source: network-game/client/Client/Textbox.cpp@ cdb4bec

Last change on this file since cdb4bec was e607c0f, checked in by dportnoy <dmp1488@…>, 12 years ago

The client uses nonblocking calls to check for server messages and textboxes can now process all the standard keyboard keys
  • Property mode set to 100644
File size: 4.4 KB
Line 
1#include "Textbox.h"
2
3#include <iostream>
4
5using namespace std;
6
7Textbox::Textbox(int x, int y, int width, int height, ALLEGRO_FONT *font) :
8 GuiComponent(x, y, width, height, font)
9{
10 str = "";
11 selected = false;
12 shiftPressed = false;
13
14 // populate the shift map
15 for(int i=0; i<26; i++)
16 shiftMap['a'+i] = 'A'+i;
17
18 shiftMap['1'] = '!';
19 shiftMap['2'] = '@';
20 shiftMap['3'] = '#';
21 shiftMap['4'] = '$';
22 shiftMap['5'] = '%';
23 shiftMap['6'] = '^';
24 shiftMap['7'] = '&';
25 shiftMap['8'] = '*';
26 shiftMap['9'] = '(';
27 shiftMap['0'] = ')';
28
29 shiftMap['`'] = '~';
30 shiftMap['-'] = '_';
31 shiftMap['='] = '+';
32 shiftMap['['] = '{';
33 shiftMap[']'] = '}';
34 shiftMap['\\'] = '|';
35 shiftMap[';'] = ':';
36 shiftMap['\''] = '\"';
37 shiftMap[','] = '<';
38 shiftMap['.'] = '>';
39 shiftMap['/'] = '?';
40 shiftMap[' '] = ' ';
41}
42
43Textbox::~Textbox(void)
44{
45}
46
47const string& Textbox::getStr() const
48{
49 return str;
50}
51
52void Textbox::clear(void)
53{
54 str.clear();
55}
56
57void Textbox::draw(ALLEGRO_DISPLAY *display)
58{
59 al_set_target_bitmap(bitmap);
60 al_clear_to_color(al_map_rgb(0, 0, 0));
61
62 int textWidth = al_get_text_width(font, str.c_str());
63 int fontHeight = al_get_font_line_height(font);
64
65 int textPos = 1;
66 if(textWidth > this->width)
67 textPos = this->width-textWidth-3;
68
69 al_draw_text(font, al_map_rgb(0, 255, 0), textPos, (this->height-fontHeight)/2, ALLEGRO_ALIGN_LEFT, str.c_str());
70 al_draw_rectangle(1, 1, this->width, this->height, al_map_rgb(0, 255, 0), 1);
71
72 al_set_target_bitmap(al_get_backbuffer(display));
73 al_draw_bitmap(bitmap, x, y, 0);
74}
75
76bool Textbox::handleEvent(ALLEGRO_EVENT& e)
77{
78 ALLEGRO_KEYBOARD_STATE keys;
79 al_get_keyboard_state(&keys);
80
81 if (e.type == ALLEGRO_EVENT_MOUSE_BUTTON_UP) {
82 if (e.mouse.button == 1) {
83 if (this->x < e.mouse.x && e.mouse.x < (this->x+this->width)
84 && this->y < e.mouse.y && e.mouse.y < (this->y+this->height))
85 {
86 selected = true;
87 return true;
88 }else
89 selected = false;
90 }
91
92 return false;
93 }
94
95 if (!selected)
96 return false;
97
98 if (e.type == ALLEGRO_EVENT_KEY_DOWN) {
99 char newChar = 0;
100
101 if (ALLEGRO_KEY_A <= e.keyboard.keycode && e.keyboard.keycode <= ALLEGRO_KEY_Z)
102 newChar = 'a'+e.keyboard.keycode-ALLEGRO_KEY_A;
103 else if (ALLEGRO_KEY_0 <= e.keyboard.keycode && e.keyboard.keycode <= ALLEGRO_KEY_9)
104 newChar = '0'+e.keyboard.keycode-ALLEGRO_KEY_0;
105 else {
106 switch(e.keyboard.keycode)
107 {
108 case ALLEGRO_KEY_TILDE:
109 newChar = '`';
110 break;
111 case ALLEGRO_KEY_MINUS:
112 newChar = '-';
113 break;
114 case ALLEGRO_KEY_EQUALS:
115 newChar = '=';
116 break;
117 case ALLEGRO_KEY_OPENBRACE:
118 newChar = '[';
119 break;
120 case ALLEGRO_KEY_CLOSEBRACE:
121 newChar = ']';
122 break;
123 case ALLEGRO_KEY_SEMICOLON:
124 newChar = ';';
125 break;
126 case ALLEGRO_KEY_QUOTE:
127 newChar = '\'';
128 break;
129 case ALLEGRO_KEY_BACKSLASH:
130 newChar = '\\';
131 break;
132 case ALLEGRO_KEY_COMMA:
133 newChar = ',';
134 break;
135 case ALLEGRO_KEY_FULLSTOP:
136 newChar = '.';
137 break;
138 case ALLEGRO_KEY_SLASH:
139 newChar = '/';
140 break;
141 case ALLEGRO_KEY_SPACE:
142 newChar = ' ';
143 break;
144 case ALLEGRO_KEY_BACKSPACE:
145 if (str.size() > 0)
146 {
147 str = str.substr(0, str.size()-1);
148 return true;
149 }
150 else
151 return false;
152 break;
153 case ALLEGRO_KEY_LSHIFT:
154 case ALLEGRO_KEY_RSHIFT:
155 shiftPressed = true;
156 break;
157 default:
158 cout << "unknown keycode: " << e.keyboard.keycode << endl;
159 break;
160 }
161 }
162
163 if (newChar != 0) {
164 if (al_key_down(&keys, ALLEGRO_KEY_LSHIFT) || al_key_down(&keys, ALLEGRO_KEY_RSHIFT))
165 newChar = shiftMap[newChar];
166
167 str.append(1, newChar);
168 return true;
169 }
170 }
171 else if (e.type == ALLEGRO_EVENT_KEY_UP) {
172 switch(e.keyboard.keycode)
173 {
174 case ALLEGRO_KEY_LSHIFT:
175 case ALLEGRO_KEY_RSHIFT:
176 shiftPressed = false;
177 break;
178 }
179 }
180
181 return false;
182}
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