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kicad/3d-viewer/3d_canvas.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 1992-2016 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 3d_canvas.cpp
*/
#include <fctsys.h>
#include <trigo.h>
#include <project.h>
#include <gestfich.h>
#include <wx/image.h>
#if !wxUSE_GLCANVAS
#error Please set wxUSE_GLCANVAS to 1 in setup.h.
#endif
#include <wx/dataobj.h>
#include <wx/clipbrd.h>
#include <wx/wupdlock.h>
#ifdef __WINDOWS__
#include <GL/glew.h> // must be included before gl.h
#endif
#include <3d_viewer.h>
#include <3d_canvas.h>
#include <info3d_visu.h>
#include <trackball.h>
#include <3d_viewer_id.h>
#include <gl_context_mgr.h>
#include <textures/text_silk.h>
#include <textures/text_pcb.h>
static const double DELTA_MOVE_STEP = 0.7;
/*
* EDA_3D_CANVAS implementation
*/
BEGIN_EVENT_TABLE( EDA_3D_CANVAS, wxGLCanvas )
EVT_PAINT( EDA_3D_CANVAS::OnPaint )
// key event:
EVT_CHAR( EDA_3D_CANVAS::OnChar )
// mouse events
EVT_RIGHT_DOWN( EDA_3D_CANVAS::OnRightClick )
EVT_MOUSEWHEEL( EDA_3D_CANVAS::OnMouseWheel )
#if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
EVT_MAGNIFY( EDA_3D_CANVAS::OnMagnify )
#endif
EVT_MOTION( EDA_3D_CANVAS::OnMouseMove )
// other events
EVT_ERASE_BACKGROUND( EDA_3D_CANVAS::OnEraseBackground )
EVT_MENU_RANGE( ID_POPUP_3D_VIEW_START, ID_POPUP_3D_VIEW_END, EDA_3D_CANVAS::OnPopUpMenu )
END_EVENT_TABLE()
// Define an invalid value for some unsigned int indexes
#define INVALID_INDEX GL_INVALID_VALUE
EDA_3D_CANVAS::EDA_3D_CANVAS( EDA_3D_FRAME* parent, int* attribList ) :
wxGLCanvas( parent, wxID_ANY, attribList, wxDefaultPosition, wxDefaultSize,
wxFULL_REPAINT_ON_RESIZE )
{
m_init = false;
m_reportWarnings = true;
m_shadow_init = false;
// set an invalid value to not yet initialized indexes managing
// textures created to enhance 3D rendering
m_text_pcb = m_text_silk = INVALID_INDEX;
m_text_fake_shadow_front = INVALID_INDEX;
m_text_fake_shadow_back = INVALID_INDEX;
m_text_fake_shadow_board = INVALID_INDEX;
// position of the front and back layers
// (will be initialized to a better value later)
m_ZBottom = 0.0;
m_ZTop = 0.0;
m_lightPos = S3D_VERTEX(0.0f, 0.0f, 30.0f);
// Clear all gl list identifiers:
for( int ii = GL_ID_BEGIN; ii < GL_ID_END; ii++ )
m_glLists[ii] = 0;
// Explicitly create a new rendering context instance for this canvas.
m_glRC = GL_CONTEXT_MANAGER::Get().CreateCtx( this );
DisplayStatus();
}
EDA_3D_CANVAS::~EDA_3D_CANVAS()
{
GL_CONTEXT_MANAGER::Get().LockCtx( m_glRC );
ClearLists();
m_init = false;
// Free the list of parsers list
for( unsigned int i = 0; i < m_model_parsers_list.size(); i++ )
delete m_model_parsers_list[i];
GL_CONTEXT_MANAGER::Get().UnlockCtx( m_glRC );
GL_CONTEXT_MANAGER::Get().DestroyCtx( m_glRC );
}
void EDA_3D_CANVAS::ClearLists( int aGlList )
{
if( aGlList )
{
if( m_glLists[aGlList] > 0 )
glDeleteLists( m_glLists[aGlList], 1 );
m_glLists[aGlList] = 0;
return;
}
for( int ii = GL_ID_BEGIN; ii < GL_ID_END; ii++ )
{
if( m_glLists[ii] > 0 )
glDeleteLists( m_glLists[ii], 1 );
m_glLists[ii] = 0;
}
// When m_text_fake_shadow_??? is set to INVALID_INDEX, textures are not yet created.
if( m_text_fake_shadow_front != INVALID_INDEX )
glDeleteTextures( 1, &m_text_fake_shadow_front );
if( m_text_fake_shadow_back != INVALID_INDEX )
glDeleteTextures( 1, &m_text_fake_shadow_back );
if( m_text_fake_shadow_board != INVALID_INDEX )
glDeleteTextures( 1, &m_text_fake_shadow_board );
m_shadow_init = false;
}
void EDA_3D_CANVAS::OnChar( wxKeyEvent& event )
{
SetView3D( event.GetKeyCode() );
event.Skip();
}
void EDA_3D_CANVAS::SetView3D( int keycode )
{
int ii;
double delta_move = DELTA_MOVE_STEP * GetPrm3DVisu().m_Zoom;
switch( keycode )
{
case WXK_LEFT:
m_draw3dOffset.x -= delta_move;
break;
case WXK_RIGHT:
m_draw3dOffset.x += delta_move;
break;
case WXK_UP:
m_draw3dOffset.y += delta_move;
break;
case WXK_DOWN:
m_draw3dOffset.y -= delta_move;
break;
case WXK_HOME:
GetPrm3DVisu().m_Zoom = 1.0;
m_draw3dOffset.x = m_draw3dOffset.y = 0;
trackball( GetPrm3DVisu().m_Quat, 0.0, 0.0, 0.0, 0.0 );
break;
case WXK_END:
break;
case WXK_F1:
GetPrm3DVisu().m_Zoom /= 1.4;
if( GetPrm3DVisu().m_Zoom <= 0.01 )
GetPrm3DVisu().m_Zoom = 0.01;
break;
case WXK_F2:
GetPrm3DVisu().m_Zoom *= 1.4;
break;
case '+':
break;
case '-':
break;
case 'r':
case 'R':
m_draw3dOffset.x = m_draw3dOffset.y = 0;
for( ii = 0; ii < 4; ii++ )
GetPrm3DVisu().m_Rot[ii] = 0.0;
trackball( GetPrm3DVisu().m_Quat, 0.0, 0.0, 0.0, 0.0 );
break;
case 'x':
for( ii = 0; ii < 4; ii++ )
GetPrm3DVisu().m_Rot[ii] = 0.0;
trackball( GetPrm3DVisu().m_Quat, 0.0, 0.0, 0.0, 0.0 );
GetPrm3DVisu().m_ROTZ = -90;
GetPrm3DVisu().m_ROTX = -90;
break;
case 'X':
for( ii = 0; ii < 4; ii++ )
GetPrm3DVisu().m_Rot[ii] = 0.0;
trackball( GetPrm3DVisu().m_Quat, 0.0, 0.0, 0.0, 0.0 );
GetPrm3DVisu().m_ROTZ = 90;
GetPrm3DVisu().m_ROTX = -90;
break;
case 'y':
for( ii = 0; ii < 4; ii++ )
GetPrm3DVisu().m_Rot[ii] = 0.0;
trackball( GetPrm3DVisu().m_Quat, 0.0, 0.0, 0.0, 0.0 );
GetPrm3DVisu().m_ROTX = -90;
break;
case 'Y':
for( ii = 0; ii < 4; ii++ )
GetPrm3DVisu().m_Rot[ii] = 0.0;
trackball( GetPrm3DVisu().m_Quat, 0.0, 0.0, 0.0, 0.0 );
GetPrm3DVisu().m_ROTX = -90;
GetPrm3DVisu().m_ROTZ = -180;
break;
case 'z':
for( ii = 0; ii < 4; ii++ )
GetPrm3DVisu().m_Rot[ii] = 0.0;
trackball( GetPrm3DVisu().m_Quat, 0.0, 0.0, 0.0, 0.0 );
break;
case 'Z':
for( ii = 0; ii < 4; ii++ )
GetPrm3DVisu().m_Rot[ii] = 0.0;
trackball( GetPrm3DVisu().m_Quat, 0.0, 0.0, 0.0, 0.0 );
GetPrm3DVisu().m_ROTX = -180;
break;
default:
return;
}
DisplayStatus();
Refresh( false );
}
void EDA_3D_CANVAS::OnMouseWheel( wxMouseEvent& event )
{
double delta = DELTA_MOVE_STEP * GetPrm3DVisu().m_Zoom;
if ( GetPrm3DVisu().GetFlag( FL_MOUSEWHEEL_PANNING ) )
delta *= 0.05 * event.GetWheelRotation();
else
if ( event.GetWheelRotation() < 0 )
delta = -delta;
if( GetPrm3DVisu().GetFlag( FL_MOUSEWHEEL_PANNING ) )
{
if( event.GetWheelAxis() == wxMOUSE_WHEEL_HORIZONTAL )
m_draw3dOffset.x -= delta;
else
m_draw3dOffset.y -= delta;
}
else if( event.ShiftDown() )
{
m_draw3dOffset.y -= delta;
}
else if( event.ControlDown() )
{
m_draw3dOffset.x += delta;
}
else
{
if( event.GetWheelRotation() > 0 )
{
GetPrm3DVisu().m_Zoom /= 1.4;
if( GetPrm3DVisu().m_Zoom <= 0.01 )
GetPrm3DVisu().m_Zoom = 0.01;
}
else
GetPrm3DVisu().m_Zoom *= 1.4;
}
DisplayStatus();
Refresh( false );
GetPrm3DVisu().m_Beginx = event.GetX();
GetPrm3DVisu().m_Beginy = event.GetY();
}
#if wxCHECK_VERSION( 3, 1, 0 ) || defined( USE_OSX_MAGNIFY_EVENT )
void EDA_3D_CANVAS::OnMagnify( wxMouseEvent& event )
{
double magnification = ( event.GetMagnification() + 1.0f );
GetPrm3DVisu().m_Zoom /= magnification;
if( GetPrm3DVisu().m_Zoom <= 0.01 )
{
GetPrm3DVisu().m_Zoom = 0.01;
}
DisplayStatus();
Refresh( false );
}
#endif
void EDA_3D_CANVAS::OnMouseMove( wxMouseEvent& event )
{
wxSize size( GetClientSize() );
double spin_quat[4];
if( event.Dragging() )
{
if( event.LeftIsDown() )
{
/* drag in progress, simulate trackball */
trackball( spin_quat,
(2.0 * GetPrm3DVisu().m_Beginx - size.x) / size.x,
(size.y - 2.0 * GetPrm3DVisu().m_Beginy) / size.y,
( 2.0 * event.GetX() - size.x) / size.x,
( size.y - 2.0 * event.GetY() ) / size.y );
add_quats( spin_quat, GetPrm3DVisu().m_Quat, GetPrm3DVisu().m_Quat );
}
else if( event.MiddleIsDown() )
{
/* middle button drag -> pan */
/* Current zoom and an additional factor are taken into account
* for the amount of panning. */
const double PAN_FACTOR = 8.0 * GetPrm3DVisu().m_Zoom;
m_draw3dOffset.x -= PAN_FACTOR *
( GetPrm3DVisu().m_Beginx - event.GetX() ) / size.x;
m_draw3dOffset.y -= PAN_FACTOR *
(event.GetY() - GetPrm3DVisu().m_Beginy) / size.y;
}
/* orientation has changed, redraw mesh */
DisplayStatus();
Refresh( false );
}
GetPrm3DVisu().m_Beginx = event.GetX();
GetPrm3DVisu().m_Beginy = event.GetY();
}
void EDA_3D_CANVAS::OnRightClick( wxMouseEvent& event )
{
wxPoint pos;
wxMenu PopUpMenu;
pos.x = event.GetX();
pos.y = event.GetY();
wxMenuItem* item = new wxMenuItem( &PopUpMenu, ID_POPUP_ZOOMIN, _( "Zoom +" ) );
item->SetBitmap( KiBitmap( zoom_in_xpm ));
PopUpMenu.Append( item );
item = new wxMenuItem( &PopUpMenu, ID_POPUP_ZOOMOUT, _( "Zoom -" ) );
item->SetBitmap( KiBitmap( zoom_out_xpm ));
PopUpMenu.Append( item );
PopUpMenu.AppendSeparator();
item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_ZPOS, _( "Top View" ) );
item->SetBitmap( KiBitmap( axis3d_top_xpm ));
PopUpMenu.Append( item );
item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_ZNEG, _( "Bottom View" ) );
item->SetBitmap( KiBitmap( axis3d_bottom_xpm ));
PopUpMenu.Append( item );
PopUpMenu.AppendSeparator();
item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_XPOS, _( "Right View" ) );
item->SetBitmap( KiBitmap( axis3d_right_xpm ));
PopUpMenu.Append( item );
item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_XNEG, _( "Left View" ) );
item->SetBitmap( KiBitmap( axis3d_left_xpm ));
PopUpMenu.Append( item );
PopUpMenu.AppendSeparator();
item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_YPOS, _( "Front View" ) );
item->SetBitmap( KiBitmap( axis3d_front_xpm ));
PopUpMenu.Append( item );
item = new wxMenuItem( &PopUpMenu, ID_POPUP_VIEW_YNEG, _( "Back View" ) );
item->SetBitmap( KiBitmap( axis3d_back_xpm ));
PopUpMenu.Append( item );
PopUpMenu.AppendSeparator();
item = new wxMenuItem( &PopUpMenu, ID_POPUP_MOVE3D_LEFT, _( "Move left <-" ) );
item->SetBitmap( KiBitmap( left_xpm ));
PopUpMenu.Append( item );
item = new wxMenuItem( &PopUpMenu, ID_POPUP_MOVE3D_RIGHT, _( "Move right ->" ) );
item->SetBitmap( KiBitmap( right_xpm ));
PopUpMenu.Append( item );
item = new wxMenuItem( &PopUpMenu, ID_POPUP_MOVE3D_UP, _( "Move Up ^" ) );
item->SetBitmap( KiBitmap( up_xpm ));
PopUpMenu.Append( item );
item = new wxMenuItem( &PopUpMenu, ID_POPUP_MOVE3D_DOWN, _( "Move Down" ) );
item->SetBitmap( KiBitmap( down_xpm ));
PopUpMenu.Append( item );
PopupMenu( &PopUpMenu, pos );
}
void EDA_3D_CANVAS::OnPopUpMenu( wxCommandEvent& event )
{
int key = 0;
switch( event.GetId() )
{
case ID_POPUP_ZOOMIN:
key = WXK_F1;
break;
case ID_POPUP_ZOOMOUT:
key = WXK_F2;
break;
case ID_POPUP_VIEW_XPOS:
key = 'x';
break;
case ID_POPUP_VIEW_XNEG:
key = 'X';
break;
case ID_POPUP_VIEW_YPOS:
key = 'y';
break;
case ID_POPUP_VIEW_YNEG:
key = 'Y';
break;
case ID_POPUP_VIEW_ZPOS:
key = 'z';
break;
case ID_POPUP_VIEW_ZNEG:
key = 'Z';
break;
case ID_POPUP_MOVE3D_LEFT:
key = WXK_LEFT;
break;
case ID_POPUP_MOVE3D_RIGHT:
key = WXK_RIGHT;
break;
case ID_POPUP_MOVE3D_UP:
key = WXK_UP;
break;
case ID_POPUP_MOVE3D_DOWN:
key = WXK_DOWN;
break;
default:
return;
}
SetView3D( key );
}
void EDA_3D_CANVAS::DisplayStatus()
{
wxString msg;
msg.Printf( wxT( "dx %3.2f" ), m_draw3dOffset.x );
Parent()->SetStatusText( msg, 1 );
msg.Printf( wxT( "dy %3.2f" ), m_draw3dOffset.y );
Parent()->SetStatusText( msg, 2 );
msg.Printf( _( "Zoom: %3.1f" ), 45 * GetPrm3DVisu().m_Zoom );
Parent()->SetStatusText( msg, 3 );
}
void EDA_3D_CANVAS::OnPaint( wxPaintEvent& event )
{
wxPaintDC dc( this );
Redraw();
event.Skip();
}
void EDA_3D_CANVAS::OnEraseBackground( wxEraseEvent& event )
{
// Do nothing, to avoid flashing.
}
typedef struct s_sImage
{
unsigned int width;
unsigned int height;
unsigned int bytes_per_pixel; /* 2:RGB16, 3:RGB, 4:RGBA */
unsigned char pixel_data[64 * 64 * 4 + 1];
}tsImage;
GLuint load_and_generate_texture( tsImage *image )
{
GLuint texture;
glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
glPixelStorei (GL_PACK_ALIGNMENT, 1);
glGenTextures( 1, &texture );
glBindTexture( GL_TEXTURE_2D, texture );
gluBuild2DMipmaps( GL_TEXTURE_2D, GL_RGBA, image->width, image->height,
GL_RGBA, GL_UNSIGNED_BYTE, image->pixel_data );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameterf( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
return texture;
}
void EDA_3D_CANVAS::InitGL()
{
if( !m_init )
{
m_init = true;
m_text_pcb = load_and_generate_texture( (tsImage *)&text_pcb );
m_text_silk = load_and_generate_texture( (tsImage *)&text_silk );
GetPrm3DVisu().m_Zoom = 1.0;
m_ZBottom = 1.0;
m_ZTop = 10.0;
glDisable( GL_CULL_FACE ); // show back faces
glEnable( GL_DEPTH_TEST ); // Enable z-buffering
glEnable( GL_ALPHA_TEST );
glEnable( GL_LINE_SMOOTH );
// glEnable(GL_POLYGON_SMOOTH); // creates issues with some graphic cards
glEnable( GL_NORMALIZE );
glEnable( GL_COLOR_MATERIAL );
glColorMaterial( GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE );
// speedups
//glEnable( GL_DITHER );
glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_DONT_CARE );
glHint( GL_LINE_SMOOTH_HINT, GL_NICEST );
glHint( GL_POLYGON_SMOOTH_HINT, GL_NICEST );
// Initialize alpha blending function.
glEnable( GL_BLEND );
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA );
}
}
void EDA_3D_CANVAS::SetLights()
{
// activate light. the source is above the xy plane, at source_pos
GLfloat source_pos[4] = { m_lightPos.x, m_lightPos.y, m_lightPos.z, 0.0f };
GLfloat light_color[4]; // color of lights (RGBA values)
light_color[3] = 1.0;
// Light above the xy plane
light_color[0] = light_color[1] = light_color[2] = 0.0;
glLightfv( GL_LIGHT0, GL_AMBIENT, light_color );
light_color[0] = light_color[1] = light_color[2] = 1.0;
glLightfv( GL_LIGHT0, GL_DIFFUSE, light_color );
light_color[0] = light_color[1] = light_color[2] = 1.0;
glLightfv( GL_LIGHT0, GL_SPECULAR, light_color );
glLightfv( GL_LIGHT0, GL_POSITION, source_pos );
light_color[0] = light_color[1] = light_color[2] = 0.2;
glLightModelfv( GL_LIGHT_MODEL_AMBIENT, light_color );
glLightModeli( GL_LIGHT_MODEL_TWO_SIDE, GL_FALSE );
glEnable( GL_LIGHT0 ); // White spot on Z axis ( top )
glEnable( GL_LIGHTING );
}
void EDA_3D_CANVAS::TakeScreenshot( wxCommandEvent& event )
{
static wxFileName fn; // Remember path between saves during this session only.
wxString FullFileName;
wxString file_ext, mask;
bool fmt_is_jpeg = false;
// First time path is set to the project path.
if( !fn.IsOk() )
fn = Parent()->Prj().GetProjectFullName();
if( event.GetId() == ID_MENU_SCREENCOPY_JPEG )
fmt_is_jpeg = true;
if( event.GetId() != ID_TOOL_SCREENCOPY_TOCLIBBOARD )
{
file_ext = fmt_is_jpeg ? wxT( "jpg" ) : wxT( "png" );
mask = wxT( "*." ) + file_ext;
fn.SetExt( file_ext );
FullFileName = EDA_FILE_SELECTOR( _( "3D Image File Name:" ), fn.GetPath(),
fn.GetFullName(), file_ext, mask, this,
wxFD_SAVE | wxFD_OVERWRITE_PROMPT, true );
if( FullFileName.IsEmpty() )
return;
fn = FullFileName;
// Be sure the screen area destroyed by the file dialog is redrawn before making
// a screen copy.
// Without this call, under Linux the screen refresh is made to late.
wxYield();
}
struct viewport_params
{
GLint originx;
GLint originy;
GLint x;
GLint y;
} viewport;
// Be sure we have the latest 3D view (remember 3D view is buffered)
Refresh();
wxYield();
// Build image from the 3D buffer
wxWindowUpdateLocker noUpdates( this );
glGetIntegerv( GL_VIEWPORT, (GLint*) &viewport );
unsigned char* pixelbuffer = (unsigned char*) malloc( viewport.x * viewport.y * 3 );
unsigned char* alphabuffer = (unsigned char*) malloc( viewport.x * viewport.y );
wxImage image_3d( viewport.x, viewport.y );
glPixelStorei( GL_PACK_ALIGNMENT, 1 );
glReadBuffer( GL_BACK_LEFT );
glReadPixels( viewport.originx, viewport.originy,
viewport.x, viewport.y,
GL_RGB, GL_UNSIGNED_BYTE, pixelbuffer );
glReadPixels( viewport.originx, viewport.originy,
viewport.x, viewport.y,
GL_ALPHA, GL_UNSIGNED_BYTE, alphabuffer );
image_3d.SetData( pixelbuffer );
image_3d.SetAlpha( alphabuffer );
image_3d = image_3d.Mirror( false );
wxBitmap bitmap( image_3d );
if( event.GetId() == ID_TOOL_SCREENCOPY_TOCLIBBOARD )
{
if( wxTheClipboard->Open() )
{
wxBitmapDataObject* dobjBmp = new wxBitmapDataObject( bitmap );
if( !wxTheClipboard->SetData( dobjBmp ) )
wxMessageBox( _( "Failed to copy image to clipboard" ) );
wxTheClipboard->Flush(); /* the data in clipboard will stay
* available after the application exits */
wxTheClipboard->Close();
}
}
else
{
wxImage image = bitmap.ConvertToImage();
if( !image.SaveFile( FullFileName,
fmt_is_jpeg ? wxBITMAP_TYPE_JPEG : wxBITMAP_TYPE_PNG ) )
wxMessageBox( _( "Can't save file" ) );
image.Destroy();
}
}
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