summaryrefslogtreecommitdiff
path: root/scene/gui/line_edit.h
blob: 2ed63e7d50642737084c0f2af25384693a311e72 (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
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
/*************************************************************************/
/*  line_edit.h                                                          */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#ifndef LINE_EDIT_H
#define LINE_EDIT_H

#include "scene/gui/control.h"
#include "scene/gui/popup_menu.h"

class LineEdit : public Control {
	GDCLASS(LineEdit, Control);

public:
	enum Align {

		ALIGN_LEFT,
		ALIGN_CENTER,
		ALIGN_RIGHT,
		ALIGN_FILL
	};

	enum MenuItems {
		MENU_CUT,
		MENU_COPY,
		MENU_PASTE,
		MENU_CLEAR,
		MENU_SELECT_ALL,
		MENU_UNDO,
		MENU_REDO,
		MENU_MAX

	};

private:
	Align align;

	bool editable;
	bool pass;
	bool text_changed_dirty;

	String undo_text;
	String text;
	String placeholder;
	String placeholder_translated;
	String secret_character;
	float placeholder_alpha;
	String ime_text;
	Point2 ime_selection;

	bool selecting_enabled;

	bool context_menu_enabled;
	PopupMenu *menu;

	int cursor_pos;
	int window_pos;
	int max_length; // 0 for no maximum.

	int cached_width;
	int cached_placeholder_width;

	bool clear_button_enabled;

	bool shortcut_keys_enabled;

	bool virtual_keyboard_enabled = true;

	Ref<Texture2D> right_icon;

	struct Selection {
		int begin;
		int end;
		int cursor_start;
		bool enabled;
		bool creating;
		bool doubleclick;
		bool drag_attempt;
	} selection;

	struct TextOperation {
		int cursor_pos;
		int window_pos;
		int cached_width;
		String text;
	};
	List<TextOperation> undo_stack;
	List<TextOperation>::Element *undo_stack_pos;

	struct ClearButtonStatus {
		bool press_attempt;
		bool pressing_inside;
	} clear_button_status;

	bool _is_over_clear_button(const Point2 &p_pos) const;

	void _clear_undo_stack();
	void _clear_redo();
	void _create_undo_state();

	void _generate_context_menu();

	Timer *caret_blink_timer;

	void _text_changed();
	void _emit_text_change();
	bool expand_to_text_length;

	void update_cached_width();
	void update_placeholder_width();

	bool caret_blink_enabled;
	bool draw_caret;
	bool window_has_focus;

	void shift_selection_check_pre(bool);
	void shift_selection_check_post(bool);

	void selection_fill_at_cursor();
	void set_window_pos(int p_pos);

	void set_cursor_at_pixel_pos(int p_x);
	int get_cursor_pixel_pos();

	void _reset_caret_blink_timer();
	void _toggle_draw_caret();

	void clear_internal();
	void changed_internal();

	void _editor_settings_changed();

	void _gui_input(Ref<InputEvent> p_event);
	void _notification(int p_what);

protected:
	static void _bind_methods();

public:
	void set_align(Align p_align);
	Align get_align() const;

	virtual Variant get_drag_data(const Point2 &p_point) override;
	virtual bool can_drop_data(const Point2 &p_point, const Variant &p_data) const override;
	virtual void drop_data(const Point2 &p_point, const Variant &p_data) override;

	virtual CursorShape get_cursor_shape(const Point2 &p_pos) const override;

	void menu_option(int p_option);
	void set_context_menu_enabled(bool p_enable);
	bool is_context_menu_enabled();
	PopupMenu *get_menu() const;

	void select(int p_from = 0, int p_to = -1);
	void select_all();
	void selection_delete();
	void deselect();

	void delete_char();
	void delete_text(int p_from_column, int p_to_column);
	void set_text(String p_text);
	String get_text() const;
	void set_placeholder(String p_text);
	String get_placeholder() const;
	void set_placeholder_alpha(float p_alpha);
	float get_placeholder_alpha() const;
	void set_cursor_position(int p_pos);
	int get_cursor_position() const;
	void set_max_length(int p_max_length);
	int get_max_length() const;
	void append_at_cursor(String p_text);
	void clear();

	bool cursor_get_blink_enabled() const;
	void cursor_set_blink_enabled(const bool p_enabled);

	float cursor_get_blink_speed() const;
	void cursor_set_blink_speed(const float p_speed);

	void copy_text();
	void cut_text();
	void paste_text();
	void undo();
	void redo();

	void set_editable(bool p_editable);
	bool is_editable() const;

	void set_secret(bool p_secret);
	bool is_secret() const;

	void set_secret_character(const String &p_string);
	String get_secret_character() const;

	virtual Size2 get_minimum_size() const override;

	void set_expand_to_text_length(bool p_enabled);
	bool get_expand_to_text_length() const;

	void set_clear_button_enabled(bool p_enabled);
	bool is_clear_button_enabled() const;

	void set_shortcut_keys_enabled(bool p_enabled);
	bool is_shortcut_keys_enabled() const;

	void set_virtual_keyboard_enabled(bool p_enable);
	bool is_virtual_keyboard_enabled() const;

	void set_selecting_enabled(bool p_enabled);
	bool is_selecting_enabled() const;

	void set_right_icon(const Ref<Texture2D> &p_icon);
	Ref<Texture2D> get_right_icon();

	virtual bool is_text_field() const override;
	LineEdit();
	~LineEdit();
};

VARIANT_ENUM_CAST(LineEdit::Align);
VARIANT_ENUM_CAST(LineEdit::MenuItems);

#endif