summaryrefslogtreecommitdiff
path: root/src/gui/base/widgets/button.hpp
blob: 99e5db4f4ea4688cb20cc9c8b454bd8dff90967e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
/*
 *  The ManaPlus Client
 *  Copyright (C) 2011-2014  The ManaPlus Developers
 *
 *  This file is part of The ManaPlus Client.
 *
 *  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
 *  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, see <http://www.gnu.org/licenses/>.
 */

/*      _______   __   __   __   ______   __   __   _______   __   __
 *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
 *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
 *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
 *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
 *
 * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
 *
 *
 * Per Larsson a.k.a finalman
 * Olof Naessén a.k.a jansem/yakslem
 *
 * Visit: http://guichan.sourceforge.net
 *
 * License: (BSD)
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name of Guichan nor the names of its contributors may
 *    be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef GCN_BUTTON_HPP
#define GCN_BUTTON_HPP

#include <string>

#include "listeners/focuslistener.h"
#include "listeners/keylistener.h"
#include "listeners/mouselistener.h"

#include "gui/widgets/widget.h"

#include "render/graphics.h"

namespace gcn
{
    /**
     * An implementation of a regular clickable button. A button is capable of
     * displaying a caption. 
     *
     * If a button is clicked an action event will be sent to all action listener's 
     * of the button.
     *
     * @see ImageButton
     */
    class Button : public Widget,
                   public MouseListener,
                   public KeyListener,
                   public FocusListener
    {
    public:
        /**
         * Constructor.
         */
        explicit Button(const Widget2 *const widget);

        /**
         * Constructor. The button will be automatically resized
         * to fit the caption.
         *
         * @param caption The caption of the button.
         */
        Button(const Widget2 *const widget,
               const std::string& caption);

        A_DELETE_COPY(Button)

        /**
         * Sets the caption of the button. It's advisable to call
         * adjustSize after setting of the caption to adjust the
         * button's size to fit the caption.
         *
         * @param caption The caption of the button.
         * @see getCaption, adjustSize
         */
        void setCaption(const std::string& caption);

        /**
         * Gets the caption of the button.
         *
         * @return The caption of the button.
         */
        const std::string& getCaption() const;

        /**
         * Sets the alignment of the caption. The alignment is relative
         * to the center of the button.
         *
         * @param alignment The alignment of the caption.
         * @see getAlignment, Graphics
         */
        void setAlignment(Graphics::Alignment alignment);

        /**
         * Gets the alignment of the caption.
         *
         * @return The alignment of the caption.
         * @see setAlignment, Graphics
         */
        Graphics::Alignment getAlignment() const;

        /**
         * Sets the spacing between the border of the button and its caption.
         *
         * @param spacing The default value for spacing is 4 and can be changed 
         *                using this method.
         * @see getSpacing
         */
        void setSpacing(unsigned int spacing);

        /**
         * Gets the spacing between the border of the button and its caption.
         *
         * @return spacing.
         * @see setSpacing
         */
        unsigned int getSpacing() const;

        /**
         * Adjusts the button's size to fit the caption.
         */
        void adjustSize();


        // Inherited from FocusListener

        virtual void focusLost(const Event& event);

        // Inherited from MouseListener

        virtual void mousePressed(MouseEvent& mouseEvent) override;

        virtual void mouseEntered(MouseEvent& mouseEvent) override;

        virtual void mouseExited(MouseEvent& mouseEvent) override;

        virtual void mouseDragged(MouseEvent& mouseEvent) override;

    protected:
        /**
         * Checks if the button is pressed. Convenient method to use
         * when overloading the draw method of the button.
         *
         * @return True if the button is pressed, false otherwise.
         */
        bool isPressed() const;

        /**
         * Holds the caption of the button.
         */
        std::string mCaption;

        /**
         * True if the mouse is ontop of the button, false otherwise.
         */
        bool mHasMouse;

        /**
         * True if a key has been pressed, false otherwise.
         */
        bool mKeyPressed;

        /**
         * True if a mouse has been pressed, false otherwise.
         */
        bool mMousePressed;

        /**
         * Holds the alignment of the caption.
         */
        Graphics::Alignment mAlignment;

        /**
         * Holds the spacing between the border and the caption.
         */
        unsigned int mSpacing;
    };
}  // namespace gcn

#endif  // end GCN_BUTTON_HPP