]> git.lyx.org Git - lyx.git/blob - src/insets/InsetLine.cpp
Fix text direction issue for InsetInfo in RTL context
[lyx.git] / src / insets / InsetLine.cpp
1 /**
2  * \file InsetLine.cpp
3  * This file is part of LyX, the document processor.
4  * Licence details can be found in the file COPYING.
5  *
6  * \author Abdelrazak Younes
7  * \author André Pönitz
8  * \author Uwe Stöhr
9  *
10  * Full author contact details are available in file CREDITS.
11  */
12
13 #include <config.h>
14
15 #include "InsetLine.h"
16
17 #include "Buffer.h"
18 #include "Cursor.h"
19 #include "Dimension.h"
20 #include "DispatchResult.h"
21 #include "FuncRequest.h"
22 #include "FuncStatus.h"
23 #include "LaTeXFeatures.h"
24 #include "Length.h"
25 #include "MetricsInfo.h"
26 #include "OutputParams.h"
27 #include "output_xhtml.h"
28 #include "texstream.h"
29 #include "Text.h"
30
31 #include "frontends/FontMetrics.h"
32 #include "frontends/Painter.h"
33
34 #include "support/debug.h"
35 #include "support/docstream.h"
36 #include "support/gettext.h"
37 #include "support/lstrings.h"
38
39 #include <cstdlib>
40
41 using namespace std;
42
43 namespace lyx {
44
45 using frontend::Painter;
46
47
48 InsetLine::InsetLine(Buffer * buf, InsetCommandParams const & p)
49         : InsetCommand(buf, p), height_(0), offset_(0)
50 {}
51
52
53 ParamInfo const & InsetLine::findInfo(string const & /* cmdName */)
54 {
55         static ParamInfo param_info_;
56         if (param_info_.empty()) {
57                 param_info_.add("offset", ParamInfo::LYX_INTERNAL);
58                 param_info_.add("width", ParamInfo::LYX_INTERNAL);
59                 param_info_.add("height", ParamInfo::LYX_INTERNAL);
60         }
61         return param_info_;
62 }
63
64
65 docstring InsetLine::screenLabel() const
66 {
67         return _("Horizontal line");
68 }
69
70
71 void InsetLine::doDispatch(Cursor & cur, FuncRequest & cmd)
72 {
73         switch (cmd.action()) {
74
75         case LFUN_INSET_MODIFY: {
76                 InsetCommandParams p(LINE_CODE);
77                 // FIXME UNICODE
78                 InsetCommand::string2params(to_utf8(cmd.argument()), p);
79                 if (p.getCmdName().empty()) {
80                         cur.noScreenUpdate();
81                         break;
82                 }
83                 cur.recordUndo();
84                 setParams(p);
85                 break;
86         }
87
88         default:
89                 InsetCommand::doDispatch(cur, cmd);
90                 break;
91         }
92 }
93
94
95 bool InsetLine::getStatus(Cursor & cur, FuncRequest const & cmd,
96         FuncStatus & status) const
97 {
98         switch (cmd.action()) {
99         case LFUN_INSET_DIALOG_UPDATE:
100         case LFUN_INSET_MODIFY:
101                 status.setEnabled(true);
102                 return true;
103         default:
104                 return InsetCommand::getStatus(cur, cmd, status);
105         }
106 }
107
108
109 void InsetLine::metrics(MetricsInfo & mi, Dimension & dim) const
110 {
111         frontend::FontMetrics const & fm = theFontMetrics(mi.base.font);
112         int const max_width = mi.base.textwidth;
113
114         Length const width(to_ascii(getParam("width")));
115         dim.wid = mi.base.inPixels(width);
116
117         // assure that the line inset is not outside of the window
118         // check that it doesn't exceed the outer boundary
119         if (dim.wid > max_width)
120                 dim.wid = max_width;
121
122         // set a minimal width
123         int const minw = (dim.wid < 0) ? 24 : 4;
124         dim.wid = max(minw, abs(dim.wid));
125
126         Length height = Length(to_ascii(getParam("height")));
127         height_ = mi.base.inPixels(height);
128
129         // get the length of the parameters in pixels
130         Length offset = Length(to_ascii(getParam("offset")));
131         offset_ = mi.base.inPixels(offset);
132
133         dim.asc = max(fm.maxAscent(), offset_ + height_);
134         dim.des = max(fm.maxDescent(), - offset_);
135 }
136
137
138 void InsetLine::draw(PainterInfo & pi, int x, int y) const
139 {
140         Dimension const dim = dimension(*pi.base.bv);
141
142         // get the surrounding text color
143         Color Line_color = pi.base.font.realColor();
144
145         // the offset is a vertical one
146         // the horizontal dimension must be corrected with the heigth because
147         // of left and right border of the painted line for big heigth.
148         pi.pain.line(x + height_/2 + 1,
149                      y - offset_ - height_/2,
150                      x + dim.wid - height_/2 - 2,
151                      y - offset_ - height_/2,
152                      Line_color, Painter::line_solid, height_);
153 }
154
155
156 void InsetLine::latex(otexstream & os, OutputParams const &) const
157 {
158         bool have_offset = true;
159         Length offset_len = Length(to_ascii(getParam("offset")));
160         if (offset_len.value() == 0)
161                 have_offset = false;
162
163         string const offset =
164                 Length(to_ascii(getParam("offset"))).asLatexString();
165         string const width =
166                 Length(to_ascii(getParam("width"))).asLatexString();
167         string const height =
168                 Length(to_ascii(getParam("height"))).asLatexString();
169
170         os << "\\rule";
171         // only output the optional parameter if the offset is not 0
172         if (have_offset)
173                 os      << "[" << from_ascii(offset) << "]";
174         os << "{" << from_ascii(width) << "}{" << from_ascii(height) << '}';
175 }
176
177
178 int InsetLine::plaintext(odocstringstream & os,
179         OutputParams const &, size_t) const
180 {
181         os << "\n-------------------------------------------\n";
182         return PLAINTEXT_NEWLINE;
183 }
184
185
186 int InsetLine::docbook(odocstream & os, OutputParams const &) const
187 {
188         os << '\n';
189         return 0;
190 }
191
192
193 docstring InsetLine::xhtml(XHTMLStream & xs, OutputParams const &) const
194 {
195         xs << html::CompTag("hr") << html::CR();
196         return docstring();
197 }
198
199
200 } // namespace lyx