ui/widget/color-entry.cpp

	color-entry.cpp revision e1f71774e8765a6a85edc11cf7520a1643ef1025
2N/A/** @file
2N/A * Entry widget for typing color value in css form
2N/A *//*
2N/A * Authors:
2N/A *   Tomasz Boczkowski <penginsbacon@gmail.com>
2N/A *
2N/A * Copyright (C) 2014 Authors
2N/A * Released under GNU GPL, read the file 'COPYING' for more information
2N/A */
2N/A
2N/A#ifdef HAVE_CONFIG_H
2N/A# include <config.h>
2N/A#endif
2N/A
2N/A#if GLIBMM_DISABLE_DEPRECATED && HAVE_GLIBMM_THREADS_H
2N/A#include <glibmm/threads.h>
2N/A#endif
2N/A
2N/A#include <iomanip>
2N/A#include <glibmm/i18n.h>
2N/A
2N/A#include "color-entry.h"
2N/A
2N/Anamespace Inkscape {
2N/Anamespace UI {
2N/Anamespace Widget {
2N/A
2N/AColorEntry::ColorEntry(SelectedColor &color)
2N/A    : _color(color)
2N/A    , _updating(false)
2N/A{
2N/A    _color_changed_connection = color.signal_changed.connect(sigc::mem_fun(this, &ColorEntry::_onColorChanged));
2N/A    _color_dragged_connection = color.signal_dragged.connect(sigc::mem_fun(this, &ColorEntry::_onColorChanged));
2N/A    _onColorChanged();
2N/A
2N/A    set_max_length(8);
2N/A    set_width_chars(8);
2N/A    set_tooltip_text(_("Hexadecimal RGBA value of the color"));
2N/A}
2N/A
2N/AColorEntry::~ColorEntry() {
2N/A    _color_changed_connection.disconnect();
2N/A    _color_dragged_connection.disconnect();
2N/A}
2N/A
2N/Avoid ColorEntry::on_changed() {
2N/A    if (_updating) {
2N/A        return;
2N/A    }
2N/A
    Glib::ustring text = get_text();
    bool changed = false;

    //Coerce the value format to eight hex digits
    if (!text.empty() && text[0] == '#') {
        changed = true;
        text.erase(0, 1);
        if (text.size() == 6) {
            // it was a standard RGB hex
            unsigned int alph = SP_COLOR_F_TO_U(_color.alpha());
            Glib::ustring tmp = Glib::ustring::format(std::hex, std::setw(2), std::setfill(L'0'), alph);
            text += tmp;
        }
    }

    gchar* str = g_strdup(text.c_str());
    gchar* end = 0;
    guint64 rgba = g_ascii_strtoull(str, &end, 16);
    if (end != str) {
        ptrdiff_t len = end - str;
        if (len < 8) {
            rgba = rgba << (4 * (8 - len));
        }
        if (changed) {
            set_text(str);
        }
        SPColor color(rgba);
        _color.setColorAlpha(color, SP_RGBA32_A_F(rgba));
    }
    g_free(str);
}


void ColorEntry::_onColorChanged() {
    SPColor color = _color.color();
    gdouble alpha = _color.alpha();

    guint32 rgba = color.toRGBA32( alpha );
    Glib::ustring text = Glib::ustring::format(std::hex, std::setw(8), std::setfill(L'0'), rgba);

    Glib::ustring old_text = get_text();
    if (old_text != text) {
        _updating = true;
        set_text(text);
        _updating = false;
    }
}

}
}
}
/*
  Local Variables:
  mode:c++
  c-file-style:"stroustrup"
  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
  indent-tabs-mode:nil
  fill-column:99
  End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :