1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
7 #include "rendercontrol.hh"
13 Label::Label(Widget *parent)
17 _justify_horz(RenderStyle::LeftTopJustify),
18 _justify_vert(RenderStyle::LeftTopJustify),
21 styleChanged(*RenderStyle::style(screen()));
28 void Label::setHorizontalJustify(RenderStyle::Justify j)
34 void Label::setVerticalJustify(RenderStyle::Justify j)
40 void Label::setHighlighted(bool h)
43 styleChanged(*RenderStyle::style(screen()));
47 void Label::setText(const ustring &text)
49 bool utf = text.utf8();
50 std::string s = text.c_str(); // use a normal string, for its functionality
55 // parse it into multiple lines
56 std::string::size_type p = 0;
57 while (p != std::string::npos) {
58 std::string::size_type p2 = s.find('\n', p);
59 std::string s(s.substr(p, (p2==std::string::npos?p2:p2-p)));
61 // turn tabs into spaces (multiples of 8)
62 std::string::size_type t;
63 while ((t = s.find('\t')) != std::string::npos)
64 s.replace(t, 1, std::string(8 - t % 8, ' '));
66 _parsedtext.push_back(s);
67 _parsedtext.back().setUtf8(utf);
68 p = (p2==std::string::npos?p2:p2+1);
73 void Label::setFont(const Font *f)
79 void Label::calcDefaultSizes()
82 // find the longest line
83 std::vector<ustring>::iterator it, end = _parsedtext.end();
84 for (it = _parsedtext.begin(); it != end; ++it) {
85 int length = _font->measureString(*it);
86 if (length < 0) continue; // lines too long get skipped
87 if (length > longest) longest = length;
89 setMinSize(Size(longest + borderWidth() * 2 + bevel() * 4,
90 _parsedtext.size() * _font->height() + borderWidth() * 2 +
94 void Label::styleChanged(const RenderStyle &style)
97 _texture = style.labelFocusBackground();
98 _forecolor = style.textFocusColor();
100 _texture = style.labelUnfocusBackground();
101 _forecolor = style.textUnfocusColor();
103 if (_font != style.labelFont()) {
104 _font = style.labelFont();
109 void Label::renderForeground(Surface &surface)
111 const RenderControl *control = display->renderControl(screen());
112 int sidemargin = bevel() * 2;
114 int w = area().width() - borderWidth() * 2 - sidemargin * 2;
115 int h = area().height() - borderWidth() * 2 - bevel() * 2;
117 switch (_justify_vert) {
118 case RenderStyle::RightBottomJustify:
119 y += h - (_parsedtext.size() * _font->height());
120 if (y < bevel()) y = bevel();
122 case RenderStyle::CenterJustify:
123 y += (h - (_parsedtext.size() * _font->height())) / 2;
124 if (y < bevel()) y = bevel();
126 case RenderStyle::LeftTopJustify:
130 if (w <= 0) return; // can't fit anything
132 std::vector<ustring>::iterator it, end = _parsedtext.end();
133 for (it = _parsedtext.begin(); it != end; ++it, y += _font->height()) {
134 ustring t = *it; // the actual text to draw
135 int x = sidemargin; // x coord for the text
137 // find a string that will fit inside the area for text
138 ustring::size_type text_len = t.size();
143 length = _font->measureString(t);
144 } while (length > w && text_len-- > 0);
145 if (length < 0) continue; // lines too long get skipped
147 if (text_len <= 0) continue; // won't fit anything
150 switch (_justify_horz) {
151 case RenderStyle::RightBottomJustify:
154 case RenderStyle::CenterJustify:
155 x += (w - length) / 2;
157 case RenderStyle::LeftTopJustify:
161 control->drawString(surface, *_font, x, y, *_forecolor, t);