132 lines
4.7 KiB
C++
132 lines
4.7 KiB
C++
/*
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* This program source code file is part of KICAD, a free EDA CAD application.
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*
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* Copyright (C) 2016-2022 Kicad Developers, see change_log.txt for contributors.
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*
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* Base class for HiDPI aware wxGLCanvas implementations.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <gal/hidpi_gl_3D_canvas.h>
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const float HIDPI_GL_3D_CANVAS::m_delta_move_step_factor = 0.7f;
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HIDPI_GL_3D_CANVAS::HIDPI_GL_3D_CANVAS( const KIGFX::VC_SETTINGS& aVcSettings, CAMERA& aCamera,
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wxWindow* aParent, wxWindowID,
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const int* aAttribList, const wxPoint& aPos,
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const wxSize& aSize, long aStyle, const wxString& aName,
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const wxPalette& aPalette ) :
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HIDPI_GL_CANVAS( aVcSettings, aParent, wxID_ANY, aAttribList, aPos, aSize, aStyle, aName, aPalette ),
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m_mouse_is_moving( false ),
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m_mouse_was_moved( false ),
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m_camera_is_moving( false ),
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m_camera( aCamera )
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{
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}
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void HIDPI_GL_3D_CANVAS::OnMouseMoveCamera( wxMouseEvent& event )
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{
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if( m_camera_is_moving )
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return;
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const wxSize& nativeWinSize = GetNativePixelSize();
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const wxPoint& nativePosition = GetNativePosition( event.GetPosition() );
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m_camera.SetCurWindowSize( nativeWinSize );
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if( event.Dragging() )
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{
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if( event.LeftIsDown() ) // Drag
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m_camera.Drag( nativePosition );
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else if( event.MiddleIsDown() ) // Pan
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m_camera.Pan( nativePosition );
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m_mouse_is_moving = true;
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m_mouse_was_moved = true;
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}
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m_camera.SetCurMousePosition( nativePosition );
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}
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void HIDPI_GL_3D_CANVAS::OnMouseWheelCamera( wxMouseEvent& event, bool aPan )
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{
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bool mouseActivity = false;
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if( m_camera_is_moving )
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return;
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// Pick the modifier, if any. Shift beats control beats alt, we don't support more than one.
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int modifiers = event.ShiftDown() ? WXK_SHIFT
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: ( event.ControlDown() ? WXK_CONTROL
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: ( event.AltDown() ? WXK_ALT : 0 ) );
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float delta_move = m_delta_move_step_factor * m_camera.GetZoom();
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float horizontalSign = m_settings.m_scrollReversePanH ? -1 : 1;
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if( aPan )
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delta_move *= 0.01f * event.GetWheelRotation();
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else if( event.GetWheelRotation() < 0 )
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delta_move = -delta_move;
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// mousewheel_panning enabled:
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// wheel -> pan;
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// wheel + shift -> horizontal scrolling;
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// wheel + ctrl -> zooming;
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// mousewheel_panning disabled:
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// wheel + shift -> vertical scrolling;
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// wheel + ctrl -> horizontal scrolling;
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// wheel -> zooming.
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if( aPan && modifiers != m_settings.m_scrollModifierZoom )
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{
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if( event.GetWheelAxis() == wxMOUSE_WHEEL_HORIZONTAL
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|| modifiers == m_settings.m_scrollModifierPanH )
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m_camera.Pan( SFVEC3F( -delta_move, 0.0f, 0.0f ) );
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else
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m_camera.Pan( SFVEC3F( 0.0f, -delta_move, 0.0f ) );
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mouseActivity = true;
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}
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else if( modifiers == m_settings.m_scrollModifierPanV && !aPan )
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{
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m_camera.Pan( SFVEC3F( 0.0f, -delta_move, 0.0f ) );
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mouseActivity = true;
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}
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else if( modifiers == m_settings.m_scrollModifierPanH && !aPan )
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{
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m_camera.Pan( SFVEC3F( delta_move * horizontalSign, 0.0f, 0.0f ) );
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mouseActivity = true;
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}
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else
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{
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mouseActivity = m_camera.Zoom( event.GetWheelRotation() > 0 ? 1.1f : 1 / 1.1f );
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}
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// If it results on a camera movement
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if( mouseActivity )
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{
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m_mouse_is_moving = true;
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m_mouse_was_moved = true;
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}
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// Update the cursor current mouse position on the camera
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m_camera.SetCurMousePosition( GetNativePosition( event.GetPosition() ) );
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}
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