244 lines
8.2 KiB
C++
244 lines
8.2 KiB
C++
/*
|
|
* This program source code file is part of KICAD, a free EDA CAD application.
|
|
*
|
|
* Copyright (C) 2012 Torsten Hueter, torstenhtr <at> gmx.de
|
|
* Copyright (C) 2012 Kicad Developers, see change_log.txt for contributors.
|
|
*
|
|
* Graphics Abstraction Layer (GAL) - base class
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include <wx/log.h>
|
|
|
|
#include <gal/graphics_abstraction_layer.h>
|
|
#include <gal/definitions.h>
|
|
|
|
using namespace KIGFX;
|
|
|
|
GAL::GAL() :
|
|
strokeFont( this )
|
|
{
|
|
// Set the default values for the internal variables
|
|
SetIsFill( false );
|
|
SetIsStroke( true );
|
|
SetFillColor( COLOR4D( 0.0, 0.0, 0.0, 0.0 ) );
|
|
SetStrokeColor( COLOR4D( 1.0, 1.0, 1.0, 1.0 ) );
|
|
SetZoomFactor( 1.0 );
|
|
SetDepthRange( VECTOR2D( GAL::MIN_DEPTH, GAL::MAX_DEPTH ) );
|
|
SetFlip( false, false );
|
|
SetLineWidth( 1.0 );
|
|
|
|
// Set grid defaults
|
|
SetGridVisibility( true );
|
|
SetGridStyle( GRID_STYLE_LINES );
|
|
SetGridOriginMarkerSize( 15 );
|
|
SetGridDrawThreshold( 10 );
|
|
SetCoarseGrid( 10 );
|
|
SetGridLineWidth( 0.5 );
|
|
|
|
// Initialize the cursor shape
|
|
SetCursorColor( COLOR4D( 1.0, 1.0, 1.0, 1.0 ) );
|
|
SetCursorSize( 80 );
|
|
SetCursorEnabled( false );
|
|
|
|
strokeFont.LoadNewStrokeFont( newstroke_font, newstroke_font_bufsize );
|
|
}
|
|
|
|
|
|
GAL::~GAL()
|
|
{
|
|
}
|
|
|
|
|
|
void GAL::SetTextAttributes( const EDA_TEXT* aText )
|
|
{
|
|
strokeFont.SetGlyphSize( VECTOR2D( aText->GetSize() ) );
|
|
strokeFont.SetHorizontalJustify( aText->GetHorizJustify() );
|
|
strokeFont.SetVerticalJustify( aText->GetVertJustify() );
|
|
strokeFont.SetBold( aText->IsBold() );
|
|
strokeFont.SetItalic( aText->IsItalic() );
|
|
strokeFont.SetMirrored( aText->IsMirrored() );
|
|
}
|
|
|
|
|
|
void GAL::ComputeWorldScreenMatrix()
|
|
{
|
|
ComputeWorldScale();
|
|
|
|
worldScreenMatrix.SetIdentity();
|
|
|
|
MATRIX3x3D translation;
|
|
translation.SetIdentity();
|
|
translation.SetTranslation( 0.5 * screenSize );
|
|
|
|
MATRIX3x3D scale;
|
|
scale.SetIdentity();
|
|
scale.SetScale( VECTOR2D( worldScale, worldScale ) );
|
|
|
|
MATRIX3x3D flip;
|
|
flip.SetIdentity();
|
|
flip.SetScale( VECTOR2D( flipX, flipY ) );
|
|
|
|
MATRIX3x3D lookat;
|
|
lookat.SetIdentity();
|
|
lookat.SetTranslation( -lookAtPoint );
|
|
|
|
worldScreenMatrix = translation * flip * scale * lookat * worldScreenMatrix;
|
|
screenWorldMatrix = worldScreenMatrix.Inverse();
|
|
}
|
|
|
|
|
|
void GAL::DrawGrid()
|
|
{
|
|
if( !gridVisibility )
|
|
return;
|
|
|
|
SetTarget( TARGET_NONCACHED );
|
|
|
|
// Draw the origin marker
|
|
double origSize = static_cast<double>( gridOriginMarkerSize ) / worldScale;
|
|
SetLayerDepth( GAL::GRID_DEPTH );
|
|
SetIsFill( false );
|
|
SetIsStroke( true );
|
|
SetStrokeColor( COLOR4D( 1.0, 1.0, 1.0, 1.0 ) );
|
|
SetLineWidth( gridLineWidth / worldScale );
|
|
DrawLine( gridOrigin + VECTOR2D( -origSize, -origSize ),
|
|
gridOrigin + VECTOR2D( origSize, origSize ) );
|
|
DrawLine( gridOrigin + VECTOR2D( -origSize, origSize ),
|
|
gridOrigin + VECTOR2D( origSize, -origSize ) );
|
|
DrawCircle( gridOrigin, origSize * 0.7 );
|
|
|
|
// Draw the grid
|
|
// For the drawing the start points, end points and increments have
|
|
// to be calculated in world coordinates
|
|
VECTOR2D worldStartPoint = screenWorldMatrix * VECTOR2D( 0.0, 0.0 );
|
|
VECTOR2D worldEndPoint = screenWorldMatrix * screenSize;
|
|
|
|
int gridScreenSizeDense = round( gridSize.x * worldScale );
|
|
int gridScreenSizeCoarse = round( gridSize.x * static_cast<double>( gridTick ) * worldScale );
|
|
|
|
// Compute the line marker or point radius of the grid
|
|
double marker = 2.0 * gridLineWidth / worldScale;
|
|
double doubleMarker = 2.0 * marker;
|
|
|
|
// Check if the grid would not be too dense
|
|
if( std::max( gridScreenSizeDense, gridScreenSizeCoarse ) > gridDrawThreshold )
|
|
{
|
|
// Compute grid variables
|
|
int gridStartX = round( worldStartPoint.x / gridSize.x );
|
|
int gridEndX = round( worldEndPoint.x / gridSize.x );
|
|
int gridStartY = round( worldStartPoint.y / gridSize.y );
|
|
int gridEndY = round( worldEndPoint.y / gridSize.y );
|
|
|
|
// Swap the coordinates, if they have not the right order
|
|
SWAP( gridEndX, <, gridStartX );
|
|
SWAP( gridEndY, <, gridStartY );
|
|
|
|
// Correct the index, else some lines are not correctly painted
|
|
gridStartX -= 1;
|
|
gridStartY -= 1;
|
|
gridEndX += 1;
|
|
gridEndY += 1;
|
|
|
|
// Draw the grid behind all other layers
|
|
SetLayerDepth( depthRange.y * 0.75 );
|
|
|
|
if( gridStyle == GRID_STYLE_LINES )
|
|
{
|
|
SetIsFill( false );
|
|
SetIsStroke( true );
|
|
SetStrokeColor( gridColor );
|
|
|
|
// Now draw the grid, every coarse grid line gets the double width
|
|
for( int j = gridStartY; j < gridEndY; j += 1 )
|
|
{
|
|
if( j % gridTick == 0 && gridScreenSizeDense > gridDrawThreshold )
|
|
SetLineWidth( doubleMarker );
|
|
else
|
|
SetLineWidth( marker );
|
|
|
|
if( ( j % gridTick == 0 && gridScreenSizeCoarse > gridDrawThreshold )
|
|
|| gridScreenSizeDense > gridDrawThreshold )
|
|
{
|
|
drawGridLine( VECTOR2D( gridStartX * gridSize.x, j * gridSize.y ),
|
|
VECTOR2D( gridEndX * gridSize.x, j * gridSize.y ) );
|
|
}
|
|
}
|
|
|
|
for( int i = gridStartX; i < gridEndX; i += 1 )
|
|
{
|
|
if( i % gridTick == 0 && gridScreenSizeDense > gridDrawThreshold )
|
|
SetLineWidth( doubleMarker );
|
|
else
|
|
SetLineWidth( marker );
|
|
|
|
if( ( i % gridTick == 0 && gridScreenSizeCoarse > gridDrawThreshold )
|
|
|| gridScreenSizeDense > gridDrawThreshold )
|
|
{
|
|
drawGridLine( VECTOR2D( i * gridSize.x, gridStartY * gridSize.y ),
|
|
VECTOR2D( i * gridSize.x, gridEndY * gridSize.y ) );
|
|
}
|
|
}
|
|
}
|
|
else // Dotted grid
|
|
{
|
|
bool tickX, tickY;
|
|
SetIsFill( true );
|
|
SetIsStroke( false );
|
|
SetFillColor( gridColor );
|
|
|
|
for( int j = gridStartY; j < gridEndY; j += 1 )
|
|
{
|
|
if( j % gridTick == 0 && gridScreenSizeDense > gridDrawThreshold )
|
|
tickY = true;
|
|
else
|
|
tickY = false;
|
|
|
|
for( int i = gridStartX; i < gridEndX; i += 1 )
|
|
{
|
|
if( i % gridTick == 0 && gridScreenSizeDense > gridDrawThreshold )
|
|
tickX = true;
|
|
else
|
|
tickX = false;
|
|
|
|
if( tickX || tickY || gridScreenSizeDense > gridDrawThreshold )
|
|
{
|
|
double radius = ( tickX && tickY ) ? doubleMarker : marker;
|
|
DrawRectangle( VECTOR2D( i * gridSize.x - radius,
|
|
j * gridSize.y - radius ),
|
|
VECTOR2D( i * gridSize.x + radius,
|
|
j * gridSize.y + radius ) );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
VECTOR2D GAL::GetGridPoint( VECTOR2D aPoint ) const
|
|
{
|
|
VECTOR2D pointWorld = ToWorld( aPoint );
|
|
|
|
pointWorld.x = round( pointWorld.x / gridSize.x ) * gridSize.x;
|
|
pointWorld.y = round( pointWorld.y / gridSize.y ) * gridSize.y;
|
|
|
|
return ToScreen( pointWorld );
|
|
}
|