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/*
* Copyright (C) 2004-2016 by the Widelands Development Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef WL_UI_BASIC_CHECKBOX_H
#define WL_UI_BASIC_CHECKBOX_H
#include <boost/signals2.hpp>
#include "graphic/color.h"
#include "ui_basic/panel.h"
constexpr int kStateboxSize = 20;
namespace UI {
/**
* Virtual base class providing a box that can be checked or unchecked.
* Serves as base for Checkbox and Radiobutton.
*/
struct Statebox : public Panel {
/**
* Pictorial Statebox
*/
Statebox(Panel* parent,
Point,
const Image* pic,
const std::string& tooltip_text = std::string());
/**
* Textual Statebox
* If width is set to 0, the checkbox will set its width automatically.
* Otherwise, it will take up multiple lines if necessary (automatic height).
*/
Statebox(Panel* parent,
Point,
const std::string& label_text,
const std::string& tooltip_text = std::string(),
uint32_t width = 0);
~Statebox();
boost::signals2::signal<void()> changed;
boost::signals2::signal<void(bool)> changedto;
boost::signals2::signal<void(bool)> clickedto; // same as changedto but only called when clicked
void set_enabled(bool enabled);
bool get_state() const {
return flags_ & Is_Checked;
}
void set_state(bool on);
void set_owns_custopicture_() {
assert(flags_ & Has_Custom_Picture);
set_flags(Owns_Custom_Picture, true);
}
// Drawing and event handlers
void draw(RenderTarget&) override;
void handle_mousein(bool inside) override;
bool handle_mousepress(uint8_t btn, int32_t x, int32_t y) override;
bool handle_mouserelease(uint8_t btn, int32_t x, int32_t y) override;
bool handle_mousemove(uint8_t, int32_t, int32_t, int32_t, int32_t) override;
private:
virtual void clicked() = 0;
enum Flags {
Is_Highlighted = 0x01,
Is_Enabled = 0x02,
Is_Checked = 0x04,
Has_Custom_Picture = 0x08,
Owns_Custom_Picture = 0x10
};
uint8_t flags_;
void set_flags(uint8_t const flags, bool const enable) {
flags_ &= ~flags;
if (enable)
flags_ |= flags;
}
const Image* pic_graphics_;
const Image* rendered_text_;
};
/**
* A checkbox is a simplistic panel which consists of just a small box which
* can be either checked (on) or unchecked (off)
* A checkbox only differs from a Statebox in that clicking on it toggles the
* state
*/
struct Checkbox : public Statebox {
/**
* Pictorial Checkbox
*/
Checkbox(Panel* const parent,
Point const p,
const Image* pic,
const std::string& tooltip_text = std::string())
: Statebox(parent, p, pic, tooltip_text) {
}
/**
* Textual Checkbox
* If width is set to 0, the checkbox will set its width automatically.
* Otherwise, it will take up multiple lines if necessary (automatic height).
*/
Checkbox(Panel* const parent,
Point const p,
const std::string& label_text,
const std::string& tooltip_text = std::string(),
uint32_t width = 0)
: Statebox(parent, p, label_text, tooltip_text, width) {
}
private:
void clicked() override;
};
}
#endif // end of include guard: WL_UI_BASIC_CHECKBOX_H
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