KiCad PCB EDA Suite
two_point_assistant.cpp
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1/*
2 * This program source code file is part of KiCad, a free EDA CAD application.
3 *
4 * Copyright (C) 2020 Kicad Developers, see AUTHORS.txt for contributors.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, you may find one here:
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19 * or you may search the http://www.gnu.org website for the version 2 license,
20 * or you may write to the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
22 */
23
27#include <view/view.h>
28
29
30using namespace KIGFX::PREVIEW;
31
32TWO_POINT_ASSISTANT::TWO_POINT_ASSISTANT( const TWO_POINT_GEOMETRY_MANAGER& aManager,
33 const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
34 GEOM_SHAPE aShape ) :
36 m_constructMan( aManager ),
37 m_units( aUnits ),
38 m_shape( aShape ),
39 m_iuScale( aIuScale )
40{
41}
42
43
45{
46 BOX2I tmp;
47
48 // no bounding box when no graphic shown
50 return tmp;
51
52 // this is an edit-time artefact; no reason to try and be smart with the bounding box
53 // (besides, we can't tell the text extents without a view to know what the scale is)
54 tmp.SetMaximum();
55 return tmp;
56}
57
58
59void TWO_POINT_ASSISTANT::ViewDraw( int aLayer, KIGFX::VIEW* aView ) const
60{
61 KIGFX::GAL& gal = *aView->GetGAL();
62
63 // not in a position to draw anything
65 return;
66
67 const VECTOR2I origin = m_constructMan.GetOrigin();
68 const VECTOR2I end = m_constructMan.GetEnd();
69 const VECTOR2D radVec = end - origin;
70
71 // Ensures that +90° is up and -90° is down in pcbnew
72 const EDA_ANGLE deltaAngle( VECTOR2I( radVec.x, -radVec.y ) );
73
74 if( radVec.x == 0 && radVec.y == 0 )
75 {
76 return; // text next to cursor jumps around a lot in this corner case
77 }
78
80
81 std::vector<wxString> cursorStrings;
82
84 {
85 cursorStrings.push_back(
86 DimensionLabel( "l", radVec.EuclideanNorm(), m_iuScale, m_units ) );
87 cursorStrings.push_back( DimensionLabel( wxString::FromUTF8( "θ" ), deltaAngle.AsDegrees(),
89 }
90 else if( m_shape == GEOM_SHAPE::RECT )
91 {
92 cursorStrings.push_back( DimensionLabel( "x", std::abs( radVec.x ), m_iuScale, m_units ) );
93 cursorStrings.push_back( DimensionLabel( "y", std::abs( radVec.y ), m_iuScale, m_units ) );
94 }
95 else if( m_shape == GEOM_SHAPE::CIRCLE )
96 {
97 KIGFX::PREVIEW::DRAW_CONTEXT preview_ctx( *aView );
98 preview_ctx.DrawLine( origin, end, false );
99
100 cursorStrings.push_back(
101 DimensionLabel( "r", radVec.EuclideanNorm(), m_iuScale, m_units ) );
102 }
103
104 // place the text next to cursor, on opposite side from drawing
105 DrawTextNextToCursor( aView, end, origin - end, cursorStrings, aLayer == LAYER_SELECT_OVERLAY );
106}
void SetMaximum()
Definition: box2.h:63
double AsDegrees() const
Definition: eda_angle.h:149
A base class for most all the KiCad significant classes used in schematics and boards.
Definition: eda_item.h:85
Abstract interface for drawing on a 2D-surface.
void ResetTextAttributes()
Reset text attributes to default styling.
A KIGFX::PREVIEW::DRAW_CONTEXT is a wrapper around a GAL and some other settings that makes it easy t...
Definition: draw_context.h:45
void DrawLine(const VECTOR2I &aStart, const VECTOR2I &aEnd, bool aDeEmphasised)
Draw a simple line on the current layer.
const BOX2I ViewBBox() const override
Return the bounding box of the item covering all its layers.
void ViewDraw(int aLayer, KIGFX::VIEW *aView) const override final
Draw the assistance (with reference to the construction manager.
const TWO_POINT_GEOMETRY_MANAGER & m_constructMan
Represent a very simple geometry manager for items that have a start and end point.
Hold a (potentially large) number of VIEW_ITEMs and renders them on a graphics device provided by the...
Definition: view.h:69
GAL * GetGAL() const
Return the #GAL this view is using to draw graphical primitives.
Definition: view.h:195
T EuclideanNorm() const
Compute the Euclidean norm of the vector, which is defined as sqrt(x ** 2 + y ** 2).
Definition: vector2d.h:293
EDA_UNITS
Definition: eda_units.h:43
@ LAYER_SELECT_OVERLAY
currently selected items overlay
Definition: layer_ids.h:219
wxString DimensionLabel(const wxString &prefix, double aVal, const EDA_IU_SCALE &aIuScale, EDA_UNITS aUnits, bool aIncludeUnits=true)
Get a formatted string showing a dimension to a sane precision with an optional prefix and unit suffi...
void DrawTextNextToCursor(KIGFX::VIEW *aView, const VECTOR2D &aCursorPos, const VECTOR2D &aTextQuadrant, const std::vector< wxString > &aStrings, bool aDrawingDropShadows)
Draw strings next to the cursor.
EDA_ANGLE abs(const EDA_ANGLE &aAngle)
Definition: eda_angle.h:401
@ NOT_USED
the 3d code uses this value
Definition: typeinfo.h:79
VECTOR2< int > VECTOR2I
Definition: vector2d.h:618