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wxWidgets/interface/wx/textctrl.h

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/////////////////////////////////////////////////////////////////////////////
// Name: textctrl.h
// Purpose: interface of wxTextAttr
// Author: wxWidgets team
// RCS-ID: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
/**
wxTextCtrl style flags
*/
#define wxTE_NO_VSCROLL 0x0002
#define wxTE_READONLY 0x0010
#define wxTE_MULTILINE 0x0020
#define wxTE_PROCESS_TAB 0x0040
// alignment flags
#define wxTE_LEFT 0x0000 // 0x0000
#define wxTE_CENTER wxALIGN_CENTER_HORIZONTAL // 0x0100
#define wxTE_RIGHT wxALIGN_RIGHT // 0x0200
#define wxTE_CENTRE wxTE_CENTER
// this style means to use RICHEDIT control and does something only under wxMSW
// and Win32 and is silently ignored under all other platforms
#define wxTE_RICH 0x0080
#define wxTE_PROCESS_ENTER 0x0400
#define wxTE_PASSWORD 0x0800
// automatically detect the URLs and generate the events when mouse is
// moved/clicked over an URL
//
// this is for Win32 richedit and wxGTK2 multiline controls only so far
#define wxTE_AUTO_URL 0x1000
// by default, the Windows text control doesn't show the selection when it
// doesn't have focus - use this style to force it to always show it
#define wxTE_NOHIDESEL 0x2000
// use wxHSCROLL to not wrap text at all, wxTE_CHARWRAP to wrap it at any
// position and wxTE_WORDWRAP to wrap at words boundary
//
// if no wrapping style is given at all, the control wraps at word boundary
#define wxTE_DONTWRAP wxHSCROLL
#define wxTE_CHARWRAP 0x4000 // wrap at any position
#define wxTE_WORDWRAP 0x0001 // wrap only at words boundaries
#define wxTE_BESTWRAP 0x0000 // this is the default
// force using RichEdit version 2.0 or 3.0 instead of 1.0 (default) for
// wxTE_RICH controls - can be used together with or instead of wxTE_RICH
#define wxTE_RICH2 0x8000
#define wxTEXT_TYPE_ANY 0
/**
wxTextCoord is a line or row number
*/
typedef long wxTextCoord;
/**
One of the following values can be passed to wxTextAttr::SetAlignment to determine paragraph alignment.
*/
enum wxTextAttrAlignment
{
wxTEXT_ALIGNMENT_DEFAULT,
wxTEXT_ALIGNMENT_LEFT,
wxTEXT_ALIGNMENT_CENTRE,
wxTEXT_ALIGNMENT_CENTER = wxTEXT_ALIGNMENT_CENTRE,
wxTEXT_ALIGNMENT_RIGHT,
/** wxTEXT_ALIGNMENT_JUSTIFIED is unimplemented.
In future justification may be supported when printing or previewing, only. */
wxTEXT_ALIGNMENT_JUSTIFIED
};
/**
The following values are passed in a bitlist to wxTextAttr::SetFlags() to
determine what attributes will be considered when setting the attributes for a text control.
*/
enum wxTextAttrFlags
{
wxTEXT_ATTR_TEXT_COLOUR = 0x00000001,
wxTEXT_ATTR_BACKGROUND_COLOUR = 0x00000002,
wxTEXT_ATTR_FONT_FACE = 0x00000004,
wxTEXT_ATTR_FONT_POINT_SIZE = 0x00000008,
wxTEXT_ATTR_FONT_PIXEL_SIZE = 0x10000000,
wxTEXT_ATTR_FONT_WEIGHT = 0x00000010,
wxTEXT_ATTR_FONT_ITALIC = 0x00000020,
wxTEXT_ATTR_FONT_UNDERLINE = 0x00000040,
wxTEXT_ATTR_FONT_STRIKETHROUGH = 0x08000000,
wxTEXT_ATTR_FONT_ENCODING = 0x02000000,
wxTEXT_ATTR_FONT_FAMILY = 0x04000000,
wxTEXT_ATTR_FONT_SIZE = \
( wxTEXT_ATTR_FONT_POINT_SIZE | wxTEXT_ATTR_FONT_PIXEL_SIZE ),
/**
Defined as the combination of all @c wxTEXT_ATTR_FONT_* values above.
*/
wxTEXT_ATTR_FONT = \
( wxTEXT_ATTR_FONT_FACE | wxTEXT_ATTR_FONT_SIZE | wxTEXT_ATTR_FONT_WEIGHT | \
wxTEXT_ATTR_FONT_ITALIC | wxTEXT_ATTR_FONT_UNDERLINE | wxTEXT_ATTR_FONT_STRIKETHROUGH | wxTEXT_ATTR_FONT_ENCODING | wxTEXT_ATTR_FONT_FAMILY ),
wxTEXT_ATTR_ALIGNMENT = 0x00000080,
wxTEXT_ATTR_LEFT_INDENT = 0x00000100,
wxTEXT_ATTR_RIGHT_INDENT = 0x00000200,
wxTEXT_ATTR_TABS = 0x00000400,
wxTEXT_ATTR_PARA_SPACING_AFTER = 0x00000800,
wxTEXT_ATTR_PARA_SPACING_BEFORE = 0x00001000,
wxTEXT_ATTR_LINE_SPACING = 0x00002000,
wxTEXT_ATTR_CHARACTER_STYLE_NAME = 0x00004000,
wxTEXT_ATTR_PARAGRAPH_STYLE_NAME = 0x00008000,
wxTEXT_ATTR_LIST_STYLE_NAME = 0x00010000,
wxTEXT_ATTR_BULLET_STYLE = 0x00020000,
wxTEXT_ATTR_BULLET_NUMBER = 0x00040000,
wxTEXT_ATTR_BULLET_TEXT = 0x00080000,
wxTEXT_ATTR_BULLET_NAME = 0x00100000,
/**
Defined as the combination of all @c wxTEXT_ATTR_BULLET_* values above.
*/
wxTEXT_ATTR_BULLET = \
( wxTEXT_ATTR_BULLET_STYLE | wxTEXT_ATTR_BULLET_NUMBER | wxTEXT_ATTR_BULLET_TEXT | \
wxTEXT_ATTR_BULLET_NAME ),
wxTEXT_ATTR_URL = 0x00200000,
wxTEXT_ATTR_PAGE_BREAK = 0x00400000,
wxTEXT_ATTR_EFFECTS = 0x00800000,
wxTEXT_ATTR_OUTLINE_LEVEL = 0x01000000,
/**
Combines the styles @c wxTEXT_ATTR_FONT, @c wxTEXT_ATTR_EFFECTS, @c wxTEXT_ATTR_BACKGROUND_COLOUR,
@c wxTEXT_ATTR_TEXT_COLOUR, @c wxTEXT_ATTR_CHARACTER_STYLE_NAME, @c wxTEXT_ATTR_URL.
*/
wxTEXT_ATTR_CHARACTER = \
(wxTEXT_ATTR_FONT|wxTEXT_ATTR_EFFECTS| \
wxTEXT_ATTR_BACKGROUND_COLOUR|wxTEXT_ATTR_TEXT_COLOUR|wxTEXT_ATTR_CHARACTER_STYLE_NAME|wxTEXT_ATTR_URL),
/**
Combines all the styles regarding text paragraphs.
*/
wxTEXT_ATTR_PARAGRAPH = \
(wxTEXT_ATTR_ALIGNMENT|wxTEXT_ATTR_LEFT_INDENT|wxTEXT_ATTR_RIGHT_INDENT|wxTEXT_ATTR_TABS|\
wxTEXT_ATTR_PARA_SPACING_BEFORE|wxTEXT_ATTR_PARA_SPACING_AFTER|wxTEXT_ATTR_LINE_SPACING|\
wxTEXT_ATTR_BULLET|wxTEXT_ATTR_PARAGRAPH_STYLE_NAME|wxTEXT_ATTR_LIST_STYLE_NAME|wxTEXT_ATTR_OUTLINE_LEVEL),
/**
Combines all previous values.
*/
wxTEXT_ATTR_ALL = (wxTEXT_ATTR_CHARACTER|wxTEXT_ATTR_PARAGRAPH)
};
/**
Styles for wxTextAttr::SetBulletStyle. They can be combined together as a bitlist.
*/
enum wxTextAttrBulletStyle
{
wxTEXT_ATTR_BULLET_STYLE_NONE = 0x00000000,
wxTEXT_ATTR_BULLET_STYLE_ARABIC = 0x00000001,
wxTEXT_ATTR_BULLET_STYLE_LETTERS_UPPER = 0x00000002,
wxTEXT_ATTR_BULLET_STYLE_LETTERS_LOWER = 0x00000004,
wxTEXT_ATTR_BULLET_STYLE_ROMAN_UPPER = 0x00000008,
wxTEXT_ATTR_BULLET_STYLE_ROMAN_LOWER = 0x00000010,
wxTEXT_ATTR_BULLET_STYLE_SYMBOL = 0x00000020,
/** wxTEXT_ATTR_BULLET_STYLE_BITMAP is unimplemented. */
wxTEXT_ATTR_BULLET_STYLE_BITMAP = 0x00000040,
wxTEXT_ATTR_BULLET_STYLE_PARENTHESES = 0x00000080,
wxTEXT_ATTR_BULLET_STYLE_PERIOD = 0x00000100,
wxTEXT_ATTR_BULLET_STYLE_STANDARD = 0x00000200,
wxTEXT_ATTR_BULLET_STYLE_RIGHT_PARENTHESIS = 0x00000400,
wxTEXT_ATTR_BULLET_STYLE_OUTLINE = 0x00000800,
wxTEXT_ATTR_BULLET_STYLE_ALIGN_LEFT = 0x00000000,
wxTEXT_ATTR_BULLET_STYLE_ALIGN_RIGHT = 0x00001000,
wxTEXT_ATTR_BULLET_STYLE_ALIGN_CENTRE = 0x00002000,
wxTEXT_ATTR_BULLET_STYLE_CONTINUATION = 0x00004000
};
/**
Styles for wxTextAttr::SetTextEffects(). They can be combined together as a bitlist.
Of these, only wxTEXT_ATTR_EFFECT_CAPITALS, wxTEXT_ATTR_EFFECT_STRIKETHROUGH,
wxTEXT_ATTR_EFFECT_SUPERSCRIPT and wxTEXT_ATTR_EFFECT_SUBSCRIPT are implemented.
*/
enum wxTextAttrEffects
{
wxTEXT_ATTR_EFFECT_NONE = 0x00000000,
wxTEXT_ATTR_EFFECT_CAPITALS = 0x00000001,
wxTEXT_ATTR_EFFECT_SMALL_CAPITALS = 0x00000002,
wxTEXT_ATTR_EFFECT_STRIKETHROUGH = 0x00000004,
wxTEXT_ATTR_EFFECT_DOUBLE_STRIKETHROUGH = 0x00000008,
wxTEXT_ATTR_EFFECT_SHADOW = 0x00000010,
wxTEXT_ATTR_EFFECT_EMBOSS = 0x00000020,
wxTEXT_ATTR_EFFECT_OUTLINE = 0x00000040,
wxTEXT_ATTR_EFFECT_ENGRAVE = 0x00000080,
wxTEXT_ATTR_EFFECT_SUPERSCRIPT = 0x00000100,
wxTEXT_ATTR_EFFECT_SUBSCRIPT = 0x00000200
};
/**
Convenience line spacing values; see wxTextAttr::SetLineSpacing().
*/
enum wxTextAttrLineSpacing
{
wxTEXT_ATTR_LINE_SPACING_NORMAL = 10,
wxTEXT_ATTR_LINE_SPACING_HALF = 15,
wxTEXT_ATTR_LINE_SPACING_TWICE = 20
};
/**
Describes the possible return values of wxTextCtrl::HitTest().
The element names correspond to the relationship between the point asked
for and the character returned, e.g. @c wxTE_HT_BEFORE means that the point
is before (leftward or upward) it and so on.
*/
enum wxTextCtrlHitTestResult
{
/// Indicates that wxTextCtrl::HitTest() is not implemented on this
/// platform.
wxTE_HT_UNKNOWN = -2,
/// The point is before the character returned.
wxTE_HT_BEFORE,
/// The point is directly on the character returned.
wxTE_HT_ON_TEXT,
/// The point is below the last line of the control.
wxTE_HT_BELOW,
/// The point is beyond the end of line containing the character returned.
wxTE_HT_BEYOND
};
/**
@class wxTextAttr
wxTextAttr represents the character and paragraph attributes, or style,
for a range of text in a wxTextCtrl or wxRichTextCtrl.
When setting up a wxTextAttr object, pass a bitlist mask to
wxTextAttr::SetFlags() to indicate which style elements should be changed.
As a convenience, when you call a setter such as SetFont, the relevant bit
will be set.
@library{wxcore}
@category{richtext}
@see wxTextCtrl, wxRichTextCtrl
*/
class wxTextAttr
{
public:
//@{
/**
Constructors.
*/
wxTextAttr();
wxTextAttr(const wxColour& colText,
const wxColour& colBack = wxNullColour,
const wxFont& font = wxNullFont,
wxTextAttrAlignment alignment = wxTEXT_ALIGNMENT_DEFAULT);
wxTextAttr(const wxTextAttr& attr);
//@}
/**
Applies the attributes in @a style to the original object, but not those
attributes from @a style that are the same as those in @a compareWith (if passed).
*/
bool Apply(const wxTextAttr& style,
const wxTextAttr* compareWith = NULL);
/**
Copies all defined/valid properties from overlay to current object.
*/
void Merge(const wxTextAttr& overlay);
/**
Creates a new @c wxTextAttr which is a merge of @a base and @a overlay.
Properties defined in @a overlay take precedence over those in @a base.
Properties undefined/invalid in both are undefined in the result.
*/
static wxTextAttr Merge(const wxTextAttr& base,
const wxTextAttr& overlay);
/**
Partial equality test. If @a weakTest is @true, attributes of this object do not
have to be present if those attributes of @a attr are present. If @a weakTest is
@false, the function will fail if an attribute is present in @a attr but not
in this object.
*/
bool EqPartial(const wxTextAttr& attr, bool weakTest = true) const;
/**
@name GetXXX functions
*/
//@{
/**
Returns the alignment flags.
See ::wxTextAttrAlignment for a list of available styles.
*/
wxTextAttrAlignment GetAlignment() const;
/**
Returns the background colour.
*/
const wxColour& GetBackgroundColour() const;
/**
Returns a string containing the name of the font associated with the bullet symbol.
Only valid for attributes with wxTEXT_ATTR_BULLET_SYMBOL.
*/
const wxString& GetBulletFont() const;
/**
Returns the standard bullet name, applicable if the bullet style is
wxTEXT_ATTR_BULLET_STYLE_STANDARD.
Currently the following standard bullet names are supported:
- @c standard/circle
- @c standard/square
- @c standard/diamond
- @c standard/triangle
@note
For wxRichTextCtrl users only: if you wish your rich text controls to support
further bullet graphics, you can derive a class from wxRichTextRenderer or
wxRichTextStdRenderer, override @c DrawStandardBullet and @c EnumerateStandardBulletNames,
and set an instance of the class using wxRichTextBuffer::SetRenderer.
*/
const wxString& GetBulletName() const;
/**
Returns the bullet number.
*/
int GetBulletNumber() const;
/**
Returns the bullet style.
See ::wxTextAttrBulletStyle for a list of available styles.
*/
int GetBulletStyle() const;
/**
Returns the bullet text, which could be a symbol, or (for example) cached
outline text.
*/
const wxString& GetBulletText() const;
/**
Returns the name of the character style.
*/
const wxString& GetCharacterStyleName() const;
/**
Returns flags indicating which attributes are applicable.
See SetFlags() for a list of available flags.
*/
long GetFlags() const;
/**
Creates and returns a font specified by the font attributes in the wxTextAttr
object. Note that wxTextAttr does not store a wxFont object, so this is only
a temporary font.
For greater efficiency, access the font attributes directly.
*/
wxFont GetFont() const;
/**
Gets the font attributes from the given font, using only the attributes
specified by @a flags.
*/
bool GetFontAttributes(const wxFont& font,
int flags = wxTEXT_ATTR_FONT);
/**
Returns the font encoding.
*/
wxFontEncoding GetFontEncoding() const;
/**
Returns the font face name.
*/
const wxString& GetFontFaceName() const;
/**
Returns the font family.
*/
wxFontFamily GetFontFamily() const;
/**
Returns the font size in points.
*/
int GetFontSize() const;
/**
Returns the font style.
*/
wxFontStyle GetFontStyle() const;
/**
Returns @true if the font is underlined.
*/
bool GetFontUnderlined() const;
/**
Returns the font weight.
*/
wxFontWeight GetFontWeight() const;
/**
Returns the left indent in tenths of a millimetre.
*/
long GetLeftIndent() const;
/**
Returns the left sub-indent in tenths of a millimetre.
*/
long GetLeftSubIndent() const;
/**
Returns the line spacing value, one of ::wxTextAttrLineSpacing values.
*/
int GetLineSpacing() const;
/**
Returns the name of the list style.
*/
const wxString& GetListStyleName() const;
/**
Returns the outline level.
*/
int GetOutlineLevel() const;
/**
Returns the space in tenths of a millimeter after the paragraph.
*/
int GetParagraphSpacingAfter() const;
/**
Returns the space in tenths of a millimeter before the paragraph.
*/
int GetParagraphSpacingBefore() const;
/**
Returns the name of the paragraph style.
*/
const wxString& GetParagraphStyleName() const;
/**
Returns the right indent in tenths of a millimeter.
*/
long GetRightIndent() const;
/**
Returns an array of tab stops, each expressed in tenths of a millimeter.
Each stop is measured from the left margin and therefore each value must
be larger than the last.
*/
const wxArrayInt& GetTabs() const;
/**
Returns the text foreground colour.
*/
const wxColour& GetTextColour() const;
/**
Returns the text effect bits of interest.
See SetFlags() for further information.
*/
int GetTextEffectFlags() const;
/**
Returns the text effects, a bit list of styles.
See SetTextEffects() for details.
*/
int GetTextEffects() const;
/**
Returns the URL for the content.
Content with @a wxTEXT_ATTR_URL style causes wxRichTextCtrl to show a
hand cursor over it, and wxRichTextCtrl generates a wxTextUrlEvent
when the content is clicked.
*/
const wxString& GetURL() const;
//@}
/**
@name HasXXX and IsXXX functions
*/
//@{
/**
Returns @true if the attribute object specifies alignment.
*/
bool HasAlignment() const;
/**
Returns @true if the attribute object specifies a background colour.
*/
bool HasBackgroundColour() const;
/**
Returns @true if the attribute object specifies a standard bullet name.
*/
bool HasBulletName() const;
/**
Returns @true if the attribute object specifies a bullet number.
*/
bool HasBulletNumber() const;
/**
Returns @true if the attribute object specifies a bullet style.
*/
bool HasBulletStyle() const;
/**
Returns @true if the attribute object specifies bullet text (usually
specifying a symbol).
*/
bool HasBulletText() const;
/**
Returns @true if the attribute object specifies a character style name.
*/
bool HasCharacterStyleName() const;
/**
Returns @true if the @a flag is present in the attribute object's flag
bitlist.
*/
bool HasFlag(long flag) const;
/**
Returns @true if the attribute object specifies any font attributes.
*/
bool HasFont() const;
/**
Returns @true if the attribute object specifies an encoding.
*/
bool HasFontEncoding() const;
/**
Returns @true if the attribute object specifies a font face name.
*/
bool HasFontFaceName() const;
/**
Returns @true if the attribute object specifies a font family.
*/
bool HasFontFamily() const;
/**
Returns @true if the attribute object specifies italic style.
*/
bool HasFontItalic() const;
/**
Returns @true if the attribute object specifies a font point or pixel size.
*/
bool HasFontSize() const;
/**
Returns @true if the attribute object specifies a font point size.
*/
bool HasFontPointSize() const;
/**
Returns @true if the attribute object specifies a font pixel size.
*/
bool HasFontPixelSize() const;
/**
Returns @true if the attribute object specifies either underlining or no
underlining.
*/
bool HasFontUnderlined() const;
/**
Returns @true if the attribute object specifies font weight (bold, light or
normal).
*/
bool HasFontWeight() const;
/**
Returns @true if the attribute object specifies a left indent.
*/
bool HasLeftIndent() const;
/**
Returns @true if the attribute object specifies line spacing.
*/
bool HasLineSpacing() const;
/**
Returns @true if the attribute object specifies a list style name.
*/
bool HasListStyleName() const;
/**
Returns @true if the attribute object specifies an outline level.
*/
bool HasOutlineLevel() const;
/**
Returns @true if the attribute object specifies a page break before this
paragraph.
*/
bool HasPageBreak() const;
/**
Returns @true if the attribute object specifies spacing after a paragraph.
*/
bool HasParagraphSpacingAfter() const;
/**
Returns @true if the attribute object specifies spacing before a paragraph.
*/
bool HasParagraphSpacingBefore() const;
/**
Returns @true if the attribute object specifies a paragraph style name.
*/
bool HasParagraphStyleName() const;
/**
Returns @true if the attribute object specifies a right indent.
*/
bool HasRightIndent() const;
/**
Returns @true if the attribute object specifies tab stops.
*/
bool HasTabs() const;
/**
Returns @true if the attribute object specifies a text foreground colour.
*/
bool HasTextColour() const;
/**
Returns @true if the attribute object specifies text effects.
*/
bool HasTextEffects() const;
/**
Returns @true if the attribute object specifies a URL.
*/
bool HasURL() const;
/**
Returns @true if the object represents a character style, that is,
the flags specify a font or a text background or foreground colour.
*/
bool IsCharacterStyle() const;
/**
Returns @false if we have any attributes set, @true otherwise.
*/
bool IsDefault() const;
/**
Returns @true if the object represents a paragraph style, that is,
the flags specify alignment, indentation, tabs, paragraph spacing, or
bullet style.
*/
bool IsParagraphStyle() const;
//@}
/**
@name SetXXX functions
*/
//@{
/**
Sets the paragraph alignment. See ::wxTextAttrAlignment enumeration values.
Of these, wxTEXT_ALIGNMENT_JUSTIFIED is unimplemented.
In future justification may be supported when printing or previewing, only.
*/
void SetAlignment(wxTextAttrAlignment alignment);
/**
Sets the background colour.
*/
void SetBackgroundColour(const wxColour& colBack);
/**
Sets the name of the font associated with the bullet symbol.
Only valid for attributes with wxTEXT_ATTR_BULLET_SYMBOL.
*/
void SetBulletFont(const wxString& font);
/**
Sets the standard bullet name, applicable if the bullet style is
wxTEXT_ATTR_BULLET_STYLE_STANDARD.
See GetBulletName() for a list of supported names, and how
to expand the range of supported types.
*/
void SetBulletName(const wxString& name);
/**
Sets the bullet number.
*/
void SetBulletNumber(int n);
/**
Sets the bullet style.
The ::wxTextAttrBulletStyle enumeration values are all supported,
except for wxTEXT_ATTR_BULLET_STYLE_BITMAP.
*/
void SetBulletStyle(int style);
/**
Sets the bullet text, which could be a symbol, or (for example) cached
outline text.
*/
void SetBulletText(const wxString& text);
/**
Sets the character style name.
*/
void SetCharacterStyleName(const wxString& name);
/**
Sets the flags determining which styles are being specified.
The ::wxTextAttrFlags values can be passed in a bitlist.
*/
void SetFlags(long flags);
/**
Sets the attributes for the given font.
Note that wxTextAttr does not store an actual wxFont object.
*/
void SetFont(const wxFont& font, int flags = wxTEXT_ATTR_FONT & ~wxTEXT_ATTR_FONT_PIXEL_SIZE);
/**
Sets the font encoding.
*/
void SetFontEncoding(wxFontEncoding encoding);
/**
Sets the font face name.
*/
void SetFontFaceName(const wxString& faceName);
/**
Sets the font family.
*/
void SetFontFamily(wxFontFamily family);
/**
Sets the font size in points.
*/
void SetFontSize(int pointSize);
/**
Sets the font size in points.
*/
void SetFontPointSize(int pointSize);
/**
Sets the font size in pixels.
*/
void SetFontPixelSize(int pixelSize);
/**
Sets the font style (normal, italic or slanted).
*/
void SetFontStyle(wxFontStyle fontStyle);
/**
Sets the font underlining.
*/
void SetFontUnderlined(bool underlined);
/**
Sets the font weight.
*/
void SetFontWeight(wxFontWeight fontWeight);
/**
Sets the left indent and left subindent in tenths of a millimetre.
The sub-indent is an offset from the left of the paragraph, and is used for all
but the first line in a paragraph.
A positive value will cause the first line to appear to the left
of the subsequent lines, and a negative value will cause the first line to be
indented relative to the subsequent lines.
wxRichTextBuffer uses indentation to render a bulleted item.
The left indent is the distance between the margin and the bullet.
The content of the paragraph, including the first line, starts
at leftMargin + leftSubIndent.
So the distance between the left edge of the bullet and the
left of the actual paragraph is leftSubIndent.
*/
void SetLeftIndent(int indent, int subIndent = 0);
/**
Sets the line spacing. @a spacing is a multiple, where 10 means single-spacing,
15 means 1.5 spacing, and 20 means double spacing.
The ::wxTextAttrLineSpacing values are defined for convenience.
*/
void SetLineSpacing(int spacing);
/**
Sets the list style name.
*/
void SetListStyleName(const wxString& name);
/**
Specifies the outline level. Zero represents normal text.
At present, the outline level is not used, but may be used in future for
determining list levels and for applications that need to store document
structure information.
*/
void SetOutlineLevel(int level);
/**
Specifies a page break before this paragraph.
*/
void SetPageBreak(bool pageBreak = true);
/**
Sets the spacing after a paragraph, in tenths of a millimetre.
*/
void SetParagraphSpacingAfter(int spacing);
/**
Sets the spacing before a paragraph, in tenths of a millimetre.
*/
void SetParagraphSpacingBefore(int spacing);
/**
Sets the name of the paragraph style.
*/
void SetParagraphStyleName(const wxString& name);
/**
Sets the right indent in tenths of a millimetre.
*/
void SetRightIndent(int indent);
/**
Sets the tab stops, expressed in tenths of a millimetre.
Each stop is measured from the left margin and therefore each value must be
larger than the last.
*/
void SetTabs(const wxArrayInt& tabs);
/**
Sets the text foreground colour.
*/
void SetTextColour(const wxColour& colText);
/**
Sets the text effect bits of interest.
You should also pass wxTEXT_ATTR_EFFECTS to SetFlags().
See SetFlags() for further information.
*/
void SetTextEffectFlags(int flags);
/**
Sets the text effects, a bit list of styles.
The ::wxTextAttrEffects enumeration values can be used.
Of these, only wxTEXT_ATTR_EFFECT_CAPITALS, wxTEXT_ATTR_EFFECT_STRIKETHROUGH,
wxTEXT_ATTR_EFFECT_SUPERSCRIPT and wxTEXT_ATTR_EFFECT_SUBSCRIPT are implemented.
wxTEXT_ATTR_EFFECT_CAPITALS capitalises text when displayed (leaving the case
of the actual buffer text unchanged), and wxTEXT_ATTR_EFFECT_STRIKETHROUGH draws
a line through text.
To set effects, you should also pass wxTEXT_ATTR_EFFECTS to SetFlags(), and call
SetTextEffectFlags() with the styles (taken from the above set) that you
are interested in setting.
*/
void SetTextEffects(int effects);
/**
Sets the URL for the content. Sets the wxTEXT_ATTR_URL style; content with this
style causes wxRichTextCtrl to show a hand cursor over it, and wxRichTextCtrl
generates a wxTextUrlEvent when the content is clicked.
*/
void SetURL(const wxString& url);
//@}
/**
Assignment from a wxTextAttr object.
*/
void operator=(const wxTextAttr& attr);
};
/**
@class wxTextCtrl
A text control allows text to be displayed and edited.
It may be single line or multi-line. Notice that a lot of methods of the
text controls are found in the base wxTextEntry class which is a common
base class for wxTextCtrl and other controls using a single line text entry
field (e.g. wxComboBox).
@beginStyleTable
@style{wxTE_PROCESS_ENTER}
The control will generate the event @c wxEVT_COMMAND_TEXT_ENTER
(otherwise pressing Enter key is either processed internally by the
control or used for navigation between dialog controls).
@style{wxTE_PROCESS_TAB}
The control will receive @c wxEVT_CHAR events for TAB pressed -
normally, TAB is used for passing to the next control in a dialog
instead. For the control created with this style, you can still use
Ctrl-Enter to pass to the next control from the keyboard.
@style{wxTE_MULTILINE}
The text control allows multiple lines. If this style is not
specified, line break characters should not be used in the controls
value.
@style{wxTE_PASSWORD}
The text will be echoed as asterisks.
@style{wxTE_READONLY}
The text will not be user-editable.
@style{wxTE_RICH}
Use rich text control under Win32, this allows to have more than
64KB of text in the control even under Win9x. This style is ignored
under other platforms.
@style{wxTE_RICH2}
Use rich text control version 2.0 or 3.0 under Win32, this style is
ignored under other platforms
@style{wxTE_AUTO_URL}
Highlight the URLs and generate the wxTextUrlEvents when mouse
events occur over them. This style is only supported for wxTE_RICH
Win32 and multi-line wxGTK2 text controls.
@style{wxTE_NOHIDESEL}
By default, the Windows text control doesn't show the selection
when it doesn't have focus - use this style to force it to always
show it. It doesn't do anything under other platforms.
@style{wxHSCROLL}
A horizontal scrollbar will be created and used, so that text won't
be wrapped. No effect under wxGTK1.
@style{wxTE_NO_VSCROLL}
For multiline controls only: vertical scrollbar will never be
created. This limits the amount of text which can be entered into
the control to what can be displayed in it under MSW but not under
GTK2. Currently not implemented for the other platforms.
@style{wxTE_LEFT}
The text in the control will be left-justified (default).
@style{wxTE_CENTRE}
The text in the control will be centered (currently wxMSW and
wxGTK2 only).
@style{wxTE_RIGHT}
The text in the control will be right-justified (currently wxMSW
and wxGTK2 only).
@style{wxTE_DONTWRAP}
Same as wxHSCROLL style: don't wrap at all, show horizontal
scrollbar instead.
@style{wxTE_CHARWRAP}
Wrap the lines too long to be shown entirely at any position
(wxUniv and wxGTK2 only).
@style{wxTE_WORDWRAP}
Wrap the lines too long to be shown entirely at word boundaries
(wxUniv and wxGTK2 only).
@style{wxTE_BESTWRAP}
Wrap the lines at word boundaries or at any other character if
there are words longer than the window width (this is the default).
@style{wxTE_CAPITALIZE}
On PocketPC and Smartphone, causes the first letter to be
capitalized.
@endStyleTable
Note that alignment styles (wxTE_LEFT, wxTE_CENTRE and wxTE_RIGHT) can be
changed dynamically after control creation on wxMSW and wxGTK. wxTE_READONLY,
wxTE_PASSWORD and wrapping styles can be dynamically changed under wxGTK but
not wxMSW. The other styles can be only set during control creation.
@section textctrl_text_format wxTextCtrl Text Format
The multiline text controls always store the text as a sequence of lines
separated by @c '\\n' characters, i.e. in the Unix text format even on
non-Unix platforms. This allows the user code to ignore the differences
between the platforms but at a price: the indices in the control such as
those returned by GetInsertionPoint() or GetSelection() can @b not be used
as indices into the string returned by GetValue() as they're going to be
slightly off for platforms using @c "\\r\\n" as separator (as Windows
does).
Instead, if you need to obtain a substring between the 2 indices obtained
from the control with the help of the functions mentioned above, you should
use GetRange(). And the indices themselves can only be passed to other
methods, for example SetInsertionPoint() or SetSelection().
To summarize: never use the indices returned by (multiline) wxTextCtrl as
indices into the string it contains, but only as arguments to be passed
back to the other wxTextCtrl methods. This problem doesn't arise for
single-line platforms however where the indices in the control do
correspond to the positions in the value string.
@section textctrl_styles wxTextCtrl Styles.
Multi-line text controls support styling, i.e. provide a possibility to set
colours and font for individual characters in it (note that under Windows
@c wxTE_RICH style is required for style support). To use the styles you
can either call SetDefaultStyle() before inserting the text or call
SetStyle() later to change the style of the text already in the control
(the first solution is much more efficient).
In either case, if the style doesn't specify some of the attributes (for
example you only want to set the text colour but without changing the font
nor the text background), the values of the default style will be used for
them. If there is no default style, the attributes of the text control
itself are used.
So the following code correctly describes what it does: the second call to
SetDefaultStyle() doesn't change the text foreground colour (which stays
red) while the last one doesn't change the background colour (which stays
grey):
@code
text->SetDefaultStyle(wxTextAttr(*wxRED));
text->AppendText("Red text\n");
text->SetDefaultStyle(wxTextAttr(wxNullColour, *wxLIGHT_GREY));
text->AppendText("Red on grey text\n");
text->SetDefaultStyle(wxTextAttr(*wxBLUE);
text->AppendText("Blue on grey text\n");
@endcode
@section textctrl_cpp_streams wxTextCtrl and C++ Streams
This class multiply-inherits from @c std::streambuf (except for some really
old compilers using non-standard iostream library), allowing code such as
the following:
@code
wxTextCtrl *control = new wxTextCtrl(...);
ostream stream(control)
stream << 123.456 << " some text\n";
stream.flush();
@endcode
Note that even if your compiler doesn't support this (the symbol
@c wxHAS_TEXT_WINDOW_STREAM has value of 0 then) you can still use
wxTextCtrl itself in a stream-like manner:
@code
wxTextCtrl *control = new wxTextCtrl(...);
*control << 123.456 << " some text\n";
@endcode
However the possibility to create an ostream associated with wxTextCtrl may
be useful if you need to redirect the output of a function taking an
ostream as parameter to a text control.
Another commonly requested need is to redirect @c std::cout to the text
control. This may be done in the following way:
@code
#include <iostream>
wxTextCtrl *control = new wxTextCtrl(...);
std::streambuf *sbOld = std::cout.rdbuf();
std::cout.rdbuf(control);
// use cout as usual, the output appears in the text control
...
std::cout.rdbuf(sbOld);
@endcode
But wxWidgets provides a convenient class to make it even simpler so
instead you may just do
@code
#include <iostream>
wxTextCtrl *control = new wxTextCtrl(...);
wxStreamToTextRedirector redirect(control);
// all output to cout goes into the text control until the exit from
// current scope
@endcode
See wxStreamToTextRedirector for more details.
@section textctrl_event_handling Event Handling.
The following commands are processed by default event handlers in
wxTextCtrl: @c wxID_CUT, @c wxID_COPY, @c wxID_PASTE, @c wxID_UNDO, @c
wxID_REDO. The associated UI update events are also processed
automatically, when the control has the focus.
@beginEventEmissionTable{wxCommandEvent}
@event{EVT_TEXT(id, func)}
Respond to a @c wxEVT_COMMAND_TEXT_UPDATED event, generated when the text
changes. Notice that this event will be sent when the text controls
contents changes -- whether this is due to user input or comes from the
program itself (for example, if wxTextCtrl::SetValue() is called); see
wxTextCtrl::ChangeValue() for a function which does not send this event.
This event is however not sent during the control creation.
@event{EVT_TEXT_ENTER(id, func)}
Respond to a @c wxEVT_COMMAND_TEXT_ENTER event, generated when enter is
pressed in a text control which must have wxTE_PROCESS_ENTER style for
this event to be generated.
@event{EVT_TEXT_URL(id, func)}
A mouse event occurred over an URL in the text control (wxMSW and
wxGTK2 only currently).
@event{EVT_TEXT_MAXLEN(id, func)}
This event is generated when the user tries to enter more text into the
control than the limit set by wxTextCtrl::SetMaxLength(), see its description.
@endEventTable
@library{wxcore}
@category{ctrl}
@appearance{textctrl}
@see wxTextCtrl::Create, wxValidator
*/
class wxTextCtrl : public wxControl,
public wxTextEntry
{
public:
/**
Default ctor.
*/
wxTextCtrl();
/**
Constructor, creating and showing a text control.
@param parent
Parent window. Should not be @NULL.
@param id
Control identifier. A value of -1 denotes a default value.
@param value
Default text value.
@param pos
Text control position.
@param size
Text control size.
@param style
Window style. See wxTextCtrl.
@param validator
Window validator.
@param name
Window name.
@remarks
The horizontal scrollbar (wxHSCROLL style flag) will only be
created for multi-line text controls. Without a horizontal
scrollbar, text lines that don't fit in the control's size will be
wrapped (but no newline character is inserted).
Single line controls don't have a horizontal scrollbar, the text is
automatically scrolled so that the insertion point is always visible.
@see Create(), wxValidator
*/
wxTextCtrl(wxWindow* parent, wxWindowID id,
const wxString& value = wxEmptyString,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = 0,
const wxValidator& validator = wxDefaultValidator,
const wxString& name = wxTextCtrlNameStr);
/**
Destructor, destroying the text control.
*/
virtual ~wxTextCtrl();
/**
Creates the text control for two-step construction.
This method should be called if the default constructor was used for
the control creation. Its parameters have the same meaning as for the
non-default constructor.
*/
bool Create(wxWindow* parent, wxWindowID id,
const wxString& value = wxEmptyString,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize, long style = 0,
const wxValidator& validator = wxDefaultValidator,
const wxString& name = wxTextCtrlNameStr);
/**
Copies the selected text to the clipboard and removes the selection.
*/
virtual void Cut();
/**
Resets the internal modified flag as if the current changes had been
saved.
*/
virtual void DiscardEdits();
/**
This function inserts into the control the character which would have
been inserted if the given key event had occurred in the text control.
The @a event object should be the same as the one passed to @c EVT_KEY_DOWN
handler previously by wxWidgets. Please note that this function doesn't
currently work correctly for all keys under any platform but MSW.
@return
@true if the event resulted in a change to the control, @false otherwise.
*/
virtual bool EmulateKeyPress(const wxKeyEvent& event);
/**
Returns the style currently used for the new text.
@see SetDefaultStyle()
*/
virtual const wxTextAttr& GetDefaultStyle() const;
/**
Gets the length of the specified line, not including any trailing
newline character(s).
@param lineNo
Line number (starting from zero).
@return
The length of the line, or -1 if @a lineNo was invalid.
*/
virtual int GetLineLength(long lineNo) const;
/**
Returns the contents of a given line in the text control, not including
any trailing newline character(s).
@param lineNo
The line number, starting from zero.
@return
The contents of the line.
*/
virtual wxString GetLineText(long lineNo) const;
/**
Returns the number of lines in the text control buffer.
The returned number is the number of logical lines, i.e. just the count
of the number of newline characters in the control + 1, for wxGTK and
wxOSX/Cocoa ports while it is the number of physical lines, i.e. the
count of lines actually shown in the control, in wxMSW and wxOSX/Carbon.
Because of this discrepancy, it is not recommended to use this function.
@remarks
Note that even empty text controls have one line (where the
insertion point is), so GetNumberOfLines() never returns 0.
*/
virtual int GetNumberOfLines() const;
/**
Returns the style at this position in the text control.
Not all platforms support this function.
@return
@true on success, @false if an error occurred (this may also mean
that the styles are not supported under this platform).
@see SetStyle(), wxTextAttr
*/
virtual bool GetStyle(long position, wxTextAttr& style);
//@{
/**
This function finds the character at the specified position expressed
in pixels.
The two overloads of this method allow to find either the position of
the character, as an index into the text control contents, or its row
and column.
If the return code is not @c wxTE_HT_UNKNOWN the row and column of the
character closest to this position are returned, otherwise the output
parameters are not modified.
Please note that this function is currently only implemented in wxUniv,
wxMSW and wxGTK2 ports and always returns @c wxTE_HT_UNKNOWN in the
other ports.
@beginWxPerlOnly
In wxPerl this function takes only the @a pt argument and
returns a 3-element list (result, col, row).
@endWxPerlOnly
@param pt
The position of the point to check, in window device coordinates.
@param col
Receives the column of the character at the given position. May be
@NULL.
@param row
Receives the row of the character at the given position. May be
@NULL.
@param pos
Receives the position of the character at the given position. May
be @NULL.
@see PositionToXY(), XYToPosition()
*/
wxTextCtrlHitTestResult HitTest(const wxPoint& pt, long *pos) const;
wxTextCtrlHitTestResult HitTest(const wxPoint& pt,
wxTextCoord *col,
wxTextCoord *row) const;
//@}
/**
Returns @true if the text has been modified by user.
Note that calling SetValue() doesn't make the control modified.
@see MarkDirty()
*/
virtual bool IsModified() const;
/**
Returns @true if this is a multi line edit control and @false otherwise.
@see IsSingleLine()
*/
bool IsMultiLine() const;
/**
Returns @true if this is a single line edit control and @false otherwise.
@see IsSingleLine(), IsMultiLine()
*/
bool IsSingleLine() const;
/**
Loads and displays the named file, if it exists.
@param filename
The filename of the file to load.
@param fileType
The type of file to load. This is currently ignored in wxTextCtrl.
@return
@true if successful, @false otherwise.
*/
bool LoadFile(const wxString& filename,
int fileType = wxTEXT_TYPE_ANY);
/**
Mark text as modified (dirty).
@see IsModified()
*/
virtual void MarkDirty();
/**
This event handler function implements default drag and drop behaviour,
which is to load the first dropped file into the control.
@param event
The drop files event.
@remarks This is not implemented on non-Windows platforms.
@see wxDropFilesEvent
*/
void OnDropFiles(wxDropFilesEvent& event);
/**
Converts given position to a zero-based column, line number pair.
@param pos
Position.
@param x
Receives zero based column number.
@param y
Receives zero based line number.
@return
@true on success, @false on failure (most likely due to a too large
position parameter).
@beginWxPerlOnly
In wxPerl this function takes only the @a pos argument and
returns a 2-element list (x, y).
@endWxPerlOnly
@see XYToPosition()
*/
virtual bool PositionToXY(long pos, long* x, long* y) const;
/**
Converts given text position to client coordinates in pixels.
This function allows to find where is the character at the given
position displayed in the text control.
@onlyfor{wxmsw,wxgtk}. Additionally, wxGTK only implements this method
for multiline controls and ::wxDefaultPosition is always returned for
the single line ones.
@param pos
Text position in 0 to GetLastPosition() range (inclusive).
@return
On success returns a wxPoint which contains client coordinates for
the given position in pixels, otherwise returns ::wxDefaultPosition.
@since 2.9.3
@see XYToPosition(), PositionToXY()
*/
wxPoint PositionToCoords(long pos) const;
/**
Saves the contents of the control in a text file.
@param filename
The name of the file in which to save the text.
@param fileType
The type of file to save. This is currently ignored in wxTextCtrl.
@return
@true if the operation was successful, @false otherwise.
*/
bool SaveFile(const wxString& filename = wxEmptyString,
int fileType = wxTEXT_TYPE_ANY);
/**
Changes the default style to use for the new text which is going to be
added to the control using WriteText() or AppendText().
If either of the font, foreground, or background colour is not set in
@a style, the values of the previous default style are used for them.
If the previous default style didn't set them neither, the global font
or colours of the text control itself are used as fall back.
However if the @a style parameter is the default wxTextAttr, then the default
style is just reset (instead of being combined with the new style which
wouldn't change it at all).
@param style
The style for the new text.
@return
@true on success, @false if an error occurred (this may also mean
that the styles are not supported under this platform).
@see GetDefaultStyle()
*/
virtual bool SetDefaultStyle(const wxTextAttr& style);
/**
Marks the control as being modified by the user or not.
@see MarkDirty(), DiscardEdits()
*/
void SetModified(bool modified);
/**
Changes the style of the given range.
If any attribute within @a style is not set, the corresponding
attribute from GetDefaultStyle() is used.
@param start
The start of the range to change.
@param end
The end of the range to change.
@param style
The new style for the range.
@return
@true on success, @false if an error occurred (this may also mean
that the styles are not supported under this platform).
@see GetStyle(), wxTextAttr
*/
virtual bool SetStyle(long start, long end, const wxTextAttr& style);
/**
Makes the line containing the given position visible.
@param pos
The position that should be visible.
*/
virtual void ShowPosition(long pos);
/**
Converts the given zero based column and line number to a position.
@param x
The column number.
@param y
The line number.
@return
The position value, or -1 if x or y was invalid.
*/
virtual long XYToPosition(long x, long y) const;
//@{
/**
Operator definitions for appending to a text control.
These operators can be used as with the standard C++ streams, for
example:
@code
wxTextCtrl *wnd = new wxTextCtrl(my_frame);
(*wnd) << "Welcome to text control number " << 1 << ".\n";
@endcode
*/
wxTextCtrl& operator<<(const wxString& s);
wxTextCtrl& operator<<(int i);
wxTextCtrl& operator<<(long i);
wxTextCtrl& operator<<(float f);
wxTextCtrl& operator<<(double d);
wxTextCtrl& operator<<(char c);
wxTextCtrl& operator<<(wchar_t c);
//@}
};
/**
@class wxStreamToTextRedirector
This class can be used to (temporarily) redirect all output sent to a C++
ostream object to a wxTextCtrl instead.
@note
Some compilers and/or build configurations don't support multiply
inheriting wxTextCtrl from @c std::streambuf in which case this class is
not compiled in.
You also must have @c wxUSE_STD_IOSTREAM option on (i.e. set to 1) in your
@c setup.h to be able to use it. Under Unix, specify @c --enable-std_iostreams
switch when running configure for this.
Example of usage:
@code
using namespace std;
wxTextCtrl* text = new wxTextCtrl(...);
{
wxStreamToTextRedirector redirect(text);
// this goes to the text control
cout << "Hello, text!" << endl;
}
// this goes somewhere else, presumably to stdout
cout << "Hello, console!" << endl;
@endcode
@library{wxcore}
@category{logging}
@see wxTextCtrl
*/
class wxStreamToTextRedirector
{
public:
/**
The constructor starts redirecting output sent to @a ostr or @a cout for
the default parameter value to the text control @a text.
@param text
The text control to append output too, must be non-@NULL
@param ostr
The C++ stream to redirect, cout is used if it is @NULL
*/
wxStreamToTextRedirector(wxTextCtrl *text, ostream* ostr);
/**
When a wxStreamToTextRedirector object is destroyed, the redirection is ended
and any output sent to the C++ ostream which had been specified at the time of
the object construction will go to its original destination.
*/
~wxStreamToTextRedirector();
};
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