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
|
/* Copyright (C) 2015 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. 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.
*
* 0 A.D. 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 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
/*
GUI Object - Drop Down (list)
--Overview--
Works just like a list-box, but it hides
all the elements that aren't selected. They
can be brought up by pressing the control.
--More info--
Check GUI.h
*/
#ifndef INCLUDED_CDROPDOWN
#define INCLUDED_CDROPDOWN
#include "GUI.h"
#include "CList.h"
/**
* Drop Down
*
* The control can be pressed, but we will not inherent
* this behavior from IGUIButtonBehavior, because when
* you press this control, the list with elements will
* immediately appear, and not first after release
* (which is the whole gist of the IGUIButtonBehavior).
*/
class CDropDown : public CList
{
GUI_OBJECT(CDropDown)
public:
CDropDown();
virtual ~CDropDown();
// virtual void ResetStates() { IGUIButtonBehavior::ResetStates(); }
/**
* @see IGUIObject#HandleMessage()
*/
virtual void HandleMessage(SGUIMessage& Message);
/**
* Handle events manually to catch keyboard inputting.
*/
virtual InReaction ManuallyHandleEvent(const SDL_Event_* ev);
/**
* Draws the Button
*/
virtual void Draw();
// This is one of the few classes we actually need to redefine this function
// this is because the size of the control changes whether it is open
// or closed.
virtual bool MouseOver();
virtual float GetBufferedZ() const;
protected:
/**
* Sets up text, should be called every time changes has been
* made that can change the visual.
*/
void SetupText();
// Sets up the cached GetListRect. Decided whether it should
// have a scrollbar, and so on.
virtual void SetupListRect();
// Specify a new List rectangle.
virtual CRect GetListRect() const;
/**
* Placement of text.
*/
CPos m_TextPos;
// Is the dropdown opened?
bool m_Open;
// I didn't cache this at first, but it's just as easy as caching
// m_CachedActualSize, so I thought, what the heck it's used a lot.
CRect m_CachedListRect;
// Hide scrollbar when it's not needed
bool m_HideScrollBar;
// Not necessarily the element that is selected, this is just
// which element should be highlighted. When opening the dropdown
// it is set to "selected", but then when moving the mouse it will
// change.
int m_ElementHighlight;
// Stores any text entered by the user for quick access to an element
// (ie if you type "acro" it will take you to acropolis).
std::string m_InputBuffer;
// used to know if we want to restart anew or add to m_inputbuffer.
double m_TimeOfLastInput;
};
#endif // INCLUDED_CDROPDOWN
|
