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kicad/common/draw_panel.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2009 Jean-Pierre Charras, jean-pierre.charras@gipsa-lab.inpg.fr
* Copyright (C) 2007 Wayne Stambaugh <stambaughw@gmail.com>
* Copyright (C) 1992-2018 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
*/
/**
* @file draw_panel.cpp
*/
#include <fctsys.h>
#include <wx/timer.h>
#include <pgm_base.h>
#include <kiface_i.h>
#include <gr_basic.h>
#include <common.h>
#include <macros.h>
#include <id.h>
#include <class_drawpanel.h>
#include <class_draw_panel_gal.h>
#include <base_screen.h>
#include <draw_frame.h>
#include <view/view_controls.h>
#include <gal/gal_display_options.h>
#include <trace_helpers.h>
#include <kicad_device_context.h>
static const int CURSOR_SIZE = 12; ///< Cursor size in pixels
#define CLIP_BOX_PADDING 2
///@{
/// \ingroup config
#define ENBL_ZOOM_NO_CENTER_KEY wxT( "ZoomNoCenter" )
#define ENBL_MOUSEWHEEL_PAN_KEY wxT( "MousewheelPAN" )
#define ENBL_MIDDLE_BUTT_PAN_KEY wxT( "MiddleButtonPAN" )
#define MIDDLE_BUTT_PAN_LIMITED_KEY wxT( "MiddleBtnPANLimited" )
#define ENBL_AUTO_PAN_KEY wxT( "AutoPAN" )
///@}
// Definitions for enabling and disabling debugging features in drawpanel.cpp.
// Please don't forget to turn these off before making any commits to Launchpad.
#define DEBUG_SHOW_CLIP_RECT 0 // Set to 1 to draw clipping rectangle.
// Events used by EDA_DRAW_PANEL
BEGIN_EVENT_TABLE( EDA_DRAW_PANEL, wxScrolledWindow )
EVT_LEAVE_WINDOW( EDA_DRAW_PANEL::OnMouseLeaving )
EVT_ENTER_WINDOW( EDA_DRAW_PANEL::OnMouseEntering )
EVT_MOUSEWHEEL( EDA_DRAW_PANEL::OnMouseWheel )
#if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
EVT_MAGNIFY( EDA_DRAW_PANEL::OnMagnify )
#endif
EVT_MOUSE_EVENTS( EDA_DRAW_PANEL::OnMouseEvent )
EVT_CHAR( EDA_DRAW_PANEL::OnKeyEvent )
EVT_CHAR_HOOK( EDA_DRAW_PANEL::OnKeyEvent )
EVT_PAINT( EDA_DRAW_PANEL::OnPaint )
EVT_ERASE_BACKGROUND( EDA_DRAW_PANEL::OnEraseBackground )
EVT_SCROLLWIN( EDA_DRAW_PANEL::OnScroll )
EVT_ACTIVATE( EDA_DRAW_PANEL::OnActivate )
EVT_TIMER( ID_MOUSE_DOUBLECLICK, EDA_DRAW_PANEL::OnTimer )
EVT_MENU_RANGE( ID_PAN_UP, ID_PAN_RIGHT, EDA_DRAW_PANEL::OnPan )
END_EVENT_TABLE()
/***********************************************************************/
/* EDA_DRAW_PANEL base functions (EDA_DRAW_PANEL is the main panel)*/
/***********************************************************************/
#ifdef __WXMAC__
const int drawPanelStyle = wxBORDER | wxHSCROLL | wxVSCROLL | wxALWAYS_SHOW_SB;
#else
const int drawPanelStyle = wxBORDER | wxHSCROLL | wxVSCROLL;
#endif
EDA_DRAW_PANEL::EDA_DRAW_PANEL( EDA_DRAW_FRAME* parent, int id,
const wxPoint& pos, const wxSize& size ) :
wxScrolledWindow( parent, id, pos, size, drawPanelStyle )
{
wxASSERT( parent );
ShowScrollbars( wxSHOW_SB_ALWAYS, wxSHOW_SB_ALWAYS );
DisableKeyboardScrolling();
m_scrollIncrementX = std::min( size.x / 8, 10 );
m_scrollIncrementY = std::min( size.y / 8, 10 );
SetLayoutDirection( wxLayout_LeftToRight );
SetBackgroundColour( parent->GetDrawBgColor().ToColour() );
#if KICAD_USE_BUFFERED_DC || KICAD_USE_BUFFERED_PAINTDC
SetBackgroundStyle( wxBG_STYLE_CUSTOM );
#endif
m_ClipBox.SetSize( size );
m_ClipBox.SetX( 0 );
m_ClipBox.SetY( 0 );
m_canStartBlock = -1; // Command block can start if >= 0
m_abortRequest = false;
m_enableMousewheelPan = false;
m_enableZoomNoCenter = false;
m_enableAutoPan = true;
m_ignoreMouseEvents = false;
// Be sure a mouse release button event will be ignored when creating the canvas
// if the mouse click was not made inside the canvas (can happen sometimes, when
// launching a editor from a double click made in another frame)
m_ignoreNextLeftButtonRelease = true;
m_mouseCaptureCallback = NULL;
m_endMouseCaptureCallback = NULL;
wxConfigBase* cfg = Kiface().KifaceSettings();
if( cfg )
{
cfg->Read( ENBL_MOUSEWHEEL_PAN_KEY, &m_enableMousewheelPan, false );
cfg->Read( ENBL_ZOOM_NO_CENTER_KEY, &m_enableZoomNoCenter, false );
cfg->Read( ENBL_AUTO_PAN_KEY, &m_enableAutoPan, true );
}
m_requestAutoPan = false;
m_enableBlockCommands = false;
m_minDragEventCount = 0;
#ifdef __WXMAC__
m_defaultCursor = m_currentCursor = wxCURSOR_CROSS;
m_showCrossHair = false;
#else
m_defaultCursor = m_currentCursor = wxCURSOR_ARROW;
m_showCrossHair = true;
#endif
m_cursorLevel = 0;
m_PrintIsMirrored = false;
m_ClickTimer = (wxTimer*) NULL;
m_doubleClickInterval = 250;
}
EDA_DRAW_PANEL::~EDA_DRAW_PANEL()
{
wxConfigBase* cfg = Kiface().KifaceSettings();
if( cfg )
{
cfg->Write( ENBL_MOUSEWHEEL_PAN_KEY, m_enableMousewheelPan );
cfg->Write( ENBL_ZOOM_NO_CENTER_KEY, m_enableZoomNoCenter );
cfg->Write( ENBL_AUTO_PAN_KEY, m_enableAutoPan );
}
wxDELETE( m_ClickTimer );
}
EDA_DRAW_FRAME* EDA_DRAW_PANEL::GetParent() const
{
wxWindow* mom = wxScrolledWindow::GetParent();
return (EDA_DRAW_FRAME*) mom;
}
void* EDA_DRAW_PANEL::GetDisplayOptions()
{
return GetParent()->GetDisplayOptions();
}
BASE_SCREEN* EDA_DRAW_PANEL::GetScreen()
{
EDA_DRAW_FRAME* parentFrame = GetParent();
return parentFrame->GetScreen();
}
wxPoint EDA_DRAW_PANEL::ToDeviceXY( const wxPoint& pos )
{
wxPoint ret;
INSTALL_UNBUFFERED_DC( dc, this );
ret.x = dc.LogicalToDeviceX( pos.x );
ret.y = dc.LogicalToDeviceY( pos.y );
return ret;
}
wxPoint EDA_DRAW_PANEL::ToLogicalXY( const wxPoint& pos )
{
wxPoint ret;
INSTALL_UNBUFFERED_DC( dc, this );
ret.x = dc.DeviceToLogicalX( pos.x );
ret.y = dc.DeviceToLogicalY( pos.y );
return ret;
}
void EDA_DRAW_PANEL::DrawCrossHair( wxDC* aDC, COLOR4D aColor )
{
if( m_cursorLevel != 0 || aDC == NULL || !m_showCrossHair )
return;
wxPoint cursor = GetParent()->GetCrossHairPosition();
#ifdef USE_WX_GRAPHICS_CONTEXT
// Normally cursor color is set to white, so when it is xored with white
// background, it is painted black effectively. wxGraphicsContext does not have
// xor operation, so we need to invert the color manually.
aColor.Invert();
#else
GRSetDrawMode( aDC, GR_XOR );
#endif
if( GetParent()->GetGalDisplayOptions().m_fullscreenCursor )
{
wxSize clientSize = GetClientSize();
// Y axis
wxPoint lineStart( cursor.x, aDC->DeviceToLogicalY( 0 ) );
wxPoint lineEnd( cursor.x, aDC->DeviceToLogicalY( clientSize.y ) );
GRLine( &m_ClipBox, aDC, lineStart, lineEnd, 0, aColor );
// X axis
lineStart = wxPoint( aDC->DeviceToLogicalX( 0 ), cursor.y );
lineEnd = wxPoint( aDC->DeviceToLogicalX( clientSize.x ), cursor.y );
GRLine( &m_ClipBox, aDC, lineStart, lineEnd, 0, aColor );
}
else
{
int len = aDC->DeviceToLogicalXRel( CURSOR_SIZE );
GRLine( &m_ClipBox, aDC, cursor.x - len, cursor.y,
cursor.x + len, cursor.y, 0, aColor );
GRLine( &m_ClipBox, aDC, cursor.x, cursor.y - len,
cursor.x, cursor.y + len, 0, aColor );
}
}
void EDA_DRAW_PANEL::CrossHairOff( wxDC* DC )
{
DrawCrossHair( DC );
--m_cursorLevel;
}
void EDA_DRAW_PANEL::CrossHairOn( wxDC* DC )
{
++m_cursorLevel;
DrawCrossHair( DC );
if( m_cursorLevel > 0 ) // Shouldn't happen, but just in case ..
m_cursorLevel = 0;
}
double EDA_DRAW_PANEL::GetZoom()
{
return GetScreen()->GetZoom();
}
void EDA_DRAW_PANEL::SetZoom( double zoom )
{
GetScreen()->SetZoom( zoom );
}
wxRealPoint EDA_DRAW_PANEL::GetGrid()
{
return GetScreen()->GetGridSize();
}
bool EDA_DRAW_PANEL::IsPointOnDisplay( const wxPoint& aPosition )
{
wxPoint pos;
EDA_RECT display_rect;
INSTALL_UNBUFFERED_DC( dc, this ); // Refresh the clip box to the entire screen size.
SetClipBox( dc );
display_rect = m_ClipBox;
// Slightly decreased the size of the useful screen area to avoid drawing limits.
#define PIXEL_MARGIN 8
display_rect.Inflate( -PIXEL_MARGIN );
return display_rect.Contains( aPosition );
}
void EDA_DRAW_PANEL::RefreshDrawingRect( const EDA_RECT& aRect, bool aEraseBackground )
{
INSTALL_UNBUFFERED_DC( dc, this );
wxRect rect = aRect;
rect.x = dc.LogicalToDeviceX( rect.x );
rect.y = dc.LogicalToDeviceY( rect.y );
rect.width = dc.LogicalToDeviceXRel( rect.width );
rect.height = dc.LogicalToDeviceYRel( rect.height );
wxLogTrace( kicadTraceCoords,
wxT( "Refresh area: drawing (%d, %d, %d, %d), device (%d, %d, %d, %d)" ),
aRect.GetX(), aRect.GetY(), aRect.GetWidth(), aRect.GetHeight(),
rect.x, rect.y, rect.width, rect.height );
RefreshRect( rect, aEraseBackground );
}
void EDA_DRAW_PANEL::Refresh( bool eraseBackground, const wxRect* rect )
{
if( GetParent()->IsGalCanvasActive() )
{
GetParent()->GetGalCanvas()->Refresh();
}
else
{
wxScrolledWindow::Refresh( eraseBackground, rect );
}
}
wxPoint EDA_DRAW_PANEL::GetScreenCenterLogicalPosition()
{
wxSize size = GetClientSize() / 2;
INSTALL_UNBUFFERED_DC( dc, this );
return wxPoint( dc.DeviceToLogicalX( size.x ), dc.DeviceToLogicalY( size.y ) );
}
void EDA_DRAW_PANEL::MoveCursorToCrossHair()
{
MoveCursor( GetParent()->GetCrossHairPosition() );
}
void EDA_DRAW_PANEL::MoveCursor( const wxPoint& aPosition )
{
if( GetParent()->IsGalCanvasActive() )
return;
int x, y, xPpu, yPpu;
wxPoint screenPos, drawingPos;
wxRect clientRect( wxPoint( 0, 0 ), GetClientSize() );
INSTALL_UNBUFFERED_DC( dc, this );
screenPos.x = dc.LogicalToDeviceX( aPosition.x );
screenPos.y = dc.LogicalToDeviceY( aPosition.y );
// Scroll if the requested mouse position cursor is outside the drawing area.
if( !clientRect.Contains( screenPos ) )
{
GetViewStart( &x, &y );
GetScrollPixelsPerUnit( &xPpu, &yPpu );
CalcUnscrolledPosition( screenPos.x, screenPos.y, &drawingPos.x, &drawingPos.y );
wxLogTrace( kicadTraceCoords,
wxT( "MoveCursor() initial screen position(%d, %d) " ) \
wxT( "rectangle(%d, %d, %d, %d) view(%d, %d)" ),
screenPos.x, screenPos.y, clientRect.x, clientRect.y,
clientRect.width, clientRect.height, x, y );
if( screenPos.y < clientRect.GetTop() )
y -= m_scrollIncrementY * yPpu;
else if( screenPos.y > clientRect.GetBottom() )
y += m_scrollIncrementY * yPpu;
else if( clientRect.GetRight() < screenPos.x )
x += m_scrollIncrementX * xPpu;
else
x -= m_scrollIncrementX * xPpu;
Scroll( x, y );
CalcScrolledPosition( drawingPos.x, drawingPos.y, &screenPos.x, &screenPos.y );
wxLogTrace( kicadTraceCoords,
wxT( "MoveCursor() scrolled screen position(%d, %d) view(%d, %d)" ),
screenPos.x, screenPos.y, x, y );
}
WarpPointer( screenPos.x, screenPos.y );
}
void EDA_DRAW_PANEL::OnActivate( wxActivateEvent& event )
{
m_canStartBlock = -1; // Block Command can't start
event.Skip();
}
void EDA_DRAW_PANEL::OnTimer( wxTimerEvent& event )
{
INSTALL_UNBUFFERED_DC( DC, this );
DC.SetBackground( *wxBLACK_BRUSH );
GetParent()->OnLeftClick( &DC, m_CursorClickPos );
}
void EDA_DRAW_PANEL::OnScroll( wxScrollWinEvent& event )
{
int id = event.GetEventType();
int x, y;
int ppux, ppuy;
int csizeX, csizeY;
int unitsX, unitsY;
GetViewStart( &x, &y );
GetScrollPixelsPerUnit( &ppux, &ppuy );
GetClientSize( &csizeX, &csizeY );
GetVirtualSize( &unitsX, &unitsY );
int tmpX = x;
int tmpY = y;
csizeX /= ppux;
csizeY /= ppuy;
unitsX /= ppux;
unitsY /= ppuy;
int dir = event.GetOrientation(); // wxHORIZONTAL or wxVERTICAL
// On windows and on wxWidgets >= 2.9.5 and < 3.1,
// there is a bug in mousewheel event which always generates 2 scroll events
// (should be the case only for the default mousewheel event)
// with id = wxEVT_SCROLLWIN_LINEUP or wxEVT_SCROLLWIN_LINEDOWN
// so we skip these events.
// Note they are here just in case, because they are not actually used
// in Kicad
#if wxCHECK_VERSION( 3, 1, 0 ) || !wxCHECK_VERSION( 2, 9, 5 ) || ( !defined (__WINDOWS__) && !defined (__WXMAC__) )
int maxX = unitsX - csizeX;
int maxY = unitsY - csizeY;
if( id == wxEVT_SCROLLWIN_LINEUP )
{
if( dir == wxHORIZONTAL )
{
x -= m_scrollIncrementX;
if( x < 0 )
x = 0;
}
else
{
y -= m_scrollIncrementY;
if( y < 0 )
y = 0;
}
}
else if( id == wxEVT_SCROLLWIN_LINEDOWN )
{
if( dir == wxHORIZONTAL )
{
x += m_scrollIncrementX;
if( x > maxX )
x = maxX;
}
else
{
y += m_scrollIncrementY;
if( y > maxY )
y = maxY;
}
}
else
#endif
if( id == wxEVT_SCROLLWIN_THUMBTRACK )
{
if( dir == wxHORIZONTAL )
x = event.GetPosition();
else
y = event.GetPosition();
}
else
{
event.Skip();
return;
}
wxLogTrace( kicadTraceCoords,
wxT( "Setting scroll bars ppuX=%d, ppuY=%d, unitsX=%d, unitsY=%d, posX=%d, posY=%d" ),
ppux, ppuy, unitsX, unitsY, x, y );
double scale = GetParent()->GetScreen()->GetScalingFactor();
wxPoint center = GetParent()->GetScrollCenterPosition();
center.x += KiROUND( (double) ( x - tmpX ) / scale );
center.y += KiROUND( (double) ( y - tmpY ) / scale );
GetParent()->SetScrollCenterPosition( center );
Scroll( x, y );
event.Skip();
}
void EDA_DRAW_PANEL::SetClipBox( wxDC& aDC, const wxRect* aRect )
{
wxRect clipBox;
// Use the entire visible device area if no clip area was defined.
if( aRect == NULL )
{
BASE_SCREEN* Screen = GetScreen();
if( !Screen )
return;
Screen->m_StartVisu = CalcUnscrolledPosition( wxPoint( 0, 0 ) );
clipBox.SetSize( GetClientSize() );
int scrollX, scrollY;
double scalar = Screen->GetScalingFactor();
scrollX = KiROUND( Screen->GetGridSize().x * scalar );
scrollY = KiROUND( Screen->GetGridSize().y * scalar );
m_scrollIncrementX = std::max( GetClientSize().x / 8, scrollX );
m_scrollIncrementY = std::max( GetClientSize().y / 8, scrollY );
Screen->m_ScrollbarPos.x = GetScrollPos( wxHORIZONTAL );
Screen->m_ScrollbarPos.y = GetScrollPos( wxVERTICAL );
}
else
{
clipBox = *aRect;
}
// Pad clip box in device units.
clipBox.Inflate( CLIP_BOX_PADDING );
// Convert from device units to drawing units.
m_ClipBox.SetOrigin( wxPoint( aDC.DeviceToLogicalX( clipBox.x ),
aDC.DeviceToLogicalY( clipBox.y ) ) );
m_ClipBox.SetSize( wxSize( aDC.DeviceToLogicalXRel( clipBox.width ),
aDC.DeviceToLogicalYRel( clipBox.height ) ) );
wxLogTrace( kicadTraceCoords,
wxT( "Device clip box=(%d, %d, %d, %d), Logical clip box=(%d, %d, %d, %d)" ),
clipBox.x, clipBox.y, clipBox.width, clipBox.height,
m_ClipBox.GetX(), m_ClipBox.GetY(), m_ClipBox.GetWidth(), m_ClipBox.GetHeight() );
}
void EDA_DRAW_PANEL::EraseScreen( wxDC* DC )
{
GRSetDrawMode( DC, GR_COPY );
COLOR4D bgColor = GetParent()->GetDrawBgColor();
GRSFilledRect( NULL, DC, m_ClipBox.GetX(), m_ClipBox.GetY(),
m_ClipBox.GetRight(), m_ClipBox.GetBottom(),
0, bgColor, bgColor );
// Set to one (1) to draw bounding box validate bounding box calculation.
#if DEBUG_SHOW_CLIP_RECT
EDA_RECT bBox = m_ClipBox;
GRRect( NULL, DC, bBox.GetOrigin().x, bBox.GetOrigin().y,
bBox.GetEnd().x, bBox.GetEnd().y, 0, LIGHTMAGENTA );
#endif
}
void EDA_DRAW_PANEL::DoPrepareDC( wxDC& dc )
{
wxScrolledWindow::DoPrepareDC( dc );
if( GetScreen() != NULL )
{
double scale = GetScreen()->GetScalingFactor();
dc.SetUserScale( scale, scale );
wxPoint pt = GetScreen()->m_DrawOrg;
dc.SetLogicalOrigin( pt.x, pt.y );
}
SetClipBox( dc ); // Reset the clip box to the entire screen.
GRResetPenAndBrush( &dc );
dc.SetBackgroundMode( wxTRANSPARENT );
}
void EDA_DRAW_PANEL::OnPaint( wxPaintEvent& event )
{
if( GetScreen() == NULL )
{
event.Skip();
return;
}
INSTALL_PAINTDC( paintDC, this );
wxRect region = GetUpdateRegion().GetBox();
SetClipBox( paintDC, &region );
ReDraw( &paintDC, true );
}
void EDA_DRAW_PANEL::ReDraw( wxDC* DC, bool erasebg )
{
BASE_SCREEN* Screen = GetScreen();
if( Screen == NULL )
return;
COLOR4D bgColor = GetParent()->GetDrawBgColor();
// TODO(JE): Is this correct?
if( bgColor.GetBrightness() > 0.5 )
{
g_XorMode = GR_NXOR;
g_GhostColor = BLACK;
}
else
{
g_XorMode = GR_XOR;
g_GhostColor = WHITE;
}
GRResetPenAndBrush( DC );
DC->SetBackground( wxBrush( bgColor.ToColour() ) );
DC->SetBackgroundMode( wxSOLID );
if( erasebg )
EraseScreen( DC );
GetParent()->RedrawActiveWindow( DC, erasebg );
// Verfies that the clipping is working correctly. If these two sets of numbers are
// not the same or really close. The clipping algorithms are broken.
wxLogTrace( kicadTraceCoords,
wxT( "Clip box: (%d, %d, %d, %d), Draw extents (%d, %d, %d, %d)" ),
m_ClipBox.GetX(), m_ClipBox.GetY(), m_ClipBox.GetRight(), m_ClipBox.GetBottom(),
DC->MinX(), DC->MinY(), DC->MaxX(), DC->MaxY() );
}
void EDA_DRAW_PANEL::SetEnableMousewheelPan( bool aEnable )
{
m_enableMousewheelPan = aEnable;
if( GetParent()->IsGalCanvasActive() )
GetParent()->GetGalCanvas()->GetViewControls()->EnableMousewheelPan( aEnable );
}
void EDA_DRAW_PANEL::SetEnableAutoPan( bool aEnable )
{
m_enableAutoPan = aEnable;
if( GetParent()->IsGalCanvasActive() )
GetParent()->GetGalCanvas()->GetViewControls()->EnableAutoPan( aEnable );
}
void EDA_DRAW_PANEL::SetEnableZoomNoCenter( bool aEnable )
{
m_enableZoomNoCenter = aEnable;
if( GetParent()->IsGalCanvasActive() )
GetParent()->GetGalCanvas()->GetViewControls()->EnableCursorWarping( !aEnable );
}
void EDA_DRAW_PANEL::DrawBackGround( wxDC* DC )
{
GRSetDrawMode( DC, GR_COPY );
if( GetParent()->IsGridVisible() )
DrawGrid( DC );
// Draw axis
if( GetParent()->m_showAxis )
{
COLOR4D axis_color = COLOR4D( BLUE );
wxSize pageSize = GetParent()->GetPageSizeIU();
// Draw the Y axis
GRLine( &m_ClipBox, DC, 0, -pageSize.y, 0, pageSize.y, 0, axis_color );
// Draw the X axis
GRLine( &m_ClipBox, DC, -pageSize.x, 0, pageSize.x, 0, 0, axis_color );
}
if( GetParent()->m_showOriginAxis )
DrawAuxiliaryAxis( DC, GR_COPY );
if( GetParent()->m_showGridAxis )
DrawGridAxis( DC, GR_COPY, GetParent()->GetGridOrigin() );
}
void EDA_DRAW_PANEL::DrawGrid( wxDC* aDC )
{
#define MIN_GRID_SIZE 10 // min grid size in pixels to allow drawing
BASE_SCREEN* screen = GetScreen();
wxRealPoint gridSize;
wxSize screenSize;
wxPoint org;
wxRealPoint screenGridSize;
/* The grid must be visible. this is possible only is grid value
* and zoom value are sufficient
*/
gridSize = screen->GetGridSize();
screen->m_StartVisu = CalcUnscrolledPosition( wxPoint( 0, 0 ) );
screenSize = GetClientSize();
screenGridSize.x = aDC->LogicalToDeviceXRel( KiROUND( gridSize.x ) );
screenGridSize.y = aDC->LogicalToDeviceYRel( KiROUND( gridSize.y ) );
org = m_ClipBox.GetPosition();
if( screenGridSize.x < MIN_GRID_SIZE || screenGridSize.y < MIN_GRID_SIZE )
{
screenGridSize.x *= 2.0;
screenGridSize.y *= 2.0;
gridSize.x *= 2.0;
gridSize.y *= 2.0;
}
if( screenGridSize.x < MIN_GRID_SIZE || screenGridSize.y < MIN_GRID_SIZE )
return;
org = GetParent()->GetNearestGridPosition( org, &gridSize );
// Setting the nearest grid position can select grid points outside the clip box.
// Incrementing the start point by one grid step should prevent drawing grid points
// outside the clip box.
if( org.x < m_ClipBox.GetX() )
org.x += KiROUND( gridSize.x );
if( org.y < m_ClipBox.GetY() )
org.y += KiROUND( gridSize.y );
// Use a pixel based draw to display grid. There are a lot of calls, so the cost is
// high and grid is slowly drawn on some platforms. Another way using blit transfert was used,
// a long time ago, but it did not give very good results.
// The better way is highly dependent on the platform and the graphic card.
int xpos;
double right = ( double ) m_ClipBox.GetRight();
double bottom = ( double ) m_ClipBox.GetBottom();
#if defined( USE_WX_GRAPHICS_CONTEXT )
wxGCDC *gcdc = wxDynamicCast( aDC, wxGCDC );
if( gcdc )
{
// Much faster grid drawing on systems using wxGraphicsContext
wxGraphicsContext *gc = gcdc->GetGraphicsContext();
// Grid point size
const int gsz = 1;
const double w = aDC->DeviceToLogicalXRel( gsz );
const double h = aDC->DeviceToLogicalYRel( gsz );
// Use our own pen
wxPen pen( GetParent()->GetGridColor().ToColour(), h );
pen.SetCap( wxCAP_BUTT );
gc->SetPen( pen );
// draw grid
wxGraphicsPath path = gc->CreatePath();
for( double x = (double) org.x - w/2.0; x <= right - w/2.0; x += gridSize.x )
{
for( double y = (double) org.y; y <= bottom; y += gridSize.y )
{
path.MoveToPoint( x, y );
path.AddLineToPoint( x+w, y );
}
}
gc->StrokePath( path );
}
else
#endif
{
GRSetColorPen( aDC, GetParent()->GetGridColor() );
for( double x = (double) org.x; x <= right; x += gridSize.x )
{
xpos = KiROUND( x );
for( double y = (double) org.y; y <= bottom; y += gridSize.y )
{
aDC->DrawPoint( xpos, KiROUND( y ) );
}
}
}
}
// Set to 1 to draw auxirilary axis as lines, 0 to draw as target (circle with cross)
#define DRAW_AXIS_AS_LINES 0
// Size in pixels of the target shape
#define AXIS_SIZE_IN_PIXELS 15
void EDA_DRAW_PANEL::DrawAuxiliaryAxis( wxDC* aDC, GR_DRAWMODE aDrawMode )
{
wxPoint origin = GetParent()->GetAuxOrigin();
if( origin == wxPoint( 0, 0 ) )
return;
COLOR4D color = COLOR4D( RED );
GRSetDrawMode( aDC, aDrawMode );
#if DRAW_AXIS_AS_LINES
wxSize pageSize = GetParent()->GetPageSizeIU();
// Draw the Y axis
GRLine( &m_ClipBox, aDC, origin.x, -pageSize.y,
origin.x, pageSize.y, 0, color );
// Draw the X axis
GRLine( &m_ClipBox, aDC, -pageSize.x, origin.y,
pageSize.x, origin.y, 0, color );
#else
int radius = aDC->DeviceToLogicalXRel( AXIS_SIZE_IN_PIXELS );
int linewidth = aDC->DeviceToLogicalXRel( 1 );
GRSetColorPen( aDC, color, linewidth );
GRLine( &m_ClipBox, aDC, origin.x, origin.y-radius,
origin.x, origin.y+radius, 0, color );
// Draw the + shape
GRLine( &m_ClipBox, aDC, origin.x-radius, origin.y,
origin.x+radius, origin.y, 0, color );
GRCircle( &m_ClipBox, aDC, origin, radius, linewidth, color );
#endif
}
void EDA_DRAW_PANEL::DrawGridAxis( wxDC* aDC, GR_DRAWMODE aDrawMode, const wxPoint& aGridOrigin )
{
if( !GetParent()->m_showGridAxis || ( !aGridOrigin.x && !aGridOrigin.y ) )
return;
COLOR4D color = GetParent()->GetGridColor();
GRSetDrawMode( aDC, aDrawMode );
#if DRAW_AXIS_AS_LINES
wxSize pageSize = GetParent()->GetPageSizeIU();
// Draw the Y axis
GRLine( &m_ClipBox, aDC, aGridOrigin.x, -pageSize.y,
aGridOrigin.x, pageSize.y, 0, color );
// Draw the X axis
GRLine( &m_ClipBox, aDC, -pageSize.x, aGridOrigin.y,
pageSize.x, aGridOrigin.y, 0, color );
#else
int radius = aDC->DeviceToLogicalXRel( AXIS_SIZE_IN_PIXELS );
int linewidth = aDC->DeviceToLogicalXRel( 1 );
GRSetColorPen( aDC, GetParent()->GetGridColor(), linewidth );
GRLine( &m_ClipBox, aDC, aGridOrigin.x-radius, aGridOrigin.y-radius,
aGridOrigin.x+radius, aGridOrigin.y+radius, 0, color );
// Draw the X shape
GRLine( &m_ClipBox, aDC, aGridOrigin.x+radius, aGridOrigin.y-radius,
aGridOrigin.x-radius, aGridOrigin.y+radius, 0, color );
GRCircle( &m_ClipBox, aDC, aGridOrigin, radius, linewidth, color );
#endif
}
bool EDA_DRAW_PANEL::OnRightClick( wxMouseEvent& event )
{
wxPoint pos;
wxMenu MasterMenu;
INSTALL_UNBUFFERED_DC( dc, this );
pos = event.GetLogicalPosition( dc );
if( !GetParent()->OnRightClick( pos, &MasterMenu ) )
return false;
GetParent()->AddMenuZoomAndGrid( &MasterMenu );
pos = event.GetPosition();
m_ignoreMouseEvents = true;
PopupMenu( &MasterMenu, pos );
// The ZoomAndGrid menu is only invoked over empty space so there's no point in warping
// the cursor back to the crosshair, and it's very annoying if one clicked out of the menu.
m_ignoreMouseEvents = false;
return true;
}
void EDA_DRAW_PANEL::OnMouseEntering( wxMouseEvent& aEvent )
{
// This is an ugly hack that fixes some cross hair display bugs when the mouse leaves the
// canvas area during middle button mouse panning.
if( m_cursorLevel != 0 )
m_cursorLevel = 0;
aEvent.Skip();
}
void EDA_DRAW_PANEL::OnMouseLeaving( wxMouseEvent& event )
{
if( m_mouseCaptureCallback == NULL ) // No command in progress.
m_requestAutoPan = false;
if( !m_enableAutoPan || !m_requestAutoPan || m_ignoreMouseEvents )
return;
// Auto pan when mouse has left the client window
// Ensure the cross_hair position is updated,
// because it will be used to center the screen.
// We use a position inside the client window
wxRect area( wxPoint( 0, 0 ), GetClientSize() );
wxPoint cross_hair_pos = event.GetPosition();
// Certain window managers (e.g. awesome wm) incorrectly trigger "on leave" event,
// therefore test if the cursor has really left the panel area
if( !area.Contains( cross_hair_pos ) )
{
INSTALL_UNBUFFERED_DC( dc, this );
cross_hair_pos.x = dc.DeviceToLogicalX( cross_hair_pos.x );
cross_hair_pos.y = dc.DeviceToLogicalY( cross_hair_pos.y );
GetParent()->SetCrossHairPosition( cross_hair_pos );
wxCommandEvent cmd( wxEVT_COMMAND_MENU_SELECTED, ID_POPUP_ZOOM_CENTER );
cmd.SetEventObject( this );
GetEventHandler()->ProcessEvent( cmd );
}
event.Skip();
}
void EDA_DRAW_PANEL::OnMouseWheel( wxMouseEvent& event )
{
if( m_ignoreMouseEvents )
return;
wxRect rect = wxRect( wxPoint( 0, 0 ), GetClientSize() );
// Ignore scroll events if the cursor is outside the drawing area.
if( event.GetWheelRotation() == 0 || !GetParent()->IsEnabled()
|| !rect.Contains( event.GetPosition() ) )
{
wxLogTrace( kicadTraceCoords,
wxT( "OnMouseWheel() position(%d, %d) rectangle(%d, %d, %d, %d)" ),
event.GetPosition().x, event.GetPosition().y,
rect.x, rect.y, rect.width, rect.height );
event.Skip();
return;
}
INSTALL_UNBUFFERED_DC( dc, this );
GetParent()->SetCrossHairPosition( event.GetLogicalPosition( dc ) );
wxCommandEvent cmd( wxEVT_COMMAND_MENU_SELECTED );
cmd.SetEventObject( this );
bool offCenterReq = event.ControlDown() && event.ShiftDown();
offCenterReq = offCenterReq || m_enableZoomNoCenter;
int axis = event.GetWheelAxis();
int wheelRotation = event.GetWheelRotation();
if( m_enableMousewheelPan )
{
// MousewheelPAN + Ctrl = zooming
if( event.ControlDown() && !event.ShiftDown() )
{
if( wheelRotation > 0 )
cmd.SetId( ID_POPUP_ZOOM_IN );
else if( wheelRotation < 0)
cmd.SetId( ID_POPUP_ZOOM_OUT );
}
// MousewheelPAN + Shift = horizontal scrolling
// Without modifiers MousewheelPAN - just pan
else
{
if( event.ShiftDown() && !event.ControlDown() )
axis = wxMOUSE_WHEEL_HORIZONTAL;
wxPoint newStart = GetViewStart();
wxPoint center = GetParent()->GetScrollCenterPosition();
double scale = GetParent()->GetScreen()->GetScalingFactor();
if( axis == wxMOUSE_WHEEL_HORIZONTAL )
{
newStart.x += wheelRotation;
center.x += KiROUND( (double) wheelRotation / scale );
}
else
{
newStart.y -= wheelRotation;
center.y -= KiROUND( (double) wheelRotation / scale );
}
Scroll( newStart );
GetParent()->SetScrollCenterPosition( center );
GetParent()->SetCrossHairPosition( center, true );
GetParent()->RedrawScreen( center, false );
}
}
else if( wheelRotation > 0 )
{
if( event.ShiftDown() && !event.ControlDown() )
cmd.SetId( ID_PAN_UP );
else if( event.ControlDown() && !event.ShiftDown() )
cmd.SetId( ID_PAN_LEFT );
else if( offCenterReq )
cmd.SetId( ID_OFFCENTER_ZOOM_IN );
else
cmd.SetId( ID_POPUP_ZOOM_IN );
}
else if( wheelRotation < 0 )
{
if( event.ShiftDown() && !event.ControlDown() )
cmd.SetId( ID_PAN_DOWN );
else if( event.ControlDown() && !event.ShiftDown() )
cmd.SetId( ID_PAN_RIGHT );
else if( offCenterReq )
cmd.SetId( ID_OFFCENTER_ZOOM_OUT );
else
cmd.SetId( ID_POPUP_ZOOM_OUT );
}
if( cmd.GetId() )
GetEventHandler()->ProcessEvent( cmd );
event.Skip();
}
#if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
void EDA_DRAW_PANEL::OnMagnify( wxMouseEvent& event )
{
// Scale the panel around our cursor position.
bool warpCursor = false;
wxPoint cursorPosition = GetParent()->GetCursorPosition( false );
wxPoint centerPosition = GetParent()->GetScrollCenterPosition();
wxPoint vector = centerPosition - cursorPosition;
double magnification = ( event.GetMagnification() + 1.0f );
double scaleFactor = GetZoom() / magnification;
// Scale the vector between the cursor and center point
vector.x /= magnification;
vector.y /= magnification;
SetZoom(scaleFactor);
// Recenter the window along our scaled vector such that the
// cursor becomes our scale axis, remaining fixed on screen
GetParent()->RedrawScreen( cursorPosition + vector, warpCursor );
event.Skip();
}
#endif
void EDA_DRAW_PANEL::OnMouseEvent( wxMouseEvent& event )
{
int localbutt = 0;
BASE_SCREEN* screen = GetScreen();
if( !screen )
return;
/* Adjust value to filter mouse displacement before consider the drag
* mouse is really a drag command, not just a movement while click
*/
#define MIN_DRAG_COUNT_FOR_START_BLOCK_COMMAND 5
if( event.Leaving() )
m_canStartBlock = -1;
if( !IsMouseCaptured() ) // No mouse capture in progress.
m_requestAutoPan = false;
if( GetParent()->IsActive() )
SetFocus();
else
return;
if( !event.IsButton() && !event.Moving() && !event.Dragging() )
return;
if( event.RightDown() )
{
OnRightClick( event );
return;
}
if( m_ignoreMouseEvents )
return;
if( event.LeftDown() )
localbutt = GR_M_LEFT_DOWN;
if( event.ButtonDClick( 1 ) )
localbutt = GR_M_LEFT_DOWN | GR_M_DCLICK;
if( event.MiddleDown() )
localbutt = GR_M_MIDDLE_DOWN;
INSTALL_UNBUFFERED_DC( DC, this );
DC.SetBackground( *wxBLACK_BRUSH );
// Compute the cursor position in drawing (logical) units.
GetParent()->SetMousePosition( event.GetLogicalPosition( DC ) );
int kbstat = 0;
if( event.ShiftDown() )
kbstat |= GR_KB_SHIFT;
if( event.ControlDown() )
kbstat |= GR_KB_CTRL;
if( event.AltDown() )
kbstat |= GR_KB_ALT;
// Calling Double Click and Click functions :
if( localbutt == (int) ( GR_M_LEFT_DOWN | GR_M_DCLICK ) )
{
if( m_ClickTimer )
{
m_ClickTimer->Stop();
wxDELETE( m_ClickTimer );
}
GetParent()->OnLeftDClick( &DC, GetParent()->RefPos( true ) );
// inhibit a response to the mouse left button release,
// because we have a double click, and we do not want a new
// OnLeftClick command at end of this Double Click
m_ignoreNextLeftButtonRelease = true;
}
else if( event.LeftUp() )
{
// A block command is in progress: a left up is the end of block
// or this is the end of a double click, already seen
// Note also m_ignoreNextLeftButtonRelease can be set by
// the call to OnLeftClick(), so do not change it after calling OnLeftClick
bool ignoreEvt = m_ignoreNextLeftButtonRelease;
m_ignoreNextLeftButtonRelease = false;
if( screen->m_BlockLocate.GetState() == STATE_NO_BLOCK && !ignoreEvt )
{
EDA_ITEM* item = screen->GetCurItem();
m_CursorClickPos = GetParent()->RefPos( true );
// If we have an item already selected, or we are using a tool,
// we won't use the disambiguation menu so process the click immediately
if( ( item && item->GetFlags() ) || GetParent()->GetToolId() != ID_NO_TOOL_SELECTED )
GetParent()->OnLeftClick( &DC, m_CursorClickPos );
else
{
wxDELETE( m_ClickTimer );
m_ClickTimer = new wxTimer(this, ID_MOUSE_DOUBLECLICK);
m_ClickTimer->StartOnce( m_doubleClickInterval );
}
}
}
else if( !event.LeftIsDown() )
{
/* be sure there is a response to a left button release command
* even when a LeftUp event is not seen. This happens when a
* double click opens a dialog box, and the release mouse button
* is made when the dialog box is opened.
*/
m_ignoreNextLeftButtonRelease = false;
}
if( event.ButtonDown( wxMOUSE_BTN_MIDDLE ) )
{
m_PanStartCenter = GetParent()->GetScrollCenterPosition();
m_PanStartEventPosition = event.GetPosition();
INSTALL_UNBUFFERED_DC( dc, this );
CrossHairOff( &dc );
SetCursor( wxCURSOR_SIZING );
}
if( event.ButtonUp( wxMOUSE_BTN_MIDDLE ) )
{
INSTALL_UNBUFFERED_DC( dc, this );
CrossHairOn( &dc );
SetCursor( (wxStockCursor) m_currentCursor );
}
if( event.MiddleIsDown() )
{
wxPoint currentPosition = event.GetPosition();
double scale = GetParent()->GetScreen()->GetScalingFactor();
int x = m_PanStartCenter.x +
KiROUND( (double) ( m_PanStartEventPosition.x - currentPosition.x ) / scale );
int y = m_PanStartCenter.y +
KiROUND( (double) ( m_PanStartEventPosition.y - currentPosition.y ) / scale );
GetParent()->RedrawScreen( wxPoint( x, y ), false );
}
// Calling the general function on mouse changes (and pseudo key commands)
GetParent()->GeneralControl( &DC, event.GetLogicalPosition( DC ), 0 );
/*******************************/
/* Control of block commands : */
/*******************************/
// Command block can't start if mouse is dragging a new panel
static EDA_DRAW_PANEL* lastPanel;
if( lastPanel != this )
{
m_minDragEventCount = 0;
m_canStartBlock = -1;
}
/* A new command block can start after a release buttons
* and if the drag is enough
* This is to avoid a false start block when a dialog box is dismissed,
* or when changing panels in hierarchy navigation
* or when clicking while and moving mouse
*/
if( !event.LeftIsDown() && !event.MiddleIsDown() )
{
m_minDragEventCount = 0;
m_canStartBlock = 0;
/* Remember the last cursor position when a drag mouse starts
* this is the last position ** before ** clicking a button
* this is useful to start a block command from the point where the
* mouse was clicked first
* (a filter creates a delay for the real block command start, and
* we must remember this point)
*/
m_CursorStartPos = GetParent()->GetCrossHairPosition();
}
if( m_enableBlockCommands && !(localbutt & GR_M_DCLICK) )
{
if( !screen->IsBlockActive() )
{
screen->m_BlockLocate.SetOrigin( m_CursorStartPos );
}
if( event.LeftDown() )
{
if( screen->m_BlockLocate.GetState() == STATE_BLOCK_MOVE )
{
m_requestAutoPan = false;
GetParent()->HandleBlockPlace( &DC );
m_ignoreNextLeftButtonRelease = true;
}
}
else if( ( m_canStartBlock >= 0 ) && event.LeftIsDown() && !IsMouseCaptured() )
{
// Mouse is dragging: if no block in progress, start a block command.
if( screen->m_BlockLocate.GetState() == STATE_NO_BLOCK )
{
// Start a block command
int cmd_type = kbstat;
// A block command is started if the drag is enough. A small
// drag is ignored (it is certainly a little mouse move when
// clicking) not really a drag mouse
if( m_minDragEventCount < MIN_DRAG_COUNT_FOR_START_BLOCK_COMMAND )
m_minDragEventCount++;
else
{
auto cmd = (GetParent()->GetToolId() == ID_ZOOM_SELECTION) ? BLOCK_ZOOM : 0;
if( !GetParent()->HandleBlockBegin( &DC, cmd_type, m_CursorStartPos, cmd ) )
{
// should not occur: error
GetParent()->DisplayToolMsg(
wxT( "EDA_DRAW_PANEL::OnMouseEvent() Block Error" ) );
}
else
{
m_requestAutoPan = true;
SetCursor( wxCURSOR_SIZING );
}
}
}
}
if( event.ButtonUp( wxMOUSE_BTN_LEFT ) )
{
/* Release the mouse button: end of block.
* The command can finish (DELETE) or have a next command (MOVE,
* COPY). However the block command is canceled if the block
* size is small because a block command filtering is already
* made, this case happens, but only when the on grid cursor has
* not moved.
*/
#define BLOCK_MINSIZE_LIMIT 1
bool BlockIsSmall =
( std::abs( screen->m_BlockLocate.GetWidth() ) < BLOCK_MINSIZE_LIMIT )
&& ( std::abs( screen->m_BlockLocate.GetHeight() ) < BLOCK_MINSIZE_LIMIT );
if( (screen->m_BlockLocate.GetState() != STATE_NO_BLOCK) && BlockIsSmall )
{
if( m_endMouseCaptureCallback )
{
m_endMouseCaptureCallback( this, &DC );
m_requestAutoPan = false;
}
SetCursor( (wxStockCursor) m_currentCursor );
}
else if( screen->m_BlockLocate.GetState() == STATE_BLOCK_END )
{
m_requestAutoPan = false;
GetParent()->HandleBlockEnd( &DC );
SetCursor( (wxStockCursor) m_currentCursor );
if( screen->m_BlockLocate.GetState() == STATE_BLOCK_MOVE )
{
m_requestAutoPan = true;
SetCursor( wxCURSOR_HAND );
}
}
}
}
// End of block command on a double click
// To avoid an unwanted block move command if the mouse is moved while double clicking
if( localbutt == (int) ( GR_M_LEFT_DOWN | GR_M_DCLICK ) )
{
if( !screen->IsBlockActive() && IsMouseCaptured() )
{
m_endMouseCaptureCallback( this, &DC );
}
}
lastPanel = this;
#ifdef WXGTK3
// Screen has to be updated on every operation, otherwise the cursor leaves a trail (when xor
// operation is changed to copy) or is not updated at all.
Refresh();
#endif
}
void EDA_DRAW_PANEL::OnCharHook( wxKeyEvent& event )
{
wxLogTrace( kicadTraceKeyEvent, "EDA_DRAW_PANEL::OnCharHook %s", dump( event ) );
event.Skip();
}
void EDA_DRAW_PANEL::OnKeyEvent( wxKeyEvent& event )
{
int localkey;
wxPoint pos;
wxLogTrace( kicadTraceKeyEvent, "EDA_DRAW_PANEL::OnKeyEvent %s", dump( event ) );
localkey = event.GetKeyCode();
bool keyWasHandled = false;
switch( localkey )
{
default:
break;
case WXK_ESCAPE:
m_abortRequest = true;
if( IsMouseCaptured() )
EndMouseCapture();
else
EndMouseCapture( ID_NO_TOOL_SELECTED, m_defaultCursor, wxEmptyString );
keyWasHandled = true; // The key is captured: the key event must not be skipped
break;
}
/* Normalize keys code to easily handle keys from Ctrl+A to Ctrl+Z
* They have an ascii code from 1 to 27 remapped
* to GR_KB_CTRL + 'A' to GR_KB_CTRL + 'Z'
*/
if( event.ControlDown() && localkey >= WXK_CONTROL_A && localkey <= WXK_CONTROL_Z )
localkey += 'A' - 1;
/* Disallow shift for keys that have two keycodes on them (e.g. number and
* punctuation keys) leaving only the "letter keys" of A-Z.
* Then, you can have, e.g. Ctrl-5 and Ctrl-% (GB layout)
* and Ctrl-( and Ctrl-5 (FR layout).
* Otherwise, you'd have to have to say Ctrl-Shift-5 on a FR layout
*/
bool keyIsLetter = ( localkey >= 'A' && localkey <= 'Z' ) ||
( localkey >= 'a' && localkey <= 'z' );
if( event.ShiftDown() && ( keyIsLetter || localkey > 256 ) )
localkey |= GR_KB_SHIFT;
if( event.ControlDown() )
localkey |= GR_KB_CTRL;
if( event.AltDown() )
localkey |= GR_KB_ALT;
INSTALL_UNBUFFERED_DC( DC, this );
// Some key commands use the current mouse position: refresh it.
pos = wxGetMousePosition() - GetScreenPosition();
// Compute the cursor position in drawing units. Also known as logical units to wxDC.
pos = wxPoint( DC.DeviceToLogicalX( pos.x ), DC.DeviceToLogicalY( pos.y ) );
GetParent()->SetMousePosition( pos );
if( !GetParent()->GeneralControl( &DC, pos, localkey ) && !keyWasHandled )
event.Skip(); // Skip this event only when the key was not handled
}
void EDA_DRAW_PANEL::OnPan( wxCommandEvent& event )
{
int x, y;
int ppux, ppuy;
int unitsX, unitsY;
int maxX, maxY;
int tmpX, tmpY;
GetViewStart( &x, &y );
GetScrollPixelsPerUnit( &ppux, &ppuy );
GetVirtualSize( &unitsX, &unitsY );
tmpX = x;
tmpY = y;
maxX = unitsX;
maxY = unitsY;
unitsX /= ppux;
unitsY /= ppuy;
wxLogTrace( kicadTraceCoords,
wxT( "Scroll center position before pan: (%d, %d)" ), tmpX, tmpY );
switch( event.GetId() )
{
case ID_PAN_UP:
y -= m_scrollIncrementY;
break;
case ID_PAN_DOWN:
y += m_scrollIncrementY;
break;
case ID_PAN_LEFT:
x -= m_scrollIncrementX;
break;
case ID_PAN_RIGHT:
x += m_scrollIncrementX;
break;
default:
wxLogDebug( wxT( "Unknown ID %d in EDA_DRAW_PANEL::OnPan()." ), event.GetId() );
}
bool updateCenterScrollPos = true;
if( x < 0 )
{
x = 0;
updateCenterScrollPos = false;
}
if( y < 0 )
{
y = 0;
updateCenterScrollPos = false;
}
if( x > maxX )
{
x = maxX;
updateCenterScrollPos = false;
}
if( y > maxY )
{
y = maxY;
updateCenterScrollPos = false;
}
// Don't update the scroll position beyond the scroll limits.
if( updateCenterScrollPos )
{
double scale = GetParent()->GetScreen()->GetScalingFactor();
wxPoint center = GetParent()->GetScrollCenterPosition();
center.x += KiROUND( (double) ( x - tmpX ) / scale );
center.y += KiROUND( (double) ( y - tmpY ) / scale );
GetParent()->SetScrollCenterPosition( center );
wxLogTrace( kicadTraceCoords,
wxT( "Scroll center position after pan: (%d, %d)" ), center.x, center.y );
}
Scroll( x/ppux, y/ppuy );
}
void EDA_DRAW_PANEL::EndMouseCapture( int id, int cursor, const wxString& title,
bool aCallEndFunc )
{
if( m_mouseCaptureCallback && m_endMouseCaptureCallback && aCallEndFunc )
{
INSTALL_UNBUFFERED_DC( dc, this );
m_endMouseCaptureCallback( this, &dc );
}
m_mouseCaptureCallback = NULL;
m_endMouseCaptureCallback = NULL;
m_requestAutoPan = false;
if( id != -1 && cursor != -1 )
{
wxASSERT( cursor > wxCURSOR_NONE && cursor < wxCURSOR_MAX );
GetParent()->SetToolID( id, cursor, title );
}
}
void EDA_DRAW_PANEL::CallMouseCapture( wxDC* aDC, const wxPoint& aPosition, bool aErase )
{
wxCHECK_RET( aDC != NULL, wxT( "Invalid device context." ) );
wxCHECK_RET( m_mouseCaptureCallback != NULL, wxT( "Mouse capture callback not set." ) );
m_mouseCaptureCallback( this, aDC, aPosition, aErase );
}
void EDA_DRAW_PANEL::CallEndMouseCapture( wxDC* aDC )
{
wxCHECK_RET( aDC != NULL, wxT( "Invalid device context." ) );
// CallEndMouseCapture is sometimes called with m_endMouseCaptureCallback == NULL
// for instance after an ABORT in block paste.
if( m_endMouseCaptureCallback )
m_endMouseCaptureCallback( this, aDC );
}
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