cppconsui/ColorPickerComboBox.cpp

   1 /*
   2  * Copyright (C) 2012 Mark Pustjens <pustjens@dds.nl>
   3  * Copyright (C) 2012-2015 Petr Pavlu <setup@dagobah.cz>
   4  *
   5  * This file is part of CenterIM.
   6  *
   7  * CenterIM is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * CenterIM is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 /**
  23  * @file
  24  * ColorPickerComboBox class implementation.
  25  *
  26  * @ingroup cppconsui
  27  */
  28
  29 #include "ColorPickerComboBox.h"
  30
  31 #include <algorithm>
  32 #include "gettext.h"
  33
  34 /* This is an invalid color number that is used for the "More..." button in
  35  * ColorPickerComboBox. */
  36 #define COLOR_MORE (-2)
  37
  38 // width of the drop-down menu
  39 #define MENU_WIDTH 12
  40
  41 namespace CppConsUI {
  42
  43 ColorPickerComboBox::ColorPickerComboBox(int w, int color)
  44   : ComboBox(w, 1), selected_color(color)
  45 #ifdef COLORPICKER_256COLOR
  46     ,
  47     colorpicker(NULL)
  48 #endif // COLORPICKER_256COLOR
  49 {
  50   // add ANSI colors
  51   int colors = std::min(Curses::NUM_DEFAULT_COLORS, Curses::getColorCount());
  52   for (int i = 0; i < colors; i++)
  53     addOption(NULL, i);
  54
  55   // add options for default color and to open the 256 color dialog
  56   addOption(NULL, Curses::Color::DEFAULT);
  57 #ifdef COLORPICKER_256COLOR
  58   addOption(_("More..."), COLOR_MORE);
  59 #endif // COLORPICKER_256COLOR
  60
  61   // set initial selection
  62   setSelectedByData(color);
  63 }
  64
  65 ColorPickerComboBox::~ColorPickerComboBox()
  66 {
  67 #ifdef COLORPICKER_256COLOR
  68   if (colorpicker)
  69     colorpicker->close();
  70 #endif // COLORPICKER_256COLOR
  71 }
  72
  73 void ColorPickerComboBox::setColor(int new_color)
  74 {
  75   if (new_color < Curses::Color::DEFAULT ||
  76     new_color >= Curses::getColorCount()) {
  77     // an invalid color was specified, use the default color
  78     new_color = Curses::Color::DEFAULT;
  79   }
  80
  81   if (new_color == selected_color)
  82     return;
  83
  84   selected_color = new_color;
  85
  86 #ifdef COLORPICKER_256COLOR
  87   if (selected_color >= Curses::Color::DEFAULT &&
  88     selected_color < Curses::NUM_DEFAULT_COLORS)
  89     setSelectedByData(selected_color);
  90   else
  91     setSelectedByData(COLOR_MORE);
  92 #else
  93   setSelectedByData(selected_color);
  94 #endif // COLORPICKER_256COLOR
  95 }
  96
  97 int ColorPickerComboBox::draw(Curses::ViewPort area, Error &error)
  98 {
  99   int attrs;
 100   if (has_focus) {
 101     DRAW(getAttributes(ColorScheme::PROPERTY_BUTTON_FOCUS, &attrs, error));
 102     attrs |= Curses::Attr::REVERSE;
 103   }
 104   else
 105     DRAW(getAttributes(ColorScheme::PROPERTY_BUTTON_NORMAL, &attrs, error));
 106
 107   int color = selected_color;
 108
 109   DRAW(area.attrOn(attrs, error));
 110   DRAW(area.fill(attrs, 0, 0, real_width, 1, error));
 111   DRAW(area.addChar(0, 0, '[', error));
 112   DRAW(area.addChar(real_width - 1, 0, ']', error));
 113   DRAW(area.attrOff(attrs, error));
 114
 115   if (selected_color == Curses::Color::DEFAULT)
 116     DRAW(area.addString(1, 0, _("DEFAULT"), error));
 117   else {
 118     ColorScheme::Color c(Curses::Color::DEFAULT, color);
 119     int colorpair;
 120     DRAW(COLORSCHEME->getColorPair(c, &colorpair, error));
 121     DRAW(area.attrOn(colorpair, error));
 122     DRAW(area.fill(colorpair, 1, 0, real_width - 2, 1, error));
 123     DRAW(area.attrOff(colorpair, error));
 124   }
 125
 126   return 0;
 127 }
 128
 129 void ColorPickerComboBox::onDropDown(Button & /*activator*/)
 130 {
 131   dropdown = new MenuWindow(*this, MENU_WIDTH, AUTOSIZE);
 132   dropdown->signal_close.connect(
 133     sigc::mem_fun(this, &ColorPickerComboBox::dropDownClose));
 134
 135   int i;
 136   ComboBoxEntries::iterator j;
 137   for (i = 0, j = options.begin(); j != options.end(); i++, j++) {
 138     Button *b;
 139     if (j->data == COLOR_MORE) {
 140       // add the "More..." button
 141       b = dropdown->appendItem(j->title,
 142         sigc::bind(sigc::mem_fun(this, &ColorPickerComboBox::dropDownOk), i));
 143     }
 144     else {
 145       // normal color button
 146       b = new ColorButton(j->data);
 147       dropdown->appendWidget(*b);
 148       b->signal_activate.connect(
 149         sigc::bind(sigc::mem_fun(this, &ColorPickerComboBox::dropDownOk), i));
 150     }
 151     if (i == selected_entry)
 152       b->grabFocus();
 153   }
 154
 155   dropdown->show();
 156 }
 157
 158 void ColorPickerComboBox::dropDownOk(Button & /*activator*/, int new_entry)
 159 {
 160   dropdown->close();
 161
 162 #ifdef COLORPICKER_256COLOR
 163   if (options[new_entry].data != COLOR_MORE) {
 164     setColor(options[new_entry].data);
 165     return;
 166   }
 167
 168   // the "More..." button was selected, display the color picker dialog
 169   // @todo Initialize the color picker dialog with a selected color.
 170   colorpicker = new ColorPickerDialog("", 0, 0);
 171   colorpicker->signal_response.connect(
 172     sigc::mem_fun(this, &ColorPickerComboBox::colorPickerOk));
 173   colorpicker->signal_close.connect(
 174     sigc::mem_fun(this, &ColorPickerComboBox::colorPickerClose));
 175   colorpicker->show();
 176 #else
 177   setColor(options[new_entry].data);
 178 #endif // COLORPICKER_256COLOR
 179 }
 180
 181 #ifdef COLORPICKER_256COLOR
 182 void ColorPickerComboBox::colorPickerOk(ColorPickerDialog &activator,
 183   AbstractDialog::ResponseType response, int new_color)
 184 {
 185   if (response != AbstractDialog::RESPONSE_OK)
 186     return;
 187
 188   // selected option didn't change
 189   if (new_color == selected_color)
 190     return;
 191
 192   setColor(new_color);
 193 }
 194
 195 void ColorPickerComboBox::colorPickerClose(Window & /*window*/)
 196 {
 197   colorpicker = NULL;
 198 }
 199 #endif // COLORPICKER_256COLOR
 200
 201 void ColorPickerComboBox::setSelected(int new_entry)
 202 {
 203   ComboBox::setSelected(new_entry);
 204
 205   selected_color = options[new_entry].data;
 206   signal_color_changed(*this, selected_color);
 207 }
 208
 209 ColorPickerComboBox::ColorButton::ColorButton(int color_)
 210   : Button(MENU_WIDTH - 2, 1, ""), color(color_)
 211 {
 212 }
 213
 214 int ColorPickerComboBox::ColorButton::draw(Curses::ViewPort area, Error &error)
 215 {
 216   int attrs;
 217   if (has_focus) {
 218     DRAW(getAttributes(ColorScheme::PROPERTY_BUTTON_FOCUS, &attrs, error));
 219     attrs |= Curses::Attr::REVERSE;
 220   }
 221   else
 222     DRAW(getAttributes(ColorScheme::PROPERTY_BUTTON_NORMAL, &attrs, error));
 223
 224   DRAW(area.attrOn(attrs, error));
 225   DRAW(area.fill(attrs, 0, 0, real_width, 1, error));
 226   DRAW(area.addChar(0, 0, '[', error));
 227   DRAW(area.addChar(real_width - 1, 0, ']', error));
 228   DRAW(area.attrOff(attrs, error));
 229
 230   if (color == Curses::Color::DEFAULT)
 231     DRAW(area.addString(1, 0, _("DEFAULT "), error));
 232   else {
 233     ColorScheme::Color c(Curses::Color::DEFAULT, color);
 234     int colorpair;
 235     DRAW(COLORSCHEME->getColorPair(c, &colorpair, error));
 236     DRAW(area.attrOn(colorpair, error));
 237     DRAW(area.fill(colorpair, 1, 0, real_width - 2, 1, error));
 238     DRAW(area.attrOff(colorpair, error));
 239   }
 240
 241   return 0;
 242 }
 243
 244 } // namespace CppConsUI
 245
 246 /* vim: set tabstop=2 shiftwidth=2 textwidth=80 expandtab : */