1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/*
* This program source code file is part of KICAD, a free EDA CAD application.
*
* Copyright The 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include <preview_items/preview_utils.h>
#include <gal/graphics_abstraction_layer.h>
#include <base_units.h>
#include <gal/painter.h>
#include <view/view.h>
#include <gal/hidpi_gl_canvas.h>
double KIGFX::PREVIEW::PreviewOverlayDeemphAlpha( bool aDeemph )
{
return aDeemph ? 0.5 : 1.0;
}
wxString KIGFX::PREVIEW::DimensionLabel( const wxString& prefix, double aVal,
const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits,
bool aIncludeUnits )
{
wxString str;
if( prefix.size() )
str << prefix << ": ";
wxString fmtStr;
// show a sane precision for the preview, which doesn't need to be accurate down to the
// nanometre
switch( aUnits )
{
case EDA_UNITS::UM: fmtStr = wxT( "%.0f" ); break; // 1um
case EDA_UNITS::MM: fmtStr = wxT( "%.3f" ); break; // 1um
case EDA_UNITS::CM: fmtStr = wxT( "%.4f" ); break; // 1um
case EDA_UNITS::MILS: fmtStr = wxT( "%.1f" ); break; // 0.1mil
case EDA_UNITS::INCH: fmtStr = wxT( "%.4f" ); break; // 0.1mil
case EDA_UNITS::DEGREES: fmtStr = wxT( "%.1f" ); break; // 0.1deg
case EDA_UNITS::PERCENT: fmtStr = wxT( "%.1f" ); break; // 0.1%
case EDA_UNITS::UNSCALED: fmtStr = wxT( "%f" ); break;
}
str << wxString::Format( fmtStr, EDA_UNIT_UTILS::UI::ToUserUnit( aIuScale, aUnits, aVal ) );
if( aIncludeUnits )
str << EDA_UNIT_UTILS::GetText( aUnits );
return str;
}
KIGFX::PREVIEW::TEXT_DIMS KIGFX::PREVIEW::GetConstantGlyphHeight( KIGFX::GAL* aGal,
int aRelativeSize )
{
constexpr double aspectRatio = 1.0;
constexpr double hdpiSizes[] = { 7, 8, 9, 11, 13, 14, 16 };
constexpr double sizes[] = { 8, 10, 12, 14, 15, 16, 18 };
double height;
double thicknessFactor;
double shadowFactor;
double linePitchFactor;
HIDPI_GL_CANVAS* canvas = dynamic_cast<HIDPI_GL_CANVAS*>( aGal );
if( canvas && canvas->GetScaleFactor() > 1 )
{
height = hdpiSizes[ 3 + aRelativeSize ];
thicknessFactor = 0.15;
shadowFactor = 0.10;
linePitchFactor = 1.7;
}
else
{
height = sizes[ 3 + aRelativeSize ];
thicknessFactor = 0.20;
shadowFactor = 0.15;
linePitchFactor = 1.9;
}
height /= aGal->GetWorldScale();
TEXT_DIMS textDims;
textDims.GlyphSize = VECTOR2I( height * aspectRatio, height );
textDims.StrokeWidth = height * thicknessFactor;
textDims.ShadowWidth = height * shadowFactor;
textDims.LinePitch = height * linePitchFactor;
return textDims;
}
KIGFX::COLOR4D KIGFX::PREVIEW::GetShadowColor( const KIGFX::COLOR4D& aColor )
{
if( aColor.GetBrightness() > 0.5 )
return COLOR4D::BLACK;
else
return COLOR4D::WHITE;
}
void KIGFX::PREVIEW::DrawTextNextToCursor( KIGFX::VIEW* aView, const VECTOR2D& aCursorPos,
const VECTOR2D& aTextQuadrant,
const wxArrayString& aStrings,
bool aDrawingDropShadows )
{
KIGFX::GAL* gal = aView->GetGAL();
GAL_SCOPED_ATTRS settings( *gal, GAL_SCOPED_ATTRS::STROKE_FILL );
KIFONT::FONT* font = KIFONT::FONT::GetFont();
// constant text size on screen
TEXT_DIMS textDims = GetConstantGlyphHeight( gal );
TEXT_ATTRIBUTES textAttrs;
// radius string goes on the right of the cursor centre line with a small horizontal
// offset (enough to keep clear of a system cursor if present)
VECTOR2D textPos = aCursorPos;
bool viewFlipped = gal->IsFlippedX();
// if the text goes above the cursor, shift it up
if( aTextQuadrant.y > 0 )
textPos.y -= textDims.LinePitch * ( aStrings.size() + 1 );
if( aTextQuadrant.x < 0 )
{
if( viewFlipped )
textAttrs.m_Halign = GR_TEXT_H_ALIGN_RIGHT;
else
textAttrs.m_Halign = GR_TEXT_H_ALIGN_LEFT;
textPos.x += 15.0 / gal->GetWorldScale();
}
else
{
if( viewFlipped )
textAttrs.m_Halign = GR_TEXT_H_ALIGN_LEFT;
else
textAttrs.m_Halign = GR_TEXT_H_ALIGN_RIGHT;
textPos.x -= 15.0 / gal->GetWorldScale();
}
// text is left (or right) aligned, so a shadow text need a small offset to be draw
// around the basic text
int shadowXoffset = aDrawingDropShadows ? textDims.ShadowWidth : 0;
// Due to the fact a shadow text is drawn left or right aligned,
// it needs an offset = shadowWidth/2 to be drawn at the same place as normal text
// But for some reason we need to slightly modify this offset
// for a better look for KiCad font (better alignment of shadow shape)
const float adjust = 1.2f; // Value chosen after tests
shadowXoffset *= adjust;
if( ( textAttrs.m_Halign == GR_TEXT_H_ALIGN_LEFT ) != viewFlipped )
textPos.x -= shadowXoffset;
else
textPos.x += shadowXoffset;
gal->SetStrokeColor( aView->GetPainter()->GetSettings()->GetLayerColor( LAYER_AUX_ITEMS ) );
textAttrs.m_Mirrored = viewFlipped; // Prevent text flipping when view is flipped
textAttrs.m_Size = textDims.GlyphSize;
textAttrs.m_StrokeWidth = textDims.StrokeWidth;
gal->SetIsFill( false );
gal->SetIsStroke( true );
if( aDrawingDropShadows )
{
textAttrs.m_StrokeWidth = textDims.StrokeWidth + ( 2 * textDims.ShadowWidth );
gal->SetStrokeColor( GetShadowColor( gal->GetStrokeColor() ) );
}
// write strings top-to-bottom
for( const wxString& str : aStrings )
{
textPos.y += textDims.LinePitch;
font->Draw( gal, str, textPos, textAttrs, KIFONT::METRICS::Default() );
}
}
|
