aboutsummaryrefslogtreecommitdiff
path: root/engines/glk/frotz/windows.h
blob: f24be2d63611214a5f17ce83c64ad207770a2afb (plain)
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
/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 GLK_FROTZ_WINDOWS
#define GLK_FROTZ_WINDOWS

#include "glk/windows.h"
#include "glk/frotz/frotz_types.h"

namespace Glk {
namespace Frotz {

#include "glk/windows.h"
#include "glk/utils.h"

enum WindowProperty {
	Y_POS = 0, X_POS = 1, Y_SIZE = 2, X_SIZE = 3, Y_CURSOR = 4, X_CURSOR = 5,
	LEFT_MARGIN = 6, RIGHT_MARGIN = 7, NEWLINE_INTERRUPT = 8, INTERRUPT_COUNTDOWN = 9,
	TEXT_STYLE = 10, COLOUR_DATA = 11, FONT_NUMBER = 12, FONT_SIZE = 13, ATTRIBUTES = 14,
	LINE_COUNT = 15, TRUE_FG_COLOR = 16, TRUE_BG_COLOR = 17
};

class Windows;

/**
 * Represents one of the virtual windows
 */
class Window {
	friend class Windows;

	/**
	 * Stub class for accessing window properties via the square brackets operator
	 */
	class PropertyAccessor {
	private:
		Window *_owner;
		WindowProperty _prop;
	public:
		/**
		 * Constructor
		 */
		PropertyAccessor(Window *owner, WindowProperty prop) : _owner(owner), _prop(prop) {}

		/**
		 * Get
		 */
		operator uint() const {
			return _owner->getProperty(_prop);
		}

		/**
		 * Set
		 */
		PropertyAccessor &operator=(uint val) {
			_owner->setProperty(_prop, val);
			return *this;
		}
	};
private:
	Windows *_windows;
	winid_t _win;
	uint _properties[TRUE_BG_COLOR + 1];
private:
	/**
	 * Get a property value
	 */
	const uint &getProperty(WindowProperty propType);

	/**
	 * Set a property value
	 */
	void setProperty(WindowProperty propType, uint value);

	/**
	 * Called when trying to reposition or resize windows. Does special handling for the lower window
	 */
	void checkRepositionLower();

	/**
	 * Updates the local window properties based on an attached Glk window
	 */
	void update();
public:
	/**
	 * Constructor
	 */
	Window();

	/**
	 * Assignment operator
	 */
	Window &operator=(winid_t win) {
		_win = win;
		return *this;
	}

	/**
	 * Cast operator for getting a Glk window
	 */
	operator winid_t() const {
		assert(_win);
		return _win;
	}

	/**
	 * Cast operator for testing if the window has a proper Glk window attached to it
	 */
	operator bool() const { return _win != nullptr; }

	/**
	 * Property accessor
	 */
	PropertyAccessor operator[](WindowProperty propType) { return PropertyAccessor(this, propType); }

	/**
	 * Set the window size
	 */
	void setSize(const Point &newSize);

	/**
	 * Set the position of a window
	 */
	void setPosition(const Point &newPos);

	/**
	 * Set the cursor position
	 */
	void setCursor(const Point &newPos);
};

/**
 * Windows manager
 */
class Windows {
private:
	Window _windows[8];
public:
	winid_t _background;
	Window &_lower;
	Window &_upper;
	int _cwin;
public:
	/**
	 * Constructor
	 */
	Windows();

	/**
	 * Returns the number of allowable windows
	 */
	size_t size() const;

	/**
	 * Array access
	 */
	Window &operator[](uint idx);

	/**
	 * Setup the screen
	 */
	void setup(bool isVersion6);

	/**
	 * Set current window
	 */
	void setWindow(int win);

	/**
	 * Get the current window pointer
	 */
	winid_t currWin() const {
		assert(_windows[_cwin]._win);
		return _windows[_cwin]._win;
	}
};

} // End of namespace Frotz
} // End of namespace Glk

#endif