realAscot/kicad-source
1
0
Fork 0
mirror of https://gitlab.com/kicad/code/kicad.git synced 2025-09-14 10:13:19 +02:00
Code Issues Packages Projects Releases Wiki Activity
kicad-source/pcbnew/class_pad_draw_functions.cpp
Jon Evans a52250a91e Change from EDA_COLOR_T to COLOR4D globally; arbitrary color support 
eeschema now supports arbitrary colors for all object types, and
pcbnew does in GAL canvas.  When switching from GAL to legacy canvas,
pcbnew will convert colors to the nearest legacy color.
2017-02-22 17:35:00 +01:00

819 lines
28 KiB
C++
Raw Blame History

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2016 Jean-Pierre Charras, jean-pierre.charras@ujf-grenoble.fr
* Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
* Copyright (C) 2012 Wayne Stambaugh <stambaughw@verizon.net>
* 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 class_pad_draw_functions.cpp
*/
#include <fctsys.h>
#include <gr_basic.h>
#include <common.h>
#include <trigo.h>
#include <class_pcb_screen.h>
#include <class_drawpanel.h>
#include <drawtxt.h>
#include <layers_id_colors_and_visibility.h>
#include <wxBasePcbFrame.h>
#include <pcbnew_id.h> // ID_TRACK_BUTT
#include <pcbnew.h>
#include <class_board.h>
#include <convert_basic_shapes_to_polygon.h>
/* uncomment this line to show this pad with its specfic size and color
* when it is not on copper layers, and only one solder mask layer or solder paste layer
* is displayed for this pad
* After testing this feature,I am not sure this is a good idea
* but the code is left here.
*/
//#define SHOW_PADMASK_REAL_SIZE_AND_COLOR
// Helper class to store parameters used to draw a pad
PAD_DRAWINFO::PAD_DRAWINFO()
{
m_DrawPanel = NULL;
m_DrawMode = GR_COPY;
m_Color = BLACK;
m_HoleColor = BLACK; // could be DARKGRAY;
m_NPHoleColor = YELLOW;
m_PadClearance = 0;
m_Display_padnum = true;
m_Display_netname = true;
m_ShowPadFilled = true;
m_ShowNCMark = true;
m_ShowNotPlatedHole = false;
m_IsPrinting = false;
}
void D_PAD::Draw( EDA_DRAW_PANEL* aPanel, wxDC* aDC, GR_DRAWMODE aDraw_mode,
const wxPoint& aOffset )
{
wxSize mask_margin; // margin (clearance) used for some non copper layers
#ifdef SHOW_PADMASK_REAL_SIZE_AND_COLOR
int showActualMaskSize = 0; /* Layer number if the actual pad size on mask layer can
* be displayed i.e. if only one layer is shown for this pad
* and this layer is a mask (solder mask or solder paste
*/
#endif
if( m_Flags & DO_NOT_DRAW )
return;
PAD_DRAWINFO drawInfo;
drawInfo.m_Offset = aOffset;
/* We can show/hide pads from the layer manager.
* options are show/hide pads on front and/or back side of the board
* For through pads, we hide them only if both sides are hidden.
* smd pads on back are hidden for all layers (copper and technical layers)
* on back side of the board
* smd pads on front are hidden for all layers (copper and technical layers)
* on front side of the board
* ECO, edge and Draw layers and not considered
*/
BOARD* brd = GetBoard();
bool frontVisible = brd->IsElementVisible( PCB_VISIBLE( PAD_FR_VISIBLE ) );
bool backVisible = brd->IsElementVisible( PCB_VISIBLE( PAD_BK_VISIBLE ) );
if( !frontVisible && !backVisible )
return;
// If pad is only on front side (no layer on back side)
// and if hide front side pads is enabled, do not draw
if( !frontVisible && !( m_layerMask & LSET::BackMask() ).any() )
return;
// If pad is only on back side (no layer on front side)
// and if hide back side pads is enabled, do not draw
if( !backVisible && !( m_layerMask & LSET::FrontMask() ).any() )
return;
PCB_BASE_FRAME* frame = (PCB_BASE_FRAME*) aPanel->GetParent();
wxCHECK_RET( frame != NULL, wxT( "Panel has no parent frame window." ) );
DISPLAY_OPTIONS* displ_opts = (DISPLAY_OPTIONS*)frame->GetDisplayOptions();
PCB_SCREEN* screen = frame->GetScreen();
if( displ_opts && displ_opts->m_DisplayPadFill == SKETCH )
drawInfo.m_ShowPadFilled = false;
else
drawInfo.m_ShowPadFilled = true;
COLOR4D color = COLOR4D_BLACK;
if( m_layerMask[F_Cu] )
{
color = brd->GetVisibleElementColor( PAD_FR_VISIBLE );
}
if( m_layerMask[B_Cu] )
{
color = color.LegacyMix( brd->GetVisibleElementColor( PAD_BK_VISIBLE ) );
}
if( color == BLACK ) // Not on a visible copper layer (i.e. still nothing to show)
{
// If the pad is on only one tech layer, use the layer color else use DARKGRAY
LSET mask_non_copper_layers = m_layerMask & ~LSET::AllCuMask();
#ifdef SHOW_PADMASK_REAL_SIZE_AND_COLOR
mask_non_copper_layers &= brd->GetVisibleLayers();
#endif
LAYER_ID pad_layer = mask_non_copper_layers.ExtractLayer();
switch( (int) pad_layer )
{
case UNDEFINED_LAYER: // More than one layer
color = DARKGRAY;
break;
case UNSELECTED_LAYER: // Shouldn't really happen...
break;
default:
color = brd->GetLayerColor( pad_layer );
#ifdef SHOW_PADMASK_REAL_SIZE_AND_COLOR
showActualMaskSize = pad_layer;
#endif
}
}
// if SMD or connector pad and high contrast mode
if( ( aDraw_mode & GR_ALLOW_HIGHCONTRAST ) &&
( GetAttribute() == PAD_ATTRIB_SMD || GetAttribute() == PAD_ATTRIB_CONN ) &&
displ_opts && displ_opts->m_ContrastModeDisplay )
{
// when routing tracks
if( frame->GetToolId() == ID_TRACK_BUTT )
{
LAYER_ID routeTop = screen->m_Route_Layer_TOP;
LAYER_ID routeBot = screen->m_Route_Layer_BOTTOM;
// if routing between copper and component layers,
// or the current layer is one of said 2 external copper layers,
// then highlight only the current layer.
if( ( screen->m_Active_Layer == F_Cu || screen->m_Active_Layer == B_Cu ) ||
( routeTop==F_Cu && routeBot==B_Cu ) ||
( routeTop==B_Cu && routeBot==F_Cu )
)
{
if( !IsOnLayer( screen->m_Active_Layer ) )
color = COLOR4D( DARKDARKGRAY );
}
// else routing between an internal signal layer and some other
// layer. Grey out all PAD_ATTRIB_SMD pads not on current or the single
// selected external layer.
else if( !IsOnLayer( screen->m_Active_Layer )
&& !IsOnLayer( routeTop )
&& !IsOnLayer( routeBot ) )
{
color = COLOR4D( DARKDARKGRAY );
}
}
// when not edting tracks, show PAD_ATTRIB_SMD components not on active layer
// as greyed out
else
{
if( !IsOnLayer( screen->m_Active_Layer ) )
color = COLOR4D( DARKDARKGRAY );
}
}
#ifdef SHOW_PADMASK_REAL_SIZE_AND_COLOR
if( showActualMaskSize )
{
switch( showActualMaskSize )
{
case B_Mask:
case F_Mask:
mask_margin.x = mask_margin.y = GetSolderMaskMargin();
break;
case B_Paste:
case F_Paste:
mask_margin = GetSolderPasteMargin();
break;
default:
// Another layer which has no margin to handle
break;
}
}
#endif
// if Contrast mode is ON and a technical layer active, show pads on this
// layer so we can see pads on paste or solder layer and the size of the
// mask
if( ( aDraw_mode & GR_ALLOW_HIGHCONTRAST ) &&
displ_opts && displ_opts->m_ContrastModeDisplay && !IsCopperLayer( screen->m_Active_Layer ) )
{
if( IsOnLayer( screen->m_Active_Layer ) )
{
color = brd->GetLayerColor( screen->m_Active_Layer );
// In high contrast mode, and if the active layer is the mask
// layer shows the pad size with the mask clearance
switch( screen->m_Active_Layer )
{
case B_Mask:
case F_Mask:
mask_margin.x = mask_margin.y = GetSolderMaskMargin();
break;
case B_Paste:
case F_Paste:
mask_margin = GetSolderPasteMargin();
break;
default:
break;
}
}
else
color = DARKDARKGRAY;
}
if( ( aDraw_mode & GR_HIGHLIGHT ) && !( aDraw_mode & GR_AND ) )
color.SetToLegacyHighlightColor();
bool DisplayIsol = displ_opts && displ_opts->m_DisplayPadIsol;
if( !( m_layerMask & LSET::AllCuMask() ).any() )
DisplayIsol = false;
if( ( GetAttribute() == PAD_ATTRIB_HOLE_NOT_PLATED ) &&
brd->IsElementVisible( NON_PLATED_VISIBLE ) )
{
drawInfo.m_ShowNotPlatedHole = true;
drawInfo.m_NPHoleColor = brd->GetVisibleElementColor( NON_PLATED_VISIBLE );
}
drawInfo.m_DrawMode = aDraw_mode;
drawInfo.m_Color = color;
drawInfo.m_DrawPanel = aPanel;
drawInfo.m_Mask_margin = mask_margin;
drawInfo.m_ShowNCMark = brd->IsElementVisible( PCB_VISIBLE( NO_CONNECTS_VISIBLE ) );
drawInfo.m_IsPrinting = screen->m_IsPrinting;
color.a = 0.666;
/* Get the pad clearance. This has a meaning only for Pcbnew.
* for CvPcb GetClearance() creates debug errors because
* there is no net classes so a call to GetClearance() is made only when
* needed (never needed in CvPcb)
*/
drawInfo.m_PadClearance = DisplayIsol ? GetClearance() : 0;
// Draw the pad number
if( displ_opts && !displ_opts->m_DisplayPadNum )
drawInfo.m_Display_padnum = false;
if( displ_opts &&
(( displ_opts ->m_DisplayNetNamesMode == 0 ) || ( displ_opts->m_DisplayNetNamesMode == 2 )) )
drawInfo.m_Display_netname = false;
// Display net names is restricted to pads that are on the active layer
// in high contrast mode display
if( ( aDraw_mode & GR_ALLOW_HIGHCONTRAST ) &&
!IsOnLayer( screen->m_Active_Layer ) && displ_opts && displ_opts->m_ContrastModeDisplay )
drawInfo.m_Display_netname = false;
DrawShape( aPanel->GetClipBox(), aDC, drawInfo );
}
void D_PAD::DrawShape( EDA_RECT* aClipBox, wxDC* aDC, PAD_DRAWINFO& aDrawInfo )
{
wxPoint coord[12];
double angle = m_Orient;
int seg_width;
GRSetDrawMode( aDC, aDrawInfo.m_DrawMode );
// calculate pad shape position :
wxPoint shape_pos = ShapePos() - aDrawInfo.m_Offset;
wxSize halfsize = m_Size;
halfsize.x >>= 1;
halfsize.y >>= 1;
switch( GetShape() )
{
case PAD_SHAPE_CIRCLE:
if( aDrawInfo.m_ShowPadFilled )
GRFilledCircle( aClipBox, aDC, shape_pos.x, shape_pos.y,
halfsize.x + aDrawInfo.m_Mask_margin.x, 0,
aDrawInfo.m_Color, aDrawInfo.m_Color );
else
GRCircle( aClipBox, aDC, shape_pos.x, shape_pos.y,
halfsize.x + aDrawInfo.m_Mask_margin.x,
m_PadSketchModePenSize, aDrawInfo.m_Color );
if( aDrawInfo.m_PadClearance )
{
GRCircle( aClipBox,
aDC, shape_pos.x, shape_pos.y,
halfsize.x + aDrawInfo.m_PadClearance,
0, aDrawInfo.m_Color );
}
break;
case PAD_SHAPE_OVAL:
{
wxPoint segStart, segEnd;
seg_width = BuildSegmentFromOvalShape(segStart, segEnd, angle,
aDrawInfo.m_Mask_margin);
segStart += shape_pos;
segEnd += shape_pos;
if( aDrawInfo.m_ShowPadFilled )
{
GRFillCSegm( aClipBox, aDC, segStart.x, segStart.y, segEnd.x, segEnd.y,
seg_width, aDrawInfo.m_Color );
}
else
{
GRCSegm( aClipBox, aDC, segStart.x, segStart.y, segEnd.x, segEnd.y,
seg_width, m_PadSketchModePenSize, aDrawInfo.m_Color );
}
// Draw the clearance line
if( aDrawInfo.m_PadClearance )
{
seg_width += 2 * aDrawInfo.m_PadClearance;
GRCSegm( aClipBox, aDC, segStart.x, segStart.y, segEnd.x, segEnd.y,
seg_width, aDrawInfo.m_Color );
}
}
break;
case PAD_SHAPE_RECT:
case PAD_SHAPE_TRAPEZOID:
BuildPadPolygon( coord, aDrawInfo.m_Mask_margin, angle );
for( int ii = 0; ii < 4; ii++ )
coord[ii] += shape_pos;
GRClosedPoly( aClipBox, aDC, 4, coord, aDrawInfo.m_ShowPadFilled,
aDrawInfo.m_ShowPadFilled ? 0 : m_PadSketchModePenSize,
aDrawInfo.m_Color, aDrawInfo.m_Color );
if( aDrawInfo.m_PadClearance )
{
#define SEGCOUNT 32 // number of segments to approximate a circle
SHAPE_POLY_SET outline;
TransformShapeWithClearanceToPolygon( outline, aDrawInfo.m_PadClearance, SEGCOUNT, 1.0 );
// Draw the polygon: Inflate creates only one convex polygon
SHAPE_LINE_CHAIN& poly = outline.Outline( 0 );
GRClosedPoly( aClipBox, aDC, poly.PointCount(),
(wxPoint*)&poly.Point( 0 ), false, 0,
aDrawInfo.m_Color, aDrawInfo.m_Color );
}
break;
case PAD_SHAPE_ROUNDRECT:
{
// Use solder[Paste/Mask]size or pad size to build pad shape to draw
wxSize size( GetSize() );
size += aDrawInfo.m_Mask_margin * 2;
int corner_radius = GetRoundRectCornerRadius( size );
// Draw the polygon: Inflate creates only one convex polygon
SHAPE_POLY_SET outline;
bool filled = aDrawInfo.m_ShowPadFilled;
if( filled )
{
wxPoint centers[4];
GetRoundRectCornerCenters( centers, corner_radius, shape_pos,
size, GetOrientation() );
GRClosedPoly( aClipBox, aDC, 4, centers, true, corner_radius*2,
aDrawInfo.m_Color, aDrawInfo.m_Color );
}
else
{
TransformRoundRectToPolygon( outline, shape_pos, size, GetOrientation(),
corner_radius, 64 );
SHAPE_LINE_CHAIN& poly = outline.Outline( 0 );
GRClosedPoly( aClipBox, aDC, poly.PointCount(),
(wxPoint*)&poly.Point( 0 ), aDrawInfo.m_ShowPadFilled, 0,
aDrawInfo.m_Color, aDrawInfo.m_Color );
}
if( aDrawInfo.m_PadClearance )
{
outline.RemoveAllContours();
size = GetSize();
size.x += aDrawInfo.m_PadClearance * 2;
size.y += aDrawInfo.m_PadClearance * 2;
corner_radius = GetRoundRectCornerRadius() + aDrawInfo.m_PadClearance;
TransformRoundRectToPolygon( outline, shape_pos, size, GetOrientation(),
corner_radius, 32 );
// Draw the polygon: Inflate creates only one convex polygon
SHAPE_LINE_CHAIN& clearance_poly = outline.Outline( 0 );
GRClosedPoly( aClipBox, aDC, clearance_poly.PointCount(),
(wxPoint*)&clearance_poly.Point( 0 ), false, 0,
aDrawInfo.m_Color, aDrawInfo.m_Color );
}
}
break;
default:
break;
}
// Draw the pad hole
wxPoint holepos = m_Pos - aDrawInfo.m_Offset;
int hole = m_Drill.x >> 1;
bool drawhole = hole > 0;
if( !aDrawInfo.m_ShowPadFilled && !aDrawInfo.m_ShowNotPlatedHole )
drawhole = false;
if( drawhole )
{
bool blackpenstate = false;
if( aDrawInfo.m_IsPrinting )
{
blackpenstate = GetGRForceBlackPenState();
GRForceBlackPen( false );
aDrawInfo.m_HoleColor = WHITE;
aDrawInfo.m_NPHoleColor = WHITE;
}
else
{
GRSetDrawMode( aDC, ( aDrawInfo.m_DrawMode != GR_XOR ) ? GR_COPY : GR_XOR );
}
COLOR4D hole_color = aDrawInfo.m_HoleColor;
if( aDrawInfo. m_ShowNotPlatedHole ) // Draw a specific hole color
hole_color = aDrawInfo.m_NPHoleColor;
switch( GetDrillShape() )
{
case PAD_DRILL_SHAPE_CIRCLE:
if( aDC->LogicalToDeviceXRel( hole ) > MIN_DRAW_WIDTH )
GRFilledCircle( aClipBox, aDC, holepos.x, holepos.y, hole, 0,
hole_color, hole_color );
break;
case PAD_DRILL_SHAPE_OBLONG:
{
wxPoint drl_start, drl_end;
GetOblongDrillGeometry( drl_start, drl_end, seg_width );
GRFilledSegment( aClipBox, aDC, holepos + drl_start,
holepos + drl_end, seg_width, hole_color );
}
break;
default:
break;
}
if( aDrawInfo.m_IsPrinting )
GRForceBlackPen( blackpenstate );
}
GRSetDrawMode( aDC, aDrawInfo.m_DrawMode );
// Draw "No connect" ( / or \ or cross X ) if necessary
if( GetNetCode() == 0 && aDrawInfo.m_ShowNCMark )
{
int dx0 = std::min( halfsize.x, halfsize.y );
COLOR4D nc_color = COLOR4D( BLUE );
if( m_layerMask[F_Cu] ) /* Draw \ */
GRLine( aClipBox, aDC, holepos.x - dx0, holepos.y - dx0,
holepos.x + dx0, holepos.y + dx0, 0, nc_color );
if( m_layerMask[B_Cu] ) // Draw /
GRLine( aClipBox, aDC, holepos.x + dx0, holepos.y - dx0,
holepos.x - dx0, holepos.y + dx0, 0, nc_color );
}
if( !aDrawInfo.m_IsPrinting )
GRSetDrawMode( aDC, ( aDrawInfo.m_DrawMode != GR_XOR ) ? GR_COPY : GR_XOR );
// Draw the pad number
if( !aDrawInfo.m_Display_padnum && !aDrawInfo.m_Display_netname )
return;
wxPoint tpos0 = shape_pos; // Position of the centre of text
wxPoint tpos = tpos0;
wxSize AreaSize; // size of text area, normalized to AreaSize.y < AreaSize.x
int shortname_len = 0;
if( aDrawInfo.m_Display_netname )
shortname_len = GetShortNetname().Len();
if( GetShape() == PAD_SHAPE_CIRCLE )
angle = 0;
AreaSize = m_Size;
if( m_Size.y > m_Size.x )
{
angle += 900;
AreaSize.x = m_Size.y;
AreaSize.y = m_Size.x;
}
if( shortname_len > 0 ) // if there is a netname, provides room to display this netname
{
AreaSize.y /= 2; // Text used only the upper area of the
// pad. The lower area displays the net name
tpos.y -= AreaSize.y / 2;
}
// Calculate the position of text, that is the middle point of the upper
// area of the pad
RotatePoint( &tpos, shape_pos, angle );
// Draw text with an angle between -90 deg and + 90 deg
double t_angle = angle;
NORMALIZE_ANGLE_90( t_angle );
/* Note: in next calculations, texte size is calculated for 3 or more
* chars. Of course, pads numbers and nets names can have less than 3
* chars. but after some tries, i found this is gives the best look
*/
#define MIN_CHAR_COUNT 3
wxString buffer;
int tsize;
EDA_RECT* clipBox = aDrawInfo.m_DrawPanel?
aDrawInfo.m_DrawPanel->GetClipBox() : NULL;
if( aDrawInfo.m_Display_padnum )
{
StringPadName( buffer );
int numpad_len = buffer.Len();
numpad_len = std::max( numpad_len, MIN_CHAR_COUNT );
tsize = std::min( AreaSize.y, AreaSize.x / numpad_len );
if( aDC->LogicalToDeviceXRel( tsize ) >= MIN_TEXT_SIZE ) // Not drawable when size too small.
{
// tsize reserve room for marges and segments thickness
tsize = ( tsize * 7 ) / 10;
DrawGraphicHaloText( clipBox, aDC, tpos,
aDrawInfo.m_Color, BLACK, WHITE,
buffer, t_angle,
wxSize( tsize , tsize ), GR_TEXT_HJUSTIFY_CENTER,
GR_TEXT_VJUSTIFY_CENTER, tsize / 7, false, false );
}
}
// display the short netname, if exists
if( shortname_len == 0 )
return;
shortname_len = std::max( shortname_len, MIN_CHAR_COUNT );
tsize = std::min( AreaSize.y, AreaSize.x / shortname_len );
if( aDC->LogicalToDeviceXRel( tsize ) >= MIN_TEXT_SIZE ) // Not drawable in size too small.
{
tpos = tpos0;
if( aDrawInfo.m_Display_padnum )
tpos.y += AreaSize.y / 2;
RotatePoint( &tpos, shape_pos, angle );
// tsize reserve room for marges and segments thickness
tsize = ( tsize * 7 ) / 10;
DrawGraphicHaloText( clipBox, aDC, tpos,
aDrawInfo.m_Color, BLACK, WHITE,
GetShortNetname(), t_angle,
wxSize( tsize, tsize ), GR_TEXT_HJUSTIFY_CENTER,
GR_TEXT_VJUSTIFY_CENTER, tsize / 7, false, false );
}
}
/**
* Function BuildSegmentFromOvalShape
* Has meaning only for OVAL (and ROUND) pads.
* Build an equivalent segment having the same shape as the OVAL shape,
* aSegStart and aSegEnd are the ending points of the equivalent segment of the shape
* aRotation is the asked rotation of the segment (usually m_Orient)
*/
int D_PAD::BuildSegmentFromOvalShape(wxPoint& aSegStart, wxPoint& aSegEnd,
double aRotation, const wxSize& aMargin) const
{
int width;
if( m_Size.y < m_Size.x ) // Build an horizontal equiv segment
{
int delta = ( m_Size.x - m_Size.y ) / 2;
aSegStart.x = -delta - aMargin.x;
aSegStart.y = 0;
aSegEnd.x = delta + aMargin.x;
aSegEnd.y = 0;
width = m_Size.y + ( aMargin.y * 2 );
}
else // Vertical oval: build a vertical equiv segment
{
int delta = ( m_Size.y -m_Size.x ) / 2;
aSegStart.x = 0;
aSegStart.y = -delta - aMargin.y;
aSegEnd.x = 0;
aSegEnd.y = delta + aMargin.y;
width = m_Size.x + ( aMargin.x * 2 );
}
if( aRotation )
{
RotatePoint( &aSegStart, aRotation);
RotatePoint( &aSegEnd, aRotation);
}
return width;
}
void D_PAD::BuildPadPolygon( wxPoint aCoord[4], wxSize aInflateValue,
double aRotation ) const
{
wxSize delta;
wxSize halfsize;
halfsize.x = m_Size.x >> 1;
halfsize.y = m_Size.y >> 1;
switch( GetShape() )
{
case PAD_SHAPE_RECT:
// For rectangular shapes, inflate is easy
halfsize += aInflateValue;
// Verify if do not deflate more than than size
// Only possible for inflate negative values.
if( halfsize.x < 0 )
halfsize.x = 0;
if( halfsize.y < 0 )
halfsize.y = 0;
break;
case PAD_SHAPE_TRAPEZOID:
// Trapezoidal pad: verify delta values
delta.x = ( m_DeltaSize.x >> 1 );
delta.y = ( m_DeltaSize.y >> 1 );
// be sure delta values are not to large
if( (delta.x < 0) && (delta.x <= -halfsize.y) )
delta.x = -halfsize.y + 1;
if( (delta.x > 0) && (delta.x >= halfsize.y) )
delta.x = halfsize.y - 1;
if( (delta.y < 0) && (delta.y <= -halfsize.x) )
delta.y = -halfsize.x + 1;
if( (delta.y > 0) && (delta.y >= halfsize.x) )
delta.y = halfsize.x - 1;
break;
default: // is used only for rect and trap. pads
return;
}
// Build the basic rectangular or trapezoid shape
// delta is null for rectangular shapes
aCoord[0].x = -halfsize.x - delta.y; // lower left
aCoord[0].y = +halfsize.y + delta.x;
aCoord[1].x = -halfsize.x + delta.y; // upper left
aCoord[1].y = -halfsize.y - delta.x;
aCoord[2].x = +halfsize.x - delta.y; // upper right
aCoord[2].y = -halfsize.y + delta.x;
aCoord[3].x = +halfsize.x + delta.y; // lower right
aCoord[3].y = +halfsize.y - delta.x;
// Offsetting the trapezoid shape id needed
// It is assumed delta.x or/and delta.y == 0
if( GetShape() == PAD_SHAPE_TRAPEZOID && (aInflateValue.x != 0 || aInflateValue.y != 0) )
{
double angle;
wxSize corr;
if( delta.y ) // lower and upper segment is horizontal
{
// Calculate angle of left (or right) segment with vertical axis
angle = atan2( (double) m_DeltaSize.y, (double) m_Size.y );
// left and right sides are moved by aInflateValue.x in their perpendicular direction
// We must calculate the corresponding displacement on the horizontal axis
// that is delta.x +- corr.x depending on the corner
corr.x = KiROUND( tan( angle ) * aInflateValue.x );
delta.x = KiROUND( aInflateValue.x / cos( angle ) );
// Horizontal sides are moved up and down by aInflateValue.y
delta.y = aInflateValue.y;
// corr.y = 0 by the constructor
}
else if( delta.x ) // left and right segment is vertical
{
// Calculate angle of lower (or upper) segment with horizontal axis
angle = atan2( (double) m_DeltaSize.x, (double) m_Size.x );
// lower and upper sides are moved by aInflateValue.x in their perpendicular direction
// We must calculate the corresponding displacement on the vertical axis
// that is delta.y +- corr.y depending on the corner
corr.y = KiROUND( tan( angle ) * aInflateValue.y );
delta.y = KiROUND( aInflateValue.y / cos( angle ) );
// Vertical sides are moved left and right by aInflateValue.x
delta.x = aInflateValue.x;
// corr.x = 0 by the constructor
}
else // the trapezoid is a rectangle
{
delta = aInflateValue; // this pad is rectangular (delta null).
}
aCoord[0].x += -delta.x - corr.x; // lower left
aCoord[0].y += delta.y + corr.y;
aCoord[1].x += -delta.x + corr.x; // upper left
aCoord[1].y += -delta.y - corr.y;
aCoord[2].x += delta.x - corr.x; // upper right
aCoord[2].y += -delta.y + corr.y;
aCoord[3].x += delta.x + corr.x; // lower right
aCoord[3].y += delta.y - corr.y;
/* test coordinates and clamp them if the offset correction is too large:
* Note: if a coordinate is bad, the other "symmetric" coordinate is bad
* So when a bad coordinate is found, the 2 symmetric coordinates
* are set to the minimun value (0)
*/
if( aCoord[0].x > 0 ) // lower left x coordinate must be <= 0
aCoord[0].x = aCoord[3].x = 0;
if( aCoord[1].x > 0 ) // upper left x coordinate must be <= 0
aCoord[1].x = aCoord[2].x = 0;
if( aCoord[0].y < 0 ) // lower left y coordinate must be >= 0
aCoord[0].y = aCoord[1].y = 0;
if( aCoord[3].y < 0 ) // lower right y coordinate must be >= 0
aCoord[3].y = aCoord[2].y = 0;
}
if( aRotation )
{
for( int ii = 0; ii < 4; ii++ )
RotatePoint( &aCoord[ii], aRotation );
}
}
Reference in New Issue View Git Blame Copy Permalink