2 * \file MetricsInfo.cpp
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
8 * Full author contact details are available in file CREDITS.
13 #include "BufferView.h"
16 #include "MetricsInfo.h"
18 #include "insets/Inset.h"
20 #include "mathed/MathSupport.h"
22 #include "frontends/Painter.h"
24 #include "support/docstring.h"
25 #include "support/lassert.h"
26 #include "support/RefChanger.h"
33 /////////////////////////////////////////////////////////////////////////
37 /////////////////////////////////////////////////////////////////////////
39 MetricsBase::MetricsBase(BufferView * b, FontInfo f, int w)
40 : bv(b), font(move(f)), fontname("mathnormal"),
41 textwidth(w), macro_nesting(0),
42 solid_line_thickness_(1), solid_line_offset_(1), dotted_line_thickness_(1)
44 if (lyxrc.zoom >= 200) {
45 // derive the line thickness from zoom factor
46 // the zoom is given in percent
47 // (increase thickness at 250%, 450% etc.)
48 solid_line_thickness_ = (lyxrc.zoom + 150) / 200;
49 // adjust line_offset_ too
50 solid_line_offset_ = 1 + solid_line_thickness_ / 2;
52 if (lyxrc.zoom >= 100) {
53 // derive the line thickness from zoom factor
54 // the zoom is given in percent
55 // (increase thickness at 150%, 250% etc.)
56 dotted_line_thickness_ = (lyxrc.zoom + 50) / 100;
61 Changer MetricsBase::changeFontSet(string const & name, bool cond)
63 RefChanger<MetricsBase> rc = make_save(*this);
67 ColorCode oldcolor = font.color();
68 string const oldname = fontname;
70 if (isMathFont(name) || isMathFont(oldname))
72 augmentFont(font, name);
73 font.setSize(rc->old.font.size());
74 font.setStyle(rc->old.font.style());
76 && ((isTextFont(oldname) && oldcolor != Color_foreground)
77 || (isMathFont(oldname) && oldcolor != Color_math)))
78 font.setColor(oldcolor);
84 /////////////////////////////////////////////////////////////////////////
88 /////////////////////////////////////////////////////////////////////////
90 MetricsInfo::MetricsInfo(BufferView * bv, FontInfo font, int textwidth,
91 MacroContext const & mc)
92 : base(bv, font, textwidth), macrocontext(mc)
96 /////////////////////////////////////////////////////////////////////////
100 /////////////////////////////////////////////////////////////////////////
102 PainterInfo::PainterInfo(BufferView * bv, lyx::frontend::Painter & painter)
103 : pain(painter), ltr_pos(false), change_(), selected(false),
104 do_spellcheck(true), full_repaint(true), background_color(Color_background)
110 void PainterInfo::draw(int x, int y, char_type c)
112 pain.text(x, y, c, base.font);
116 void PainterInfo::draw(int x, int y, docstring const & str)
118 pain.text(x, y, str, base.font);
122 ColorCode PainterInfo::backgroundColor(Inset const * inset, bool sel) const
124 ColorCode const color_bg = inset->backgroundColor(*this);
127 // This inset is in a selection
128 return Color_selection;
130 if (color_bg != Color_none)
131 // This inset has its own color
134 if (background_color == Color_none)
135 // This inset has no own color and does not inherit a color
136 return Color_background;
138 // This inset has no own color, but inherits a color
139 return background_color;
145 Color PainterInfo::textColor(Color const & color) const
147 if (change_.changed())
148 return change_.color();
150 return Color_selectiontext;
155 Changer MetricsBase::changeScript(bool cond)
157 switch (font.style()) {
160 return font.changeStyle(LM_ST_SCRIPT, cond);
162 case LM_ST_SCRIPTSCRIPT:
163 return font.changeStyle(LM_ST_SCRIPTSCRIPT, cond);
166 LASSERT(false, return Changer());
170 Changer MetricsBase::changeFrac(bool cond)
172 switch (font.style()) {
174 return font.changeStyle(LM_ST_TEXT, cond);
176 return font.changeStyle(LM_ST_SCRIPT, cond);
178 case LM_ST_SCRIPTSCRIPT:
179 return font.changeStyle(LM_ST_SCRIPTSCRIPT, cond);