Gin
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An editable text box. More...
Inherits juce::Component, juce::TextInputTarget, and juce::SettableTooltipClient.
Classes | |
class | InputFilter |
Base class for input filters that can be applied to a TextEditor to restrict the text that can be entered. More... | |
class | LengthAndCharacterRestriction |
An input filter for a TextEditor that limits the length of text and/or the characters that it may contain. More... | |
class | Listener |
Receives callbacks from a TextEditor component when it changes. More... | |
struct | LookAndFeelMethods |
This abstract base class is implemented by LookAndFeel classes to provide TextEditor drawing functionality. More... | |
Public Types | |
enum | ColourIds { backgroundColourId = 0x1000200 , textColourId = 0x1000201 , highlightColourId = 0x1000202 , highlightedTextColourId = 0x1000203 , outlineColourId = 0x1000205 , focusedOutlineColourId = 0x1000206 , shadowColourId = 0x1000207 } |
A set of colour IDs to use to change the colour of various aspects of the editor. More... | |
Public Member Functions | |
SingleLineTextEditor (const juce::String &componentName=juce::String()) | |
Creates a new, empty text editor. More... | |
~SingleLineTextEditor () override | |
Destructor. More... | |
void | setTabKeyUsedAsCharacter (bool shouldTabKeyBeUsed) |
Indicates whether the tab key should be accepted and used to input a tab character, or whether it gets ignored. More... | |
bool | isTabKeyUsedAsCharacter () const |
Returns true if the tab key is being used for input. More... | |
void | setEscapeAndReturnKeysConsumed (bool shouldBeConsumed) noexcept |
This can be used to change whether escape and return keypress events are propagated up to the parent component. More... | |
void | setReadOnly (bool shouldBeReadOnly) |
Changes the editor to read-only mode. More... | |
bool | isReadOnly () const noexcept |
Returns true if the editor is in read-only mode. More... | |
void | setCaretVisible (bool shouldBeVisible) |
Makes the caret visible or invisible. More... | |
bool | isCaretVisible () const noexcept |
Returns true if the caret is enabled. More... | |
void | setPopupMenuEnabled (bool menuEnabled) |
Allows a right-click menu to appear for the editor. More... | |
bool | isPopupMenuEnabled () const noexcept |
Returns true if the right-click menu is enabled. More... | |
bool | isPopupMenuCurrentlyActive () const noexcept |
Returns true if a popup-menu is currently being displayed. More... | |
void | setFont (const juce::Font &newFont) |
Sets the font to use for newly added text. More... | |
void | applyFontToAllText (const juce::Font &newFont) |
Applies a font to all the text in the editor. More... | |
const juce::Font & | getFont () const noexcept |
Returns the font that's currently being used for new text. More... | |
void | setJustificationType (juce::Justification just) |
void | setSelectAllWhenFocused (bool shouldSelectAll) |
If set to true, focusing on the editor will highlight all its text. More... | |
void | setTextToShowWhenEmpty (const juce::String &text, juce::Colour colourToUse) |
When the text editor is empty, it can be set to display a message. More... | |
void | addListener (SingleLineTextEditor::Listener *newListener) |
Registers a listener to be told when things happen to the text. More... | |
void | removeListener (SingleLineTextEditor::Listener *listenerToRemove) |
Deregisters a listener. More... | |
juce::String | getText () const |
Returns the entire contents of the editor. More... | |
juce::String | getTextInRange (const juce::Range< int > &textRange) const override |
Returns a section of the contents of the editor. More... | |
bool | isEmpty () const |
Returns true if there are no characters in the editor. More... | |
void | setText (const juce::String &newText, bool sendTextChangeMessage=true) |
Sets the entire content of the editor. More... | |
juce::Value & | getTextValue () |
Returns a Value object that can be used to get or set the text. More... | |
void | insertTextAtCaret (const juce::String &textToInsert) override |
Inserts some text at the current caret position. More... | |
void | clear () |
Deletes all the text from the editor. More... | |
void | cut () |
Deletes the currently selected region. More... | |
void | copy () |
Copies the currently selected region to the clipboard. More... | |
void | paste () |
Pastes the contents of the clipboard into the editor at the caret position. More... | |
int | getCaretPosition () const override |
Returns the current index of the caret. More... | |
void | setCaretPosition (int newIndex) |
Moves the caret to be in front of a given character. More... | |
juce::Rectangle< int > | getCaretRectangleForCharIndex (int index) const override |
Get the graphical position of the caret. More... | |
void | setHighlightedRegion (const juce::Range< int > &newSelection) override |
Selects a section of the text. More... | |
juce::Range< int > | getHighlightedRegion () const override |
Returns the range of characters that are selected. More... | |
juce::String | getHighlightedText () const |
Returns the section of text that is currently selected. More... | |
int | getTextIndexAt (int x, int y) |
Finds the index of the character at a given position. More... | |
int | getTotalNumChars () const override |
Counts the number of characters in the text. More... | |
int | getTextWidth () const |
Returns the total width of the text, as it is currently laid-out. More... | |
int | getTextHeight () const |
Returns the maximum height of the text, as it is currently laid-out. More... | |
void | moveCaretToEnd () |
bool | moveCaretLeft (bool moveInWholeWordSteps, bool selecting) |
bool | moveCaretRight (bool moveInWholeWordSteps, bool selecting) |
bool | moveCaretUp (bool selecting) |
bool | moveCaretDown (bool selecting) |
bool | pageUp (bool selecting) |
bool | pageDown (bool selecting) |
bool | scrollDown () |
bool | scrollUp () |
bool | moveCaretToTop (bool selecting) |
bool | moveCaretToStartOfLine (bool selecting) |
bool | moveCaretToEnd (bool selecting) |
bool | moveCaretToEndOfLine (bool selecting) |
bool | deleteBackwards (bool moveInWholeWordSteps) |
bool | deleteForwards (bool moveInWholeWordSteps) |
bool | copyToClipboard () |
bool | cutToClipboard () |
bool | pasteFromClipboard () |
bool | selectAll () |
bool | undo () |
bool | redo () |
virtual void | addPopupMenuItems (juce::PopupMenu &menuToAddTo, const juce::MouseEvent *mouseClickEvent) |
This adds the items to the popup menu. More... | |
virtual void | performPopupMenuAction (int menuItemID) |
This is called to perform one of the items that was shown on the popup menu. More... | |
void | setInputFilter (InputFilter *newFilter, bool takeOwnership) |
Sets an input filter that should be applied to this editor. More... | |
InputFilter * | getInputFilter () const noexcept |
Returns the current InputFilter, as set by setInputFilter(). More... | |
void | setInputRestrictions (int maxTextLength, const juce::String &allowedCharacters=juce::String()) |
Sets limits on the characters that can be entered. More... | |
void | setKeyboardType (VirtualKeyboardType type) noexcept |
void | paint (juce::Graphics &) override |
void | paintOverChildren (juce::Graphics &) override |
void | mouseDown (const juce::MouseEvent &) override |
void | mouseUp (const juce::MouseEvent &) override |
void | mouseDrag (const juce::MouseEvent &) override |
void | mouseDoubleClick (const juce::MouseEvent &) override |
void | mouseWheelMove (const juce::MouseEvent &, const juce::MouseWheelDetails &) override |
bool | keyPressed (const juce::KeyPress &) override |
bool | keyStateChanged (bool) override |
void | focusGained (FocusChangeType) override |
void | focusLost (FocusChangeType) override |
void | resized () override |
void | enablementChanged () override |
void | colourChanged () override |
void | lookAndFeelChanged () override |
bool | isTextInputActive () const override |
void | setTemporaryUnderlining (const juce::Array< juce::Range< int > > &) override |
VirtualKeyboardType | getKeyboardType () override |
Protected Member Functions | |
void | textChanged () |
Used internally to dispatch a text-change message. More... | |
void | newTransaction () |
Begins a new transaction in the UndoManager. More... | |
virtual void | returnPressed () |
Can be overridden to intercept return key presses directly. More... | |
virtual void | escapePressed () |
Can be overridden to intercept escape key presses directly. More... | |
An editable text box.
A TextEditor can either be in single- or multi-line mode, and supports mixed fonts and colours.
This is a hacked up version of the JUCE TextEditor that supports all justification modes
A set of colour IDs to use to change the colour of various aspects of the editor.
These constants can be used either via the Component::setColour(), or LookAndFeel::setColour() methods.
NB: You can also set the caret colour using CaretComponent::caretColourId
Enumerator | |
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backgroundColourId | The colour to use for the text component's background - this can be transparent if necessary. |
textColourId | The colour that will be used when text is added to the editor. Note that because the editor can contain multiple colours, calling this method won't change the colour of existing text - to do that, call applyFontToAllText() after calling this method. |
highlightColourId | The colour with which to fill the background of highlighted sections of the text - this can be transparent if you don't want to show any highlighting. |
highlightedTextColourId | The colour with which to draw the text in highlighted sections. |
outlineColourId | If this is non-transparent, it will be used to draw a box around the edge of the component. |
focusedOutlineColourId | If this is non-transparent, it will be used to draw a box around the edge of the component when it has focus. |
shadowColourId | If this is non-transparent, it'll be used to draw an inner shadow around the edge of the editor. |
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explicit |
Creates a new, empty text editor.
componentName | the name to pass to the component for it to use as its name |
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override |
Destructor.
void SingleLineTextEditor::setTabKeyUsedAsCharacter | ( | bool | shouldTabKeyBeUsed | ) |
Indicates whether the tab key should be accepted and used to input a tab character, or whether it gets ignored.
By default the tab key is ignored, so that it can be used to switch keyboard focus between components.
bool SingleLineTextEditor::isTabKeyUsedAsCharacter | ( | ) | const |
Returns true if the tab key is being used for input.
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noexcept |
This can be used to change whether escape and return keypress events are propagated up to the parent component.
The default here is true, meaning that these events are not allowed to reach the parent, but you may want to allow them through so that they can trigger other actions, e.g. closing a dialog box, etc.
void SingleLineTextEditor::setReadOnly | ( | bool | shouldBeReadOnly | ) |
Changes the editor to read-only mode.
By default, the text editor is not read-only. If you're making it read-only, you might also want to call setCaretVisible (false) to get rid of the caret.
The text can still be highlighted and copied when in read-only mode.
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noexcept |
Returns true if the editor is in read-only mode.
Referenced by isCaretVisible().
void SingleLineTextEditor::setCaretVisible | ( | bool | shouldBeVisible | ) |
Makes the caret visible or invisible.
By default the caret is visible.
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noexcept |
void SingleLineTextEditor::setPopupMenuEnabled | ( | bool | menuEnabled | ) |
Allows a right-click menu to appear for the editor.
(This defaults to being enabled).
If enabled, right-clicking (or command-clicking on the Mac) will pop up a menu of options such as cut/copy/paste, undo/redo, etc.
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noexcept |
Returns true if the right-click menu is enabled.
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noexcept |
Returns true if a popup-menu is currently being displayed.
void SingleLineTextEditor::setFont | ( | const juce::Font & | newFont | ) |
Sets the font to use for newly added text.
This will change the font that will be used next time any text is added or entered into the editor. It won't change the font of any existing text - to do that, use applyFontToAllText() instead.
void SingleLineTextEditor::applyFontToAllText | ( | const juce::Font & | newFont | ) |
Applies a font to all the text in the editor.
This will also set the current font to use for any new text that's added.
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noexcept |
Returns the font that's currently being used for new text.
void SingleLineTextEditor::setJustificationType | ( | juce::Justification | just | ) |
void SingleLineTextEditor::setSelectAllWhenFocused | ( | bool | shouldSelectAll | ) |
If set to true, focusing on the editor will highlight all its text.
(Set to false by default).
This is useful for boxes where you expect the user to re-enter all the text when they focus on the component, rather than editing what's already there.
void SingleLineTextEditor::setTextToShowWhenEmpty | ( | const juce::String & | text, |
juce::Colour | colourToUse | ||
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When the text editor is empty, it can be set to display a message.
This is handy for things like telling the user what to type in the box - the string is only displayed, it's not taken to actually be the contents of the editor.
void SingleLineTextEditor::addListener | ( | SingleLineTextEditor::Listener * | newListener | ) |
Registers a listener to be told when things happen to the text.
void SingleLineTextEditor::removeListener | ( | SingleLineTextEditor::Listener * | listenerToRemove | ) |
Deregisters a listener.
juce::String SingleLineTextEditor::getText | ( | ) | const |
Returns the entire contents of the editor.
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Returns a section of the contents of the editor.
bool SingleLineTextEditor::isEmpty | ( | ) | const |
void SingleLineTextEditor::setText | ( | const juce::String & | newText, |
bool | sendTextChangeMessage = true |
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Sets the entire content of the editor.
This will clear the editor and insert the given text (using the current text colour and font). You can set the current text colour using
newText | the text to add |
sendTextChangeMessage | if true, this will cause a change message to be sent to all the listeners. |
juce::Value& SingleLineTextEditor::getTextValue | ( | ) |
Returns a Value object that can be used to get or set the text.
Bear in mind that this operate quite slowly if your text box contains large amounts of text, as it needs to dynamically build the string that's involved. It's best used for small text boxes.
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Inserts some text at the current caret position.
If a section of the text is highlighted, it will be replaced by this string, otherwise it will be inserted.
To delete a section of text, you can use setHighlightedRegion() to highlight it, and call insertTextAtCaret (String()).
void SingleLineTextEditor::clear | ( | ) |
Deletes all the text from the editor.
void SingleLineTextEditor::cut | ( | ) |
Deletes the currently selected region.
This doesn't copy the deleted section to the clipboard - if you need to do that, call copy() first.
void SingleLineTextEditor::copy | ( | ) |
Copies the currently selected region to the clipboard.
void SingleLineTextEditor::paste | ( | ) |
Pastes the contents of the clipboard into the editor at the caret position.
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Returns the current index of the caret.
void SingleLineTextEditor::setCaretPosition | ( | int | newIndex | ) |
Moves the caret to be in front of a given character.
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Get the graphical position of the caret.
The rectangle returned is relative to the component's top-left corner.
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Selects a section of the text.
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Returns the range of characters that are selected.
If nothing is selected, this will return an empty range.
juce::String SingleLineTextEditor::getHighlightedText | ( | ) | const |
Returns the section of text that is currently selected.
int SingleLineTextEditor::getTextIndexAt | ( | int | x, |
int | y | ||
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Finds the index of the character at a given position.
The coordinates are relative to the component's top-left.
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Counts the number of characters in the text.
This is quicker than getting the text as a string if you just need to know the length.
int SingleLineTextEditor::getTextWidth | ( | ) | const |
Returns the total width of the text, as it is currently laid-out.
This may be larger than the size of the TextEditor, and can change when the TextEditor is resized or the text changes.
int SingleLineTextEditor::getTextHeight | ( | ) | const |
Returns the maximum height of the text, as it is currently laid-out.
This may be larger than the size of the TextEditor, and can change when the TextEditor is resized or the text changes.
void SingleLineTextEditor::moveCaretToEnd | ( | ) |
bool SingleLineTextEditor::moveCaretLeft | ( | bool | moveInWholeWordSteps, |
bool | selecting | ||
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bool SingleLineTextEditor::moveCaretRight | ( | bool | moveInWholeWordSteps, |
bool | selecting | ||
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bool SingleLineTextEditor::moveCaretUp | ( | bool | selecting | ) |
bool SingleLineTextEditor::moveCaretDown | ( | bool | selecting | ) |
bool SingleLineTextEditor::pageUp | ( | bool | selecting | ) |
bool SingleLineTextEditor::pageDown | ( | bool | selecting | ) |
bool SingleLineTextEditor::scrollDown | ( | ) |
bool SingleLineTextEditor::scrollUp | ( | ) |
bool SingleLineTextEditor::moveCaretToTop | ( | bool | selecting | ) |
bool SingleLineTextEditor::moveCaretToStartOfLine | ( | bool | selecting | ) |
bool SingleLineTextEditor::moveCaretToEnd | ( | bool | selecting | ) |
bool SingleLineTextEditor::moveCaretToEndOfLine | ( | bool | selecting | ) |
bool SingleLineTextEditor::deleteBackwards | ( | bool | moveInWholeWordSteps | ) |
bool SingleLineTextEditor::deleteForwards | ( | bool | moveInWholeWordSteps | ) |
bool SingleLineTextEditor::copyToClipboard | ( | ) |
bool SingleLineTextEditor::cutToClipboard | ( | ) |
bool SingleLineTextEditor::pasteFromClipboard | ( | ) |
bool SingleLineTextEditor::selectAll | ( | ) |
bool SingleLineTextEditor::undo | ( | ) |
bool SingleLineTextEditor::redo | ( | ) |
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This adds the items to the popup menu.
By default it adds the cut/copy/paste items, but you can override this if you need to replace these with your own items.
If you want to add your own items to the existing ones, you can override this, call the base class's addPopupMenuItems() method, then append your own items.
When the menu has been shown, performPopupMenuAction() will be called to perform the item that the user has chosen.
The default menu items will be added using item IDs from the StandardApplicationCommandIDs namespace.
If this was triggered by a mouse-click, the mouseClickEvent parameter will be a pointer to the info about it, or may be null if the menu is being triggered by some other means.
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This is called to perform one of the items that was shown on the popup menu.
If you've overridden addPopupMenuItems(), you should also override this to perform the actions that you've added.
If you've overridden addPopupMenuItems() but have still left the default items on the menu, remember to call the superclass's performPopupMenuAction() so that it can perform the default actions if that's what the user clicked on.
void SingleLineTextEditor::setInputFilter | ( | InputFilter * | newFilter, |
bool | takeOwnership | ||
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Sets an input filter that should be applied to this editor.
The filter can be nullptr, to remove any existing filters. If takeOwnership is true, then the filter will be owned and deleted by the editor when no longer needed.
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noexcept |
Returns the current InputFilter, as set by setInputFilter().
void SingleLineTextEditor::setInputRestrictions | ( | int | maxTextLength, |
const juce::String & | allowedCharacters = juce::String() |
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Sets limits on the characters that can be entered.
This is just a shortcut that passes an instance of the LengthAndCharacterRestriction class to setInputFilter().
maxTextLength | if this is > 0, it sets a maximum length limit; if 0, no limit is set |
allowedCharacters | if this is non-empty, then only characters that occur in this string are allowed to be entered into the editor. |
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Used internally to dispatch a text-change message.
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Begins a new transaction in the UndoManager.
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Can be overridden to intercept return key presses directly.
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Can be overridden to intercept escape key presses directly.