kicad/common/widgets/wx_angle_text.cpp

97 lines
3.3 KiB
C++

/*
* This program source code file is part of KICAD, a free EDA CAD application.
*
* Copyright (C) 2020 Kicad Developers, see AUTHORS.txt for contributors.
*
* 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 (at your option) 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <wx/wx.h>
#include <widgets/wx_angle_text.h>
#include <eda_rect.h>
WX_ANGLE_TEXT::WX_ANGLE_TEXT( wxWindow* aParent, wxWindowID aId, const wxString& aLabel,
const wxPoint& aPos, double aAngle ) :
wxPanel( aParent, aId, aPos, wxDefaultSize ),
m_label( aLabel ),
m_angle( aAngle )
{
wxFont font = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT );
font.SetPointSize( font.GetPointSize() + 2 ); // rotated text looks visually smaller
SetFont( font );
// Measure the size of the text
wxClientDC dc( this );
dc.SetFont( font );
wxSize size = dc.GetTextExtent( m_label );
wxPoint pos = GetPosition();
EDA_RECT rect( wxPoint( 0, 0 ), size );
EDA_RECT bbox = rect.GetBoundingBoxRotated( rect.GetPosition(), m_angle );
pos.y += bbox.GetTop() + ( rect.GetBottom() - bbox.GetBottom() );
size.y = bbox.GetHeight();
size.x = bbox.GetWidth();
Move( pos );
SetSize( size );
Bind( wxEVT_ERASE_BACKGROUND, &WX_ANGLE_TEXT::OnEraseBackground, this );
Bind( wxEVT_PAINT, &WX_ANGLE_TEXT::OnPaint, this );
}
void WX_ANGLE_TEXT::OnEraseBackground( wxEraseEvent& WXUNUSED( aEvent ) )
{
// NOP so that we don't erase other labels which intersect
}
void WX_ANGLE_TEXT::OnPaint( wxPaintEvent& WXUNUSED( aEvent ) )
{
wxPaintDC dc( this );
dc.SetFont( GetFont() );
dc.SetTextForeground( wxSystemSettings::GetColour( wxSYS_COLOUR_WINDOWTEXT ) );
dc.SetTextBackground( wxTransparentColor );
wxSize size = dc.GetTextExtent( m_label );
EDA_RECT rect( wxPoint( 0, 0 ), size );
EDA_RECT bbox = rect.GetBoundingBoxRotated( rect.GetPosition(), m_angle );
wxPoint pos( 0, -bbox.GetTop() );
dc.DrawRotatedText( m_label, pos, m_angle / 10 );
}
EDA_RECT WX_ANGLE_TEXT::GetBoundingBox( wxWindow* aWindow, const wxString& aLabel, double aAngle )
{
// Create the font used for the text
wxFont font = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT );
font.SetPointSize( font.GetPointSize() + 2 ); // rotated text looks visually smaller
// Measure the size of the text
wxClientDC dc( aWindow );
dc.SetFont( font );
wxSize size = dc.GetTextExtent( aLabel );
EDA_RECT rect( wxPoint( 0, 0 ), size );
return rect.GetBoundingBoxRotated( rect.GetPosition(), aAngle );
}