kicad/common/zoom.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) 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 zoom.cpp
*/
/*
* Manage zoom, grid step, and auto crop.
*/
#include <fctsys.h>
#include <id.h>
#include <class_drawpanel.h>
#include <class_draw_panel_gal.h>
#include <gal/graphics_abstraction_layer.h>
#include <view/view.h>
#include <class_base_screen.h>
* KIWAY Milestone A): Make major modules into DLL/DSOs. ! The initial testing of this commit should be done using a Debug build so that all the wxASSERT()s are enabled. Also, be sure and keep enabled the USE_KIWAY_DLLs option. The tree won't likely build without it. Turning it off is senseless anyways. If you want stable code, go back to a prior version, the one tagged with "stable". * Relocate all functionality out of the wxApp derivative into more finely targeted purposes: a) DLL/DSO specific b) PROJECT specific c) EXE or process specific d) configuration file specific data e) configuration file manipulations functions. All of this functionality was blended into an extremely large wxApp derivative and that was incompatible with the desire to support multiple concurrently loaded DLL/DSO's ("KIFACE")s and multiple concurrently open projects. An amazing amount of organization come from simply sorting each bit of functionality into the proper box. * Switch to wxConfigBase from wxConfig everywhere except instantiation. * Add classes KIWAY, KIFACE, KIFACE_I, SEARCH_STACK, PGM_BASE, PGM_KICAD, PGM_SINGLE_TOP, * Remove "Return" prefix on many function names. * Remove obvious comments from CMakeLists.txt files, and from else() and endif()s. * Fix building boost for use in a DSO on linux. * Remove some of the assumptions in the CMakeLists.txt files that windows had to be the host platform when building windows binaries. * Reduce the number of wxStrings being constructed at program load time via static construction. * Pass wxConfigBase* to all SaveSettings() and LoadSettings() functions so that these functions are useful even when the wxConfigBase comes from another source, as is the case in the KICAD_MANAGER_FRAME. * Move the setting of the KIPRJMOD environment variable into class PROJECT, so that it can be moved into a project variable soon, and out of FP_LIB_TABLE. * Add the KIWAY_PLAYER which is associated with a particular PROJECT, and all its child wxFrames and wxDialogs now have a Kiway() member function which returns a KIWAY& that that window tree branch is in support of. This is like wxWindows DNA in that child windows get this member with proper value at time of construction. * Anticipate some of the needs for milestones B) and C) and make code adjustments now in an effort to reduce work in those milestones. * No testing has been done for python scripting, since milestone C) has that being largely reworked and re-thought-out.
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#include <draw_frame.h>
#include <kicad_device_context.h>
#include <hotkeys_basic.h>
#include <menus_helpers.h>
#include <base_units.h>
void EDA_DRAW_FRAME::RedrawScreen( const wxPoint& aCenterPoint, bool aWarpPointer )
{
AdjustScrollBars( aCenterPoint );
// Move the mouse cursor to the on grid graphic cursor position
if( aWarpPointer )
m_canvas->MoveCursorToCrossHair();
m_canvas->Refresh();
m_canvas->Update();
}
void EDA_DRAW_FRAME::RedrawScreen2( const wxPoint& posBefore )
{
wxPoint dPos = posBefore - m_canvas->GetClientSize() / 2; // relative screen position to center before zoom
wxPoint newScreenPos = m_canvas->ToDeviceXY( GetCrossHairPosition() ); // screen position of crosshair after zoom
wxPoint newCenter = m_canvas->ToLogicalXY( newScreenPos - dPos );
AdjustScrollBars( newCenter );
m_canvas->Refresh();
m_canvas->Update();
}
void EDA_DRAW_FRAME::Zoom_Automatique( bool aWarpPointer )
{
BASE_SCREEN* screen = GetScreen();
// Set the best zoom and get center point.
// BestZoom() can compute an illegal zoom if the client window size
// is small, say because frame is not maximized. So use the clamping form
// of SetZoom():
double bestzoom = BestZoom();
screen->SetScalingFactor( bestzoom );
if( screen->m_FirstRedraw )
SetCrossHairPosition( GetScrollCenterPosition() );
if( !IsGalCanvasActive() )
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RedrawScreen( GetScrollCenterPosition(), aWarpPointer );
}
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/** Compute the zoom factor and the new draw offset to draw the
* selected area (Rect) in full window screen
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* @param Rect = selected area to show after zooming
*/
void EDA_DRAW_FRAME::Window_Zoom( EDA_RECT& Rect )
{
// Compute the best zoom
Rect.Normalize();
wxSize size = m_canvas->GetClientSize();
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// Use ceil to at least show the full rect
double scalex = (double) Rect.GetSize().x / size.x;
double bestscale = (double) Rect.GetSize().y / size.y;
bestscale = std::max( bestscale, scalex );
GetScreen()->SetScalingFactor( bestscale );
RedrawScreen( Rect.Centre(), true );
}
/**
* Function OnZoom
* Called from any zoom event (toolbar , hotkey or popup )
*/
void EDA_DRAW_FRAME::OnZoom( wxCommandEvent& event )
{
if( m_canvas == NULL )
return;
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int id = event.GetId();
bool zoom_at_cursor = false;
BASE_SCREEN* screen = GetScreen();
wxPoint center = GetScrollCenterPosition();
switch( id )
{
case ID_OFFCENTER_ZOOM_IN:
center = m_canvas->ToDeviceXY( GetCrossHairPosition() );
if( screen->SetPreviousZoom() )
RedrawScreen2( center );
break;
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case ID_POPUP_ZOOM_IN:
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zoom_at_cursor = true;
center = GetCrossHairPosition();
// fall thru
case ID_VIEWER_ZOOM_IN:
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case ID_ZOOM_IN:
if( screen->SetPreviousZoom() )
RedrawScreen( center, zoom_at_cursor );
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break;
case ID_OFFCENTER_ZOOM_OUT:
center = m_canvas->ToDeviceXY( GetCrossHairPosition() );
if( screen->SetNextZoom() )
RedrawScreen2( center );
break;
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case ID_POPUP_ZOOM_OUT:
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zoom_at_cursor = true;
center = GetCrossHairPosition();
// fall thru
case ID_VIEWER_ZOOM_OUT:
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case ID_ZOOM_OUT:
if( screen->SetNextZoom() )
RedrawScreen( center, zoom_at_cursor );
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break;
case ID_VIEWER_ZOOM_REDRAW:
case ID_POPUP_ZOOM_REDRAW:
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case ID_ZOOM_REDRAW:
m_canvas->Refresh();
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break;
case ID_POPUP_ZOOM_CENTER:
center = GetCrossHairPosition();
RedrawScreen( center, true );
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break;
case ID_POPUP_ZOOM_PAGE:
case ID_VIEWER_ZOOM_PAGE:
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case ID_ZOOM_PAGE:
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Zoom_Automatique( false );
break;
case ID_POPUP_ZOOM_SELECT:
break;
case ID_POPUP_CANCEL:
m_canvas->MoveCursorToCrossHair();
break;
default:
unsigned i;
i = id - ID_POPUP_ZOOM_LEVEL_START;
if( i >= screen->m_ZoomList.size() )
{
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wxLogDebug( wxT( "%s %d: index %d is outside the bounds of the zoom list." ),
__TFILE__, __LINE__, i );
return;
}
if( screen->SetZoom( screen->m_ZoomList[i] ) )
RedrawScreen( center, true );
}
UpdateStatusBar();
}
void EDA_DRAW_FRAME::SetNextZoom()
{
GetScreen()->SetNextZoom();
}
void EDA_DRAW_FRAME::SetPrevZoom()
{
GetScreen()->SetPreviousZoom();
}
/* add the zoom list menu the the MasterMenu.
* used in OnRightClick(wxMouseEvent& event)
*/
void EDA_DRAW_FRAME::AddMenuZoomAndGrid( wxMenu* MasterMenu )
{
int maxZoomIds;
int zoom;
wxString msg;
BASE_SCREEN* screen = m_canvas->GetScreen();
msg = AddHotkeyName( _( "Center" ), m_HotkeysZoomAndGridList, HK_ZOOM_CENTER );
AddMenuItem( MasterMenu, ID_POPUP_ZOOM_CENTER, msg, KiBitmap( zoom_center_on_screen_xpm ) );
msg = AddHotkeyName( _( "Zoom in" ), m_HotkeysZoomAndGridList, HK_ZOOM_IN );
AddMenuItem( MasterMenu, ID_POPUP_ZOOM_IN, msg, KiBitmap( zoom_in_xpm ) );
msg = AddHotkeyName( _( "Zoom out" ), m_HotkeysZoomAndGridList, HK_ZOOM_OUT );
AddMenuItem( MasterMenu, ID_POPUP_ZOOM_OUT, msg, KiBitmap( zoom_out_xpm ) );
msg = AddHotkeyName( _( "Redraw view" ), m_HotkeysZoomAndGridList, HK_ZOOM_REDRAW );
AddMenuItem( MasterMenu, ID_POPUP_ZOOM_REDRAW, msg, KiBitmap( zoom_redraw_xpm ) );
msg = AddHotkeyName( _( "Zoom auto" ), m_HotkeysZoomAndGridList, HK_ZOOM_AUTO );
AddMenuItem( MasterMenu, ID_POPUP_ZOOM_PAGE, msg, KiBitmap( zoom_fit_in_page_xpm ) );
wxMenu* zoom_choice = new wxMenu;
AddMenuItem( MasterMenu, zoom_choice,
ID_POPUP_ZOOM_SELECT, _( "Zoom select" ),
KiBitmap( zoom_selection_xpm ) );
zoom = screen->GetZoom();
maxZoomIds = ID_POPUP_ZOOM_LEVEL_END - ID_POPUP_ZOOM_LEVEL_START;
maxZoomIds = ( (size_t) maxZoomIds < screen->m_ZoomList.size() ) ?
maxZoomIds : screen->m_ZoomList.size();
// Populate zoom submenu.
for( int i = 0; i < maxZoomIds; i++ )
{
msg.Printf( wxT( "%.2f" ), m_zoomLevelCoeff / screen->m_ZoomList[i] );
zoom_choice->Append( ID_POPUP_ZOOM_LEVEL_START + i, _( "Zoom: " ) + msg,
wxEmptyString, wxITEM_CHECK );
if( zoom == screen->m_ZoomList[i] )
zoom_choice->Check( ID_POPUP_ZOOM_LEVEL_START + i, true );
}
// Create grid submenu as required.
if( screen->GetGridCount() )
{
wxMenu* gridMenu = new wxMenu;
AddMenuItem( MasterMenu, gridMenu, ID_POPUP_GRID_SELECT,
_( "Grid Select" ), KiBitmap( grid_select_xpm ) );
wxArrayString gridsList;
int icurr = screen->BuildGridsChoiceList( gridsList, g_UserUnit != INCHES );
for( unsigned i = 0; i < gridsList.GetCount(); i++ )
{
GRID_TYPE& grid = screen->GetGrid( i );
gridMenu->Append( grid.m_Id, gridsList[i], wxEmptyString, true );
if( (int)i == icurr )
gridMenu->Check( grid.m_Id, true );
}
}
MasterMenu->AppendSeparator();
AddMenuItem( MasterMenu, ID_POPUP_CANCEL, _( "Close" ), KiBitmap( cancel_xpm ) );
}