cppconsui/ColorPicker.cpp

   1 // Copyright (C) 2012 Mark Pustjens <pustjens@dds.nl>
   2 // Copyright (C) 2012-2015 Petr Pavlu <setup@dagobah.cz>
   3 //
   4 // This file is part of CenterIM.
   5 //
   6 // CenterIM is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU General Public License as published by
   8 // the Free Software Foundation; either version 2 of the License, or
   9 // (at your option) any later version.
  10 //
  11 // CenterIM is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License
  17 // along with CenterIM.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 /// @file
  20 /// ColorPicker class implementation.
  21 ///
  22 /// @ingroup cppconsui
  23
  24 #include "ColorPicker.h"
  25
  26 #include "ColorScheme.h"
  27 #include "Spacer.h"
  28
  29 #include "gettext.h"
  30
  31 namespace CppConsUI {
  32
  33 ColorPicker::ColorPicker(int fg, int bg, const char *text, bool sample)
  34   : HorizontalListBox(AUTOSIZE, 1), fg_combo_(nullptr), bg_combo_(nullptr),
  35     label_(nullptr), sample_(nullptr)
  36 {
  37   fg_combo_ = new ColorPickerComboBox(10, fg);
  38   bg_combo_ = new ColorPickerComboBox(10, bg);
  39
  40   label_ = new Label(1, 1, "");
  41   setText(text);
  42
  43   fg_combo_->signal_color_changed.connect(
  44     sigc::mem_fun(this, &ColorPicker::onColorChanged));
  45   bg_combo_->signal_color_changed.connect(
  46     sigc::mem_fun(this, &ColorPicker::onColorChanged));
  47
  48   appendWidget(*label_);
  49   appendWidget(*fg_combo_);
  50   appendWidget(*(new Spacer(1, 1)));
  51   appendWidget(*bg_combo_);
  52
  53   if (sample) {
  54     sample_ = new Sample(10, fg, bg);
  55     appendWidget(*sample_);
  56   }
  57
  58   setColorPair(fg, bg);
  59 }
  60
  61 void ColorPicker::setColorPair(int fg, int bg)
  62 {
  63   fg_combo_->setColor(fg);
  64   bg_combo_->setColor(bg);
  65
  66   if (sample_ != nullptr)
  67     sample_->setColors(fg, bg);
  68
  69   signal_colorpair_selected(*this, fg, bg);
  70 }
  71
  72 void ColorPicker::setText(const char *new_text)
  73 {
  74   label_->setText(new_text);
  75   if (new_text != nullptr)
  76     label_->setWidth(Curses::onScreenWidth(new_text) + 1);
  77   else
  78     label_->setWidth(0);
  79 }
  80
  81 void ColorPicker::onColorChanged(ComboBox &activator, int new_color)
  82 {
  83   int new_fg = fg_combo_->getColor();
  84   int new_bg = bg_combo_->getColor();
  85
  86   if (&activator == fg_combo_)
  87     new_fg = new_color;
  88   else
  89     new_bg = new_color;
  90
  91   setColorPair(new_fg, new_bg);
  92 }
  93
  94 ColorPicker::Sample::Sample(int w, int fg, int bg)
  95   : Widget(w, 1), color_(fg, bg)
  96 {
  97 }
  98
  99 int ColorPicker::Sample::draw(Curses::ViewPort area, Error &error)
 100 {
 101   int attrs;
 102   if (COLORSCHEME->getColorPair(color_, &attrs, error) != 0)
 103     return error.getCode();
 104
 105   DRAW(area.attrOn(attrs, error));
 106   DRAW(area.addString(1, 0, _(" SAMPLE "), error));
 107   DRAW(area.attrOff(attrs, error));
 108
 109   return 0;
 110 }
 111
 112 void ColorPicker::Sample::setColors(int fg, int bg)
 113 {
 114   color_.foreground = fg;
 115   color_.background = bg;
 116 }
 117
 118 } // namespace CppConsUI
 119
 120 // vim: set tabstop=2 shiftwidth=2 textwidth=80 expandtab: