GCText Class Reference

Class to draw text on Graphics Context using wxWidgets. More...

#include <GCText.h>

Public Member Functions
	GCText (wxString text)
virtual void	Draw (wxPoint2DDouble position, wxGraphicsContext *gc, double angle=0.0, wxColour colour= *wxBLACK) const
	Draw the text in wxGraphicsContext.
virtual void	Draw (wxPoint2DDouble position, double width, double height, wxDC &dc, double angle=0.0, wxColour colour= *wxBLACK) const
virtual GCText *	GetCopy ()
	Get a deep text copy.
virtual void	SetText (wxString text)
	Set correctly a new text string.
virtual wxString	GetText () const
virtual int	GetWidth () const
virtual int	GetHeight () const
virtual void	SetFontSize (int fontSize)
virtual int	GetFontSize ()
virtual void	SetFont (wxFont font)
virtual wxFont	GetFont ()

Protected Attributes
wxString	m_text = _("Text")
int	m_fontSize = 10
wxFont	m_font
bool	m_customFont = false
wxSize	m_size

Detailed Description

Class to draw text on Graphics Context using wxWidgets.

Author

Thales Lima Oliveira thale.nosp@m.s@uf.nosp@m.u.br

Date

16/05/2024

Definition at line 31 of file GCText.h.

Constructor & Destructor Documentation

GCText() [1/2]

GCText::GCText

(

)

Definition at line 25 of file GCText.cpp.

{}

GCText() [2/2]

GCText::GCText

(

wxString

text

)

Definition at line 26 of file GCText.cpp.

{
    SetText(text);
}

~GCText()

GCText::~GCText ( )

virtual

Definition at line 31 of file GCText.cpp.

{
}

Member Function Documentation

Draw() [1/2]

void GCText::Draw ( wxPoint2DDouble  position, double  width, double  height, wxDC &  dc, double  angle = 0.0, wxColour  colour = *wxBLACK  ) const

virtual

Definition at line 43 of file GCText.cpp.

{
    dc.SetFont(m_font);
    dc.SetPen(wxPen(colour));
    dc.SetTextForeground(colour);
 
    if(angle == 0.0) {
        dc.DrawText(m_text, position.m_x - width / 2.0, position.m_y - height / 2.0);
        return;
    }
 
    double rad = wxDegToRad(angle);
 
    double dx = -width / 2.0;
    double dy = -height / 2.0;
 
    double rx = dx * cos(rad) - dy * sin(rad);
    double ry = dx * sin(rad) + dy * cos(rad);
 
    double drawX = position.m_x + rx;
    double drawY = position.m_y + ry;
 
    dc.DrawRotatedText(m_text, drawX, drawY, -angle);
}

Draw() [2/2]

void GCText::Draw ( wxPoint2DDouble  position, wxGraphicsContext *  gc, double  angle = 0.0, wxColour  colour = *wxBLACK  ) const

virtual

Draw the text in wxGraphicsContext.

Parameters

position	Text position.
gc	Graphics Context.
angle	Text angle.
colour	Text colour.

Definition at line 35 of file GCText.cpp.

{
    //gc->SetFont(wxFont(m_fontSize, m_fontFamily, m_fontStyle, m_fontWeight), colour);
 
    gc->SetFont(m_font, colour);
    gc->DrawText(m_text, position.m_x, position.m_y, angle);
}

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GetCopy()

GCText * GCText::GetCopy ( )

virtual

Get a deep text copy.

Warning

The original object is not freed.

Returns

New text pointer.

Definition at line 161 of file GCText.cpp.

{
    GCText* copy = new GCText();
    *copy = *this;
 
    copy->SetText(copy->m_text);
    return copy;
}

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GetFont()

virtual wxFont GCText::GetFont ( )

inlinevirtual

Definition at line 70 of file GCText.h.

{ return m_font; }

GetFontSize()

virtual int GCText::GetFontSize ( )

inlinevirtual

Definition at line 65 of file GCText.h.

{ return m_fontSize; }

GetHeight()

virtual int GCText::GetHeight ( ) const

inlinevirtual

Definition at line 63 of file GCText.h.

{ return m_size.GetHeight(); }

GetText()

virtual wxString GCText::GetText ( ) const

inlinevirtual

Definition at line 61 of file GCText.h.

{ return m_text; }

GetWidth()

virtual int GCText::GetWidth ( ) const

inlinevirtual

Definition at line 62 of file GCText.h.

{ return m_size.GetWidth(); }

SetFont()

void GCText::SetFont ( wxFont  font )

virtual

Definition at line 121 of file GCText.cpp.

{
    m_font = font;
    m_customFont = true;
}

SetFontSize()

virtual void GCText::SetFontSize ( int  fontSize )

inlinevirtual

Definition at line 64 of file GCText.h.

{ m_fontSize = fontSize; }

SetText()

void GCText::SetText ( wxString  text )

virtual

Set correctly a new text string.

Parameters

text	New text string.

Definition at line 68 of file GCText.cpp.

{
    m_text = text;
    if (!m_customFont) {
        //m_font.SetFaceName(wxT("CMU Serif"));
        //m_font.SetPointSize(m_fontSize);
        m_font = wxFont(m_fontSize,
            wxFONTFAMILY_DEFAULT,
            wxFONTSTYLE_NORMAL,
            wxFONTWEIGHT_NORMAL,
            false,
            wxT("Arial"));
    }
 
    //wxFont font = wxFont(m_fontSize, m_fontFamily, m_fontStyle, m_fontWeight);
    //wxBitmap bmp(1, 1);
    //wxMemoryDC mdc(bmp);
    //
    //wxGraphicsContext* gc = wxGraphicsContext::Create(mdc);
    //
    //gc->SetFont(m_font, *wxBLACK);
    //
    //wxDouble w, h, descent, extLead;
    //gc->GetTextExtent(text, &w, &h, &descent, &extLead);
    //
    //delete gc;
    //
    //m_size =  wxSize((int)w, (int)h);
 
    wxScreenDC dc;
    dc.SetFont(m_font);
    m_size = dc.GetTextExtent(m_text);
 
    //m_size = CalculateTextExtend();
 
 
    //wxMemoryDC memDC;
    //
    //wxGraphicsContext* gc = wxGraphicsContext::Create(memDC);
    //if (gc) {
    //  gc->SetFont(m_font, *wxBLACK);
    //  double width, height, descent, externalLeading;
    //  gc->GetTextExtent(m_text, &width, &height, &descent, &externalLeading);
    //  m_size = wxSize(std::ceil(width + descent), std::ceil(height + externalLeading));
    //  delete gc;
    //}
    //else {
    //  memDC.SetFont(m_font);
    //  m_size = memDC.GetTextExtent(m_text);
    //}
}

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Member Data Documentation

m_customFont

bool GCText::m_customFont = false

protected

Definition at line 81 of file GCText.h.

m_font

wxFont GCText::m_font

protected

Definition at line 80 of file GCText.h.

m_fontSize

int GCText::m_fontSize = 10

protected

Definition at line 76 of file GCText.h.

m_size

wxSize GCText::m_size

protected

Definition at line 83 of file GCText.h.

m_text

wxString GCText::m_text = _("Text")

protected

Definition at line 75 of file GCText.h.

---

The documentation for this class was generated from the following files:

• Project/elements/GCText.h
• Project/elements/GCText.cpp