paulxstretch/deps/juce/examples/DemoRunner/Source/UI/DemoContentComponent.cpp

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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2020 - Raw Material Software Limited
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 6 End-User License
Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
End User License Agreement: www.juce.com/juce-6-licence
Privacy Policy: www.juce.com/juce-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
#include "DemoContentComponent.h"
#include "SettingsContent.h"
#include "MainComponent.h"
//==============================================================================
struct DemoContent : public Component
{
DemoContent() noexcept {}
void resized() override
{
if (comp != nullptr)
comp->setBounds (getLocalBounds());
}
void setComponent (Component* newComponent)
{
comp.reset (newComponent);
if (comp != nullptr)
{
addAndMakeVisible (comp.get());
resized();
}
}
Component* getComponent() const noexcept { return comp.get(); }
void showHomeScreen() { setComponent (createIntroDemo()); }
private:
std::unique_ptr<Component> comp;
};
//==============================================================================
#if ! (JUCE_ANDROID || JUCE_IOS)
struct CodeContent : public Component
{
CodeContent()
{
addAndMakeVisible (codeEditor);
codeEditor.setReadOnly (true);
codeEditor.setScrollbarThickness (8);
lookAndFeelChanged();
}
void resized() override
{
codeEditor.setBounds (getLocalBounds());
}
void setDefaultCodeContent()
{
document.replaceAllContent ("\n/*******************************************************************************\n"
" Select one of the demos from the side panel on the left to see\n"
" its code here and an instance running in the \"Demo\" tab!\n"
"*******************************************************************************/\n");
}
void lookAndFeelChanged() override
{
auto* v4 = dynamic_cast <LookAndFeel_V4*> (&Desktop::getInstance().getDefaultLookAndFeel());
if (v4 != nullptr && (v4->getCurrentColourScheme() != LookAndFeel_V4::getLightColourScheme()))
codeEditor.setColourScheme (getDarkColourScheme());
else
codeEditor.setColourScheme (getLightColourScheme());
}
CodeDocument document;
CPlusPlusCodeTokeniser cppTokensier;
CodeEditorComponent codeEditor { document, &cppTokensier };
};
#endif
//==============================================================================
DemoContentComponent::DemoContentComponent (Component& mainComponent, std::function<void (bool)> callback)
: TabbedComponent (TabbedButtonBar::Orientation::TabsAtTop),
demoChangedCallback (std::move (callback))
{
demoContent.reset (new DemoContent());
addTab ("Demo", Colours::transparentBlack, demoContent.get(), false);
#if ! (JUCE_ANDROID || JUCE_IOS)
codeContent.reset (new CodeContent());
addTab ("Code", Colours::transparentBlack, codeContent.get(), false);
#endif
addTab ("Settings", Colours::transparentBlack, new SettingsContent (dynamic_cast<MainComponent&> (mainComponent)), true);
setTabBarDepth (40);
lookAndFeelChanged();
}
DemoContentComponent::~DemoContentComponent()
{
}
void DemoContentComponent::resized()
{
TabbedComponent::resized();
if (tabBarIndent > 0)
getTabbedButtonBar().setBounds (getTabbedButtonBar().getBounds().withTrimmedLeft (tabBarIndent));
}
void DemoContentComponent::setDemo (const String& category, int selectedDemoIndex)
{
if ((currentDemoCategory == category)
&& (currentDemoIndex == selectedDemoIndex))
return;
auto demo = JUCEDemos::getCategory (category).demos[(size_t) selectedDemoIndex];
#if ! (JUCE_ANDROID || JUCE_IOS)
codeContent->document.replaceAllContent (trimPIP (demo.demoFile.loadFileAsString()));
codeContent->codeEditor.scrollToLine (0);
#endif
auto* content = demo.callback();
demoContent->setComponent (content);
demoChangedCallback (demo.isHeavyweight);
ensureDemoIsShowing();
currentDemoCategory = category;
currentDemoIndex = selectedDemoIndex;
}
bool DemoContentComponent::isShowingHomeScreen() const noexcept
{
return isComponentIntroDemo (demoContent->getComponent()) && getCurrentTabIndex() == 0;
}
void DemoContentComponent::showHomeScreen()
{
demoContent->showHomeScreen();
#if ! (JUCE_ANDROID || JUCE_IOS)
codeContent->setDefaultCodeContent();
#endif
demoChangedCallback (false);
ensureDemoIsShowing();
resized();
currentDemoCategory = {};
currentDemoIndex = -1;
}
void DemoContentComponent::clearCurrentDemo()
{
demoContent->setComponent (nullptr);
demoChangedCallback (false);
}
void DemoContentComponent::lookAndFeelChanged()
{
auto backgroundColour = findColour (ResizableWindow::backgroundColourId);
for (int i = 0; i < getNumTabs(); ++i)
setTabBackgroundColour (i, backgroundColour);
}
String DemoContentComponent::trimPIP (const String& fileContents)
{
auto lines = StringArray::fromLines (fileContents);
auto metadataEndIndex = lines.indexOf (" END_JUCE_PIP_METADATA");
if (metadataEndIndex == -1)
return fileContents;
lines.removeRange (0, metadataEndIndex + 3); // account for newline and comment block end
return lines.joinIntoString ("\n");
}
void DemoContentComponent::ensureDemoIsShowing()
{
if (getCurrentTabIndex() == (getNumTabs() - 1))
setCurrentTabIndex (0);
}