273 lines
8.8 KiB
C
273 lines
8.8 KiB
C
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////////////////////////////////////////////////////////////////////////////////////////////////////
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// NoesisGUI - http://www.noesisengine.com
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// Copyright (c) 2013 Noesis Technologies S.L. All Rights Reserved.
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifndef __GUI_TEXTBOX_H__
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#define __GUI_TEXTBOX_H__
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#include <NsCore/Noesis.h>
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#include <NsGui/BaseTextBox.h>
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#include <NsGui/CompositionUnderline.h>
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#include <NsCore/Vector.h>
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namespace Noesis
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{
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class ScrollViewer;
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class TextBoxTextContainer;
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enum TextAlignment: int32_t;
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enum TextWrapping: int32_t;
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struct Typography;
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NS_WARNING_PUSH
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NS_MSVC_WARNING_DISABLE(4251 4275)
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// Represents a control that can be used to display or edit unformatted text.
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///
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/// http://msdn.microsoft.com/en-us/library/system.windows.controls.textbox.aspx
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////////////////////////////////////////////////////////////////////////////////////////////////////
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class NS_GUI_CORE_API TextBox: public BaseTextBox
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{
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public:
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TextBox();
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~TextBox();
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/// Gets or sets the insertion position index of the caret
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//@{
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int32_t GetCaretIndex() const;
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void SetCaretIndex(int32_t caretIndex);
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//@}
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/// Gets or sets the maximum number of characters that can be manually entered into the text box
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//@{
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int32_t GetMaxLength() const;
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void SetMaxLength(int32_t length);
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//@}
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/// Gets or sets the maximum number of visible lines
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//@{
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int32_t GetMaxLines() const;
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void SetMaxLines(int32_t lines);
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//@}
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/// Gets or sets the minimum number of visible lines
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//@{
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int32_t GetMinLines() const;
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void SetMinLines(int32_t lines);
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//@}
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/// Gets or sets the placeholder text
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//@{
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const char* GetPlaceholder() const;
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void SetPlaceholder(const char* text);
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//@}
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/// Gets or sets the content of the current selection in the text box
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/// \remarks Returned string must be copied becuase it will be invalidated next time you
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/// interact with the text box
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/// \prop
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//@{
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const char* GetSelectedText() const;
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void SetSelectedText(const char* text);
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//@}
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/// Gets or sets a value indicating the number of characters in the current selection in the
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/// text box
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/// \prop
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//@{
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int32_t GetSelectionLength() const;
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void SetSelectionLength(int32_t len);
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//@}
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/// Gets or sets a character index for the beginning of the current selection
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/// \prop
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//@{
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int32_t GetSelectionStart() const;
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void SetSelectionStart(int32_t pos);
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//@}
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/// Selects all text
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void SelectAll();
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/// Select the text in the given position and length
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void Select(int32_t start, int32_t length);
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/// Clear all the content in the TextBox control
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void Clear();
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/// Return the 0-based character index of the given point. If there is no character
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/// at that point and snapToText is false, return -1. Point is specified in TextBox coordinates
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int32_t GetCharacterIndexFromPoint(Point point, bool snapToText) const;
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/// Return the 0-based character index of the first character of lineIndex, or -1 if no layout
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/// information is available
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int32_t GetCharacterIndexFromLineIndex(int32_t lineIndex) const;
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/// Return the 0-based index of the line containing the given character index, or -1 if no
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/// layout information is available
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int32_t GetLineIndexFromCharacterIndex(int32_t charIndex) const;
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/// Return the number of characters in the given line, or -1 if no
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/// layout information is available
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int32_t GetLineLength(int32_t lineIndex) const;
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/// Return the index of the first line that is currently visible in the TextBox, or -1 if no
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/// layout information is available
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int32_t GetFirstVisibleLineIndex() const;
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/// Return the index of the last line that is currently visible in the TextBox, or -1 if no
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/// layout information is available
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int32_t GetLastVisibleLineIndex() const;
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/// Scroll the minimal amount necessary to bring the given line into full view.
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void ScrollToLine(int32_t lineIndex);
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/// Gets or sets the horizontal alignment of the contents of the text box
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//@{
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TextAlignment GetTextAlignment() const;
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void SetTextAlignment(TextAlignment textAlign);
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//@}
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/// Gets or sets the text contents of the text box
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//@{
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const char* GetText() const;
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void SetText(const char* text);
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//@}
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/// Gets or sets how the text box should wrap text
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//@{
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TextWrapping GetTextWrapping() const;
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void SetTextWrapping(TextWrapping textWrap);
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//@}
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/// Gets the visual that renders the text of the TextBox
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Visual* GetTextView() const;
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/// Calculates the bounding box of a range of text
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Rect GetRangeBounds(uint32_t start, uint32_t end) const;
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/// Removes the caret until control gets focused again
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void HideCaret();
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/// Returns the number of IME composition underlines
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uint32_t GetNumCompositionUnderlines() const;
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/// Gets the specified IME composition underline
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const CompositionUnderline& GetCompositionUnderline(uint32_t index) const;
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/// Adds a new IME composition underline
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void AddCompositionUnderline(const CompositionUnderline& compositionUnderline);
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/// Removes all IME composition underlines
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void ClearCompositionUnderlines();
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/// Gets the currently effective typography variations for the text contents of this TextBox
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/// \prop
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Typography GetTypography() const;
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public:
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/// Dependency properties
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//@{
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static const DependencyProperty* MaxLengthProperty;
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static const DependencyProperty* MaxLinesProperty;
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static const DependencyProperty* MinLinesProperty;
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static const DependencyProperty* PlaceholderProperty;
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static const DependencyProperty* TextAlignmentProperty;
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static const DependencyProperty* TextProperty;
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static const DependencyProperty* TextWrappingProperty;
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//@}
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protected:
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// From DependencyObject
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//@{
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bool OnPropertyChanged(const DependencyPropertyChangedEventArgs& args) override;
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//@}
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// From UIElement
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//@{
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void OnKeyDown(const KeyEventArgs& e) override;
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void OnTextInput(const TextCompositionEventArgs& e) override;
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void OnGotKeyboardFocus(const KeyboardFocusChangedEventArgs& e) override;
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void OnLostKeyboardFocus(const KeyboardFocusChangedEventArgs& e) override;
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void OnMouseLeftButtonDown(const MouseButtonEventArgs& e) override;
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void OnMouseLeftButtonUp(const MouseButtonEventArgs& e) override;
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void OnMouseRightButtonDown(const MouseButtonEventArgs& e) override;
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void OnMouseMove(const MouseEventArgs& e) override;
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void OnTouchDown(const TouchEventArgs& e) override;
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void OnTapped(const TappedEventArgs& e) override;
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void OnDoubleTapped(const DoubleTappedEventArgs& e) override;
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//@}
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// From FrameworkElement
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//@{
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Size MeasureOverride(const Size& availableSize) override;
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//@}
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// From Control
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//@{
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void OnTemplateChanged(FrameworkTemplate* oldTemplate, FrameworkElement* oldRoot,
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FrameworkTemplate* newTemplate, FrameworkElement* newRoot) override;
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void OnFontFamilyChanged(FontFamily* fontFamily) override;
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void OnFontSizeChanged(float fontSize) override;
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void OnFontStretchChanged(FontStretch fontStretch) override;
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void OnFontStyleChanged(FontStyle fontStyle) override;
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void OnFontWeightChanged(FontWeight fontWeight) override;
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void OnForegroundChanged(Brush* brush) override;
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void OnMouseDoubleClick(const MouseButtonEventArgs& e) override;
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void OnIsFocusEngagedChanged(bool engaged) override;
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//@}
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// From BaseTextBox
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//@{
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void OnCaretBrushChanged(Brush* oldBrush, Brush* newBrush) override;
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void OnSelectionBrushChanged(Brush* oldBrush, Brush* newBrush) override;
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void OnSelectionOpacityChanged(float oldOpacity, float newOpacity) override;
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void OnIsReadOnlyChanged(bool oldValue, bool newValue) override;
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void DoLineUp(ScrollViewer* scrollViewer) override;
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void DoLineDown(ScrollViewer* scrollViewer) override;
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ScrollViewer* GetScrollViewer() const override;
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//@}
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private:
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friend class ComboBox;
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void UpdateContentHostHeight();
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void UpdateContentHostHeight(float padding);
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void EnableFocus();
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void DisableFocus();
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private:
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Ptr<FrameworkElement> mContentHost;
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TextBoxTextContainer* mTextContainer;
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typedef Vector<CompositionUnderline> CompositionUnderlines;
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CompositionUnderlines mCompositionUnderlines;
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union
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{
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mutable struct
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{
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bool mouseDown : 1;
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bool updateContentHostMinMax : 1;
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} mFlags;
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// To quickly set all flags to 0
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mutable uint8_t mAllFlags;
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};
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NS_DECLARE_REFLECTION(TextBox, BaseTextBox)
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};
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NS_WARNING_POP
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}
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#endif
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