GCText.cpp

/*
 *  Copyright (C) 2024  Thales Lima Oliveira <thales@ufu.br>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
#include "GCText.h"
#include <wx/dcscreen.h>
#include <wx/dcmemory.h>
#include <wx/dcgraph.h>
#include <wx/dcclient.h>
#include <wx/graphics.h>
 
GCText::GCText() {}
GCText::GCText(wxString text)
{
    SetText(text);
}
 
GCText::~GCText()
{
}
 
void GCText::Draw(wxPoint2DDouble position, wxGraphicsContext* gc, double angle, wxColour colour) const
{
    //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);
}
 
void GCText::Draw(wxPoint2DDouble position, double width, double height, wxDC& dc, double angle, wxColour colour) const
{
    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);
}
 
void GCText::SetText(wxString text)
{
    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);
    //}
}
 
void GCText::SetFont(wxFont font)
{
    m_font = font;
    m_customFont = true;
}
 
//wxSize GCText::CalculateTextExtend()
//{
//  // DC offscreen
//  wxBitmap bmp(1, 1);
//  wxMemoryDC mdc(bmp);
//
//  mdc.SetFont(m_font);
//
//  wxGCDC dc(mdc);
//  dc.SetFont(m_font);
//
//  wxCoord w, h;
//  dc.GetTextExtent(m_text, &w, &h);
//
//  wxArrayInt partial;
//  dc.GetPartialTextExtents(m_text, partial);
//
//  int leftOffset = 0;
//
//  if (!m_text.empty() && partial.size() >= 1)
//  {
//      wxCoord firstGlyphW, firstGlyphH;
//      dc.GetTextExtent(m_text.Mid(0, 1), &firstGlyphW, &firstGlyphH);
//
//      int advanceFirst = partial[0];
//
//      // se o glifo invade a esquerda → bearing negativo
//      leftOffset = firstGlyphW - advanceFirst;
//  }
//
//  return wxSize(w + leftOffset, h);
//}
 
 
GCText* GCText::GetCopy()
{
    GCText* copy = new GCText();
    *copy = *this;
 
    copy->SetText(copy->m_text);
    return copy;
}