mirror of
https://github.com/juce-framework/JUCE.git
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689 lines
20 KiB
C++
689 lines
20 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library - "Jules' Utility Class Extensions"
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Copyright 2004-9 by Raw Material Software Ltd.
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------------------------------------------------------------------------------
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JUCE can be redistributed and/or modified under the terms of the GNU General
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Public License (Version 2), as published by the Free Software Foundation.
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A copy of the license is included in the JUCE distribution, or can be found
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online at www.gnu.org/licenses.
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.rawmaterialsoftware.com/juce for more information.
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==============================================================================
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*/
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#include "../../../core/juce_StandardHeader.h"
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BEGIN_JUCE_NAMESPACE
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#include "juce_AlertWindow.h"
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#include "../lookandfeel/juce_LookAndFeel.h"
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#include "../buttons/juce_TextButton.h"
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#include "../controls/juce_TextEditor.h"
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#include "../controls/juce_ProgressBar.h"
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#include "../juce_Desktop.h"
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#include "../../../text/juce_LocalisedStrings.h"
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#include "../../../events/juce_MessageManager.h"
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#include "../../../application/juce_Application.h"
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#include "../../../containers/juce_ScopedPointer.h"
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static const int titleH = 24;
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static const int iconWidth = 80;
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//==============================================================================
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class AlertWindowTextEditor : public TextEditor
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{
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public:
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#if JUCE_LINUX
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#define PASSWORD_CHAR 0x2022
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#else
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#define PASSWORD_CHAR 0x25cf
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#endif
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AlertWindowTextEditor (const String& name,
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const bool isPasswordBox)
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: TextEditor (name,
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isPasswordBox ? (const tchar) PASSWORD_CHAR
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: (const tchar) 0)
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{
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setSelectAllWhenFocused (true);
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}
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~AlertWindowTextEditor()
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{
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}
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void returnPressed()
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{
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// pass these up the component hierarchy to be trigger the buttons
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getParentComponent()->keyPressed (KeyPress (KeyPress::returnKey, 0, T('\n')));
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}
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void escapePressed()
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{
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// pass these up the component hierarchy to be trigger the buttons
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getParentComponent()->keyPressed (KeyPress (KeyPress::escapeKey, 0, 0));
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}
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private:
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AlertWindowTextEditor (const AlertWindowTextEditor&);
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const AlertWindowTextEditor& operator= (const AlertWindowTextEditor&);
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};
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//==============================================================================
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AlertWindow::AlertWindow (const String& title,
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const String& message,
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AlertIconType iconType,
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Component* associatedComponent_)
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: TopLevelWindow (title, true),
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alertIconType (iconType),
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associatedComponent (associatedComponent_)
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{
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if (message.isEmpty())
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text = T(" "); // to force an update if the message is empty
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setMessage (message);
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for (int i = Desktop::getInstance().getNumComponents(); --i >= 0;)
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{
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Component* const c = Desktop::getInstance().getComponent (i);
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if (c != 0 && c->isAlwaysOnTop() && c->isShowing())
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{
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setAlwaysOnTop (true);
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break;
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}
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}
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if (JUCEApplication::getInstance() == 0)
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setAlwaysOnTop (true); // for a plugin, make it always-on-top because the host windows are often top-level
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lookAndFeelChanged();
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constrainer.setMinimumOnscreenAmounts (0x10000, 0x10000, 0x10000, 0x10000);
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}
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AlertWindow::~AlertWindow()
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{
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for (int i = customComps.size(); --i >= 0;)
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removeChildComponent ((Component*) customComps[i]);
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deleteAllChildren();
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}
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void AlertWindow::userTriedToCloseWindow()
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{
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exitModalState (0);
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}
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//==============================================================================
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void AlertWindow::setMessage (const String& message)
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{
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const String newMessage (message.substring (0, 2048));
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if (text != newMessage)
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{
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text = newMessage;
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font.setHeight (15.0f);
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Font titleFont (font.getHeight() * 1.1f, Font::bold);
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textLayout.setText (getName() + T("\n\n"), titleFont);
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textLayout.appendText (text, font);
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updateLayout (true);
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repaint();
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}
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}
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//==============================================================================
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void AlertWindow::buttonClicked (Button* button)
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{
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for (int i = 0; i < buttons.size(); i++)
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{
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TextButton* const c = (TextButton*) buttons[i];
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if (button->getName() == c->getName())
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{
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if (c->getParentComponent() != 0)
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c->getParentComponent()->exitModalState (c->getCommandID());
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break;
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}
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}
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}
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//==============================================================================
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void AlertWindow::addButton (const String& name,
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const int returnValue,
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const KeyPress& shortcutKey1,
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const KeyPress& shortcutKey2)
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{
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TextButton* const b = new TextButton (name, String::empty);
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b->setWantsKeyboardFocus (true);
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b->setMouseClickGrabsKeyboardFocus (false);
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b->setCommandToTrigger (0, returnValue, false);
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b->addShortcut (shortcutKey1);
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b->addShortcut (shortcutKey2);
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b->addButtonListener (this);
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b->changeWidthToFitText (getLookAndFeel().getAlertWindowButtonHeight());
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addAndMakeVisible (b, 0);
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buttons.add (b);
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updateLayout (false);
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}
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int AlertWindow::getNumButtons() const
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{
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return buttons.size();
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}
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//==============================================================================
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void AlertWindow::addTextEditor (const String& name,
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const String& initialContents,
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const String& onScreenLabel,
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const bool isPasswordBox)
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{
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AlertWindowTextEditor* const tc = new AlertWindowTextEditor (name, isPasswordBox);
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tc->setColour (TextEditor::outlineColourId, findColour (ComboBox::outlineColourId));
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tc->setFont (font);
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tc->setText (initialContents);
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tc->setCaretPosition (initialContents.length());
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addAndMakeVisible (tc);
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textBoxes.add (tc);
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allComps.add (tc);
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textboxNames.add (onScreenLabel);
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updateLayout (false);
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}
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const String AlertWindow::getTextEditorContents (const String& nameOfTextEditor) const
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{
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for (int i = textBoxes.size(); --i >= 0;)
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if (((TextEditor*)textBoxes[i])->getName() == nameOfTextEditor)
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return ((TextEditor*)textBoxes[i])->getText();
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return String::empty;
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}
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//==============================================================================
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void AlertWindow::addComboBox (const String& name,
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const StringArray& items,
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const String& onScreenLabel)
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{
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ComboBox* const cb = new ComboBox (name);
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for (int i = 0; i < items.size(); ++i)
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cb->addItem (items[i], i + 1);
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addAndMakeVisible (cb);
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cb->setSelectedItemIndex (0);
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comboBoxes.add (cb);
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allComps.add (cb);
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comboBoxNames.add (onScreenLabel);
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updateLayout (false);
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}
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ComboBox* AlertWindow::getComboBoxComponent (const String& nameOfList) const
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{
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for (int i = comboBoxes.size(); --i >= 0;)
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if (((ComboBox*) comboBoxes[i])->getName() == nameOfList)
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return (ComboBox*) comboBoxes[i];
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return 0;
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}
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//==============================================================================
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class AlertTextComp : public TextEditor
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{
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AlertTextComp (const AlertTextComp&);
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const AlertTextComp& operator= (const AlertTextComp&);
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int bestWidth;
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public:
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AlertTextComp (const String& message,
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const Font& font)
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{
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setReadOnly (true);
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setMultiLine (true, true);
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setCaretVisible (false);
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setScrollbarsShown (true);
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lookAndFeelChanged();
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setWantsKeyboardFocus (false);
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setFont (font);
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setText (message, false);
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bestWidth = 2 * (int) sqrt (font.getHeight() * font.getStringWidth (message));
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setColour (TextEditor::backgroundColourId, Colours::transparentBlack);
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setColour (TextEditor::outlineColourId, Colours::transparentBlack);
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setColour (TextEditor::shadowColourId, Colours::transparentBlack);
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}
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~AlertTextComp()
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{
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}
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int getPreferredWidth() const throw() { return bestWidth; }
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void updateLayout (const int width)
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{
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TextLayout text;
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text.appendText (getText(), getFont());
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text.layout (width - 8, Justification::topLeft, true);
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setSize (width, jmin (width, text.getHeight() + (int) getFont().getHeight()));
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}
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};
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void AlertWindow::addTextBlock (const String& text)
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{
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AlertTextComp* const c = new AlertTextComp (text, font);
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textBlocks.add (c);
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allComps.add (c);
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addAndMakeVisible (c);
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updateLayout (false);
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}
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//==============================================================================
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void AlertWindow::addProgressBarComponent (double& progressValue)
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{
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ProgressBar* const pb = new ProgressBar (progressValue);
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progressBars.add (pb);
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allComps.add (pb);
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addAndMakeVisible (pb);
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updateLayout (false);
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}
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//==============================================================================
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void AlertWindow::addCustomComponent (Component* const component)
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{
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customComps.add (component);
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allComps.add (component);
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addAndMakeVisible (component);
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updateLayout (false);
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}
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int AlertWindow::getNumCustomComponents() const
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{
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return customComps.size();
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}
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Component* AlertWindow::getCustomComponent (const int index) const
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{
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return (Component*) customComps [index];
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}
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Component* AlertWindow::removeCustomComponent (const int index)
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{
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Component* const c = getCustomComponent (index);
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if (c != 0)
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{
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customComps.removeValue (c);
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allComps.removeValue (c);
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removeChildComponent (c);
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updateLayout (false);
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}
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return c;
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}
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//==============================================================================
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void AlertWindow::paint (Graphics& g)
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{
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getLookAndFeel().drawAlertBox (g, *this, textArea, textLayout);
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g.setColour (findColour (textColourId));
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g.setFont (getLookAndFeel().getAlertWindowFont());
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int i;
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for (i = textBoxes.size(); --i >= 0;)
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{
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if (textboxNames[i].isNotEmpty())
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{
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const TextEditor* const te = (TextEditor*) textBoxes[i];
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g.drawFittedText (textboxNames[i],
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te->getX(), te->getY() - 14,
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te->getWidth(), 14,
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Justification::centredLeft, 1);
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}
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}
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for (i = comboBoxNames.size(); --i >= 0;)
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{
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if (comboBoxNames[i].isNotEmpty())
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{
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const ComboBox* const cb = (ComboBox*) comboBoxes[i];
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g.drawFittedText (comboBoxNames[i],
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cb->getX(), cb->getY() - 14,
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cb->getWidth(), 14,
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Justification::centredLeft, 1);
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}
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}
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}
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void AlertWindow::updateLayout (const bool onlyIncreaseSize)
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{
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const int wid = jmax (font.getStringWidth (text),
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font.getStringWidth (getName()));
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const int sw = (int) sqrt (font.getHeight() * wid);
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int w = jmin (300 + sw * 2, (int) (getParentWidth() * 0.7f));
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const int edgeGap = 10;
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int iconSpace;
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if (alertIconType == NoIcon)
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{
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textLayout.layout (w, Justification::horizontallyCentred, true);
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iconSpace = 0;
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}
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else
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{
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textLayout.layout (w, Justification::left, true);
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iconSpace = iconWidth;
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}
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w = jmax (350, textLayout.getWidth() + iconSpace + edgeGap * 4);
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w = jmin (w, (int) (getParentWidth() * 0.7f));
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const int textLayoutH = textLayout.getHeight();
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const int textBottom = 16 + titleH + textLayoutH;
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int h = textBottom;
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int buttonW = 40;
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int i;
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for (i = 0; i < buttons.size(); ++i)
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buttonW += 16 + ((const TextButton*) buttons[i])->getWidth();
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w = jmax (buttonW, w);
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h += (textBoxes.size() + comboBoxes.size() + progressBars.size()) * 50;
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if (buttons.size() > 0)
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h += 20 + ((TextButton*) buttons[0])->getHeight();
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for (i = customComps.size(); --i >= 0;)
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{
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w = jmax (w, ((Component*) customComps[i])->getWidth() + 40);
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h += 10 + ((Component*) customComps[i])->getHeight();
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}
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for (i = textBlocks.size(); --i >= 0;)
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{
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const AlertTextComp* const ac = (AlertTextComp*) textBlocks[i];
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w = jmax (w, ac->getPreferredWidth());
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}
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w = jmin (w, (int) (getParentWidth() * 0.7f));
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for (i = textBlocks.size(); --i >= 0;)
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{
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AlertTextComp* const ac = (AlertTextComp*) textBlocks[i];
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ac->updateLayout ((int) (w * 0.8f));
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h += ac->getHeight() + 10;
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}
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h = jmin (getParentHeight() - 50, h);
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if (onlyIncreaseSize)
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{
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w = jmax (w, getWidth());
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h = jmax (h, getHeight());
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}
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if (! isVisible())
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{
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centreAroundComponent (associatedComponent, w, h);
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}
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else
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{
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const int cx = getX() + getWidth() / 2;
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const int cy = getY() + getHeight() / 2;
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setBounds (cx - w / 2,
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cy - h / 2,
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w, h);
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}
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textArea.setBounds (edgeGap, edgeGap, w - (edgeGap * 2), h - edgeGap);
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const int spacer = 16;
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int totalWidth = -spacer;
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for (i = buttons.size(); --i >= 0;)
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totalWidth += ((TextButton*) buttons[i])->getWidth() + spacer;
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int x = (w - totalWidth) / 2;
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int y = (int) (getHeight() * 0.95f);
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for (i = 0; i < buttons.size(); ++i)
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{
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TextButton* const c = (TextButton*) buttons[i];
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int ny = proportionOfHeight (0.95f) - c->getHeight();
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c->setTopLeftPosition (x, ny);
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if (ny < y)
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y = ny;
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x += c->getWidth() + spacer;
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c->toFront (false);
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}
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y = textBottom;
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for (i = 0; i < allComps.size(); ++i)
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{
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Component* const c = (Component*) allComps[i];
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const int h = 22;
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const int comboIndex = comboBoxes.indexOf (c);
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if (comboIndex >= 0 && comboBoxNames [comboIndex].isNotEmpty())
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y += 18;
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const int tbIndex = textBoxes.indexOf (c);
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if (tbIndex >= 0 && textboxNames[tbIndex].isNotEmpty())
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y += 18;
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if (customComps.contains (c) || textBlocks.contains (c))
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{
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c->setTopLeftPosition ((getWidth() - c->getWidth()) / 2, y);
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y += c->getHeight() + 10;
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}
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else
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{
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c->setBounds (proportionOfWidth (0.1f), y, proportionOfWidth (0.8f), h);
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y += h + 10;
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}
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}
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setWantsKeyboardFocus (getNumChildComponents() == 0);
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}
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bool AlertWindow::containsAnyExtraComponents() const
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{
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return textBoxes.size()
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+ comboBoxes.size()
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+ progressBars.size()
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+ customComps.size() > 0;
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}
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//==============================================================================
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void AlertWindow::mouseDown (const MouseEvent&)
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{
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dragger.startDraggingComponent (this, &constrainer);
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}
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void AlertWindow::mouseDrag (const MouseEvent& e)
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{
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dragger.dragComponent (this, e);
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}
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bool AlertWindow::keyPressed (const KeyPress& key)
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{
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for (int i = buttons.size(); --i >= 0;)
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{
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TextButton* const b = (TextButton*) buttons[i];
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if (b->isRegisteredForShortcut (key))
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{
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b->triggerClick();
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return true;
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}
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}
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if (key.isKeyCode (KeyPress::escapeKey) && buttons.size() == 0)
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{
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exitModalState (0);
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return true;
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}
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else if (key.isKeyCode (KeyPress::returnKey) && buttons.size() == 1)
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{
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((TextButton*) buttons.getFirst())->triggerClick();
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return true;
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}
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|
|
return false;
|
|
}
|
|
|
|
void AlertWindow::lookAndFeelChanged()
|
|
{
|
|
const int flags = getLookAndFeel().getAlertBoxWindowFlags();
|
|
|
|
setUsingNativeTitleBar ((flags & ComponentPeer::windowHasTitleBar) != 0);
|
|
setDropShadowEnabled (isOpaque() && (flags & ComponentPeer::windowHasDropShadow) != 0);
|
|
}
|
|
|
|
int AlertWindow::getDesktopWindowStyleFlags() const
|
|
{
|
|
return getLookAndFeel().getAlertBoxWindowFlags();
|
|
}
|
|
|
|
//==============================================================================
|
|
struct AlertWindowInfo
|
|
{
|
|
String title, message, button1, button2, button3;
|
|
AlertWindow::AlertIconType iconType;
|
|
int numButtons;
|
|
Component* associatedComponent;
|
|
|
|
int run() const
|
|
{
|
|
return (int) (pointer_sized_int)
|
|
MessageManager::getInstance()->callFunctionOnMessageThread (showCallback, (void*) this);
|
|
}
|
|
|
|
private:
|
|
int show() const
|
|
{
|
|
jassert (associatedComponent == 0 || associatedComponent->isValidComponent()); // has your comp been deleted?
|
|
|
|
LookAndFeel& lf = associatedComponent->isValidComponent() ? associatedComponent->getLookAndFeel()
|
|
: LookAndFeel::getDefaultLookAndFeel();
|
|
|
|
ScopedPointer <Component> alertBox (lf.createAlertWindow (title, message, button1, button2, button3,
|
|
iconType, numButtons, associatedComponent));
|
|
|
|
jassert (alertBox != 0); // you have to return one of these!
|
|
|
|
return alertBox->runModalLoop();
|
|
}
|
|
|
|
static void* showCallback (void* userData)
|
|
{
|
|
return (void*) (pointer_sized_int) ((const AlertWindowInfo*) userData)->show();
|
|
}
|
|
};
|
|
|
|
void AlertWindow::showMessageBox (AlertIconType iconType,
|
|
const String& title,
|
|
const String& message,
|
|
const String& buttonText,
|
|
Component* associatedComponent)
|
|
{
|
|
AlertWindowInfo info;
|
|
info.title = title;
|
|
info.message = message;
|
|
info.button1 = buttonText.isEmpty() ? TRANS("ok") : buttonText;
|
|
info.iconType = iconType;
|
|
info.numButtons = 1;
|
|
info.associatedComponent = associatedComponent;
|
|
|
|
info.run();
|
|
}
|
|
|
|
bool AlertWindow::showOkCancelBox (AlertIconType iconType,
|
|
const String& title,
|
|
const String& message,
|
|
const String& button1Text,
|
|
const String& button2Text,
|
|
Component* associatedComponent)
|
|
{
|
|
AlertWindowInfo info;
|
|
info.title = title;
|
|
info.message = message;
|
|
info.button1 = button1Text.isEmpty() ? TRANS("ok") : button1Text;
|
|
info.button2 = button2Text.isEmpty() ? TRANS("cancel") : button2Text;
|
|
info.iconType = iconType;
|
|
info.numButtons = 2;
|
|
info.associatedComponent = associatedComponent;
|
|
|
|
return info.run() != 0;
|
|
}
|
|
|
|
int AlertWindow::showYesNoCancelBox (AlertIconType iconType,
|
|
const String& title,
|
|
const String& message,
|
|
const String& button1Text,
|
|
const String& button2Text,
|
|
const String& button3Text,
|
|
Component* associatedComponent)
|
|
{
|
|
AlertWindowInfo info;
|
|
info.title = title;
|
|
info.message = message;
|
|
info.button1 = button1Text.isEmpty() ? TRANS("yes") : button1Text;
|
|
info.button2 = button2Text.isEmpty() ? TRANS("no") : button2Text;
|
|
info.button3 = button3Text.isEmpty() ? TRANS("cancel") : button3Text;
|
|
info.iconType = iconType;
|
|
info.numButtons = 3;
|
|
info.associatedComponent = associatedComponent;
|
|
|
|
return info.run();
|
|
}
|
|
|
|
END_JUCE_NAMESPACE
|