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kicad/eeschema/symbdraw.cpp

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/*********************************************************************/
/* EESchema - symbdraw.cpp */
/* Create, move .. graphic shapes used to build and draw a component */
/* (lines, arcs .. */
/*********************************************************************/
#include "fctsys.h"
#include "gr_basic.h"
#include "appl_wxstruct.h"
#include "common.h"
#include "class_drawpanel.h"
#include "confirm.h"
#include "eeschema_id.h"
#include "program.h"
#include "general.h"
#include "trigo.h"
#include "protos.h"
#include "libeditfrm.h"
#include "class_libentry.h"
#include "dialog_lib_edit_draw_item.h"
#include <boost/foreach.hpp>
#define EraseItem( item ) item->Draw( Panel, DC, wxPoint( 0,\
0 ), -1, g_XorMode, NULL,\
DefaultTransformMatrix )
static void SymbolDisplayDraw( WinEDA_DrawPanel* panel, wxDC* DC, bool erase );
static void ComputeArc( LIB_ARC* DrawItem, wxPoint ArcCentre );
static void ComputeArcRadiusAngles( LIB_ARC* arc );
static wxPoint ComputeCircumCenter( wxPoint A, wxPoint B, wxPoint C );
static void RedrawWhileMovingCursor( WinEDA_DrawPanel* panel,
wxDC* DC,
bool erase );
static wxPoint InitPosition, StartCursor, ItemPreviousPos;
typedef enum {
START_POINT, END_POINT, OUTLINE
} SelectedPoint;
// Attributes of the arc in edit
static struct
{
wxPoint startPoint, endPoint; //!< Start, end coordinates
int stateDrawArc; //!< The actual drawing state
double distanceCenter; //!< Distance from arc center to middle of start-/end-point
SelectedPoint selectedPoint; //!< The selected point while modifying
int direction; //!< Determines the side of the center point relative to start/end point
} arcState;
// Structure for saving attributes before modifying graphics objects
static struct
{
wxPoint startPoint;
wxPoint endPoint;
wxPoint centerPoint;
int radius;
} savedAttributes;
/*
* Show the dialog box for editing a graphical item properties
*/
void WinEDA_LibeditFrame::EditGraphicSymbol( wxDC* DC, LIB_DRAW_ITEM* DrawItem )
{
if( DrawItem == NULL )
return;
LIB_COMPONENT* component = DrawItem->GetParent();
DIALOG_LIB_EDIT_DRAW_ITEM dialog( this, DrawItem->m_typeName );
dialog.SetWidthUnits( ReturnUnitSymbol( g_UnitMetric ) );
wxString val = ReturnStringFromValue( g_UnitMetric, m_drawLineWidth,
m_InternalUnits );
dialog.SetWidth( val );
dialog.SetApplyToAllUnits( !m_drawSpecificUnit );
dialog.EnableApplyToAllUnits( component && component->GetPartCount() > 1 );
dialog.SetApplyToAllConversions( !m_drawSpecificConvert );
dialog.EnableApplyToAllConversions( component && component->HasConversion() );
dialog.SetFillStyle( m_drawFillStyle );
dialog.EnableFillStyle( DrawItem->IsFillable() );
if( dialog.ShowModal() == wxID_CANCEL )
return;
val = dialog.GetWidth();
m_drawLineWidth = ReturnValueFromString( g_UnitMetric, val,
m_InternalUnits );
m_drawSpecificConvert = !dialog.GetApplyToAllConversions();
m_drawSpecificUnit = !dialog.GetApplyToAllUnits();
if( DrawItem->IsFillable() )
m_drawFillStyle = (FILL_T) dialog.GetFillStyle();
// Save copy for undo is done before place.
if( !( DrawItem->m_Flags & IS_NEW ) )
SaveCopyInUndoList( DrawItem->GetParent() );
if( m_drawSpecificUnit )
DrawItem->m_Unit = GetUnit();
else
DrawItem->m_Unit = 0;
if( m_drawSpecificConvert )
DrawItem->m_Convert = GetConvert();
else
DrawItem->m_Convert = 0;
if( DrawItem->IsFillable() )
DrawItem->m_Fill = m_drawFillStyle;
DrawItem->SetWidth( m_drawLineWidth );
if( component )
component->GetDrawItemList().sort();
GetScreen()->SetModify();
DrawItem->DisplayInfo( this );
DrawPanel->Refresh();
}
static void AbortSymbolTraceOn( WinEDA_DrawPanel* Panel, wxDC* DC )
{
LIB_DRAW_ITEM* item;
WinEDA_LibeditFrame* parent = (WinEDA_LibeditFrame*) Panel->GetParent();
item = parent->GetDrawItem();
if( item == NULL )
return;
arcState.stateDrawArc = 0;
Panel->ManageCurseur = NULL;
Panel->ForceCloseManageCurseur = NULL;
if( item->m_Flags & IS_NEW )
{
if( DC )
{
if( item->Type() == COMPONENT_ARC_DRAW_TYPE )
Panel->GetParent()->DrawPanel->Refresh();
else
item->Draw( Panel, DC, wxPoint( 0, 0 ), -1, g_XorMode, NULL,
DefaultTransformMatrix );
}
SAFE_DELETE( item );
parent->SetDrawItem( NULL );
}
else
{
// Restore old attributes, when the item was modified
if( item->m_Flags == IS_RESIZED )
{
EraseItem( item );
switch( item->Type() )
{
case COMPONENT_CIRCLE_DRAW_TYPE:
( (LIB_CIRCLE*) item )->m_Radius = savedAttributes.radius;
break;
case COMPONENT_RECT_DRAW_TYPE:
( (LIB_RECTANGLE*) item )->m_Pos = savedAttributes.startPoint;
( (LIB_RECTANGLE*) item )->m_End = savedAttributes.endPoint;
break;
case COMPONENT_POLYLINE_DRAW_TYPE:
{
wxPoint point = savedAttributes.startPoint;
int index = ( (LIB_POLYLINE*) item )->m_ModifyIndex;
( ( (LIB_POLYLINE*) item )->m_PolyPoints )[index] = point;
}
break;
case COMPONENT_ARC_DRAW_TYPE:
( (LIB_ARC*) item )->m_ArcStart = savedAttributes.startPoint;
( (LIB_ARC*) item )->m_ArcEnd = savedAttributes.endPoint;
( (LIB_ARC*) item )->m_Pos = savedAttributes.centerPoint;
ComputeArcRadiusAngles( (LIB_ARC*) item );
break;
default:
break;
}
item->m_Flags = 0;
}
else
{
wxPoint curpos = Panel->GetScreen()->m_Curseur;
Panel->GetScreen()->m_Curseur = StartCursor;
RedrawWhileMovingCursor( Panel, DC, TRUE );
Panel->GetScreen()->m_Curseur = curpos;
}
item->Draw( Panel, DC, wxPoint( 0, 0 ), -1, GR_DEFAULT_DRAWMODE, NULL,
DefaultTransformMatrix );
item->m_Flags = 0;
}
}
LIB_DRAW_ITEM* WinEDA_LibeditFrame::CreateGraphicItem( LIB_COMPONENT* LibEntry,
wxDC* DC )
{
DrawPanel->ManageCurseur = SymbolDisplayDraw;
DrawPanel->ForceCloseManageCurseur = AbortSymbolTraceOn;
switch( m_ID_current_state )
{
case ID_LIBEDIT_BODY_ARC_BUTT:
{
LIB_ARC* Arc = new LIB_ARC( LibEntry );
m_drawItem = Arc;
arcState.startPoint.x = arcState.endPoint.x = GetScreen()->m_Curseur.x;
arcState.startPoint.y = arcState.endPoint.y = -( GetScreen()->m_Curseur.y );
arcState.stateDrawArc = 1;
Arc->m_Fill = m_drawFillStyle;
Arc->m_Width = m_drawLineWidth;
}
break;
case ID_LIBEDIT_BODY_CIRCLE_BUTT:
{
LIB_CIRCLE* Circle = new LIB_CIRCLE( LibEntry );
m_drawItem = Circle;
Circle->m_Pos = GetScreen()->m_Curseur;
NEGATE( Circle->m_Pos.y );
Circle->m_Fill = m_drawFillStyle;
Circle->m_Width = m_drawLineWidth;
}
break;
case ID_LIBEDIT_BODY_RECT_BUTT:
{
LIB_RECTANGLE* Square = new LIB_RECTANGLE( LibEntry );
m_drawItem = Square;
Square->m_Pos = GetScreen()->m_Curseur;
NEGATE( Square->m_Pos.y );
Square->m_End = Square->m_Pos;
Square->m_Fill = m_drawFillStyle;
Square->m_Width = m_drawLineWidth;
}
break;
case ID_LIBEDIT_BODY_LINE_BUTT:
{
LIB_POLYLINE* polyline = new LIB_POLYLINE( LibEntry );
m_drawItem = polyline;
wxPoint point = GetScreen()->m_Curseur;
NEGATE( point.y );
polyline->AddPoint( point ); // Start point of the current segment
polyline->AddPoint( point ); // End point of the current segment
polyline->m_Fill = m_drawFillStyle;
polyline->m_Width = m_drawLineWidth;
}
break;
case COMPONENT_LINE_DRAW_TYPE:
{
LIB_SEGMENT* Segment = new LIB_SEGMENT( LibEntry );
m_drawItem = Segment;
Segment->m_Pos = GetScreen()->m_Curseur;
NEGATE( Segment->m_Pos.y );
Segment->m_End = Segment->m_Pos;
Segment->m_Width = m_drawLineWidth;
}
break;
case ID_LIBEDIT_BODY_TEXT_BUTT:
{
LIB_TEXT* Text = new LIB_TEXT( LibEntry );
m_drawItem = Text;
Text->m_Size.x = Text->m_Size.y = m_textSize;
Text->m_Orient = m_textOrientation;
Text->m_Pos = GetScreen()->m_Curseur;
NEGATE( Text->m_Pos.y );
// Enter the graphic text info
DrawPanel->m_IgnoreMouseEvents = true;
EditSymbolText( NULL, Text );
DrawPanel->MouseToCursorSchema();
DrawPanel->m_IgnoreMouseEvents = false;
if( Text->m_Text.IsEmpty() )
{
SAFE_DELETE( Text );
m_drawItem = NULL;
DrawPanel->ManageCurseur = NULL;
DrawPanel->ForceCloseManageCurseur = NULL;
}
else
{
StartMoveDrawSymbol( DC );
Text->Draw( DrawPanel, DC, wxPoint( 0, 0 ), -1, g_XorMode, NULL,
DefaultTransformMatrix );
}
}
break;
default:
DisplayError( this, wxT( "WinEDA_LibeditFrame::CreateGraphicItem() \
error" ) );
return NULL;
}
if( m_drawItem )
{
m_drawItem->m_Flags |= IS_NEW;
if( m_drawSpecificUnit )
m_drawItem->m_Unit = m_unit;
if( m_drawSpecificConvert )
m_drawItem->m_Convert = m_convert;
}
DrawPanel->MouseToCursorSchema();
DrawPanel->m_IgnoreMouseEvents = FALSE;
return m_drawItem;
}
/* Create new library component graphic object.
*/
void WinEDA_LibeditFrame::GraphicItemBeginDraw( wxDC* DC )
{
if( m_drawItem == NULL )
return;
switch( m_drawItem->Type() )
{
case COMPONENT_ARC_DRAW_TYPE:
if( arcState.stateDrawArc == 1 )
{
SymbolDisplayDraw( DrawPanel, DC, FALSE );
arcState.stateDrawArc = 2;
SymbolDisplayDraw( DrawPanel, DC, FALSE );
break;
}
if( arcState.stateDrawArc > 1 )
{
EndDrawGraphicItem( DC );
return;
}
break;
case COMPONENT_CIRCLE_DRAW_TYPE:
case COMPONENT_RECT_DRAW_TYPE:
case COMPONENT_GRAPHIC_TEXT_DRAW_TYPE:
EndDrawGraphicItem( DC );
return;
case COMPONENT_POLYLINE_DRAW_TYPE:
{
wxPoint pos = GetScreen()->m_Curseur;
NEGATE( pos.y );
( (LIB_POLYLINE*) m_drawItem )->AddPoint( pos );
}
break;
case COMPONENT_LINE_DRAW_TYPE:
break;
default:
;
}
}
/*
* Redraw the graphic shape while moving
*/
static void RedrawWhileMovingCursor( WinEDA_DrawPanel* panel,
wxDC* DC,
bool erase )
{
LIB_DRAW_ITEM* item;
item = ( (WinEDA_LibeditFrame*) panel->GetParent() )->GetDrawItem();
if( item == NULL )
return;
BASE_SCREEN* Screen = panel->GetScreen();
wxPoint pos;
/* Erase shape in the old position*/
if( erase )
{
pos = ItemPreviousPos - StartCursor;
item->Draw( panel, DC, pos, -1, g_XorMode, NULL,
DefaultTransformMatrix );
}
/* Redraw moved shape */
pos = Screen->m_Curseur - StartCursor;
item->Draw( panel, DC, pos, -1, g_XorMode, NULL, DefaultTransformMatrix );
ItemPreviousPos = Screen->m_Curseur;
}
void WinEDA_LibeditFrame::StartMoveDrawSymbol( wxDC* DC )
{
if( m_drawItem == NULL )
return;
SetCursor( wxCURSOR_HAND );
m_drawItem->m_Flags |= IS_MOVED;
StartCursor = GetScreen()->m_Curseur;
InitPosition = m_drawItem->GetPosition();
ItemPreviousPos = GetScreen()->m_Curseur;
DrawPanel->ManageCurseur = RedrawWhileMovingCursor;
DrawPanel->ForceCloseManageCurseur = AbortSymbolTraceOn;
DrawPanel->ManageCurseur( DrawPanel, DC, TRUE );
}
// @brief Modify a graphic symbol (drag edges etc.)
void WinEDA_LibeditFrame::StartModifyDrawSymbol( wxDC* DC )
{
if( m_drawItem == NULL )
return;
// TODO Check if this is really required
StartCursor = GetScreen()->m_Curseur;
InitPosition = m_drawItem->GetPosition();
ItemPreviousPos = GetScreen()->m_Curseur;
switch( m_drawItem->Type() )
{
case COMPONENT_ARC_DRAW_TYPE:
{
wxPoint cursor = StartCursor;
cursor.y = -cursor.y;
// The arc center point has to be rotated with while adjusting the
// start or end point, determine the side of this point and the distance
// from the start / end point
wxPoint startPoint = ( (LIB_ARC*) m_drawItem )->m_ArcStart;
wxPoint endPoint = ( (LIB_ARC*) m_drawItem )->m_ArcEnd;
wxPoint centerPoint = ( (LIB_ARC*) m_drawItem )->m_Pos;
wxPoint middlePoint = wxPoint( (startPoint.x + endPoint.x) / 2,
(startPoint.y + endPoint.y) / 2 );
wxPoint centerVector = centerPoint - middlePoint;
wxPoint startEndVector = TwoPointVector( startPoint, endPoint );
arcState.distanceCenter = EuclideanNorm( centerVector );
// Determine on which side is the center point
arcState.direction = CrossProduct( startEndVector, centerVector ) ? 1 : -1;
arcState.startPoint = startPoint;
arcState.endPoint = endPoint;
// Save the old values
savedAttributes.startPoint = startPoint;
savedAttributes.endPoint = endPoint;
savedAttributes.centerPoint = centerPoint;
// Drag either the start, end point or the outline
if( HitTestPoints( startPoint, cursor, MINIMUM_SELECTION_DISTANCE ) )
{
arcState.selectedPoint = START_POINT;
}
else if( HitTestPoints( endPoint, cursor, MINIMUM_SELECTION_DISTANCE ) )
{
arcState.selectedPoint = END_POINT;
}
else
arcState.selectedPoint = OUTLINE;
arcState.stateDrawArc = 0;
m_drawItem->m_Flags |= IS_RESIZED;
}
break;
case COMPONENT_RECT_DRAW_TYPE:
{
// Save old attributes
savedAttributes.startPoint = ( (LIB_RECTANGLE*) m_drawItem )->m_Pos;
savedAttributes.endPoint = ( (LIB_RECTANGLE*) m_drawItem )->m_End;
// Resize rectangle
m_drawItem->m_Flags |= IS_RESIZED;
// If the cursor is not on the rectangle edge point,
// lock the width or height
wxPoint rectEnd = ( (LIB_RECTANGLE*) m_drawItem )->m_End;
wxPoint rectStart = ( (LIB_RECTANGLE*) m_drawItem )->m_Pos;
wxPoint cursor = StartCursor;
cursor.y = -cursor.y;
( (LIB_RECTANGLE*) m_drawItem )->m_isStartPointSelected =
abs( rectStart.x - cursor.x ) < MINIMUM_SELECTION_DISTANCE
|| abs( rectStart.y - cursor.y ) < MINIMUM_SELECTION_DISTANCE;
if( ( (LIB_RECTANGLE*) m_drawItem )->m_isStartPointSelected )
{
( (LIB_RECTANGLE*) m_drawItem )->m_isWidthLocked =
abs( rectStart.x - cursor.x ) >= MINIMUM_SELECTION_DISTANCE;
( (LIB_RECTANGLE*) m_drawItem )->m_isHeightLocked =
abs( rectStart.y - cursor.y ) >= MINIMUM_SELECTION_DISTANCE;
}
else
{
( (LIB_RECTANGLE*) m_drawItem )->m_isWidthLocked =
abs( rectEnd.x - cursor.x ) >= MINIMUM_SELECTION_DISTANCE;
( (LIB_RECTANGLE*) m_drawItem )->m_isHeightLocked =
abs( rectEnd.y - cursor.y ) >= MINIMUM_SELECTION_DISTANCE;
}
}
break;
case COMPONENT_CIRCLE_DRAW_TYPE:
savedAttributes.radius = ( (LIB_CIRCLE*) m_drawItem )->m_Radius;
m_drawItem->m_Flags |= IS_RESIZED;
break;
case COMPONENT_POLYLINE_DRAW_TYPE:
{
// Drag one edge point of the polyline
m_drawItem->m_Flags |= IS_RESIZED;
// Find the nearest edge point to be dragged
wxPoint cursor = StartCursor;
wxPoint startPoint = ( ( (LIB_POLYLINE*) m_drawItem )->m_PolyPoints )[0];
cursor.y = NEGATE( cursor.y );
// Begin with the first list point as nearest point
int index = 0;
( (LIB_POLYLINE*) m_drawItem )->m_ModifyIndex = 0;
savedAttributes.startPoint = startPoint;
// First distance is the current minimum distance
int distanceMin = (cursor - startPoint).x * (cursor - startPoint).x
+ (cursor - startPoint).y * (cursor - startPoint).y;
// Find the right index of the point to be dragged
BOOST_FOREACH( wxPoint point, ( ( (LIB_POLYLINE*) m_drawItem )->m_PolyPoints ) ) {
int distancePoint = (cursor - point).x * (cursor - point).x +
(cursor - point).y * (cursor - point).y;
if( distancePoint < distanceMin )
{
// Save point
savedAttributes.startPoint = point;
( (LIB_POLYLINE*) m_drawItem )->m_ModifyIndex = index;
distanceMin = distancePoint;
}
index++;
}
}
break;
default:
break;
}
DrawPanel->ManageCurseur = SymbolDisplayDraw;
DrawPanel->ForceCloseManageCurseur = AbortSymbolTraceOn;
DrawPanel->ManageCurseur( DrawPanel, DC, TRUE );
}
//! @brief Manage mouse events when creating new graphic object or modifying an graphic object.
static void SymbolDisplayDraw( WinEDA_DrawPanel* panel, wxDC* DC, bool erase )
{
int dx, dy;
int DrawMode = g_XorMode;
BASE_SCREEN* Screen = panel->GetScreen();
wxPoint currentCursorPosition = Screen->m_Curseur;
FILL_T fillStyle = NO_FILL;
LIB_DRAW_ITEM* item;
item = ( (WinEDA_LibeditFrame*) panel->GetParent() )->GetDrawItem();
if( item == NULL )
return;
fillStyle = ( (WinEDA_LibeditFrame*) panel->GetParent() )->GetFillStyle();
NEGATE( currentCursorPosition.y );
GRSetDrawMode( DC, DrawMode );
if( erase )
{
if( arcState.stateDrawArc == 1 )
{
int Color = ReturnLayerColor( LAYER_DEVICE );
GRLine( &panel->m_ClipBox, DC, arcState.startPoint.x, -arcState.startPoint.y,
arcState.endPoint.x, -arcState.endPoint.y, 0, Color );
}
else
{
item->Draw( panel, DC, wxPoint( 0, 0 ), -1, DrawMode, NULL,
DefaultTransformMatrix );
if( item->Type() == COMPONENT_ARC_DRAW_TYPE && item->m_Flags != IS_RESIZED )
{
int Color = ReturnLayerColor( LAYER_DEVICE );
GRDashedLine( &panel->m_ClipBox, DC, arcState.startPoint.x, -arcState.startPoint.y,
( (LIB_ARC*) item )->m_Pos.x,
-( (LIB_ARC*) item )->m_Pos.y,
0, Color );
GRDashedLine( &panel->m_ClipBox, DC, arcState.endPoint.x, -arcState.endPoint.y,
( (LIB_ARC*) item )->m_Pos.x,
-( (LIB_ARC*) item )->m_Pos.y,
0, Color );
}
}
}
switch( item->Type() )
{
case COMPONENT_ARC_DRAW_TYPE:
if( item->m_Flags == IS_RESIZED )
{
wxPoint newCenterPoint;
// Choose the point of the arc to be adjusted
if( arcState.selectedPoint == START_POINT )
{
arcState.startPoint = currentCursorPosition;
arcState.endPoint = ( (LIB_ARC*) item )->m_ArcEnd;
}
else if( arcState.selectedPoint == END_POINT )
{
arcState.endPoint = currentCursorPosition;
arcState.startPoint = ( (LIB_ARC*) item )->m_ArcStart;
}
else
{
// Use the cursor for adjusting the arc curvature
arcState.startPoint = ( (LIB_ARC*) item )->m_ArcStart;
arcState.endPoint = ( (LIB_ARC*) item )->m_ArcEnd;
wxPoint middlePoint = wxPoint( (arcState.startPoint.x + arcState.endPoint.x) / 2,
(arcState.startPoint.y + arcState.endPoint.y) / 2 );
// If the distance is too small, use the old center point
// else the new center point is calculated over the three points start/end/cursor
if( DistanceLinePoint( arcState.startPoint, arcState.endPoint,
currentCursorPosition )
> MINIMUM_SELECTION_DISTANCE )
{
newCenterPoint = ComputeCircumCenter( arcState.startPoint,
currentCursorPosition, arcState.endPoint );
}
else
{
newCenterPoint = ( (LIB_ARC*) item )->m_Pos;
}
// Determine if the arc angle is larger than 180 degrees -> this happens if both
// points (cursor position, center point) lie on the same side of the vector start-end
int crossA = CrossProduct( TwoPointVector( arcState.startPoint, arcState.endPoint ),
TwoPointVector( arcState.endPoint,
currentCursorPosition ) );
int crossB = CrossProduct( TwoPointVector( arcState.startPoint, arcState.endPoint ),
TwoPointVector( arcState.endPoint, newCenterPoint ) );
bool isLarger180degrees = (crossA < 0 && crossB < 0) || (crossA >=0 && crossB >=0);
if( isLarger180degrees )
newCenterPoint = ( (LIB_ARC*) item )->m_Pos;
}
if( arcState.selectedPoint == START_POINT || arcState.selectedPoint == END_POINT )
{
// Compute the new center point when the start/end points are modified
wxPoint middlePoint = wxPoint( (arcState.startPoint.x + arcState.endPoint.x) / 2,
(arcState.startPoint.y + arcState.endPoint.y) / 2 );
wxPoint startEndVector = TwoPointVector( arcState.startPoint, arcState.endPoint );
wxPoint perpendicularVector = wxPoint( -startEndVector.y, startEndVector.x );
double lengthPerpendicularVector = EuclideanNorm( perpendicularVector );
// prevent too large values, division / 0
if( lengthPerpendicularVector < 1e-1 )
lengthPerpendicularVector = 1e-1;
perpendicularVector.x = (int) ( (double) perpendicularVector.x *
arcState.distanceCenter /
lengthPerpendicularVector ) * arcState.direction;
perpendicularVector.y = (int) ( (double) perpendicularVector.y *
arcState.distanceCenter /
lengthPerpendicularVector ) * arcState.direction;
newCenterPoint = middlePoint + perpendicularVector;
( (LIB_ARC*) item )->m_ArcStart = arcState.startPoint;
( (LIB_ARC*) item )->m_ArcEnd = arcState.endPoint;
}
( (LIB_ARC*) item )->m_Pos = newCenterPoint;
ComputeArcRadiusAngles( (LIB_ARC*) item );
}
else
{
if( arcState.stateDrawArc == 1 )
{
arcState.endPoint.x = currentCursorPosition.x;
arcState.endPoint.y = currentCursorPosition.y;
}
if( arcState.stateDrawArc == 2 )
{
ComputeArc( (LIB_ARC*) item, Screen->m_Curseur );
}
item->m_Fill = fillStyle;
}
break;
case COMPONENT_CIRCLE_DRAW_TYPE:
dx = ( (LIB_CIRCLE*) item )->m_Pos.x - currentCursorPosition.x;
dy = ( (LIB_CIRCLE*) item )->m_Pos.y - currentCursorPosition.y;
( (LIB_CIRCLE*) item )->m_Radius =
(int) sqrt( ( (double) dx * dx ) + ( (double) dy * dy ) );
item->m_Fill = fillStyle;
break;
case COMPONENT_RECT_DRAW_TYPE:
if( ( (LIB_RECTANGLE*) item )->m_isHeightLocked )
{
if( ( (LIB_RECTANGLE*) item )->m_isStartPointSelected )
{
( (LIB_RECTANGLE*) item )->m_Pos.x = currentCursorPosition.x;
}
else
{
( (LIB_RECTANGLE*) item )->m_End.x = currentCursorPosition.x;
}
}
else if( ( (LIB_RECTANGLE*) item )->m_isWidthLocked )
{
if( ( (LIB_RECTANGLE*) item )->m_isStartPointSelected )
{
( (LIB_RECTANGLE*) item )->m_Pos.y = currentCursorPosition.y;
}
else
{
( (LIB_RECTANGLE*) item )->m_End.y = currentCursorPosition.y;
}
}
else
{
if( ( (LIB_RECTANGLE*) item )->m_isStartPointSelected )
{
( (LIB_RECTANGLE*) item )->m_Pos = currentCursorPosition;
}
else
{
( (LIB_RECTANGLE*) item )->m_End = currentCursorPosition;
}
}
item->m_Fill = fillStyle;
break;
case COMPONENT_POLYLINE_DRAW_TYPE:
{
unsigned idx;
if( item->m_Flags == IS_RESIZED )
idx = ( (LIB_POLYLINE*) item )->m_ModifyIndex;
else
idx = ( (LIB_POLYLINE*) item )->GetCornerCount() - 1;
( (LIB_POLYLINE*) item )->m_PolyPoints[idx] = currentCursorPosition;
item->m_Fill = fillStyle;
}
break;
case COMPONENT_LINE_DRAW_TYPE:
( (LIB_SEGMENT*) item )->m_End = currentCursorPosition;
break;
case COMPONENT_GRAPHIC_TEXT_DRAW_TYPE:
break;
default:
;
}
if( arcState.stateDrawArc == 1 )
{
int Color = ReturnLayerColor( LAYER_DEVICE );
GRLine( &panel->m_ClipBox,
DC,
arcState.startPoint.x,
-arcState.startPoint.y,
arcState.endPoint.x,
-arcState.endPoint.y,
0,
Color );
}
else
{
item->Draw( panel, DC, wxPoint( 0, 0 ), -1, DrawMode, NULL,
DefaultTransformMatrix );
if( item->Type() == COMPONENT_ARC_DRAW_TYPE && item->m_Flags != IS_RESIZED )
{
int Color = ReturnLayerColor( LAYER_DEVICE );
GRDashedLine( &panel->m_ClipBox, DC, arcState.startPoint.x, -arcState.startPoint.y,
( (LIB_ARC*) item )->m_Pos.x,
-( (LIB_ARC*) item )->m_Pos.y,
0, Color );
GRDashedLine( &panel->m_ClipBox, DC, arcState.endPoint.x, -arcState.endPoint.y,
( (LIB_ARC*) item )->m_Pos.x,
-( (LIB_ARC*) item )->m_Pos.y,
0, Color );
}
}
}
/*
* Place the new graphic object in the list of component drawing objects.
*/
void WinEDA_LibeditFrame::EndDrawGraphicItem( wxDC* DC )
{
if( m_component == NULL || m_drawItem == NULL )
return;
if( m_drawItem->Type() == COMPONENT_ARC_DRAW_TYPE )
{
if( arcState.stateDrawArc == 1 ) /* Trace arc under way must be completed. */
{
DisplayError( this, wxT( "Arc in progress.." ) );
return;
}
else
{
if( ( m_drawItem->m_Flags & IS_MOVED ) == 0 )
SymbolDisplayDraw( DrawPanel, DC, FALSE );
}
}
arcState.stateDrawArc = 0;
if( m_drawItem->m_Flags & IS_NEW )
{
SaveCopyInUndoList( m_component );
m_component->AddDrawItem( m_drawItem );
switch( m_drawItem->Type() )
{
case COMPONENT_ARC_DRAW_TYPE:
( (LIB_ARC*) m_drawItem )->m_Fill = m_drawFillStyle;
break;
case COMPONENT_CIRCLE_DRAW_TYPE:
( (LIB_CIRCLE*) m_drawItem )->m_Fill = m_drawFillStyle;
break;
case COMPONENT_RECT_DRAW_TYPE:
( (LIB_RECTANGLE*) m_drawItem )->m_Fill = m_drawFillStyle;
( (LIB_RECTANGLE*) m_drawItem )->m_isHeightLocked = false;
( (LIB_RECTANGLE*) m_drawItem )->m_isWidthLocked = false;
break;
case COMPONENT_POLYLINE_DRAW_TYPE:
( (LIB_POLYLINE*) m_drawItem )->m_Fill = m_drawFillStyle;
break;
case COMPONENT_PIN_DRAW_TYPE:
case COMPONENT_LINE_DRAW_TYPE:
case COMPONENT_GRAPHIC_TEXT_DRAW_TYPE:
break;
default:
;
}
}
if( m_ID_current_state )
SetCursor( wxCURSOR_PENCIL );
else
SetCursor( wxCURSOR_ARROW );
if( m_drawItem->m_Flags & IS_MOVED )
{
wxPoint pos;
pos.x = GetScreen()->m_Curseur.x + InitPosition.x - StartCursor.x,
pos.y = GetScreen()->m_Curseur.y - InitPosition.y - StartCursor.y;
NEGATE( pos.y );
m_drawItem->Move( pos );
}
m_component->Draw( DrawPanel, DC, wxPoint( 0, 0 ), m_unit, m_convert,
GR_DEFAULT_DRAWMODE );
m_drawItem->m_Flags = 0;
m_drawItem = NULL;
GetScreen()->SetModify();
DrawPanel->ManageCurseur = NULL;
DrawPanel->ForceCloseManageCurseur = NULL;
}
//! @brief Compute the missing attributes (angles, radius),
// when the three points (start, end, center) given
//! @param arc Arc to be modified
static void ComputeArcRadiusAngles( LIB_ARC* arc )
{
wxPoint centerStartVector = TwoPointVector( arc->m_Pos, arc->m_ArcStart );
wxPoint centerEndVector = TwoPointVector( arc->m_Pos, arc->m_ArcEnd );
arc->m_Radius = EuclideanNorm( centerStartVector );
arc->m_t1 = (int) ( atan2( (double) centerStartVector.y,
(double) centerStartVector.x ) * 1800 / M_PI );
arc->m_t2 = (int) ( atan2( (double) centerEndVector.y,
(double) centerEndVector.x ) * 1800 / M_PI );
NORMALIZE_ANGLE( arc->m_t1 );
NORMALIZE_ANGLE( arc->m_t2 ); // angles = 0 .. 3600
// Restrict angle to less than 180 to avoid PBS display mirror
// Trace because it is assumed that the arc is less than 180 deg to find
// orientation after rotate or mirror.
if( (arc->m_t2 - arc->m_t1) > 1800 )
arc->m_t2 -= 3600;
else if( (arc->m_t2 - arc->m_t1) <= -1800 )
arc->m_t2 += 3600;
wxString msg;
int angle = arc->m_t2 - arc->m_t1;
msg.Printf( _( "Arc %.1f deg" ), (float) angle / 10 );
WinEDA_SchematicFrame* frame =
(WinEDA_SchematicFrame*) wxGetApp().GetTopWindow();
frame->m_LibeditFrame->PrintMsg( msg );
while( (arc->m_t2 - arc->m_t1) >= 1800 )
{
arc->m_t2--;
arc->m_t1++;
}
while( (arc->m_t1 - arc->m_t2) >= 1800 )
{
arc->m_t2++;
arc->m_t1--;
}
NORMALIZE_ANGLE( arc->m_t1 );
}
/*
* Routine for adjusting the parameters of the arc currently being drawn.
* Calculates the center, radius, angles for the arc current
* Passes through the points arcState.startPoint.x, arcState.endPoint.x Y and Y with the nearest center
* of the mouse position.
* Note: The center is obviously not on the grid
*/
static void ComputeArc( LIB_ARC* DrawItem, wxPoint ArcCentre )
{
int dx, dy;
int cX, cY;
int angle;
cX = ArcCentre.x;
cY = ArcCentre.y;
cY = -cY; /* Attention to the orientation of the axis Y. */
/* Calculating cX and cY for the arc passes through arcState.startPoint.x, arcState.endPoint.x,
* X and Y */
dx = arcState.endPoint.x - arcState.startPoint.x;
dy = arcState.endPoint.y - arcState.startPoint.y;
cX -= arcState.startPoint.x;
cY -= arcState.startPoint.y;
angle = (int) ( atan2( (double) dy, (double) dx ) * 1800 / M_PI );
RotatePoint( &dx, &dy, angle ); /* The segment dx, dy is horizontal
* -> Length = dx, dy = 0 */
RotatePoint( &cX, &cY, angle );
cX = dx / 2; /* cX, cY is on the median segment 0.0 a dx, 0 */
RotatePoint( &cX, &cY, -angle );
cX += arcState.startPoint.x;
cY += arcState.startPoint.y;
DrawItem->m_Pos.x = cX;
DrawItem->m_Pos.y = cY;
dx = arcState.startPoint.x - DrawItem->m_Pos.x;
dy = arcState.startPoint.y - DrawItem->m_Pos.y;
DrawItem->m_Radius = (int) sqrt( ( (double) dx * dx ) +
( (double) dy * dy ) );
DrawItem->m_t1 = (int) ( atan2( (double) dy, (double) dx ) * 1800 / M_PI );
dx = arcState.endPoint.x - DrawItem->m_Pos.x;
dy = arcState.endPoint.y - DrawItem->m_Pos.y;
DrawItem->m_t2 = (int) ( atan2( (double) dy, (double) dx ) * 1800 / M_PI );
DrawItem->m_ArcStart.x = arcState.startPoint.x;
DrawItem->m_ArcStart.y = arcState.startPoint.y;
DrawItem->m_ArcEnd.x = arcState.endPoint.x;
DrawItem->m_ArcEnd.y = arcState.endPoint.y;
NORMALIZE_ANGLE( DrawItem->m_t1 );
NORMALIZE_ANGLE( DrawItem->m_t2 ); // angles = 0 .. 3600
// Restrict angle to less than 180 to avoid PBS display mirror
// Trace because it is assumed that the arc is less than 180 deg to find
// orientation after rotate or mirror.
if( (DrawItem->m_t2 - DrawItem->m_t1) > 1800 )
DrawItem->m_t2 -= 3600;
else if( (DrawItem->m_t2 - DrawItem->m_t1) <= -1800 )
DrawItem->m_t2 += 3600;
wxString msg;
angle = DrawItem->m_t2 - DrawItem->m_t1;
msg.Printf( _( "Arc %.1f deg" ), (float) angle / 10 );
WinEDA_SchematicFrame* frame =
(WinEDA_SchematicFrame*) wxGetApp().GetTopWindow();
frame->m_LibeditFrame->PrintMsg( msg );
while( (DrawItem->m_t2 - DrawItem->m_t1) >= 1800 )
{
DrawItem->m_t2--;
DrawItem->m_t1++;
}
while( (DrawItem->m_t1 - DrawItem->m_t2) >= 1800 )
{
DrawItem->m_t2++;
DrawItem->m_t1--;
}
NORMALIZE_ANGLE( DrawItem->m_t1 );
NORMALIZE_ANGLE( DrawItem->m_t2 );
}
//! @brief Given three points A B C, compute the circumcenter of the resulting triangle
//! reference: http://en.wikipedia.org/wiki/Circumscribed_circle
//! Coordinates of circumcenter in Cartesian coordinates
static wxPoint ComputeCircumCenter( wxPoint A, wxPoint B, wxPoint C )
{
double circumCenterX, circumCenterY;
double Ax = (double) A.x;
double Ay = (double) A.y;
double Bx = (double) B.x;
double By = (double) B.y;
double Cx = (double) C.x;
double Cy = (double) C.y;
wxPoint circumCenter;
double D = 2.0 * ( Ax * ( By - Cy ) + Bx * ( Cy - Ay ) + Cx * ( Ay - By ) );
// prevent division / 0
if( fabs( D ) < 1e-7 )
D = 1e-7;
circumCenterX = ( (Ay * Ay + Ax * Ax) * (By - Cy) +
(By * By + Bx * Bx) * (Cy - Ay) +
(Cy * Cy + Cx * Cx) * (Ay - By) ) / D;
circumCenterY = ( (Ay * Ay + Ax * Ax) * (Cx - Bx) +
(By * By + Bx * Bx) * (Ax - Cx) +
(Cy * Cy + Cx * Cx) * (Bx - Ax) ) / D;
circumCenter.x = (int) circumCenterX;
circumCenter.y = (int) circumCenterY;
return circumCenter;
}
/*
* Used for deleting last entered segment while creating a Polyline
*/
void WinEDA_LibeditFrame::DeleteDrawPoly( wxDC* DC )
{
if( m_drawItem == NULL
|| m_drawItem->Type() != COMPONENT_POLYLINE_DRAW_TYPE )
return;
LIB_POLYLINE* Poly = (LIB_POLYLINE*) m_drawItem;
m_drawItem->Draw( DrawPanel, DC, wxPoint( 0, 0 ), -1, g_XorMode, NULL,
DefaultTransformMatrix );
// First segment is kept, only its end point is changed
while( Poly->GetCornerCount() > 2 )
{
Poly->m_PolyPoints.pop_back();
unsigned idx = Poly->GetCornerCount() - 1;
wxPoint point = GetScreen()->m_Curseur;
NEGATE( point.y );
if( Poly->m_PolyPoints[idx] != point )
{
Poly->m_PolyPoints[idx] = point;
break;
}
}
m_drawItem->Draw( DrawPanel, DC, wxPoint( 0, 0 ), -1, g_XorMode, NULL,
DefaultTransformMatrix );
}
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