317 lines
9.6 KiB
C++
317 lines
9.6 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
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* Copyright (C) 1992-2011 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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/**
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* @file zoom.cpp
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*/
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/*
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* Manage zoom, grid step, and auto crop.
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*/
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#include <fctsys.h>
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#include <id.h>
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#include <class_drawpanel.h>
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#include <class_drawpanel_gal.h>
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#include <gal/graphics_abstraction_layer.h>
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#include <view/view.h>
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#include <class_base_screen.h>
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#include <wxstruct.h>
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#include <kicad_device_context.h>
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#include <hotkeys_basic.h>
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#include <menus_helpers.h>
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#include <base_units.h>
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void EDA_DRAW_FRAME::RedrawScreen( const wxPoint& aCenterPoint, bool aWarpPointer )
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{
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AdjustScrollBars( aCenterPoint );
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// Move the mouse cursor to the on grid graphic cursor position
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if( aWarpPointer )
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m_canvas->MoveCursorToCrossHair();
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RefreshCanvas();
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m_canvas->Update();
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}
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void EDA_DRAW_FRAME::RedrawScreen2( const wxPoint& posBefore )
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{
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wxPoint dPos = posBefore - m_canvas->GetClientSize() / 2; // relative screen position to center before zoom
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wxPoint newScreenPos = m_canvas->ToDeviceXY( GetScreen()->GetCrossHairPosition() ); // screen position of crosshair after zoom
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wxPoint newCenter = m_canvas->ToLogicalXY( newScreenPos - dPos );
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AdjustScrollBars( newCenter );
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RefreshCanvas();
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m_canvas->Update();
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}
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void EDA_DRAW_FRAME::RefreshCanvas()
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{
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if( m_galCanvasActive )
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m_galCanvas->Refresh();
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else
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m_canvas->Refresh();
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}
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void EDA_DRAW_FRAME::Zoom_Automatique( bool aWarpPointer )
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{
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BASE_SCREEN* screen = GetScreen();
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// Set the best zoom and get center point.
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// BestZoom() can compute an illegal zoom if the client window size
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// is small, say because frame is not maximized. So use the clamping form
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// of SetZoom():
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double bestzoom = BestZoom();
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screen->SetScalingFactor( bestzoom );
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if( screen->m_FirstRedraw )
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screen->SetCrossHairPosition( screen->GetScrollCenterPosition() );
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if( !m_galCanvasActive )
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RedrawScreen( screen->GetScrollCenterPosition(), aWarpPointer );
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}
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/** Compute the zoom factor and the new draw offset to draw the
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* selected area (Rect) in full window screen
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* @param Rect = selected area to show after zooming
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*/
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void EDA_DRAW_FRAME::Window_Zoom( EDA_RECT& Rect )
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{
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// Compute the best zoom
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Rect.Normalize();
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wxSize size = m_canvas->GetClientSize();
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// Use ceil to at least show the full rect
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double scalex = (double) Rect.GetSize().x / size.x;
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double bestscale = (double) Rect.GetSize().y / size.y;
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bestscale = std::max( bestscale, scalex );
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GetScreen()->SetScalingFactor( bestscale );
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RedrawScreen( Rect.Centre(), true );
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}
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/**
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* Function OnZoom
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* Called from any zoom event (toolbar , hotkey or popup )
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*/
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void EDA_DRAW_FRAME::OnZoom( wxCommandEvent& event )
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{
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if( m_canvas == NULL )
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return;
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int id = event.GetId();
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bool zoom_at_cursor = false;
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BASE_SCREEN* screen = GetScreen();
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wxPoint center = screen->GetScrollCenterPosition();
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switch( id )
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{
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case ID_OFFCENTER_ZOOM_IN:
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center = m_canvas->ToDeviceXY( screen->GetCrossHairPosition() );
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if( screen->SetPreviousZoom() )
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RedrawScreen2( center );
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break;
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case ID_POPUP_ZOOM_IN:
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zoom_at_cursor = true;
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center = screen->GetCrossHairPosition();
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// fall thru
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case ID_ZOOM_IN:
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if( screen->SetPreviousZoom() )
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RedrawScreen( center, zoom_at_cursor );
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break;
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case ID_OFFCENTER_ZOOM_OUT:
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center = m_canvas->ToDeviceXY( screen->GetCrossHairPosition() );
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if( screen->SetNextZoom() )
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RedrawScreen2( center );
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break;
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case ID_POPUP_ZOOM_OUT:
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zoom_at_cursor = true;
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center = screen->GetCrossHairPosition();
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// fall thru
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case ID_ZOOM_OUT:
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if( screen->SetNextZoom() )
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RedrawScreen( center, zoom_at_cursor );
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break;
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case ID_ZOOM_REDRAW:
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RefreshCanvas();
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break;
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case ID_POPUP_ZOOM_CENTER:
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center = screen->GetCrossHairPosition();
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RedrawScreen( center, true );
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break;
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case ID_ZOOM_PAGE:
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Zoom_Automatique( false );
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break;
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case ID_POPUP_ZOOM_SELECT:
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break;
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case ID_POPUP_CANCEL:
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m_canvas->MoveCursorToCrossHair();
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break;
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default:
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unsigned i;
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i = id - ID_POPUP_ZOOM_LEVEL_START;
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if( i >= screen->m_ZoomList.size() )
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{
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wxLogDebug( wxT( "%s %d: index %d is outside the bounds of the zoom list." ),
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__TFILE__, __LINE__, i );
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return;
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}
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if( screen->SetZoom( screen->m_ZoomList[i] ) )
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RedrawScreen( center, true );
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}
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if( m_galCanvasActive )
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{
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// Apply computed view settings to GAL
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KiGfx::VIEW* view = m_galCanvas->GetView();
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KiGfx::GAL* gal = m_galCanvas->GetGAL();
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double zoomFactor = gal->GetWorldScale() / gal->GetZoomFactor();
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double zoom = 1.0 / ( zoomFactor * GetZoom() );
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view->SetScale( zoom );
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view->SetCenter( VECTOR2D( center ) );
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m_galCanvas->Refresh();
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}
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UpdateStatusBar();
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}
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/* add the zoom list menu the the MasterMenu.
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* used in OnRightClick(wxMouseEvent& event)
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*/
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void EDA_DRAW_FRAME::AddMenuZoomAndGrid( wxMenu* MasterMenu )
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{
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int maxZoomIds;
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int zoom;
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wxString msg;
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BASE_SCREEN* screen = m_canvas->GetScreen();
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msg = AddHotkeyName( _( "Center" ), m_HotkeysZoomAndGridList, HK_ZOOM_CENTER );
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AddMenuItem( MasterMenu, ID_POPUP_ZOOM_CENTER, msg, KiBitmap( zoom_center_on_screen_xpm ) );
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msg = AddHotkeyName( _( "Zoom in" ), m_HotkeysZoomAndGridList, HK_ZOOM_IN );
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AddMenuItem( MasterMenu, ID_POPUP_ZOOM_IN, msg, KiBitmap( zoom_in_xpm ) );
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msg = AddHotkeyName( _( "Zoom out" ), m_HotkeysZoomAndGridList, HK_ZOOM_OUT );
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AddMenuItem( MasterMenu, ID_POPUP_ZOOM_OUT, msg, KiBitmap( zoom_out_xpm ) );
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msg = AddHotkeyName( _( "Redraw view" ), m_HotkeysZoomAndGridList, HK_ZOOM_REDRAW );
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AddMenuItem( MasterMenu, ID_ZOOM_REDRAW, msg, KiBitmap( zoom_redraw_xpm ) );
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msg = AddHotkeyName( _( "Zoom auto" ), m_HotkeysZoomAndGridList, HK_ZOOM_AUTO );
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AddMenuItem( MasterMenu, ID_ZOOM_PAGE, msg, KiBitmap( zoom_fit_in_page_xpm ) );
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wxMenu* zoom_choice = new wxMenu;
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AddMenuItem( MasterMenu, zoom_choice,
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ID_POPUP_ZOOM_SELECT, _( "Zoom select" ),
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KiBitmap( zoom_selection_xpm ) );
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zoom = screen->GetZoom();
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maxZoomIds = ID_POPUP_ZOOM_LEVEL_END - ID_POPUP_ZOOM_LEVEL_START;
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maxZoomIds = ( (size_t) maxZoomIds < screen->m_ZoomList.size() ) ?
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maxZoomIds : screen->m_ZoomList.size();
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// Populate zoom submenu.
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for( int i = 0; i < maxZoomIds; i++ )
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{
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msg.Printf( wxT( "%g" ), screen->m_ZoomList[i] );
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zoom_choice->Append( ID_POPUP_ZOOM_LEVEL_START + i, _( "Zoom: " ) + msg,
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wxEmptyString, wxITEM_CHECK );
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if( zoom == screen->m_ZoomList[i] )
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zoom_choice->Check( ID_POPUP_ZOOM_LEVEL_START + i, true );
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}
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// Create grid submenu as required.
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if( screen->GetGridCount() )
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{
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wxMenu* gridMenu = new wxMenu;
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AddMenuItem( MasterMenu, gridMenu, ID_POPUP_GRID_SELECT,
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_( "Grid Select" ), KiBitmap( grid_select_xpm ) );
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GRID_TYPE tmp;
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wxRealPoint grid = screen->GetGridSize();
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for( size_t i = 0; i < screen->GetGridCount(); i++ )
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{
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tmp = screen->GetGrid( i );
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double gridValueInch = To_User_Unit( INCHES, tmp.m_Size.x );
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double gridValue_mm = To_User_Unit( MILLIMETRES, tmp.m_Size.x );
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if( tmp.m_Id == ID_POPUP_GRID_USER )
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{
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msg = _( "User Grid" );
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}
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else
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{
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switch( g_UserUnit )
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{
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case INCHES:
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msg.Printf( wxT( "%.1f mils, (%.4f mm)" ),
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gridValueInch * 1000, gridValue_mm );
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break;
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case MILLIMETRES:
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msg.Printf( wxT( "%.4f mm, (%.1f mils)" ),
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gridValue_mm, gridValueInch * 1000 );
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break;
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case UNSCALED_UNITS:
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msg = wxT( "???" );
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break;
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}
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}
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gridMenu->Append( tmp.m_Id, msg, wxEmptyString, true );
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if( grid == tmp.m_Size )
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gridMenu->Check( tmp.m_Id, true );
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}
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}
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MasterMenu->AppendSeparator();
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AddMenuItem( MasterMenu, ID_POPUP_CANCEL, _( "Close" ), KiBitmap( cancel_xpm ) );
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}
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