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kicad/common/drawframe.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 2008-2011 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 2004-2011 KiCad Developers, see change_log.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 drawframe.cpp
*/
#include "fctsys.h"
#include "appl_wxstruct.h"
#include "gr_basic.h"
#include "common.h"
#include "bitmaps.h"
#include "macros.h"
#include "id.h"
#include "class_drawpanel.h"
#include "class_base_screen.h"
#include "wxstruct.h"
#include "confirm.h"
#include "kicad_device_context.h"
#include "dialog_helpers.h"
#include <wx/fontdlg.h>
/**
* Definition for enabling and disabling scroll bar setting trace output. See the
* wxWidgets documentation on useing the WXTRACE environment variable.
*/
static const wxString traceScrollSettings( wxT( "KicadScrollSettings" ) );
/* Configuration entry names. */
static const wxString CursorShapeEntryKeyword( wxT( "CursorShape" ) );
static const wxString ShowGridEntryKeyword( wxT( "ShowGrid" ) );
static const wxString GridColorEntryKeyword( wxT( "GridColor" ) );
static const wxString LastGridSizeId( wxT( "_LastGridSize" ) );
BEGIN_EVENT_TABLE( EDA_DRAW_FRAME, EDA_BASE_FRAME )
EVT_MOUSEWHEEL( EDA_DRAW_FRAME::OnMouseEvent )
EVT_MENU_OPEN( EDA_DRAW_FRAME::OnMenuOpen )
EVT_ACTIVATE( EDA_DRAW_FRAME::OnActivate )
EVT_MENU_RANGE( ID_ZOOM_IN, ID_ZOOM_REDRAW, EDA_DRAW_FRAME::OnZoom )
EVT_MENU_RANGE( ID_POPUP_ZOOM_START_RANGE, ID_POPUP_ZOOM_END_RANGE,
EDA_DRAW_FRAME::OnZoom )
EVT_MENU_RANGE( ID_POPUP_GRID_LEVEL_1000, ID_POPUP_GRID_USER,
EDA_DRAW_FRAME::OnSelectGrid )
EVT_TOOL( ID_TB_OPTIONS_SHOW_GRID, EDA_DRAW_FRAME::OnToggleGridState )
EVT_TOOL_RANGE( ID_TB_OPTIONS_SELECT_UNIT_MM, ID_TB_OPTIONS_SELECT_UNIT_INCH,
EDA_DRAW_FRAME::OnSelectUnits )
EVT_TOOL( ID_TB_OPTIONS_SELECT_CURSOR, EDA_DRAW_FRAME::OnToggleCrossHairStyle )
EVT_UPDATE_UI( wxID_UNDO, EDA_DRAW_FRAME::OnUpdateUndo )
EVT_UPDATE_UI( wxID_REDO, EDA_DRAW_FRAME::OnUpdateRedo )
EVT_UPDATE_UI( ID_TB_OPTIONS_SHOW_GRID, EDA_DRAW_FRAME::OnUpdateGrid )
EVT_UPDATE_UI( ID_TB_OPTIONS_SELECT_CURSOR, EDA_DRAW_FRAME::OnUpdateCrossHairStyle )
EVT_UPDATE_UI_RANGE( ID_TB_OPTIONS_SELECT_UNIT_MM, ID_TB_OPTIONS_SELECT_UNIT_INCH,
EDA_DRAW_FRAME::OnUpdateUnits )
END_EVENT_TABLE()
EDA_DRAW_FRAME::EDA_DRAW_FRAME( wxWindow* father, int idtype, const wxString& title,
const wxPoint& pos, const wxSize& size, long style ) :
EDA_BASE_FRAME( father, idtype, title, pos, size, style )
{
wxSize minsize;
m_drawToolBar = NULL;
m_optionsToolBar = NULL;
m_gridSelectBox = NULL;
m_zoomSelectBox = NULL;
m_HotkeysZoomAndGridList = NULL;
m_canvas = NULL;
m_messagePanel = NULL;
m_currentScreen = NULL;
m_toolId = ID_NO_TOOL_SELECTED;
m_lastDrawToolId = ID_NO_TOOL_SELECTED;
m_showAxis = false; // true to draw axis.
m_showBorderAndTitleBlock = false; // true to display reference sheet.
m_showGridAxis = false; // true to draw the grid axis
m_cursorShape = 0;
m_LastGridSizeId = 0;
m_DrawGrid = true; // hide/Show grid. default = show
m_GridColor = DARKGRAY; // Grid color
m_snapToGrid = true;
// Internal units per inch: = 1000 for schema, = 10000 for PCB
m_internalUnits = EESCHEMA_INTERNAL_UNIT;
minsize.x = 470;
minsize.y = 350 + m_MsgFrameHeight;
SetSizeHints( minsize.x, minsize.y, -1, -1, -1, -1 );
/* Make sure window has a sane minimum size. */
if( ( size.x < minsize.x ) || ( size.y < minsize.y ) )
SetSize( 0, 0, minsize.x, minsize.y );
// Pane sizes for status bar.
// @todo these should be sized based on typical text content, like
// "dx -10.123 -10.123 dy -10.123 -10.123" using the system font which is
// in play on a particular platform, and should not be constants.
// Please do not reduce these constant values, and please use dynamic
// system font specific sizing in the future.
#define ZOOM_DISPLAY_SIZE 60
#define COORD_DISPLAY_SIZE 165
#define DELTA_DISPLAY_SIZE 190
#define UNITS_DISPLAY_SIZE 65
#define FUNCTION_DISPLAY_SIZE 110
static const int dims[6] = { -1, ZOOM_DISPLAY_SIZE,
COORD_DISPLAY_SIZE, DELTA_DISPLAY_SIZE,
UNITS_DISPLAY_SIZE, FUNCTION_DISPLAY_SIZE };
CreateStatusBar( 6 );
SetStatusWidths( 6, dims );
// Create child subwindows.
GetClientSize( &m_FrameSize.x, &m_FrameSize.y );
m_FramePos.x = m_FramePos.y = 0;
m_FrameSize.y -= m_MsgFrameHeight;
m_canvas = new EDA_DRAW_PANEL( this, -1, wxPoint( 0, 0 ), m_FrameSize );
m_messagePanel = new EDA_MSG_PANEL( this, -1, wxPoint( 0, m_FrameSize.y ),
wxSize( m_FrameSize.x, m_MsgFrameHeight ) );
m_messagePanel->SetBackgroundColour( wxColour( ColorRefs[LIGHTGRAY].m_Red,
ColorRefs[LIGHTGRAY].m_Green,
ColorRefs[LIGHTGRAY].m_Blue ) );
}
EDA_DRAW_FRAME::~EDA_DRAW_FRAME()
{
SAFE_DELETE( m_currentScreen );
m_auimgr.UnInit();
}
void EDA_DRAW_FRAME::unitsChangeRefresh()
{
UpdateStatusBar();
EDA_ITEM* item = GetScreen()->GetCurItem();
if( item )
item->DisplayInfo( this );
}
void EDA_DRAW_FRAME::EraseMsgBox()
{
if( m_messagePanel )
m_messagePanel->EraseMsgBox();
}
void EDA_DRAW_FRAME::OnActivate( wxActivateEvent& event )
{
m_FrameIsActive = event.GetActive();
if( m_canvas )
m_canvas->SetCanStartBlock( -1 );
event.Skip(); // required under wxMAC
}
void EDA_DRAW_FRAME::OnMenuOpen( wxMenuEvent& event )
{
if( m_canvas )
m_canvas->SetCanStartBlock( -1 );
event.Skip();
}
void EDA_DRAW_FRAME::OnToggleGridState( wxCommandEvent& aEvent )
{
SetGridVisibility( !IsGridVisible() );
m_canvas->Refresh();
}
void EDA_DRAW_FRAME::OnSelectUnits( wxCommandEvent& aEvent )
{
if( aEvent.GetId() == ID_TB_OPTIONS_SELECT_UNIT_MM && g_UserUnit != MILLIMETRES )
{
g_UserUnit = MILLIMETRES;
unitsChangeRefresh();
}
else if( aEvent.GetId() == ID_TB_OPTIONS_SELECT_UNIT_INCH && g_UserUnit != INCHES )
{
g_UserUnit = INCHES;
unitsChangeRefresh();
}
}
void EDA_DRAW_FRAME::OnToggleCrossHairStyle( wxCommandEvent& aEvent )
{
INSTALL_UNBUFFERED_DC( dc, m_canvas );
m_canvas->CrossHairOff( &dc );
m_cursorShape = !m_cursorShape;
m_canvas->CrossHairOn( &dc );
}
void EDA_DRAW_FRAME::OnUpdateUndo( wxUpdateUIEvent& aEvent )
{
if( GetScreen() )
aEvent.Enable( GetScreen()->GetUndoCommandCount() > 0 );
}
void EDA_DRAW_FRAME::OnUpdateRedo( wxUpdateUIEvent& aEvent )
{
if( GetScreen() )
aEvent.Enable( GetScreen()->GetRedoCommandCount() > 0 );
}
void EDA_DRAW_FRAME::OnUpdateUnits( wxUpdateUIEvent& aEvent )
{
bool enable;
enable = ( ((aEvent.GetId() == ID_TB_OPTIONS_SELECT_UNIT_MM) && (g_UserUnit == MILLIMETRES))
|| ((aEvent.GetId() == ID_TB_OPTIONS_SELECT_UNIT_INCH) && (g_UserUnit == INCHES)) );
aEvent.Check( enable );
DisplayUnitsMsg();
}
void EDA_DRAW_FRAME::OnUpdateGrid( wxUpdateUIEvent& aEvent )
{
wxString tool_tip = IsGridVisible() ? _( "Hide grid" ) : _( "Show grid" );
aEvent.Check( IsGridVisible() );
m_optionsToolBar->SetToolShortHelp( ID_TB_OPTIONS_SHOW_GRID, tool_tip );
}
void EDA_DRAW_FRAME::OnUpdateCrossHairStyle( wxUpdateUIEvent& aEvent )
{
aEvent.Check( m_cursorShape );
}
void EDA_DRAW_FRAME::ReCreateAuxiliaryToolbar()
{
}
void EDA_DRAW_FRAME::ReCreateMenuBar()
{
}
void EDA_DRAW_FRAME::OnHotKey( wxDC* aDC, int aHotKey, const wxPoint& aPosition, EDA_ITEM* aItem )
{
}
void EDA_DRAW_FRAME::ToolOnRightClick( wxCommandEvent& event )
{
}
void EDA_DRAW_FRAME::PrintPage( wxDC* aDC,int aPrintMask, bool aPrintMirrorMode, void* aData )
{
wxMessageBox( wxT("EDA_DRAW_FRAME::PrintPage() error") );
}
void EDA_DRAW_FRAME::OnSelectGrid( wxCommandEvent& event )
{
int* clientData;
int id = ID_POPUP_GRID_LEVEL_100;
if( event.GetEventType() == wxEVT_COMMAND_COMBOBOX_SELECTED )
{
if( m_gridSelectBox == NULL )
return;
/*
* Don't use wxCommandEvent::GetClientData() here. It always
* returns NULL in GTK. This solution is not as elegant but
* it works.
*/
int index = m_gridSelectBox->GetSelection();
wxASSERT( index != wxNOT_FOUND );
clientData = (int*) m_gridSelectBox->wxItemContainer::GetClientData( index );
if( clientData != NULL )
id = *clientData;
}
else
{
id = event.GetId();
/* Update the grid select combobox if the grid size was changed
* by menu event.
*/
if( m_gridSelectBox != NULL )
{
for( size_t i = 0; i < m_gridSelectBox->GetCount(); i++ )
{
clientData = (int*) m_gridSelectBox->wxItemContainer::GetClientData( i );
if( clientData && id == *clientData )
{
m_gridSelectBox->SetSelection( i );
break;
}
}
}
}
BASE_SCREEN* screen = GetScreen();
if( screen->GetGridId() == id )
return;
/*
* This allows for saving non-sequential command ID offsets used that
* may be used in the grid size combobox. Do not use the selection
* index returned by GetSelection().
*/
m_LastGridSizeId = id - ID_POPUP_GRID_LEVEL_1000;
screen->SetGrid( id );
screen->SetCrossHairPosition( screen->RefPos( true ) );
Refresh();
}
void EDA_DRAW_FRAME::OnSelectZoom( wxCommandEvent& event )
{
if( m_zoomSelectBox == NULL )
return; // Should not happen!
int id = m_zoomSelectBox->GetCurrentSelection();
if( id < 0 || !( id < (int)m_zoomSelectBox->GetCount() ) )
return;
if( id == 0 ) // Auto zoom (Fit in Page)
{
Zoom_Automatique( true );
}
else
{
id--;
int selectedZoom = GetScreen()->m_ZoomList[id];
if( GetScreen()->GetZoom() == selectedZoom )
return;
GetScreen()->SetZoom( selectedZoom );
RedrawScreen( GetScreen()->GetScrollCenterPosition(), false );
}
}
double EDA_DRAW_FRAME::GetZoom( void )
{
return GetScreen()->GetZoom();
}
void EDA_DRAW_FRAME::OnMouseEvent( wxMouseEvent& event )
{
event.Skip();
}
void EDA_DRAW_FRAME::OnLeftDClick( wxDC* DC, const wxPoint& MousePos )
{
}
void EDA_DRAW_FRAME::DisplayToolMsg( const wxString& msg )
{
SetStatusText( msg, 5 );
}
void EDA_DRAW_FRAME::DisplayUnitsMsg()
{
wxString msg;
switch( g_UserUnit )
{
case INCHES:
msg = _( "Inches" );
break;
case MILLIMETRES:
msg += _( "mm" );
break;
default:
msg += _( "Units" );
break;
}
SetStatusText( msg, 4 );
}
void EDA_DRAW_FRAME::OnSize( wxSizeEvent& SizeEv )
{
m_FrameSize = GetClientSize( );
SizeEv.Skip();
}
void EDA_DRAW_FRAME::SetToolID( int aId, int aCursor, const wxString& aToolMsg )
{
// Keep default cursor in toolbars
SetCursor( wxNullCursor );
// Change m_canvas cursor if requested.
if( m_canvas && aCursor >= 0 )
m_canvas->SetCurrentCursor( aCursor );
DisplayToolMsg( aToolMsg );
if( aId < 0 )
return;
wxCHECK2_MSG( aId >= ID_NO_TOOL_SELECTED, aId = ID_NO_TOOL_SELECTED,
wxString::Format( wxT( "Current tool ID cannot be set to %d." ), aId ) );
m_toolId = aId;
}
void EDA_DRAW_FRAME::OnGrid( int grid_type )
{
}
wxPoint EDA_DRAW_FRAME::GetGridPosition( const wxPoint& aPosition )
{
wxPoint pos = aPosition;
if( m_currentScreen != NULL && m_snapToGrid )
pos = m_currentScreen->GetNearestGridPosition( aPosition );
return pos;
}
int EDA_DRAW_FRAME::ReturnBlockCommand( int key )
{
return 0;
}
void EDA_DRAW_FRAME::InitBlockPasteInfos()
{
GetScreen()->m_BlockLocate.ClearItemsList();
m_canvas->SetMouseCaptureCallback( NULL );
}
void EDA_DRAW_FRAME::HandleBlockPlace( wxDC* DC )
{
}
bool EDA_DRAW_FRAME::HandleBlockEnd( wxDC* DC )
{
return false;
}
void EDA_DRAW_FRAME::AdjustScrollBars( const wxPoint& aCenterPosition )
{
int unitsX, unitsY, posX, posY;
wxSize clientSize, logicalClientSize, virtualSize;
BASE_SCREEN* screen = GetScreen();
bool noRefresh = true;
if( screen == NULL || m_canvas == NULL )
return;
double scalar = screen->GetScalingFactor();
wxLogTrace( traceScrollSettings, wxT( "Center Position = ( %d, %d ), scalar = %0.5f." ),
aCenterPosition.x, aCenterPosition.y, scalar );
// Calculate the portion of the drawing that can be displayed in the
// client area at the current zoom level.
clientSize = m_canvas->GetClientSize();
// The logical size of the client window.
logicalClientSize.x = wxRound( (double) clientSize.x / scalar );
logicalClientSize.y = wxRound( (double) clientSize.y / scalar );
// The upper left corner of the drawing in device units.
int w = screen->ReturnPageSize().x;
int h = screen->ReturnPageSize().y;
// The drawing rectangle logical units
wxRect drawingRect( wxPoint( 0, 0 ), wxSize( w, h ) );
wxLogTrace( traceScrollSettings, wxT( "Logical drawing rect = ( %d, %d, %d, %d )." ),
drawingRect.x, drawingRect.y, drawingRect.width, drawingRect.height );
wxLogTrace( traceScrollSettings, wxT( " left %d, right %d, top %d, bottome %d" ),
drawingRect.GetLeft(), drawingRect.GetRight(),
drawingRect.GetTop(), drawingRect.GetBottom() );
// The size of the client rectangle in logical units.
int x = wxRound( (double) aCenterPosition.x - ( (double) logicalClientSize.x / 2.0 ) );
int y = wxRound( (double) aCenterPosition.y - ( (double) logicalClientSize.y / 2.0 ) );
// If drawn around the center, adjust the client rectangle accordingly.
if( screen->m_Center )
{
x += wxRound( (double) drawingRect.width / 2.0 );
y += wxRound( (double) drawingRect.height / 2.0 );
}
wxRect logicalClientRect( wxPoint( x, y ), logicalClientSize );
wxLogTrace( traceScrollSettings, wxT( "Logical client rect = ( %d, %d, %d, %d )." ),
logicalClientRect.x, logicalClientRect.y,
logicalClientRect.width, logicalClientRect.height );
wxLogTrace( traceScrollSettings, wxT( " left %d, right %d, top %d, bottome %d" ),
logicalClientRect.GetLeft(), logicalClientRect.GetRight(),
logicalClientRect.GetTop(), logicalClientRect.GetBottom() );
if( drawingRect == logicalClientRect )
{
virtualSize = drawingRect.GetSize();
}
else if( drawingRect.Contains( logicalClientRect ) )
{
virtualSize = drawingRect.GetSize();
}
else
{
int drawingCenterX = drawingRect.x + ( drawingRect.width / 2 );
int clientCenterX = logicalClientRect.x + ( logicalClientRect.width / 2 );
int drawingCenterY = drawingRect.y + ( drawingRect.height / 2 );
int clientCenterY = logicalClientRect.y + ( logicalClientRect.height / 2 );
if( logicalClientRect.width > drawingRect.width )
{
if( drawingCenterX > clientCenterX )
virtualSize.x = ( drawingCenterX - logicalClientRect.GetLeft() ) * 2;
else if( drawingCenterX < clientCenterX )
virtualSize.x = ( logicalClientRect.GetRight() - drawingCenterX ) * 2;
else
virtualSize.x = logicalClientRect.width;
}
else if( logicalClientRect.width < drawingRect.width )
{
if( drawingCenterX > clientCenterX )
virtualSize.x = drawingRect.width +
( (drawingRect.GetLeft() - logicalClientRect.GetLeft() ) * 2 );
else if( drawingCenterX < clientCenterX )
virtualSize.x = drawingRect.width +
( (logicalClientRect.GetRight() - drawingRect.GetRight() ) * 2 );
else
virtualSize.x = drawingRect.width;
}
else
{
virtualSize.x = drawingRect.width;
}
if( logicalClientRect.height > drawingRect.height )
{
if( drawingCenterY > clientCenterY )
virtualSize.y = ( drawingCenterY - logicalClientRect.GetTop() ) * 2;
else if( drawingCenterY < clientCenterY )
virtualSize.y = ( logicalClientRect.GetBottom() - drawingCenterY ) * 2;
else
virtualSize.y = logicalClientRect.height;
}
else if( logicalClientRect.height < drawingRect.height )
{
if( drawingCenterY > clientCenterY )
virtualSize.y = drawingRect.height +
( ( drawingRect.GetTop() - logicalClientRect.GetTop() ) * 2 );
else if( drawingCenterY < clientCenterY )
virtualSize.y = drawingRect.height +
( ( logicalClientRect.GetBottom() - drawingRect.GetBottom() ) * 2 );
else
virtualSize.y = drawingRect.height;
}
else
{
virtualSize.y = drawingRect.height;
}
}
if( screen->m_Center )
{
screen->m_DrawOrg.x = -( wxRound( (double) virtualSize.x / 2.0 ) );
screen->m_DrawOrg.y = -( wxRound( (double) virtualSize.y / 2.0 ) );
}
else
{
screen->m_DrawOrg.x = -( wxRound( (double) (virtualSize.x - drawingRect.width) / 2.0 ) );
screen->m_DrawOrg.y = -( wxRound( (double) (virtualSize.y - drawingRect.height) / 2.0 ) );
}
/* Always set scrollbar pixels per unit to 1 unless you want the zoom
* around cursor to jump around. This reported problem occurs when the
* zoom point is not on a pixel per unit increment. If you set the
* pixels per unit to 10, you have potential for the zoom point to
* jump around +/-5 pixels from the nearest grid point.
*/
screen->m_ScrollPixelsPerUnitX = screen->m_ScrollPixelsPerUnitY = 1;
// Calculate the number of scroll bar units for the given zoom level in device units.
unitsX = wxRound( (double) virtualSize.x * scalar );
unitsY = wxRound( (double) virtualSize.y * scalar );
// Calculate the scroll bar position in logical units to place the center position at
// the center of client rectangle.
screen->SetScrollCenterPosition( aCenterPosition );
posX = aCenterPosition.x - wxRound( (double) logicalClientRect.width / 2.0 ) -
screen->m_DrawOrg.x;
posY = aCenterPosition.y - wxRound( (double) logicalClientRect.height / 2.0 ) -
screen->m_DrawOrg.y;
// Convert scroll bar position to device units.
posX = wxRound( (double) posX * scalar );
posY = wxRound( (double) posY * scalar );
if( posX < 0 )
{
wxLogTrace( traceScrollSettings, wxT( "Required scroll bar X position %d" ), posX );
posX = 0;
}
if( posX > unitsX )
{
wxLogTrace( traceScrollSettings, wxT( "Required scroll bar X position %d" ), posX );
posX = unitsX;
}
if( posY < 0 )
{
wxLogTrace( traceScrollSettings, wxT( "Required scroll bar Y position %d" ), posY );
posY = 0;
}
if( posY > unitsY )
{
wxLogTrace( traceScrollSettings, wxT( "Required scroll bar Y position %d" ), posY );
posY = unitsY;
}
screen->m_ScrollbarPos = wxPoint( posX, posY );
screen->m_ScrollbarNumber = wxSize( unitsX, unitsY );
wxLogTrace( traceScrollSettings,
wxT( "Drawing = (%d, %d), Client = (%d, %d), Offset = (%d, %d), \
SetScrollbars(%d, %d, %d, %d, %d, %d)" ),
virtualSize.x, virtualSize.y, logicalClientSize.x, logicalClientSize.y,
screen->m_DrawOrg.x, screen->m_DrawOrg.y,
screen->m_ScrollPixelsPerUnitX, screen->m_ScrollPixelsPerUnitY,
screen->m_ScrollbarNumber.x, screen->m_ScrollbarNumber.y,
screen->m_ScrollbarPos.x, screen->m_ScrollbarPos.y );
m_canvas->SetScrollbars( screen->m_ScrollPixelsPerUnitX,
screen->m_ScrollPixelsPerUnitY,
screen->m_ScrollbarNumber.x,
screen->m_ScrollbarNumber.y,
screen->m_ScrollbarPos.x,
screen->m_ScrollbarPos.y, noRefresh );
}
void EDA_DRAW_FRAME::SetLanguage( wxCommandEvent& event )
{
EDA_BASE_FRAME::SetLanguage( event );
}
/**
* Round to the nearest precision.
*
* Try to approximate a coordinate using a given precision to prevent
* rounding errors when converting from inches to mm.
*
* ie round the unit value to 0 if unit is 1 or 2, or 8 or 9
*/
double RoundTo0( double x, double precision )
{
assert( precision != 0 );
long long ix = wxRound( x * precision );
if ( x < 0.0 )
NEGATE( ix );
int remainder = ix % 10; // remainder is in precision mm
if ( remainder <= 2 )
ix -= remainder; // truncate to the near number
else if (remainder >= 8 )
ix += 10 - remainder; // round to near number
if ( x < 0 )
NEGATE( ix );
return (double) ix / precision;
}
void EDA_DRAW_FRAME::UpdateStatusBar()
{
wxString Line;
int dx, dy;
BASE_SCREEN* screen = GetScreen();
if( !screen )
return;
/* Display Zoom level: zoom = zoom_coeff/ZoomScalar */
Line.Printf( wxT( "Z %g" ), screen->GetZoom() );
SetStatusText( Line, 1 );
/* Display absolute coordinates: */
double dXpos = To_User_Unit( g_UserUnit, screen->GetCrossHairPosition().x, m_internalUnits );
double dYpos = To_User_Unit( g_UserUnit, screen->GetCrossHairPosition().y, m_internalUnits );
/*
* Converting from inches to mm can give some coordinates due to
* float point precision rounding errors, like 1.999 or 2.001 so
* round to the nearest drawing precision required by the application.
*/
if ( g_UserUnit == MILLIMETRES )
{
dXpos = RoundTo0( dXpos, (double)( m_internalUnits / 10 ) );
dYpos = RoundTo0( dYpos, (double)( m_internalUnits / 10 ) );
}
/* The following sadly is an if Eeschema/if Pcbnew */
wxString absformatter;
wxString locformatter;
switch( g_UserUnit )
{
case INCHES:
if( m_internalUnits == EESCHEMA_INTERNAL_UNIT )
{
absformatter = wxT( "X %.3f Y %.3f" );
locformatter = wxT( "dx %.3f dy %.3f" );
}
else
{
absformatter = wxT( "X %.4f Y %.4f" );
locformatter = wxT( "dx %.4f dy %.4f" );
}
break;
case MILLIMETRES:
if( m_internalUnits == EESCHEMA_INTERNAL_UNIT )
{
absformatter = wxT( "X %.2f Y %.2f" );
locformatter = wxT( "dx %.2f dy %.2f" );
}
else
{
absformatter = wxT( "X %.3f Y %.3f" );
locformatter = wxT( "dx %.3f dy %.3f" );
}
break;
case UNSCALED_UNITS:
absformatter = wxT( "X %f Y %f" );
locformatter = wxT( "dx %f dy %f" );
break;
}
Line.Printf( absformatter, dXpos, dYpos );
SetStatusText( Line, 2 );
/* Display relative coordinates: */
dx = screen->GetCrossHairPosition().x - screen->m_O_Curseur.x;
dy = screen->GetCrossHairPosition().y - screen->m_O_Curseur.y;
dXpos = To_User_Unit( g_UserUnit, dx, m_internalUnits );
dYpos = To_User_Unit( g_UserUnit, dy, m_internalUnits );
if( g_UserUnit == MILLIMETRES )
{
dXpos = RoundTo0( dXpos, (double) ( m_internalUnits / 10 ) );
dYpos = RoundTo0( dYpos, (double) ( m_internalUnits / 10 ) );
}
/* We already decided the formatter above */
Line.Printf( locformatter, dXpos, dYpos );
SetStatusText( Line, 3 );
}
void EDA_DRAW_FRAME::LoadSettings()
{
wxASSERT( wxGetApp().GetSettings() != NULL );
wxConfig* cfg = wxGetApp().GetSettings();
EDA_BASE_FRAME::LoadSettings();
cfg->Read( m_FrameName + CursorShapeEntryKeyword, &m_cursorShape, ( long )0 );
bool btmp;
if ( cfg->Read( m_FrameName + ShowGridEntryKeyword, &btmp ) )
SetGridVisibility( btmp );
int itmp;
if( cfg->Read( m_FrameName + GridColorEntryKeyword, &itmp ) )
SetGridColor( itmp );
cfg->Read( m_FrameName + LastGridSizeId, &m_LastGridSizeId, 0L );
}
void EDA_DRAW_FRAME::SaveSettings()
{
wxASSERT( wxGetApp().GetSettings() != NULL );
wxConfig* cfg = wxGetApp().GetSettings();
EDA_BASE_FRAME::SaveSettings();
cfg->Write( m_FrameName + CursorShapeEntryKeyword, m_cursorShape );
cfg->Write( m_FrameName + ShowGridEntryKeyword, IsGridVisible() );
cfg->Write( m_FrameName + GridColorEntryKeyword, GetGridColor() );
cfg->Write( m_FrameName + LastGridSizeId, ( long ) m_LastGridSizeId );
}
void EDA_DRAW_FRAME::AppendMsgPanel( const wxString& textUpper,
const wxString& textLower,
int color, int pad )
{
if( m_messagePanel == NULL )
return;
m_messagePanel->AppendMessage( textUpper, textLower, color, pad );
}
void EDA_DRAW_FRAME::ClearMsgPanel( void )
{
if( m_messagePanel == NULL )
return;
m_messagePanel->EraseMsgBox();
}
wxString EDA_DRAW_FRAME::CoordinateToString( int aValue, bool aConvertToMils )
{
return ::CoordinateToString( aValue, m_internalUnits, aConvertToMils );
}
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