& buttonText,
  30                               std::unique_ptr<Drawable> normalIm,
  31                               std::unique_ptr<Drawable> toggledOnIm)
  32    : ToolbarItemComponent (iid, buttonText, true),
  33      normalImage (std::move (normalIm)),
  34      toggledOnImage (std::move (toggledOnIm))
  35 {
  36     jassert (normalImage != nullptr);
  37 }
  38
  39 ToolbarButton::~ToolbarButton()
  40 {
  41 }
  42
  43 //==============================================================================
  44 bool ToolbarButton::getToolbarItemSizes (int toolbarDepth, bool /*isToolbarVertical*/, int& preferredSize, int& minSize, int& maxSize)
  45 {
  46     preferredSize = minSize = maxSize = toolbarDepth;
  47     return true;
  48 }
  49
  50 void ToolbarButton::paintButtonArea (Graphics&, int /*width*/, int /*height*/, bool /*isMouseOver*/, bool /*isMouseDown*/)
  51 {
  52 }
  53
  54 void ToolbarButton::contentAreaChanged (const Rectangle<int>&)
  55 {
  56     buttonStateChanged();
  57 }
  58
  59 void ToolbarButton::setCurrentImage (Drawable* const newImage)
  60 {
  61     if (newImage != currentImage)
  62     {
  63         removeChildComponent (currentImage);
  64         currentImage = newImage;
  65
  66         if (currentImage != nullptr)
  67         {
  68             enablementChanged();
  69             addAndMakeVisible (currentImage);
  70             updateDrawable();
  71         }
  72     }
  73 }
  74
  75 void ToolbarButton::updateDrawable()
  76 {
  77     if (currentImage != nullptr)
  78     {
  79         currentImage->setInterceptsMouseClicks (false, false);
  80         currentImage->setTransformToFit (getContentArea().toFloat(), RectanglePlacement::centred);
  81         currentImage->setAlpha (isEnabled() ? 1.0f : 0.5f);
  82     }
  83 }
  84
  85 void ToolbarButton::resized()
  86 {
  87     ToolbarItemComponent::resized();
  88     updateDrawable();
  89 }
  90
  91 void ToolbarButton::enablementChanged()
  92 {
  93     ToolbarItemComponent::enablementChanged();
  94     updateDrawable();
  95 }
  96
  97 Drawable* ToolbarButton::getImageToUse() const
  98 {
  99     if (getStyle() == Toolbar::textOnly)
 100         return nullptr;
 101
 102     if (getToggleState() && toggledOnImage != nullptr)
 103         return toggledOnImage.get();
 104
 105     return normalImage.get();
 106 }
 107
 108 void ToolbarButton::buttonStateChanged()
 109 {
 110     setCurrentImage (getImageToUse());
 111 }
 112
 113 } // namespace juce