]> git.lyx.org Git - lyx.git/blobdiff - src/MetricsInfo.cpp
Hack to display section symbol
[lyx.git] / src / MetricsInfo.cpp
index 3808da6a2457f6fce1fd774b67c86ab8130e028d..8fe03ba441fbf4f8ae303b64168948def0fad6a8 100644 (file)
 
 #include <config.h>
 
-#include "BufferView.h"
-#include "ColorSet.h"
 #include "MetricsInfo.h"
 
+#include "LyXRC.h"
+
 #include "insets/Inset.h"
 
 #include "mathed/MathSupport.h"
 
+#include "frontends/FontMetrics.h"
 #include "frontends/Painter.h"
 
-#include "support/docstring.h"
-#include "support/lassert.h"
-#include "support/RefChanger.h"
-
 using namespace std;
 
 
@@ -35,42 +32,86 @@ namespace lyx {
 //
 /////////////////////////////////////////////////////////////////////////
 
-MetricsBase::MetricsBase()
-       : bv(0), font(), style(LM_ST_TEXT), fontname("mathnormal"),
-         textwidth(0)
-{}
-
-
-MetricsBase::MetricsBase(BufferView * b, FontInfo const & f, int w)
-       : bv(b), font(f), style(LM_ST_TEXT), fontname("mathnormal"),
-         textwidth(w)
-{}
+MetricsBase::MetricsBase(BufferView * b, FontInfo f, int w)
+       : bv(b), font(std::move(f)), fontname("mathnormal"),
+         textwidth(w), macro_nesting(0),
+         solid_line_thickness_(1), solid_line_offset_(1), dotted_line_thickness_(1)
+{
+       if (lyxrc.currentZoom >= 200) {
+               // derive the line thickness from zoom factor
+               // the zoom is given in percent
+               // (increase thickness at 250%, 450% etc.)
+               solid_line_thickness_ = (lyxrc.currentZoom + 150) / 200;
+               // adjust line_offset_ too
+               solid_line_offset_ = 1 + solid_line_thickness_ / 2;
+       }
+       if (lyxrc.currentZoom >= 100) {
+               // derive the line thickness from zoom factor
+               // the zoom is given in percent
+               // (increase thickness at 150%, 250% etc.)
+               dotted_line_thickness_ = (lyxrc.currentZoom + 50) / 100;
+       }
+}
 
 
-Changer MetricsBase::changeFontSet(docstring const & name, bool cond)
+Changer MetricsBase::changeFontSet(string const & name)
 {
        RefChanger<MetricsBase> rc = make_save(*this);
-       if (!cond)
-               rc->keep();
-       else {
-               ColorCode oldcolor = font.color();
-               docstring const oldname = from_ascii(fontname);
-               fontname = to_utf8(name);
+       ColorCode oldcolor = font.color();
+       string const oldname = fontname;
+       fontname = name;
+       if (isMathFont(name) || isMathFont(oldname))
                font = sane_font;
-               augmentFont(font, name);
-               font.setSize(rc->old.font.size());
-               if (name != "lyxtex"
-                   && ((isTextFont(oldname) && oldcolor != Color_foreground)
-                       || (isMathFont(oldname) && oldcolor != Color_math)))
-                       font.setColor(oldcolor);
+       augmentFont(font, name);
+       font.setSize(rc->old.font.size());
+       font.setStyle(rc->old.font.style());
+       if (name == "emph") {
+               font.setColor(oldcolor);
+               if (rc->old.font.shape() != UP_SHAPE)
+                       font.setShape(UP_SHAPE);
+               else
+                       font.setShape(ITALIC_SHAPE);
+       } else if (name != "lyxtex"
+           && ((isTextFont(oldname) && oldcolor != Color_foreground)
+               || (isMathFont(oldname) && oldcolor != Color_math)))
+               font.setColor(oldcolor);
+#if __cplusplus >= 201402L
+       return rc;
+#else
+       /** In theory, this is not needed with C++11, and modern compilers
+        * will complain in C++11 mode, but gcc 4.9 requires this. */
+       return std::move(rc);
+#endif
+}
+
+
+Changer MetricsBase::changeEnsureMath(Inset::mode_type mode)
+{
+       switch (mode) {
+       case Inset::UNDECIDED_MODE:
+               return noChange();
+       case Inset::TEXT_MODE:
+               return isMathFont(fontname) ? changeFontSet("textnormal") : noChange();
+       case Inset::MATH_MODE:
+               // FIXME:
+               //   \textit{\ensuremath{\text{a}}}
+               // should appear in italics
+               return isTextFont(fontname) ? changeFontSet("mathnormal"): noChange();
        }
-       return move(rc);
+       return noChange();
 }
 
 
-Changer MetricsBase::changeFontSet(char const * name, bool cond)
+int MetricsBase::inPixels(Length const & len) const
 {
-       return changeFontSet(from_ascii(name), cond);
+       FontInfo fi = font;
+       if (len.unit() == Length::MU)
+               // mu is 1/18th of an em in the math symbol font
+               fi.setFamily(SYMBOL_FAMILY);
+       else
+               // Math style is only taken into account in the case of mu
+               fi.setStyle(TEXT_STYLE);
+       return len.inPixels(textwidth, theFontMetrics(fi).em());
 }
 
 
@@ -80,9 +121,10 @@ Changer MetricsBase::changeFontSet(char const * name, bool cond)
 //
 /////////////////////////////////////////////////////////////////////////
 
-MetricsInfo::MetricsInfo(BufferView * bv, FontInfo const & font, int textwidth, 
-       MacroContext const & mc)
-       : base(bv, font, textwidth), macrocontext(mc)
+MetricsInfo::MetricsInfo(BufferView * bv, FontInfo font, int textwidth,
+                         MacroContext const & mc, bool vm, bool tight)
+       : base(bv, font, textwidth), macrocontext(mc), vmode(vm), tight_insets(tight),
+         extrawidth(0)
 {}
 
 
@@ -93,8 +135,10 @@ MetricsInfo::MetricsInfo(BufferView * bv, FontInfo const & font, int textwidth,
 /////////////////////////////////////////////////////////////////////////
 
 PainterInfo::PainterInfo(BufferView * bv, lyx::frontend::Painter & painter)
-       : pain(painter), ltr_pos(false), change_(), selected(false),
-       do_spellcheck(true), full_repaint(true), background_color(Color_background)
+       : pain(painter), ltr_pos(false), change(),
+         selected(false), selected_left(false), selected_right(false),
+         do_spellcheck(true), full_repaint(true), background_color(Color_background),
+         leftx(0), rightx(0)
 {
        base.bv = bv;
 }
@@ -114,89 +158,84 @@ void PainterInfo::draw(int x, int y, docstring const & str)
 
 ColorCode PainterInfo::backgroundColor(Inset const * inset, bool sel) const
 {
-       ColorCode const color_bg = inset->backgroundColor(*this);
-
        if (selected && sel)
                // This inset is in a selection
                return Color_selection;
-       else {
+
+       // special handling for inset background
+       if (inset != nullptr) {
+               if (pain.develMode() && !inset->isBufferValid())
+                       // This inset is in error
+                       return Color_error;
+
+               ColorCode const color_bg = inset->backgroundColor(*this);
                if (color_bg != Color_none)
                        // This inset has its own color
                        return color_bg;
-               else {
-                       if (background_color == Color_none)
-                               // This inset has no own color and does not inherit a color
-                               return Color_background;
-                       else
-                               // This inset has no own color, but inherits a color
-                               return background_color;
-               }
        }
+
+       if (background_color == Color_none)
+               // This inset has no own color and does not inherit a color
+               return Color_background;
+
+       // This inset has no own color, but inherits a color
+       return background_color;
 }
 
 
 Color PainterInfo::textColor(Color const & color) const
 {
-       if (change_.changed()) 
-               return change_.color();
+       if (change.changed())
+               return change.color();
        if (selected)
                return Color_selectiontext;
        return color;
 }
 
 
-Changer MetricsBase::changeScript(bool cond)
+Changer MetricsBase::changeScript()
 {
-       switch (style) {
-       case LM_ST_DISPLAY:
-       case LM_ST_TEXT:
-               return changeStyle(LM_ST_SCRIPT, cond);
-       case LM_ST_SCRIPT:
-       case LM_ST_SCRIPTSCRIPT:
-               return changeStyle(LM_ST_SCRIPTSCRIPT, cond);
+       switch (font.style()) {
+       case DISPLAY_STYLE:
+       case TEXT_STYLE:
+               return font.changeStyle(SCRIPT_STYLE);
+       case SCRIPT_STYLE:
+       case SCRIPTSCRIPT_STYLE:
+               return font.changeStyle(SCRIPTSCRIPT_STYLE);
+       case INHERIT_STYLE:
+       case IGNORE_STYLE:
+               return noChange();
        }
        //remove Warning
-       LASSERT(false, return Changer());
+       return noChange();
 }
 
 
-Changer MetricsBase::changeFrac(bool cond)
+Changer MetricsBase::changeFrac()
 {
-       switch (style) {
-       case LM_ST_DISPLAY:
-               return changeStyle(LM_ST_TEXT, cond);
-       case LM_ST_TEXT:
-               return changeStyle(LM_ST_SCRIPT, cond);
-       case LM_ST_SCRIPT:
-       case LM_ST_SCRIPTSCRIPT:
-               return changeStyle(LM_ST_SCRIPTSCRIPT, cond);
+       switch (font.style()) {
+       case DISPLAY_STYLE:
+               return font.changeStyle(TEXT_STYLE);
+       case TEXT_STYLE:
+               return font.changeStyle(SCRIPT_STYLE);
+       case SCRIPT_STYLE:
+       case SCRIPTSCRIPT_STYLE:
+               return font.changeStyle(SCRIPTSCRIPT_STYLE);
+       case INHERIT_STYLE:
+       case IGNORE_STYLE:
+               return noChange();
        }
        //remove Warning
-       return Changer();
+       return noChange();
 }
 
 
-Changer MetricsBase::changeStyle(Styles new_style, bool cond)
+Changer MetricsBase::changeArray(bool small)
 {
-       static const int diff[4][4] =
-               { { 0, 0, -3, -5 },
-                 { 0, 0, -3, -5 },
-                 { 3, 3,  0, -2 },
-                 { 5, 5,  2,  0 } };
-       int t = diff[style][new_style];
-       RefChanger<MetricsBase> rc = make_save(*this);
-       if (!cond)
-               rc->keep();
-       else {
-               if (t > 0)
-                       while (t--)
-                               font.incSize();
-               else
-                       while (t++)
-                               font.decSize();
-               style = new_style;
-       }
-       return move(rc);
+       if (small)
+               return font.changeStyle(SCRIPT_STYLE);
+       return (font.style() == DISPLAY_STYLE) ? font.changeStyle(TEXT_STYLE)
+               : noChange();
 }