wmi

git clone git://oldgit.suckless.org/wmi/
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label.cpp (2397B)

      1 // Copyright (c) 2003 - 2009 Anselm R Garbe <anselm@garbe.us>
      2 // See LICENSE for license details.
      3 
      4 #include <sstream>
      5 
      6 #include "label.h"
      7 
      8 #include "draw.h"
      9 #include "font.h"
     10 #include "logger.h"
     11 #include "kernel.h"
     12 #include "monitor.h"
     13 #include "xcore.h"
     14 
     15 Label::Label(Monitor *monitor, Window window, Alignment align, GC gc)
     16     : Rectangle()
     17 {
     18 
     19     LOGDEBUG("initializing label");
     20     align_ = align;
     21     font_ = monitor->font();
     22     monitor_ = monitor;
     23     gc_ = gc;
     24     window_ = window;
     25 }
     26 
     27 Label::~Label() {
     28 }
     29 
     30 unsigned int Label::adjustWidth() {
     31     setWidth(textWidth());
     32     return width();
     33 }
     34 
     35 unsigned int Label::textWidth() {
     36     return font_->textWidth(text_) + 2 * font_->height();
     37 }
     38 
     39 void Label::update(unsigned long background, unsigned long text,
     40                 unsigned long shine, unsigned long shadow,
     41                 bool shineBorder, bool shadowBorder)
     42 
     43 {
     44 
     45     LOGDEBUG("label update");
     46 
     47     // draw background
     48     XCORE->setForeground(gc_, background);
     49     XCORE->fillRectangle(window_, gc_, this);
     50 
     51     // draw border if neccessary
     52     if (shadowBorder) {
     53         Draw::drawShadowBorder(window_, gc_, this, shadow);
     54     }
     55 
     56     if (shineBorder) {
     57 
     58         Draw::drawShineBorder(window_, gc_, this, shine);
     59     }
     60 
     61     // draw text
     62     if (text_ == "") {
     63         return; // nothing to draw
     64     }
     65     XCORE->setForeground(gc_, text);
     66     int textWidth = this->textWidth();
     67 
     68     if (textWidth > (int)width()) {
     69         int matchLength = (int)((text_.length() * width() / textWidth) - 3);
     70         if (matchLength < 0) {
     71             matchLength = 0;
     72         }
     73         text_ = Util::shortenString(text_, matchLength);
     74         textWidth = this->textWidth();
     75     }
     76 
     77     unsigned int fontBaseLine = 0;
     78     fontBaseLine = font_->ascent();
     79     unsigned int fontY = y() + height() / 2 - font_->height() / 2 + fontBaseLine;
     80 
     81     unsigned int fontX = 0;
     82     switch (align_) {
     83     case LEFT:
     84         fontX = x() + font_->height();
     85         break;
     86     case CENTER:
     87         fontX = x() + (width() / 2 - (textWidth - 2 * font_->height()) / 2);
     88         break;
     89     case RIGHT:
     90         fontX = x() + width() - textWidth + font_->height();
     91         break;
     92     }
     93 
     94    font_->drawText(window_, gc_, fontX, fontY, text_);
     95 }
     96 
     97 
     98 void Label::setText(string text) {
     99     text_ = text;
    100 }
    101 
    102 string Label::text() const {
    103     return text_;
    104 }
    105 
    106 void Label::setAlignment(const Alignment align) {
    107     align_ = align;
    108 }