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kicad-source/common/draw_panel.cpp
jean-pierre charras 7c99a242cf Remove 2 global variables: g_DrawBgColor and g_ShowPageLimits. 
They are now member of EDA_DRAW_FRAME.
This change could fix Bug #1330781 (Background color change in Eeschema affects background color in Pcbnew)
Show page limits has meaning only for the schematic editor,  the board editor and the page layout editor.
Draw background color selection exists only in eeschema and  page layout editor.
In pcbnew, only a black background is allowed.
A side effect is now the user should set the background color in schematic editor, and the library editor (2 different options).
The default is still the white color.
2014-06-20 13:13:04 +02:00

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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) 2007-2011 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 1992-2011 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 drawpanel.cpp
*/
#include <fctsys.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 <class_base_screen.h>
#include <draw_frame.h>
#include <kicad_device_context.h>
static const int CURSOR_SIZE = 12; ///< Cursor size in pixels
#define CLIP_BOX_PADDING 2
// keys to store options in config:
#define ENBL_ZOOM_NO_CENTER_KEY wxT( "ZoomNoCenter" )
#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.
/**
* Trace mask used to enable or disable the trace output of coordinates during drawing
* functions. The coordinate dumping can be turned on by setting the WXTRACE environment
* variable to "kicad_dump_coords". See the wxWidgets documentation on wxLogTrace for
* more information.
*/
#define KICAD_TRACE_COORDS wxT( "kicad_dump_coords" )
// Events used by EDA_DRAW_PANEL
BEGIN_EVENT_TABLE( EDA_DRAW_PANEL, wxScrolledWindow )
EVT_LEAVE_WINDOW( EDA_DRAW_PANEL::OnMouseLeaving )
EVT_MOUSEWHEEL( EDA_DRAW_PANEL::OnMouseWheel )
EVT_MOUSE_EVENTS( EDA_DRAW_PANEL::OnMouseEvent )
EVT_CHAR( EDA_DRAW_PANEL::OnKeyEvent )
EVT_CHAR_HOOK( EDA_DRAW_PANEL::OnCharHook )
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_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)*/
/***********************************************************************/
EDA_DRAW_PANEL::EDA_DRAW_PANEL( EDA_DRAW_FRAME* parent, int id,
const wxPoint& pos, const wxSize& size ) :
#if wxCHECK_VERSION( 2, 9, 5 )
wxScrolledWindow( parent, id, pos, size, wxBORDER | wxHSCROLL | wxVSCROLL )
#else
wxScrolledWindow( parent, id, pos, size, wxBORDER | wxHSCROLL | wxVSCROLL | wxALWAYS_SHOW_SB )
#endif
{
wxASSERT( parent );
#if wxCHECK_VERSION( 2, 9, 5 )
ShowScrollbars( wxSHOW_SB_ALWAYS, wxSHOW_SB_ALWAYS );
DisableKeyboardScrolling();
#endif
m_scrollIncrementX = std::min( size.x / 8, 10 );
m_scrollIncrementY = std::min( size.y / 8, 10 );
SetBackgroundColour( MakeColour( parent->GetDrawBgColor() ) );
#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_enableMiddleButtonPan = false;
m_enableZoomNoCenter = false;
m_panScrollbarLimits = false;
m_enableAutoPan = true;
m_ignoreMouseEvents = false;
m_ignoreNextLeftButtonRelease = false;
m_mouseCaptureCallback = NULL;
m_endMouseCaptureCallback = NULL;
wxConfigBase* cfg = Kiface().KifaceSettings();
if( cfg )
{
cfg->Read( ENBL_MIDDLE_BUTT_PAN_KEY, &m_enableMiddleButtonPan, false );
cfg->Read( ENBL_ZOOM_NO_CENTER_KEY, &m_enableZoomNoCenter, false );
cfg->Read( MIDDLE_BUTT_PAN_LIMITED_KEY, &m_panScrollbarLimits, 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;
}
EDA_DRAW_PANEL::~EDA_DRAW_PANEL()
{
wxConfigBase* cfg = Kiface().KifaceSettings();
if( cfg )
{
cfg->Write( ENBL_MIDDLE_BUTT_PAN_KEY, m_enableMiddleButtonPan );
cfg->Write( ENBL_ZOOM_NO_CENTER_KEY, m_enableZoomNoCenter );
cfg->Write( MIDDLE_BUTT_PAN_LIMITED_KEY, m_panScrollbarLimits );
cfg->Write( ENBL_AUTO_PAN_KEY, m_enableAutoPan );
}
}
EDA_DRAW_FRAME* EDA_DRAW_PANEL::GetParent() const
{
wxWindow* mom = wxScrolledWindow::GetParent();
return (EDA_DRAW_FRAME*) mom;
}
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, EDA_COLOR_T aColor )
{
if( m_cursorLevel != 0 || aDC == NULL || !m_showCrossHair )
return;
wxPoint cursor = GetParent()->GetCrossHairPosition();
GRSetDrawMode( aDC, GR_XOR );
if( GetParent()->m_cursorShape != 0 ) // Draws full screen crosshair.
{
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( KICAD_TRACE_COORDS,
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 )
{
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( KICAD_TRACE_COORDS,
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( KICAD_TRACE_COORDS,
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::OnScroll( wxScrollWinEvent& event )
{
int id = event.GetEventType();
int dir;
int x, y;
int ppux, ppuy;
int csizeX, csizeY;
int unitsX, unitsY;
int maxX, maxY;
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;
maxX = unitsX - csizeX;
maxY = unitsY - csizeY;
dir = event.GetOrientation(); // wxHORIZONTAL or wxVERTICAL
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 if( id == wxEVT_SCROLLWIN_THUMBTRACK )
{
if( dir == wxHORIZONTAL )
x = event.GetPosition();
else
y = event.GetPosition();
}
else
{
event.Skip();
return;
}
wxLogTrace( KICAD_TRACE_COORDS,
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( KICAD_TRACE_COORDS,
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 );
EDA_COLOR_T 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;
EDA_COLOR_T bgColor = GetParent()->GetDrawBgColor();
if( ( bgColor != WHITE ) && ( bgColor != BLACK ) )
bgColor = BLACK;
if( bgColor == WHITE )
{
g_XorMode = GR_NXOR;
g_GhostColor = BLACK;
}
else
{
g_XorMode = GR_XOR;
g_GhostColor = WHITE;
}
GRResetPenAndBrush( DC );
DC->SetBackground( bgColor == BLACK ? *wxBLACK_BRUSH : *wxWHITE_BRUSH );
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( KICAD_TRACE_COORDS,
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::DrawBackGround( wxDC* DC )
{
EDA_COLOR_T axis_color = BLUE;
GRSetDrawMode( DC, GR_COPY );
if( GetParent()->IsGridVisible() )
DrawGrid( DC );
// Draw axis
if( GetParent()->m_showAxis )
{
wxSize pageSize = GetParent()->GetPageSizeIU();
// Draw the Y axis
GRDashedLine( &m_ClipBox, DC, 0, -pageSize.y,
0, pageSize.y, 0, axis_color );
// Draw the X axis
GRDashedLine( &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 );
#if ( defined( __WXMAC__ ) || 1 )
// 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. Please note that this should
// always be enabled until the bitmap based solution below is fixed.
#ifndef __WXMAC__
GRSetColorPen( aDC, GetParent()->GetGridColor() );
#else
// On mac (Cocoa), a point isn't a pixel and being of size 1 don't survive to antialiasing
GRSetColorPen( aDC, GetParent()->GetGridColor(), aDC->DeviceToLogicalXRel(2) );
#endif
int xpos;
double right = ( double ) m_ClipBox.GetRight();
double bottom = ( double ) m_ClipBox.GetBottom();
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 ) );
}
}
#else
/* This is fast only if the Blit function is fast. Not true on all platforms.
*
* A first grid column is drawn in a temporary bitmap, and after is duplicated using
* the Blit function (copy from a screen area to an other screen area).
*/
wxMemoryDC tmpDC;
wxBitmap tmpBM( 1, aDC->LogicalToDeviceYRel( m_ClipBox.GetHeight() ) );
tmpDC.SelectObject( tmpBM );
tmpDC.SetLogicalFunction( wxCOPY );
tmpDC.SetBackground( wxBrush( GetBackgroundColour() ) );
tmpDC.Clear();
tmpDC.SetPen( MakeColour( GetParent()->GetGridColor() ) );
double usx, usy;
int lox, loy, dox, doy;
aDC->GetUserScale( &usx, &usy );
aDC->GetLogicalOrigin( &lox, &loy );
aDC->GetDeviceOrigin( &dox, &doy );
// Create a dummy DC for coordinate translation because the actual DC scale and origin
// must be reset in order to work correctly.
wxBitmap tmpBitmap( 1, 1 );
wxMemoryDC scaleDC( tmpBitmap );
scaleDC.SetUserScale( usx, usy );
scaleDC.SetLogicalOrigin( lox, loy );
scaleDC.SetDeviceOrigin( dox, doy );
double bottom = ( double ) m_ClipBox.GetBottom();
// Draw a column of grid points.
for( double y = (double) org.y; y <= bottom; y += gridSize.y )
{
tmpDC.DrawPoint( 0, scaleDC.LogicalToDeviceY( KiROUND( y ) ) );
}
// Reset the device context scale and origin and restore on exit.
EDA_BLIT_NORMALIZER blitNorm( aDC );
// Mask of everything but the grid points.
tmpDC.SelectObject( wxNullBitmap );
tmpBM.SetMask( new wxMask( tmpBM, GetBackgroundColour() ) );
tmpDC.SelectObject( tmpBM );
double right = m_ClipBox.GetRight();
// Blit the column for each row of the damaged region.
for( double x = (double) org.x; x <= right; x += gridSize.x )
{
aDC->Blit( scaleDC.LogicalToDeviceX( KiROUND( x ) ),
scaleDC.LogicalToDeviceY( m_ClipBox.GetY() ),
1, tmpBM.GetHeight(), &tmpDC, 0, 0, wxCOPY, true );
}
#endif
}
void EDA_DRAW_PANEL::DrawAuxiliaryAxis( wxDC* aDC, GR_DRAWMODE aDrawMode )
{
wxPoint origin = GetParent()->GetAuxOrigin();
if( origin == wxPoint( 0, 0 ) )
return;
EDA_COLOR_T color = DARKRED;
wxSize pageSize = GetParent()->GetPageSizeIU();
GRSetDrawMode( aDC, aDrawMode );
// Draw the Y axis
GRDashedLine( &m_ClipBox, aDC,
origin.x,
-pageSize.y,
origin.x,
pageSize.y,
0, color );
// Draw the X axis
GRDashedLine( &m_ClipBox, aDC,
-pageSize.x,
origin.y,
pageSize.x,
origin.y,
0, color );
}
void EDA_DRAW_PANEL::DrawGridAxis( wxDC* aDC, GR_DRAWMODE aDrawMode, const wxPoint& aGridOrigin )
{
if( !GetParent()->m_showGridAxis || ( !aGridOrigin.x && !aGridOrigin.y ) )
return;
EDA_COLOR_T color = GetParent()->GetGridColor();
wxSize pageSize = GetParent()->GetPageSizeIU();
GRSetDrawMode( aDC, aDrawMode );
// Draw the Y axis
GRDashedLine( &m_ClipBox, aDC,
aGridOrigin.x,
-pageSize.y,
aGridOrigin.x,
pageSize.y,
0, color );
// Draw the X axis
GRDashedLine( &m_ClipBox, aDC,
-pageSize.x,
aGridOrigin.y,
pageSize.x,
aGridOrigin.y,
0, color );
}
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 );
MoveCursorToCrossHair();
m_ignoreMouseEvents = false;
return true;
}
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
wxSize size = GetClientSize();
wxPoint cross_hair_pos = event.GetPosition();
cross_hair_pos.x = std::min( cross_hair_pos.x, size.x );
cross_hair_pos.y = std::min( cross_hair_pos.y, size.x );
cross_hair_pos.x = std::max( cross_hair_pos.x, 0 );
cross_hair_pos.y = std::max( cross_hair_pos.y, 0 );
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( KICAD_TRACE_COORDS,
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;
#if wxMAJOR_VERSION >= 2 && wxMINOR_VERSION >= 9
int axis = event.GetWheelAxis();
#else
const int axis = 0;
#endif
// This is a zoom in or out command
if( event.GetWheelRotation() > 0 )
{
if( event.ShiftDown() && !event.ControlDown() )
{
if( axis == 0 )
cmd.SetId( ID_PAN_UP );
else
cmd.SetId( ID_PAN_RIGHT );
}
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( event.GetWheelRotation() < 0 )
{
if( event.ShiftDown() && !event.ControlDown() )
{
if( axis == 0 )
cmd.SetId( ID_PAN_DOWN );
else
cmd.SetId( ID_PAN_LEFT );
}
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 );
}
GetEventHandler()->ProcessEvent( cmd );
event.Skip();
}
void EDA_DRAW_PANEL::OnMouseEvent( wxMouseEvent& event )
{
int localrealbutt = 0, 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.LeftIsDown() )
localrealbutt |= GR_M_LEFT_DOWN;
if( event.MiddleIsDown() )
localrealbutt |= GR_M_MIDDLE_DOWN;
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;
localrealbutt |= localbutt; // compensation default wxGTK
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 ) )
{
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 )
GetParent()->OnLeftClick( &DC, GetParent()->RefPos( true ) );
}
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_enableMiddleButtonPan )
{
if( m_panScrollbarLimits )
{
int ppux, ppuy;
GetScrollPixelsPerUnit( &ppux, &ppuy );
GetViewStart( &m_PanStartCenter.x, &m_PanStartCenter.y );
m_PanStartCenter.x *= ppux;
m_PanStartCenter.y *= ppuy;
}
else
m_PanStartCenter = GetParent()->GetScrollCenterPosition();
m_PanStartEventPosition = event.GetPosition();
INSTALL_UNBUFFERED_DC( dc, this );
CrossHairOff( &dc );
}
if( event.ButtonUp( wxMOUSE_BTN_MIDDLE ) && m_enableMiddleButtonPan )
{
INSTALL_UNBUFFERED_DC( dc, this );
CrossHairOn( &dc );
}
if( event.MiddleIsDown() && m_enableMiddleButtonPan )
{
wxPoint currentPosition = event.GetPosition();
if( m_panScrollbarLimits )
{
int x, y;
int tmpX, tmpY;
int ppux, ppuy;
int maxX, maxY;
int vsizeX, vsizeY;
int csizeX, csizeY;
GetViewStart( &tmpX, &tmpY );
GetScrollPixelsPerUnit( &ppux, &ppuy );
GetVirtualSize( &vsizeX, &vsizeY );
GetClientSize( &csizeX, &csizeY );
maxX = vsizeX - csizeX;
maxY = vsizeY - csizeY;
x = m_PanStartCenter.x + m_PanStartEventPosition.x - currentPosition.x;
y = m_PanStartCenter.y + m_PanStartEventPosition.y - currentPosition.y;
bool shouldMoveCursor = false;
if( x < 0 )
{
currentPosition.x += x;
x = 0;
shouldMoveCursor = true;
}
if( y < 0 )
{
currentPosition.y += y;
y = 0;
shouldMoveCursor = true;
}
if( x > maxX )
{
currentPosition.x += ( x - maxX );
x = maxX;
shouldMoveCursor = true;
}
if( y > maxY )
{
currentPosition.y += ( y - maxY );
y = maxY;
shouldMoveCursor = true;
}
if ( shouldMoveCursor )
WarpPointer( currentPosition.x, currentPosition.y );
Scroll( x/ppux, y/ppuy );
double scale = GetParent()->GetScreen()->GetScalingFactor();
wxPoint center = GetParent()->GetScrollCenterPosition();
center.x += KiROUND( (double) ( x - tmpX ) / scale ) / ppux;
center.y += KiROUND( (double) ( y - tmpY ) / scale ) / ppuy;
GetParent()->SetScrollCenterPosition( center );
Refresh();
Update();
}
else
{
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 );
}
}
if( event.ButtonUp( wxMOUSE_BTN_MIDDLE ) && !m_enableMiddleButtonPan &&
(screen->m_BlockLocate.GetState() == STATE_NO_BLOCK) )
{
// The middle button has been released, with no block command:
// We use it for a zoom center at cursor position command
wxCommandEvent cmd( wxEVT_COMMAND_MENU_SELECTED, ID_POPUP_ZOOM_CENTER );
cmd.SetEventObject( this );
GetEventHandler()->ProcessEvent( cmd );
}
// 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() || ( !m_enableMiddleButtonPan && event.MiddleDown() ) )
{
if( screen->m_BlockLocate.GetState() == STATE_BLOCK_MOVE )
{
m_requestAutoPan = false;
GetParent()->HandleBlockPlace( &DC );
m_ignoreNextLeftButtonRelease = true;
}
}
else if( ( m_canStartBlock >= 0 )
&& ( event.LeftIsDown() || ( !m_enableMiddleButtonPan && event.MiddleIsDown() ) )
&& !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;
if( !m_enableMiddleButtonPan && event.MiddleIsDown() )
cmd_type |= MOUSE_MIDDLE;
// 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
{
if( !GetParent()->HandleBlockBegin( &DC, cmd_type, m_CursorStartPos ) )
{
// 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 ) ||
( !m_enableMiddleButtonPan && event.ButtonUp( wxMOUSE_BTN_MIDDLE ) ) )
{
/* 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 );
}
}
#if 0
wxString msg_debug;
msg_debug.Printf( " block state %d, cmd %d",
screen->m_BlockLocate.GetState(),
screen->m_BlockLocate.GetCommand() );
GetParent()->PrintMsg( msg_debug );
#endif
lastPanel = this;
}
void EDA_DRAW_PANEL::OnCharHook( wxKeyEvent& event )
{
event.Skip();
}
void EDA_DRAW_PANEL::OnKeyEvent( wxKeyEvent& event )
{
int localkey;
wxPoint pos;
localkey = event.GetKeyCode();
switch( localkey )
{
default:
break;
case WXK_ESCAPE:
m_abortRequest = true;
if( IsMouseCaptured() )
EndMouseCapture();
else
EndMouseCapture( ID_NO_TOOL_SELECTED, m_defaultCursor, wxEmptyString );
break;
}
if( event.ControlDown() )
localkey |= GR_KB_CTRL;
if( event.AltDown() )
localkey |= GR_KB_ALT;
if( event.ShiftDown() && (event.GetKeyCode() > 256) )
localkey |= GR_KB_SHIFT;
/* 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( (localkey > GR_KB_CTRL) && (localkey <= GR_KB_CTRL+26) )
localkey += 'A' - 1;
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 );
GetParent()->GeneralControl( &DC, pos, localkey );
}
void EDA_DRAW_PANEL::OnPan( wxCommandEvent& event )
{
int x, y;
int ppux, ppuy;
int unitsX, unitsY;
int maxX, maxY;
GetViewStart( &x, &y );
GetScrollPixelsPerUnit( &ppux, &ppuy );
GetVirtualSize( &unitsX, &unitsY );
maxX = unitsX;
maxY = unitsY;
unitsX /= ppux;
unitsY /= ppuy;
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() );
}
if( x < 0 )
x = 0;
if( y < 0 )
y = 0;
if( x > maxX )
x = maxX;
if( y > maxY )
y = maxY;
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." ) );
wxCHECK_RET( m_endMouseCaptureCallback != NULL, wxT( "End mouse capture callback not set." ) );
m_endMouseCaptureCallback( this, aDC );
}
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