kicad/common/base_screen.cpp

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/********************************************************/
/* base_screen.cpp - BASE_SCREEN object implementation. */
/********************************************************/
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#ifdef __GNUG__
#pragma implementation
#endif
#include "fctsys.h"
#include "common.h"
#include "base_struct.h"
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#include "sch_item_struct.h"
#include "class_base_screen.h"
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#include "id.h"
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/* Implement wxSize array for grid list implementation. */
#include <wx/arrimpl.cpp>
WX_DEFINE_OBJARRAY( GridArray );
BASE_SCREEN* ActiveScreen = NULL;
#define CURSOR_SIZE 12 /* size of the cross cursor. */
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BASE_SCREEN::BASE_SCREEN( KICAD_T aType ) : EDA_BaseStruct( aType )
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{
EEDrawList = NULL; /* Schematic items list */
m_UndoRedoCountMax = 10; /* undo/Redo command Max depth, 10 is a
* reasonable value */
m_FirstRedraw = TRUE;
m_ScreenNumber = 1;
m_NumberOfScreen = 1; /* Hierarchy: Root: ScreenNumber = 1 */
m_ZoomScalar = 10;
m_Zoom = 32 * m_ZoomScalar;
m_Grid.m_Size = wxRealPoint( 50, 50 ); /* Default grid size */
m_Grid.m_Id = ID_POPUP_GRID_LEVEL_50;
m_UserGridIsON = FALSE;
m_Center = true;
m_CurrentSheetDesc = &g_Sheet_A4;
m_IsPrinting = false;
InitDatas();
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}
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BASE_SCREEN::~BASE_SCREEN()
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{
}
void BASE_SCREEN::InitDatas()
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{
if( m_Center )
{
m_Curseur.x = m_Curseur.y = 0;
m_DrawOrg.x = -ReturnPageSize().x / 2;
m_DrawOrg.y = -ReturnPageSize().y / 2;
}
else
{
m_DrawOrg.x = m_DrawOrg.y = 0;
m_Curseur.x = ReturnPageSize().x / 2;
m_Curseur.y = ReturnPageSize().y / 2;
}
m_O_Curseur = m_Curseur;
SetCurItem( NULL );
m_FlagRefreshReq = 0; /* Redraw screen request flag */
m_FlagModified = 0; // Set when any change is made on broad
m_FlagSave = 1; // Used in auto save: set when an auto save is made
}
/**
* Get screen units scalar.
*
* Default implementation returns scalar used for schematic screen. The
* internal units used by the schematic screen is 1 mil (0.001"). Override
* this in derived classes that require internal units other than 1 mil.
*/
int BASE_SCREEN::GetInternalUnits( void )
{
return EESCHEMA_INTERNAL_UNIT;
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}
wxSize BASE_SCREEN::ReturnPageSize( void )
{
int internal_units = GetInternalUnits();
return wxSize( ( m_CurrentSheetDesc->m_Size.x * internal_units ) / 1000,
( m_CurrentSheetDesc->m_Size.y * internal_units ) / 1000 );
}
/**
* Function CursorRealPosition
* @return the position in user units of location ScreenPos
* @param ScreenPos = the screen (in pixel) position co convert
*/
wxPoint BASE_SCREEN::CursorRealPosition( const wxPoint& ScreenPos )
{
wxPoint curpos = ScreenPos;
Unscale( curpos );
//#ifndef WX_ZOOM
curpos += m_DrawOrg;
//#endif
return curpos;
}
/** Function SetScalingFactor
* calculates the .m_Zoom member to have a given scaling factor
* @param the the current scale used to draw items on screen
* draw coordinates are user coordinates * GetScalingFactor( )
*/
void BASE_SCREEN::SetScalingFactor(double aScale )
{
int zoom = static_cast<int>( ceil(aScale * m_ZoomScalar) );
// Limit zoom to max and min allowed values:
if (zoom < m_ZoomList[0])
zoom = m_ZoomList[0];
int idxmax = m_ZoomList.GetCount() - 1;
if (zoom > m_ZoomList[idxmax])
zoom = m_ZoomList[idxmax];
SetZoom( zoom );
}
/**
* Calculate coordinate value for zooming.
*
* Call this method when drawing on the device context. It scales the
* coordinate using the current zoom settings. Zooming in Kicad occurs
* by actually scaling the entire drawing using the zoom setting.
*
* FIXME: We should probably use wxCoord instead of int here but that would
* require using wxCoord in all of the other code that makes device
* context calls as well.
*/
int BASE_SCREEN::Scale( int coord )
{
#ifdef WX_ZOOM
return coord;
#else
if( !m_ZoomScalar || !m_Zoom )
return coord;
return wxRound( (double) ( coord * m_ZoomScalar ) / (double) m_Zoom );
#endif
}
double BASE_SCREEN::Scale( double coord )
{
#ifdef WX_ZOOM
return coord;
#else
if( !m_Zoom )
return 0;
if( !m_ZoomScalar || !m_Zoom )
return 0;
return ( coord * (double) m_ZoomScalar ) / (double) m_Zoom;
#endif
}
void BASE_SCREEN::Scale( wxPoint& pt )
{
pt.x = Scale( pt.x );
pt.y = Scale( pt.y );
}
void BASE_SCREEN::Scale( wxRealPoint& pt )
{
#ifdef WX_ZOOM
// No change
#else
if( !m_ZoomScalar || !m_Zoom )
return;
pt.x = pt.x * m_ZoomScalar / (double) m_Zoom;
pt.y = pt.y * m_ZoomScalar / (double) m_Zoom;
#endif
}
void BASE_SCREEN::Scale( wxSize& sz )
{
sz.SetHeight( Scale( sz.GetHeight() ) );
sz.SetWidth( Scale( sz.GetWidth() ) );
}
/**
* Calculate the physical (unzoomed) location of a coordinate.
*
* Call this method when you want to find the unzoomed (physical) location
* of a coordinate on the drawing.
*/
int BASE_SCREEN::Unscale( int coord )
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{
#ifdef WX_ZOOM
return coord;
#else
if( !m_Zoom || !m_ZoomScalar )
return 0;
return wxRound( (double) ( coord * m_Zoom ) / (double) m_ZoomScalar );
#endif
}
void BASE_SCREEN::Unscale( wxPoint& pt )
{
pt.x = Unscale( pt.x );
pt.y = Unscale( pt.y );
}
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void BASE_SCREEN::Unscale( wxSize& sz )
{
sz.SetHeight( Unscale( sz.GetHeight() ) );
sz.SetWidth( Unscale( sz.GetWidth() ) );
}
void BASE_SCREEN::SetZoomList( const wxArrayInt& zoomlist )
{
if( !m_ZoomList.IsEmpty() )
m_ZoomList.Empty();
m_ZoomList = zoomlist;
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}
bool BASE_SCREEN::SetFirstZoom()
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{
if( m_ZoomList.IsEmpty() )
{
if( m_Zoom != m_ZoomScalar )
{
m_Zoom = m_ZoomScalar;
return true;
}
}
else if( m_Zoom != m_ZoomList[0] )
{
m_Zoom = m_ZoomList[0];
return true;
}
return false;
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}
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int BASE_SCREEN::GetZoom() const
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{
return m_Zoom;
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}
bool BASE_SCREEN::SetZoom( int coeff )
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{
if( coeff == m_Zoom )
return false;
m_Zoom = coeff;
if( m_Zoom < 1 )
m_Zoom = 1;
return true;
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}
bool BASE_SCREEN::SetNextZoom()
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{
size_t i;
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if( m_ZoomList.IsEmpty() || m_Zoom >= m_ZoomList.Last() )
return false;
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for( i = 0; i < m_ZoomList.GetCount(); i++ )
{
if( m_Zoom < m_ZoomList[i] )
{
m_Zoom = m_ZoomList[i];
return true;
}
}
return false;
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}
bool BASE_SCREEN::SetPreviousZoom()
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{
size_t i;
if( m_ZoomList.IsEmpty() || m_Zoom <= m_ZoomList[0] )
return false;
for( i = m_ZoomList.GetCount(); i != 0; i-- )
{
if( m_Zoom > m_ZoomList[i - 1] )
{
m_Zoom = m_ZoomList[i - 1];
return true;
}
}
return false;
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}
bool BASE_SCREEN::SetLastZoom()
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{
if( m_ZoomList.IsEmpty() || m_Zoom == m_ZoomList.Last() )
return false;
m_Zoom = m_ZoomList.Last();
return true;
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}
void BASE_SCREEN::SetGridList( GridArray& gridlist )
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{
if( !m_GridList.IsEmpty() )
m_GridList.Clear();
m_GridList = gridlist;
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}
void BASE_SCREEN::SetGrid( const wxRealPoint& size )
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{
wxASSERT( !m_GridList.IsEmpty() );
size_t i;
GRID_TYPE nearest_grid = m_GridList[0];
for( i = 0; i < m_GridList.GetCount(); i++ )
{
if( m_GridList[i].m_Size == size )
{
m_Grid = m_GridList[i];
return;
}
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// keep trace of the nearest grill size, if the exact size is not found
if ( size.x < m_GridList[i].m_Size.x )
nearest_grid = m_GridList[i];
}
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m_Grid = nearest_grid;
wxLogWarning( wxT( "Grid size( %f, %f ) not in grid list, falling back " ) \
wxT( "to grid size( %f, %f )." ),
size.x, size.y, m_Grid.m_Size.x, m_Grid.m_Size.y );
}
/* Set grid size from command ID. */
void BASE_SCREEN::SetGrid( int id )
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{
wxASSERT( !m_GridList.IsEmpty() );
size_t i;
for( i = 0; i < m_GridList.GetCount(); i++ )
{
if( m_GridList[i].m_Id == id )
{
m_Grid = m_GridList[i];
return;
}
}
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m_Grid = m_GridList[0];
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wxLogWarning( wxT( "Grid ID %d not in grid list, falling back to " ) \
wxT( "grid size( %g, %g )." ), id, m_Grid.m_Size.x,
m_Grid.m_Size.y );
}
void BASE_SCREEN::AddGrid( const GRID_TYPE& grid )
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{
size_t i;
for( i = 0; i < m_GridList.GetCount(); i++ )
{
if( m_GridList[i].m_Size == grid.m_Size
&& grid.m_Id != ID_POPUP_GRID_USER )
{
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wxLogDebug( wxT( "Discarding duplicate grid size( %g, %g )." ),
grid.m_Size.x, grid.m_Size.y );
return;
}
if( m_GridList[i].m_Id == grid.m_Id )
{
wxLogDebug( wxT( "Changing grid ID %d from size( %g, %g ) to " ) \
wxT( "size( %g, %g )." ),
grid.m_Id, m_GridList[i].m_Size.x,
m_GridList[i].m_Size.y, grid.m_Size.x, grid.m_Size.y );
m_GridList[i].m_Size = grid.m_Size;
return;
}
}
// wxLogDebug( wxT( "Adding grid ID %d size( %d, %d ) to grid list." ), grid.m_Id, grid.m_Size.x, grid.m_Size.y );
m_GridList.Add( grid );
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}
void BASE_SCREEN::AddGrid( const wxRealPoint& size, int id )
{
GRID_TYPE grid;
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grid.m_Size = size;
grid.m_Id = id;
AddGrid( grid );
}
void BASE_SCREEN::AddGrid( const wxRealPoint& size, int units, int id )
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{
double x, y;
wxRealPoint new_size;
GRID_TYPE new_grid;
if( units == MILLIMETRE )
{
x = size.x / 25.4000508001016;
y = size.y / 25.4000508001016;
}
else if( units == CENTIMETRE )
{
x = size.x / 2.54000508001016;
y = size.y / 2.54000508001016;
}
else
{
x = size.x;
y = size.y;
}
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new_size.x = x * GetInternalUnits();
new_size.y = y * GetInternalUnits();
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new_grid.m_Id = id;
new_grid.m_Size = new_size;
AddGrid( new_grid );
}
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GRID_TYPE BASE_SCREEN::GetGrid()
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{
return m_Grid;
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}
wxRealPoint BASE_SCREEN::GetGridSize()
{
return m_Grid.m_Size;
}
int BASE_SCREEN::GetGridId()
{
return m_Grid.m_Id;
}
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/* free the undo and the redo lists
*/
void BASE_SCREEN::ClearUndoRedoList()
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{
ClearUndoORRedoList( m_UndoList );
ClearUndoORRedoList( m_RedoList );
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}
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/* Put aNewitem in top of undo list
* Deletes old items if > count max.
*/
void BASE_SCREEN::PushCommandToUndoList( PICKED_ITEMS_LIST* aNewitem )
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{
m_UndoList.PushCommand( aNewitem );
/* Delete the extra items, if count max reached */
int extraitems = GetUndoCommandCount() - m_UndoRedoCountMax;
if( extraitems > 0 ) // Delete the extra items
ClearUndoORRedoList( m_UndoList, extraitems );
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}
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void BASE_SCREEN::PushCommandToRedoList( PICKED_ITEMS_LIST* aNewitem )
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{
m_RedoList.PushCommand( aNewitem );
/* Delete the extra items, if count max reached */
int extraitems = GetRedoCommandCount() - m_UndoRedoCountMax;
if( extraitems > 0 ) // Delete the extra items
ClearUndoORRedoList( m_RedoList, extraitems );
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}
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PICKED_ITEMS_LIST* BASE_SCREEN::PopCommandFromUndoList( )
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{
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return m_UndoList.PopCommand( );
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}
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PICKED_ITEMS_LIST* BASE_SCREEN::PopCommandFromRedoList( )
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{
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return m_RedoList.PopCommand( );
}
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#if defined(DEBUG)
/**
* Function Show
* is used to output the object tree, currently for debugging only.
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* @param nestLevel An aid to prettier tree indenting, and is the level
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* of nesting of this object within the overall tree.
* @param os The ostream& to output to.
*/
void BASE_SCREEN::Show( int nestLevel, std::ostream& os )
{
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SCH_ITEM* item = EEDrawList;
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// for now, make it look like XML, expand on this later.
NestedSpace( nestLevel, os ) << '<' << GetClass().Lower().mb_str() <<
">\n";
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for( ; item; item = item->Next() )
{
item->Show( nestLevel+1, os );
}
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NestedSpace( nestLevel, os ) << "</" << GetClass().Lower().mb_str() << ">\n";
}
#endif