dguihub.core.controls.textcontrol source code

1 /** DGui project file.
2 
3 Copyright: Trogu Antonio Davide 2011-2013
4 
5 License: $(HTTP boost.org/LICENSE_1_0.txt, Boost License 1.0).
6 
7 Authors: Trogu Antonio Davide
8 */
9 module dguihub.core.controls.textcontrol;
10 
11 public import dguihub.core.controls.subclassedcontrol;
12 
13 abstract class TextControl : SubclassedControl {
14    public Event!(Control, EventArgs) textChanged;
15 
16    public void appendText(string s) {
17       if (this.created) {
18          this.sendMessage(EM_REPLACESEL, true, cast(LPARAM)toUTFz!(wchar*)(s));
19       } else {
20          this._text ~= s;
21       }
22    }
23 
24    @property public final bool readOnly() {
25       return cast(bool)(this.getStyle() & ES_READONLY);
26    }
27 
28    @property public final void readOnly(bool b) {
29       this.setStyle(ES_READONLY, b);
30    }
31 
32    public void undo() {
33       this.sendMessage(EM_UNDO, 0, 0);
34    }
35 
36    public void cut() {
37       this.sendMessage(WM_CUT, 0, 0);
38    }
39 
40    public void copy() {
41       this.sendMessage(WM_COPY, 0, 0);
42    }
43 
44    public void paste() {
45       this.sendMessage(WM_PASTE, 0, 0);
46    }
47 
48    public void selectAll() {
49       this.sendMessage(EM_SETSEL, 0, -1);
50    }
51 
52    public void clear() {
53       this.sendMessage(WM_CLEAR, 0, 0);
54    }
55 
56    @property public bool modified() {
57       if (this.created) {
58          return cast(bool)this.sendMessage(EM_GETMODIFY, 0, 0);
59       }
60 
61       return false;
62    }
63 
64    @property public void modified(bool b) {
65       this.sendMessage(EM_SETMODIFY, b, 0);
66    }
67 
68    @property public int textLength() {
69       if (this.created) {
70          return getWindowTextLength(this._handle);
71       }
72 
73       return this._text.length;
74    }
75 
76    @property public final string selectedText() {
77       CHARRANGE chrg = void; //Inizializzata sotto
78 
79       this.sendMessage(EM_EXGETSEL, 0, cast(LPARAM)&chrg);
80       return this.text[chrg.cpMin .. chrg.cpMax];
81    }
82 
83    @property public final int selectionStart() {
84       CHARRANGE chrg = void; //Inizializzata sotto
85 
86       this.sendMessage(EM_EXGETSEL, 0, cast(LPARAM)&chrg);
87       return chrg.cpMin;
88    }
89 
90    @property public final int selectionLength() {
91       CHARRANGE chrg = void; //Inizializzata sotto
92 
93       this.sendMessage(EM_EXGETSEL, 0, cast(LPARAM)&chrg);
94       return chrg.cpMax - chrg.cpMin;
95    }
96 
97    protected override void createControlParams(ref CreateControlParams ccp) {
98       this.setStyle(WS_TABSTOP, true);
99       ccp.defaultBackColor = SystemColors.colorWindow;
100 
101       super.createControlParams(ccp);
102    }
103 
104    protected override void onReflectedMessage(ref Message m) {
105       if (m.msg == WM_COMMAND && HIWORD(m.wParam) == EN_CHANGE
106             && TextControl.hasBit(this._cBits, ControlBits.canNotify)) {
107          this.onTextChanged(EventArgs.empty);
108       }
109 
110       super.onReflectedMessage(m);
111    }
112 
113    protected override void onHandleCreated(EventArgs e) {
114       this.modified = false; // Force to 'False'
115 
116       super.onHandleCreated(e);
117    }
118 
119    protected void onTextChanged(EventArgs e) {
120       this.textChanged(this, e);
121    }
122 }