KiCad PCB EDA Suite
sch_draw_panel.cpp
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1 /*
2  * This program source code file is part of KiCad, a free EDA CAD application.
3  *
4  * Copyright (C) 2014-2019 CERN
5  * @author Maciej Suminski <maciej.suminski@cern.ch>
6  * Copyright (C) 2019 KiCad Developers, see AUTHORS.txt for contributors.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License
10  * as published by the Free Software Foundation; either version 2
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13  * This program is distributed in the hope that it will be useful,
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24  */
25 
26 
27 #include <sch_draw_panel.h>
28 
29 #include <wx/debug.h>
30 #include <wx/event.h>
31 #include <wx/gdicmn.h>
32 #include <wx/window.h>
33 #include <wx/windowid.h>
34 #include <memory>
35 #include <stdexcept>
36 
37 #include <confirm.h>
38 #include <eda_draw_frame.h>
39 #include <gal/definitions.h>
42 #include <math/vector2d.h>
43 #include <pgm_base.h>
45 #include <view/view.h>
46 #include <view/view_controls.h>
47 #include <view/wx_view_controls.h>
48 
49 #include <sch_base_frame.h>
50 #include <sch_painter.h>
51 
52 
53 SCH_DRAW_PANEL::SCH_DRAW_PANEL( wxWindow* aParentWindow, wxWindowID aWindowId,
54  const wxPoint& aPosition, const wxSize& aSize,
55  KIGFX::GAL_DISPLAY_OPTIONS& aOptions, GAL_TYPE aGalType )
56  : EDA_DRAW_PANEL_GAL( aParentWindow, aWindowId, aPosition, aSize, aOptions, aGalType )
57 {
58  m_currentCursor = wxCURSOR_ARROW;
59  m_view = new KIGFX::SCH_VIEW( true, dynamic_cast<SCH_BASE_FRAME*>( GetParentEDAFrame() ) );
60  m_view->SetGAL( m_gal );
61 
63 
64  m_painter.reset( new KIGFX::SCH_PAINTER( m_gal ) );
65 
66  COLOR_SETTINGS* cs = nullptr;
67 
68  if( auto frame = dynamic_cast<SCH_BASE_FRAME*>( GetParentEDAFrame() ) )
69  cs = frame->GetColorSettings();
70  else
71  cs = Pgm().GetSettingsManager().GetColorSettings();
72 
73  wxASSERT( cs );
74  m_painter->GetSettings()->LoadColors( cs );
75 
76  m_view->SetPainter( m_painter.get() );
77  m_view->SetScaleLimits( 1000.0, 0.0001 ); // This fixes the zoom in and zoom out limits
78  m_view->SetMirror( false, false );
79 
80  // Early initialization of the canvas background color,
81  // before any OnPaint event is fired for the canvas using a wrong bg color
82  auto settings = m_painter->GetSettings();
83  m_gal->SetClearColor( settings->GetBackgroundColor() );
84 
87 
89 
90  // View controls is the first in the event handler chain, so the Tool Framework operates
91  // on updated viewport data.
93 
94  m_viewControls->SetSnapping( true );
95 
96  SetEvtHandlerEnabled( true );
97  SetFocus();
98  Show( true );
99  Raise();
100  StartDrawing();
101 }
102 
103 
105 {
106 }
107 
108 
110 {
111  GetView()->Clear();
112  GetView()->DisplayComponent( const_cast<LIB_PART*>(aComponent) );
113 
114 }
115 
116 
118 {
119  GetView()->Clear();
120 
121  if( aScreen )
122  GetView()->DisplaySheet( const_cast<SCH_SCREEN*>( aScreen ) );
123 }
124 
125 
127 {
128  for( LAYER_NUM i = 0; (unsigned) i < sizeof( SCH_LAYER_ORDER ) / sizeof( LAYER_NUM ); ++i )
129  {
130  LAYER_NUM layer = SCH_LAYER_ORDER[i];
131  wxASSERT( layer < KIGFX::VIEW::VIEW_MAX_LAYERS );
132 
133  m_view->SetLayerOrder( layer, i );
134  }
135 }
136 
137 
139 {
140  bool rv = EDA_DRAW_PANEL_GAL::SwitchBackend( aGalType );
143 
144  Refresh();
145 
146  return rv;
147 }
148 
149 
151 {
152  // caching makes no sense for Cairo and other software renderers
154 
155  for( int i = 0; i < KIGFX::VIEW::VIEW_MAX_LAYERS; i++ )
156  m_view->SetLayerTarget( i, target );
157 
158  // Bitmaps are draw on a non cached GAL layer:
160 
161  // Some draw layers need specific settings
164 
167 
170 
171 // m_view->SetLayerTarget( LAYER_SELECTION_SHADOWS, KIGFX::TARGET_NONCACHED );
172 // m_view->SetLayerDisplayOnly( LAYER_SELECTION_SHADOWS ) ;
173 }
174 
175 
177 {
178  return static_cast<KIGFX::SCH_VIEW*>( m_view );
179 }
180 
181 
183 {
184  SCH_BASE_FRAME* frame = dynamic_cast<SCH_BASE_FRAME*>( GetParentEDAFrame() );
185 
186  try
187  {
188  // Check if the current rendering backend can be properly initialized
189  m_view->UpdateItems();
190  }
191  catch( const std::runtime_error& e )
192  {
193  // Fallback to software renderer
194  DisplayInfoMessage( frame, e.what() );
196 
197  if( frame )
198  frame->ActivateGalCanvas();
199  }
200 }
201 
202 
203 void SCH_DRAW_PANEL::onPaint( wxPaintEvent& aEvent )
204 {
205  // The first wxPaintEvent can be fired at startup before the GAL engine is fully initialized
206  // (depending on platforms). Do nothing in this case
207  if( !m_gal->IsInitialized() || !m_gal->IsVisible() )
208  return;
209 
210  EDA_DRAW_PANEL_GAL::onPaint( aEvent );
211 }
void DisplaySheet(const SCH_SCREEN *aScreen)
void SetScaleLimits(double aMaximum, double aMinimum)
Function SetScaleLimits() Sets minimum and maximum values for scale.
Definition: view.h:298
KIGFX::GAL * m_gal
Interface for drawing objects on a 2D-surface.
KIGFX::SCH_VIEW * GetView() const override
Function GetView() Returns a pointer to the VIEW instance used in the panel.
void SetClearColor(const COLOR4D &aColor)
KIWAY Kiway & Pgm(), KFCTL_STANDALONE
The global Program "get" accessor.
Definition: single_top.cpp:104
KIGFX::WX_VIEW_CONTROLS * m_viewControls
Control for VIEW (moving, zooming, etc.)
void DisplayComponent(LIB_PART *aPart)
Definition: sch_view.cpp:130
void SetLayerOrder(int aLayer, int aRenderingOrder)
Function SetLayerOrder() Sets rendering order of a particular layer.
Definition: view.cpp:664
GAL_TYPE m_backend
Currently used GAL.
This file is part of the common library.
void OnShow() override
to handle and draw images bitmaps
WX_VIEW_CONTROLS is a specific implementation of class VIEW_CONTROLS for wxWidgets library.
VIEW_CONTROLS class definition.
virtual bool SwitchBackend(GAL_TYPE aGalType)
Function SwitchBackend Switches method of rendering graphics.
virtual void SetSnapping(bool aEnabled)
Function SetSnapping() Enables/disables snapping cursor to grid.
void DisplaySheet(SCH_SHEET *aSheet)
Definition: sch_view.cpp:124
void UpdateAllLayersOrder()
Function UpdateLayerOrder() Does everything that is needed to apply the rendering order of layers.
Definition: view.cpp:927
void SetMirror(bool aMirrorX, bool aMirrorY)
Function SetMirror() Controls the mirroring of the VIEW.
Definition: view.cpp:565
WX_VIEW_CONTROLS class definition.
static constexpr int VIEW_MAX_LAYERS
maximum number of layers that may be shown
Definition: view.h:701
Auxiliary rendering target (noncached)
Definition: definitions.h:49
static const LAYER_NUM SCH_LAYER_ORDER[]
Definition: sch_view.h:44
void SetLayerTarget(int aLayer, RENDER_TARGET aTarget)
Function SetLayerTarget() Changes the rendering target for a particular layer.
Definition: view.h:434
virtual void onPaint(wxPaintEvent &WXUNUSED(aEvent))
void Clear()
Function Clear() Removes all items from the view.
Definition: view.cpp:1111
std::unique_ptr< KIGFX::PAINTER > m_painter
Contains information about how to draw items using GAL.
void SetLayerDisplayOnly(int aLayer, bool aDisplayOnly=true)
Definition: view.h:422
SCH_PAINTER Contains methods for drawing schematic-specific items.
Definition: sch_painter.h:128
virtual void onPaint(wxPaintEvent &WXUNUSED(aEvent)) override
Define a library symbol object.
Items that may change while the view stays the same (noncached)
Definition: definitions.h:50
virtual void SetFocus() override
void UpdateItems()
Function UpdateItems() Iterates through the list of items that asked for updating and updates them.
Definition: view.cpp:1421
void setDefaultLayerDeps()
Reassigns layer order to the initial settings.
virtual void ActivateGalCanvas()
Use to start up the GAL drawing canvas.
void StartDrawing()
Function StartDrawing() Begins drawing if it was stopped previously.
void SetWorldUnitLength(double aWorldUnitLength)
Set the unit length.
bool SwitchBackend(GAL_TYPE aGalType) override
Function SwitchBackend Switches method of rendering graphics.
virtual void Refresh(bool aEraseBackground=true, const wxRect *aRect=NULL) override
Update the board display after modifying it by a python script (note: it is automatically called by a...
SCH_DRAW_PANEL(wxWindow *aParentWindow, wxWindowID aWindowId, const wxPoint &aPosition, const wxSize &aSize, KIGFX::GAL_DISPLAY_OPTIONS &aOptions, GAL_TYPE aGalType=GAL_TYPE_OPENGL)
int LAYER_NUM
Type LAYER_NUM can be replaced with int and removed.
see class PGM_BASE
Board layer functions and definitions.
Main rendering target (cached)
Definition: definitions.h:48
constexpr double SCH_WORLD_UNIT(1e-7/0.0254)
KIGFX::VIEW * m_view
Stores view settings (scale, center, etc.) and items to be drawn.
EDA_DRAW_FRAME * GetParentEDAFrame() const
Function GetParentEDAFrame() Returns parent EDA_DRAW_FRAME, if available or NULL otherwise.
virtual bool IsVisible() const
Returns true if the GAL canvas is visible on the screen.
currently selected items overlay
void SetPainter(PAINTER *aPainter)
Function SetPainter() Sets the painter object used by the view for drawing VIEW_ITEMS.
Definition: view.h:189
Color settings are a bit different than most of the settings objects in that there can be more than o...
wxCursor m_currentCursor
Current mouse cursor shape id.
void SetGAL(GAL *aGal)
Function SetGAL() Assigns a rendering device for the VIEW.
Definition: view.cpp:519
void DisplayInfoMessage(wxWindow *aParent, const wxString &aMessage, const wxString &aExtraInfo)
Display an informational message box with aMessage.
Definition: confirm.cpp:267
A shim class between EDA_DRAW_FRAME and several derived classes: LIB_EDIT_FRAME, LIB_VIEW_FRAME,...
void DisplayComponent(const LIB_PART *aComponent)
void setDefaultLayerOrder()
virtual bool IsInitialized() const
Returns the initalization status for the canvas.