source: golgotha/src/i4/gui/text_input.hh @ 80

Last change on this file since 80 was 80, checked in by Sam Hocevar, 11 years ago
  • Adding the Golgotha source code. Not sure what's going to be interesting in there, but since it's all public domain, there's certainly stuff to pick up.
File size: 4.0 KB
RevLine 
[80]1/********************************************************************** <BR>
2  This file is part of Crack dot Com's free source code release of
3  Golgotha. <a href="http://www.crack.com/golgotha_release"> <BR> for
4  information about compiling & licensing issues visit this URL</a>
5  <PRE> If that doesn't help, contact Jonathan Clark at
6  golgotha_source@usa.net (Subject should have "GOLG" in it)
7***********************************************************************/
8
9#ifndef TEXT_INPUT_HH
10#define TEXT_INPUT_HH
11
12#include "window/window.hh"
13#include "window/style.hh"
14#include "string/string.hh"
15#include "time/timedev.hh"
16
17class i4_text_change_notify_event : public i4_object_message_event_class
18{
19public:
20  i4_str *new_text;
21
22  i4_text_change_notify_event(void *object,
23                              i4_str *str)
24    : i4_object_message_event_class(object),
25      new_text(new i4_str(*str)) { }
26               
27  virtual i4_event *copy() { return new i4_text_change_notify_event(object, new_text); }
28  virtual dispatch_time when()  { return NOW; }
29  ~i4_text_change_notify_event() { delete new_text; }
30};
31
32
33class i4_query_text_input_class : public i4_query_message_event_class
34
35public:
36
37  i4_str *copy_of_data;
38
39  i4_query_text_input_class() { copy_of_data=0; }
40
41  virtual i4_event  *copy()
42  {
43    i4_query_text_input_class *t=new i4_query_text_input_class;
44    if (copy_of_data)
45      t->copy_of_data=new i4_str(*copy_of_data,copy_of_data->length()+1);
46    return t;
47  }
48
49  ~i4_query_text_input_class()
50  {
51    if (copy_of_data)
52      delete copy_of_data;
53  }
54
55} ;
56
57class i4_text_input_class : public i4_window_class
58{
59protected:
60  i4_event_handler_class *change_notify;
61  i4_str *st;
62  i4_font_class *font;
63  int max_width;
64
65  sw32 cursor_x;       // position of the cursor
66  sw32 left_x;         // how many characters to skip in string before drawing at left side
67
68  i4_bool need_cancel_blink;             // do we have a timer event currently?
69  i4_bool cursor_on;                     // this gets toggled by the timer event
70  i4_time_device_class::id blink_timer;  // if we have a time ever scheduled
71  i4_bool selecting;
72  i4_coord last_x,last_y;
73  i4_bool changed, sent_change;
74
75
76  sw32 hi_x1, hi_x2;   // hilight start and end
77  i4_graphical_style_class *style;
78  i4_bool selected;
79
80  // this will find the character the mouse is on, this should work for non-constantly spaced
81  // character strings as well
82  w32 mouse_to_cursor();
83  void request_blink();
84  void stop_blink();
85  void sustain_cursor();
86  void del_selected();
87  void move_cursor_right();
88  void move_cursor_left();
89  void move_cursor_end();
90
91  virtual void draw_deco(i4_draw_context_class &context);
92  void become_active();
93  void become_unactive();
94
95  void note_change()
96  {
97    changed=i4_T;
98    sent_change=i4_F;
99  }
100
101public: 
102  char *name() { return "text_input"; }
103
104  void send_to_parent(i4_event *ev)  {    parent->receive_event(ev);  }
105
106  i4_text_input_class(i4_graphical_style_class *style,
107                      const i4_const_str &default_string,
108                      w32 width,                         // width in pixels of window
109                      w32 max_width,
110                      i4_event_handler_class *change_notify=0,
111                      i4_font_class *font=0);            // uses style->normal_font by default
112
113
114
115  virtual void draw(i4_draw_context_class &context);
116  virtual void receive_event(i4_event *ev);
117
118  void change_text(const i4_const_str &new_st);
119  i4_str *get_edit_string() { return st; }          // don't delete this return string!
120  sw32 get_number();                                // assuming text is a proper numbe
121
122
123  ~i4_text_input_class();
124} ;
125
126
127i4_window_class *i4_create_text_input(i4_graphical_style_class *style,
128                                      const i4_const_str &default_string,
129                                      w32 width,            // width in pixels of window
130                                      w32 max_width);
131
132#endif
133
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