KiCad PCB EDA Suite
draw_panel_gal.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) 2013-2017 CERN
5  * Copyright (C) 2013-2017 KiCad Developers, see AUTHORS.txt for contributors.
6  * @author Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
7  * @author Maciej Suminski <maciej.suminski@cern.ch>
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * as published by the Free Software Foundation; either version 2
12  * of the License, or (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, you may find one here:
21  * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
22  * or you may search the http://www.gnu.org website for the version 2 license,
23  * or you may write to the Free Software Foundation, Inc.,
24  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
25  */
26 
27 #include <draw_frame.h>
28 #include <kiface_i.h>
29 #include <confirm.h>
30 
31 #include <class_draw_panel_gal.h>
32 #include <view/view.h>
33 #include <view/wx_view_controls.h>
34 #include <painter.h>
35 #include <base_screen.h>
37 #include <gal/opengl/opengl_gal.h>
38 #include <gal/cairo/cairo_gal.h>
39 
40 #include <tool/tool_dispatcher.h>
41 #include <tool/tool_manager.h>
42 
43 #ifdef __WXDEBUG__
44 #include <profile.h>
45 #endif /* PROFILE */
46 
47 
48 EDA_DRAW_PANEL_GAL::EDA_DRAW_PANEL_GAL( wxWindow* aParentWindow, wxWindowID aWindowId,
49  const wxPoint& aPosition, const wxSize& aSize,
50  KIGFX::GAL_DISPLAY_OPTIONS& aOptions, GAL_TYPE aGalType ) :
51  wxScrolledCanvas( aParentWindow, aWindowId, aPosition, aSize ),
52  m_options( aOptions )
53 {
54  m_parent = aParentWindow;
55  m_edaFrame = dynamic_cast<EDA_DRAW_FRAME*>( aParentWindow );
56  m_gal = NULL;
58  m_view = NULL;
59  m_painter = NULL;
60  m_eventDispatcher = NULL;
61  m_lostFocus = false;
62  m_stealsFocus = true;
63 
64 #ifdef __WXMAC__
65  m_defaultCursor = m_currentCursor = wxCURSOR_CROSS;
66 #else
67  m_defaultCursor = m_currentCursor = wxCURSOR_ARROW;
68 #endif
69 
70  SetLayoutDirection( wxLayout_LeftToRight );
71 
72  SwitchBackend( aGalType );
73  SetBackgroundStyle( wxBG_STYLE_CUSTOM );
74 
75 #ifdef __WXGTK3__
76  // Until we can handle the repaint events from scroll bar hide/show
77  // todo: Implement area mapping for re-painting scrollbars
78  ShowScrollbars( wxSHOW_SB_NEVER, wxSHOW_SB_NEVER );
79 #else
80  ShowScrollbars( wxSHOW_SB_ALWAYS, wxSHOW_SB_ALWAYS );
81 #endif
82  EnableScrolling( false, false ); // otherwise Zoom Auto disables GAL canvas
83 
84  Connect( wxEVT_SIZE, wxSizeEventHandler( EDA_DRAW_PANEL_GAL::onSize ), NULL, this );
85  Connect( wxEVT_ENTER_WINDOW, wxEventHandler( EDA_DRAW_PANEL_GAL::onEnter ), NULL, this );
86  Connect( wxEVT_KILL_FOCUS, wxFocusEventHandler( EDA_DRAW_PANEL_GAL::onLostFocus ), NULL, this );
87 
88  const wxEventType events[] =
89  {
90  // Binding both EVT_CHAR and EVT_CHAR_HOOK ensures that all key events,
91  // especially special key like arrow keys, are handled by the GAL event dispatcher,
92  // and not sent to GUI without filtering, because they have a default action (scroll)
93  // that must not be called.
94  wxEVT_LEFT_UP, wxEVT_LEFT_DOWN, wxEVT_LEFT_DCLICK,
95  wxEVT_RIGHT_UP, wxEVT_RIGHT_DOWN, wxEVT_RIGHT_DCLICK,
96  wxEVT_MIDDLE_UP, wxEVT_MIDDLE_DOWN, wxEVT_MIDDLE_DCLICK,
97  wxEVT_MOTION, wxEVT_MOUSEWHEEL, wxEVT_CHAR, wxEVT_CHAR_HOOK,
98 #if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
99  wxEVT_MAGNIFY,
100 #endif
102  };
103 
104  for( wxEventType eventType : events )
105  {
106  Connect( eventType, wxEventHandler( EDA_DRAW_PANEL_GAL::OnEvent ),
107  NULL, m_eventDispatcher );
108  }
109 
110  m_pendingRefresh = false;
111  m_drawing = false;
112  m_drawingEnabled = false;
113 
114  // Set up timer that prevents too frequent redraw commands
115  m_refreshTimer.SetOwner( this );
116  Connect( m_refreshTimer.GetId(), wxEVT_TIMER,
117  wxTimerEventHandler( EDA_DRAW_PANEL_GAL::onRefreshTimer ), NULL, this );
118 
119  // Set up timer to execute OnShow() method when the window appears on the screen
120  m_onShowTimer.SetOwner( this );
121  Connect( m_onShowTimer.GetId(), wxEVT_TIMER,
122  wxTimerEventHandler( EDA_DRAW_PANEL_GAL::onShowTimer ), NULL, this );
123  m_onShowTimer.Start( 10 );
124 }
125 
126 
128 {
129  StopDrawing();
130 
131  wxASSERT( !m_drawing );
132 
133  delete m_viewControls;
134  delete m_view;
135  delete m_gal;
136 }
137 
138 
140 {
141 // Windows has a strange manner on bringing up and activating windows
142 // containing a GAL canvas just after moving the mouse cursor into its area.
143 // Feel free to uncomment or extend the following #ifdef if you experience
144 // similar problems on your platform.
145 #ifdef __WINDOWS__
146  if( !GetParent()->IsDescendant( wxWindow::FindFocus() ) )
147  return;
148 #endif
149 
150  wxScrolledCanvas::SetFocus();
151  m_lostFocus = false;
152 }
153 
154 
155 void EDA_DRAW_PANEL_GAL::onPaint( wxPaintEvent& WXUNUSED( aEvent ) )
156 {
158 
159  // Update current zoom settings if the canvas is managed by a EDA frame
160  // (i.e. not by a preview panel in a dialog)
161  if( GetParentEDAFrame() && GetParentEDAFrame()->GetScreen() )
162  {
164 
165  VECTOR2D center = GetView()->GetCenter();
166  GetParentEDAFrame()->SetScrollCenterPosition( wxPoint( center.x, center.y ) );
167  }
168 
169  if( !m_gal->IsVisible() )
170  return;
171 
172  m_pendingRefresh = false;
173 
174  if( m_drawing )
175  return;
176 
177 #ifdef __WXDEBUG__
178  PROF_COUNTER totalRealTime;
179 #endif /* PROFILE */
180 
181  wxASSERT( m_painter );
182 
183  m_drawing = true;
184  KIGFX::RENDER_SETTINGS* settings = static_cast<KIGFX::RENDER_SETTINGS*>( m_painter->GetSettings() );
185 
186  try
187  {
188  m_view->UpdateItems();
189 
191 
192  m_gal->SetClearColor( settings->GetBackgroundColor() );
193  m_gal->SetGridColor( settings->GetGridColor() );
194  m_gal->SetCursorColor( settings->GetCursorColor() );
195 
196  // TODO: find why ClearScreen() must be called here in opengl mode
197  // and only if m_view->IsDirty() in Cairo mode to avoid distaly artifacts
198  // when moving the mouse cursor
199  if( m_backend == GAL_TYPE_OPENGL )
200  m_gal->ClearScreen();
201 
202  if( m_view->IsDirty() )
203  {
204  if( m_backend != GAL_TYPE_OPENGL && // Already called in opengl
206  m_gal->ClearScreen();
207 
208  m_view->ClearTargets();
209 
210  // Grid has to be redrawn only when the NONCACHED target is redrawn
212  m_gal->DrawGrid();
213 
214  m_view->Redraw();
215  }
216 
218  }
219  catch( std::runtime_error& err )
220  {
221  constexpr auto GAL_FALLBACK = GAL_TYPE_CAIRO;
222 
223  if( m_edaFrame )
224  {
225  bool use_gal = m_edaFrame->SwitchCanvas( GAL_FALLBACK );
226  m_edaFrame->UseGalCanvas( use_gal );
227  }
228  else
229  {
230  SwitchBackend( GAL_FALLBACK );
231  }
232 
234  _( "Could not use OpenGL, falling back to software rendering" ),
235  wxString( err.what() ) );
236  }
237 
238 #ifdef __WXDEBUG__
239  totalRealTime.Stop();
240  wxLogTrace( "GAL_PROFILE", "EDA_DRAW_PANEL_GAL::onPaint(): %.1f ms", totalRealTime.msecs() );
241 #endif /* PROFILE */
242 
243  m_lastRefresh = wxGetLocalTimeMillis();
244  m_drawing = false;
245 }
246 
247 
248 void EDA_DRAW_PANEL_GAL::onSize( wxSizeEvent& aEvent )
249 {
251  wxSize clientSize = GetClientSize();
252  m_gal->ResizeScreen( clientSize.x, clientSize.y );
253 
254  if( m_view )
255  {
258  }
259 }
260 
261 
262 void EDA_DRAW_PANEL_GAL::Refresh( bool aEraseBackground, const wxRect* aRect )
263 {
264  if( m_pendingRefresh )
265  return;
266 
267  m_pendingRefresh = true;
268 
269 #ifdef __WXMAC__
270  // Timers on OS X may have a high latency (seen up to 500ms and more) which
271  // makes repaints jerky. No negative impact seen without throttling, so just
272  // do an unconditional refresh for OS X.
273  ForceRefresh();
274 #else
275  wxLongLong t = wxGetLocalTimeMillis();
276  wxLongLong delta = t - m_lastRefresh;
277 
278  if( delta >= MinRefreshPeriod )
279  {
280  ForceRefresh();
281  }
282  else
283  {
284  // One shot timer
285  m_refreshTimer.Start( ( MinRefreshPeriod - delta ).ToLong(), true );
286  }
287 #endif
288 }
289 
290 
292 {
293  wxPaintEvent redrawEvent;
294  wxPostEvent( this, redrawEvent );
295 }
296 
297 
299 {
300  m_eventDispatcher = aEventDispatcher;
301  const wxEventType eventTypes[] = { wxEVT_TOOL };
302 
303  if( m_eventDispatcher )
304  {
305  for( wxEventType type : eventTypes )
306  {
307  m_parent->Connect( type, wxCommandEventHandler( TOOL_DISPATCHER::DispatchWxCommand ),
308  NULL, m_eventDispatcher );
309  }
310  }
311  else
312  {
313  for( wxEventType type : eventTypes )
314  {
315  // While loop is used to be sure that all event handlers are removed.
316  while( m_parent->Disconnect( type,
317  wxCommandEventHandler( TOOL_DISPATCHER::DispatchWxCommand ),
318  NULL, m_eventDispatcher ) );
319  }
320  }
321 }
322 
323 
325 {
326  // Start querying GAL if it is ready
327  m_refreshTimer.StartOnce( 100 );
328 }
329 
330 
332 {
333  m_drawingEnabled = false;
334  Disconnect( wxEVT_PAINT, wxPaintEventHandler( EDA_DRAW_PANEL_GAL::onPaint ), NULL, this );
335  m_pendingRefresh = false;
336  m_refreshTimer.Stop();
337 }
338 
339 
341 {
342  // Set display settings for high contrast mode
344 
345  SetTopLayer( aLayer );
346 
347  rSettings->ClearActiveLayers();
348  rSettings->SetActiveLayer( aLayer );
349 
351 }
352 
353 
355 {
357  m_view->SetTopLayer( aLayer );
359 }
360 
361 
363 {
365 }
366 
367 
369 {
370  // Do not do anything if the currently used GAL is correct
371  if( aGalType == m_backend && m_gal != NULL )
372  return true;
373 
374  bool result = true; // assume everything will be fine
375 
376  // Prevent refreshing canvas during backend switch
377  StopDrawing();
378 
379  KIGFX::GAL* new_gal = NULL;
380 
381  try
382  {
383  switch( aGalType )
384  {
385  case GAL_TYPE_OPENGL:
386  try
387  {
388  new_gal = new KIGFX::OPENGL_GAL( m_options, this, this, this );
389  break;
390  }
391  catch( std::runtime_error& err )
392  {
393  aGalType = GAL_TYPE_CAIRO;
395  _( "Could not use OpenGL, falling back to software rendering" ),
396  wxString( err.what() ) );
397  }
398 
399  new_gal = new KIGFX::CAIRO_GAL( m_options, this, this, this );
400  break;
401 
402  case GAL_TYPE_CAIRO:
403  new_gal = new KIGFX::CAIRO_GAL( m_options, this, this, this );
404  break;
405 
406  default:
407  wxASSERT( false );
408  // warn about unhandled GAL canvas type, but continue with the fallback option
409 
410  case GAL_TYPE_NONE:
411  // KIGFX::GAL is a stub - it actually does cannot display anything,
412  // but prevents code relying on GAL canvas existence from crashing
413  new_gal = new KIGFX::GAL( m_options );
414  break;
415  }
416  }
417  catch( std::runtime_error& err )
418  {
419  // Create a dummy GAL
420  new_gal = new KIGFX::GAL( m_options );
421  aGalType = GAL_TYPE_NONE;
422  DisplayError( m_parent, wxString( err.what() ) );
423  result = false;
424  }
425 
426  // trigger update of the gal options in case they differ
427  // from the defaults
429 
430  wxASSERT( new_gal );
431  delete m_gal;
432  m_gal = new_gal;
433 
434  wxSize size = GetClientSize();
435  m_gal->ResizeScreen( size.GetX(), size.GetY() );
436 
437  if( m_painter )
438  m_painter->SetGAL( m_gal );
439 
440  if( m_view )
441  {
442  m_view->SetGAL( m_gal );
443  // Note: OpenGL requires reverse draw order when draw priority is enabled
444  m_view->ReverseDrawOrder( aGalType == GAL_TYPE_OPENGL );
445  }
446 
447  m_backend = aGalType;
448 
449  return result;
450 }
451 
452 
453 void EDA_DRAW_PANEL_GAL::OnEvent( wxEvent& aEvent )
454 {
455  if( m_lostFocus && m_stealsFocus )
456  SetFocus();
457 
458  if( !m_eventDispatcher )
459  aEvent.Skip();
460  else
462 
463  Refresh();
464 }
465 
466 
467 void EDA_DRAW_PANEL_GAL::onEnter( wxEvent& aEvent )
468 {
469  // Getting focus is necessary in order to receive key events properly
470  if( m_stealsFocus )
471  SetFocus();
472 
473  aEvent.Skip();
474 }
475 
476 
477 void EDA_DRAW_PANEL_GAL::onLostFocus( wxFocusEvent& aEvent )
478 {
479  m_lostFocus = true;
480 
481  aEvent.Skip();
482 }
483 
484 
485 void EDA_DRAW_PANEL_GAL::onRefreshTimer( wxTimerEvent& aEvent )
486 {
487  if( !m_drawingEnabled )
488  {
489  if( m_gal && m_gal->IsInitialized() )
490  {
491  m_drawing = false;
492  m_pendingRefresh = true;
493  Connect( wxEVT_PAINT, wxPaintEventHandler( EDA_DRAW_PANEL_GAL::onPaint ), NULL, this );
494  m_drawingEnabled = true;
495  }
496  else
497  {
498  // Try again soon
499  m_refreshTimer.StartOnce( 100 );
500  return;
501  }
502  }
503 
504  wxPaintEvent redrawEvent;
505  wxPostEvent( this, redrawEvent );
506 }
507 
508 
509 void EDA_DRAW_PANEL_GAL::onShowTimer( wxTimerEvent& aEvent )
510 {
511  if( m_gal && m_gal->IsVisible() )
512  {
513  m_onShowTimer.Stop();
514  OnShow();
515  }
516 }
518 {
519  if ( aCursor > wxCURSOR_NONE && aCursor < wxCURSOR_MAX )
520  {
521  m_currentCursor = aCursor;
522  }
523  else
524  {
525  m_currentCursor = wxCURSOR_ARROW;
526  }
527 
528  SetCursor( (wxStockCursor) m_currentCursor );
529 }
530 
532 {
534 }
void Stop()
save the time when this function was called, and set the counter stane to stop
Definition: profile.h:82
bool m_pendingRefresh
Is there a redraw event requested?
wxTimer m_refreshTimer
Timer responsible for preventing too frequent refresh.
KIGFX::GAL * m_gal
Interface for drawing objects on a 2D-surface.
const VECTOR2D & GetCenter() const
Function GetCenter() Returns the center point of this VIEW (in world space coordinates) ...
Definition: view.h:339
void SetClearColor(const COLOR4D &aColor)
virtual void SetHighContrastLayer(int aLayer)
Function SetHighContrastLayer Takes care of display settings for the given layer to be displayed in h...
void ForceRefresh()
Function ForceRefresh() Forces a redraw.
virtual const COLOR4D & GetGridColor()=0
Function GetGridColor Returns current grid color settings.
KIGFX::WX_VIEW_CONTROLS * m_viewControls
Control for VIEW (moving, zooming, etc.)
void ReverseDrawOrder(bool aFlag)
Function ReverseDrawOrder() Only takes effect if UseDrawPriority is true.
Definition: view.h:686
GAL_TYPE m_backend
Currently used GAL.
virtual void SetTopLayer(int aLayer, bool aEnabled=true)
Function SetTopLayer() Sets given layer to be displayed on the top or sets back the default order of ...
Definition: view.cpp:858
Class RENDER_SETTINGS Contains all the knowledge about how graphical objects are drawn on any output ...
Definition: painter.h:56
static const wxEventType EVT_REFRESH_MOUSE
Event that forces mouse move event in the dispatcher (eg.
This file is part of the common library.
void OnEvent(wxEvent &aEvent)
Used to forward events to the canvas from popups, etc.
virtual const COLOR4D & GetCursorColor()=0
Function GetCursorColor Returns current cursor color settings.
virtual const COLOR4D & GetBackgroundColor()=0
Function GetBackgroundColor Returns current background color settings.
double GetLegacyZoom() const
Function GetLegacyZoom() Returns current view scale converted to zoom value used by the legacy canvas...
virtual bool SwitchBackend(GAL_TYPE aGalType)
Function SwitchBackend Switches method of rendering graphics.
EDA_DRAW_FRAME * GetParentEDAFrame() const
Function GetParentEDAFrame() Returns parent EDA_DRAW_FRAME, if available or NULL otherwise.
void SetScrollCenterPosition(const wxPoint &aPoint)
KIGFX::GAL_DISPLAY_OPTIONS & m_options
virtual void OnShow()
Function OnShow() Called when the window is shown for the first time.
Class OpenGL_GAL is the OpenGL implementation of the Graphics Abstraction Layer.
Definition: opengl_gal.h:65
void onLostFocus(wxFocusEvent &aEvent)
int m_currentCursor
Current mouse cursor shape id.
virtual bool IsVisible() const
Returns true if the GAL canvas is visible on the screen.
void UpdateAllLayersOrder()
Function UpdateLayerOrder() Does everything that is needed to apply the rendering order of layers...
Definition: view.cpp:925
KIGFX::VIEW * GetView() const
Function GetView() Returns a pointer to the VIEW instance used in the panel.
void onShowTimer(wxTimerEvent &aEvent)
The base class for create windows for drawing purpose.
Definition: draw_frame.h:78
bool IsDirty() const
Function IsDirty() Returns true if any of the VIEW layers needs to be refreshened.
Definition: view.h:568
virtual bool IsInitialized() const
Returns the initalization status for the canvas.
The class PROF_COUNTER is a small class to help profiling.
Definition: profile.h:45
int m_defaultCursor
The default mouse cursor shape id.
virtual void UseGalCanvas(bool aEnable)
Use to switch between standard and GAL-based canvas.
static const int delta[8][2]
Definition: solve.cpp:112
WX_VIEW_CONTROLS class definition.
double GetZoomLevelCoeff() const
Return the coefficient to convert internal display scale factor to zoom level.
Definition: draw_frame.h:461
void SetActiveLayer(int aLayerId, bool aEnabled=true)
Function SetActiveLayer Sets the specified layer as active - it means that it can be drawn in a speci...
Definition: painter.h:76
Auxiliary rendering target (noncached)
Definition: definitions.h:42
void onRefreshTimer(wxTimerEvent &aEvent)
void UpdateScrollbars()
Adjusts the scrollbars position to match the current viewport.
bool m_drawing
True if GAL is currently redrawing the view.
void SetGridColor(const COLOR4D &aGridColor)
Set the grid color.
wxWindow * m_parent
Pointer to the parent window.
virtual BASE_SCREEN * GetScreen() const
Return a pointer to a BASE_SCREEN or one of its derivatives.
Definition: draw_frame.h:394
virtual void onPaint(wxPaintEvent &WXUNUSED(aEvent))
void ClearActiveLayers()
Function ClearActiveLayers Clears the list of active layers.
Definition: painter.h:98
virtual void Redraw()
Function Redraw() Immediately redraws the whole view.
Definition: view.cpp:1143
void MarkTargetDirty(int aTarget)
Function MarkTargetDirty() Sets or clears target &#39;dirty&#39; flag.
Definition: view.h:596
static const int MinRefreshPeriod
60 FPS.
std::unique_ptr< KIGFX::PAINTER > m_painter
Contains information about how to draw items using GAL.
virtual void DispatchWxEvent(wxEvent &aEvent)
Function DispatchWxEvent() Processes wxEvents (mostly UI events), translates them to TOOL_EVENTs...
virtual void SetTopLayer(int aLayer)
Function SetTopLayer Moves the selected layer to the top, so it is displayed above all others...
bool IsTargetDirty(int aTarget) const
Function IsTargetDirty() Returns true if any of layers belonging to the target or the target itself s...
Definition: view.h:585
virtual void DrawCursor(const VECTOR2D &aCursorPosition)
Draw the cursor.
EDA_DRAW_PANEL_GAL(wxWindow *aParentWindow, wxWindowID aWindowId, const wxPoint &aPosition, const wxSize &aSize, KIGFX::GAL_DISPLAY_OPTIONS &aOptions, GAL_TYPE aGalType=GAL_TYPE_OPENGL)
bool m_lostFocus
Flag to indicate that focus should be regained on the next mouse event.
virtual void SetFocus() override
virtual bool SwitchCanvas(EDA_DRAW_PANEL_GAL::GAL_TYPE aCanvasType)
Changes the current rendering backend.
void UpdateItems()
Function UpdateItems() Iterates through the list of items that asked for updating and updates them...
Definition: view.cpp:1419
virtual bool SetZoom(double iu_per_du)
Function SetZoom adjusts the current zoom factor.
EDA_DRAW_FRAME * m_edaFrame
Parent EDA_DRAW_FRAME (if available)
PAINTER * GetPainter() const
Function GetPainter() Returns the painter object used by the view for drawing VIEW_ITEMS.
Definition: view.h:199
void SetCursorColor(const COLOR4D &aCursorColor)
Set the cursor color.
virtual void SetCurrentCursor(int aCursor)
Function SetCurrentCursor Set the current cursor shape for this panel.
string & err
Definition: json11.cpp:598
virtual void ResizeScreen(int aWidth, int aHeight)
Resizes the canvas.
void onSize(wxSizeEvent &aEvent)
void StartDrawing()
Function StartDrawing() Begins drawing if it was stopped previously.
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...
void ClearTopLayers()
Function ClearTopLayers() Removes all layers from the on-the-top set (they are no longer displayed ov...
Definition: view.cpp:910
Class TOOL_DISPATCHER.
virtual void DrawGrid()
>
virtual void ClearScreen()
Clear the screen.
TOOL_DISPATCHER * m_eventDispatcher
Processes and forwards events to tools.
double msecs() const
Definition: profile.h:124
virtual RENDER_SETTINGS * GetSettings()=0
Function GetSettings Returns pointer to current settings that are going to be used when drawing items...
wxTimer m_onShowTimer
Timer used to execute OnShow() when the window finally appears on the screen.
Main rendering target (cached)
Definition: definitions.h:41
KIGFX::VIEW * m_view
Stores view settings (scale, center, etc.) and items to be drawn.
virtual void DispatchWxCommand(wxCommandEvent &aEvent)
Function DispatchWxCommand() Processes wxCommands (mostly menu related events) and runs appropriate a...
void SetEventDispatcher(TOOL_DISPATCHER *aEventDispatcher)
Function SetEventDispatcher() Sets a dispatcher that processes events and forwards them to tools...
bool m_drawingEnabled
Flag that determines if VIEW may use GAL for redrawing the screen.
VECTOR2D GetCursorPosition(bool aSnappingEnabled) const override
Returns the current cursor position in world coordinates.
void ClearTargets()
Function ClearTargets() Clears targets that are marked as dirty.
Definition: view.cpp:1124
double GetZoomFactor() const
Get the zoom factor.
wxLongLong m_lastRefresh
Last timestamp when the panel was refreshed.
void onEnter(wxEvent &aEvent)
void UpdateAllLayersColor()
Function UpdateAllLayersColor() Applies the new coloring scheme to all layers.
Definition: view.cpp:796
bool m_stealsFocus
Flag to indicate whether the panel should take focus at certain times (when moused over...
BASE_SCREEN class implementation.
void SetGAL(GAL *aGal)
Function SetGAL() Assigns a rendering device for the VIEW.
Definition: view.cpp:518
void DisplayInfoMessage(wxWindow *aParent, const wxString &aMessage, const wxString &aExtraInfo)
Function DisplayInfoMessage displays an informational message box with aMessage.
Definition: confirm.cpp:277
void DisplayError(wxWindow *parent, const wxString &text, int displaytime)
Function DisplayError displays an error or warning message box with aMessage.
Definition: confirm.cpp:245
virtual void SetDefaultCursor()
void StopDrawing()
Function StopDrawing() Prevents the GAL canvas from further drawing till it is recreated or StartDraw...
Class GAL is the abstract interface for drawing on a 2D-surface.