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Gui: Refactor IptKey; in particular, use SWING and SWT constants where possible; also handle modifers

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gnosygnu
2016-12-31 00:36:12 -05:00
parent 5c3e4287f0
commit c3d4f520de
7 changed files with 286 additions and 97 deletions
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173
150_gfui/src/gplx/gfui/kits/swts/Swt_core_lnrs.java
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@@ -65,78 +65,145 @@ class Swt_lnr_traverse implements Listener {
}
}
class Swt_lnr_key implements KeyListener {
public Swt_lnr_key(GxwElem elem) {this.elem = elem;} GxwElem elem;
// static int counter = 0;
public Swt_lnr_key(GxwElem elem) {this.elem = elem;} private GxwElem elem;
@Override public void keyPressed(KeyEvent ev) {
IptEvtDataKey ipt_data = XtoKeyData(ev);
IptEvtDataKey ipt_data = To_gfui(ev, Bool_.Y);
// cancel if handled; note order MUST be "delegate || ipt_data.Handled", not vice-versa
if (!elem.Host().KeyDownCbk(ipt_data) || ipt_data.Handled())
ev.doit = false;
}
@Override public void keyReleased(KeyEvent ev) {
IptEvtDataKey ipt_data = XtoKeyData(ev);
IptEvtDataKey ipt_data = To_gfui(ev, Bool_.N);
// cancel if handled; note order MUST be "delegate || ipt_data.Handled", not vice-versa
if (!elem.Host().KeyUpCbk(ipt_data) || ipt_data.Handled())
ev.doit = false;
}
IptEvtDataKey XtoKeyData(KeyEvent ev) {
private IptEvtDataKey To_gfui(KeyEvent ev, boolean is_keydown) {
// convert codes from SWT keycodes to SWING / .NET style; note that SWT uses keycode values similar to ASCII values
int val = ev.keyCode;
switch (val) {
case Byte_ascii.Cr: val = 10; break; // enter key is 13 whereas .net/swing is 10
// letters; lowercase keys are transmitted as ascii value, instead of key value; EX: "a": SWT=97; SWING=65
case Byte_ascii.Ltr_a: case Byte_ascii.Ltr_b: case Byte_ascii.Ltr_c: case Byte_ascii.Ltr_d: case Byte_ascii.Ltr_e:
case Byte_ascii.Ltr_f: case Byte_ascii.Ltr_g: case Byte_ascii.Ltr_h: case Byte_ascii.Ltr_i: case Byte_ascii.Ltr_j:
case Byte_ascii.Ltr_k: case Byte_ascii.Ltr_l: case Byte_ascii.Ltr_m: case Byte_ascii.Ltr_n: case Byte_ascii.Ltr_o:
case Byte_ascii.Ltr_p: case Byte_ascii.Ltr_q: case Byte_ascii.Ltr_r: case Byte_ascii.Ltr_s: case Byte_ascii.Ltr_t:
case Byte_ascii.Ltr_u: case Byte_ascii.Ltr_v: case Byte_ascii.Ltr_w: case Byte_ascii.Ltr_x: case Byte_ascii.Ltr_y: case Byte_ascii.Ltr_z:
val -= 32; // lowercase keys are transmitted as ascii value, instead of key value; EX: "a" is 97 instead of 65
val -= 32;
break;
case 39: val = IptKey_.Quote.Val(); break;
case 44: val = IptKey_.Comma.Val(); break;
case 45: val = IptKey_.Minus.Val(); break;
case 46: val = IptKey_.Period.Val(); break;
case 47: val = IptKey_.Slash.Val(); break;
case 59: val = IptKey_.Semicolon.Val(); break;
case 61: val = IptKey_.Equal.Val(); break;
case 91: val = IptKey_.OpenBracket.Val(); break;
case 93: val = IptKey_.CloseBracket.Val(); break;
case 96: val = IptKey_.Tick.Val(); break;
case 127: val = IptKey_.Delete.Val(); break;
case 16777217: val = IptKey_.Up.Val(); break;
case 16777218: val = IptKey_.Down.Val(); break;
case 16777219: val = IptKey_.Left.Val(); break;
case 16777220: val = IptKey_.Right.Val(); break;
case 16777221: val = IptKey_.PageUp.Val(); break;
case 16777222: val = IptKey_.PageDown.Val(); break;
case 16777223: val = IptKey_.Home.Val(); break;
case 16777224: val = IptKey_.End.Val(); break;
case 16777225: val = IptKey_.Insert.Val(); break;
case 16777226: val = IptKey_.F1.Val(); break;
case 16777227: val = IptKey_.F2.Val(); break;
case 16777228: val = IptKey_.F3.Val(); break;
case 16777229: val = IptKey_.F4.Val(); break;
case 16777230: val = IptKey_.F5.Val(); break;
case 16777231: val = IptKey_.F6.Val(); break;
case 16777232: val = IptKey_.F7.Val(); break;
case 16777233: val = IptKey_.F8.Val(); break;
case 16777234: val = IptKey_.F9.Val(); break;
case 16777235: val = IptKey_.F10.Val(); break;
case 16777236: val = IptKey_.F11.Val(); break;
case 16777237: val = IptKey_.F12.Val(); break;
case 16777259: val = IptKey_.Equal.Val(); break;
case 16777261: val = IptKey_.Minus.Val(); break;
case 16777298: val = IptKey_.CapsLock.Val(); break;
case 16777299: val = IptKey_.NumLock.Val(); break;
case 16777300: val = IptKey_.ScrollLock.Val(); break;
case 16777301: val = IptKey_.Pause.Val(); break;
case 16777303: val = IptKey_.PrintScreen.Val(); break;
case 327680: val = IptKey_.Insert.Val(); break;
// numpad numbers
case SWT.KEYPAD_0: val = IptKey_.Numpad_0.Val(); break;
case SWT.KEYPAD_1: val = IptKey_.Numpad_1.Val(); break;
case SWT.KEYPAD_2: val = IptKey_.Numpad_2.Val(); break;
case SWT.KEYPAD_3: val = IptKey_.Numpad_3.Val(); break;
case SWT.KEYPAD_4: val = IptKey_.Numpad_4.Val(); break;
case SWT.KEYPAD_5: val = IptKey_.Numpad_5.Val(); break;
case SWT.KEYPAD_6: val = IptKey_.Numpad_6.Val(); break;
case SWT.KEYPAD_7: val = IptKey_.Numpad_7.Val(); break;
case SWT.KEYPAD_8: val = IptKey_.Numpad_8.Val(); break;
case SWT.KEYPAD_9: val = IptKey_.Numpad_9.Val(); break;
// symbols; extended
case SWT.KEYPAD_MULTIPLY: val = IptKey_.Numpad_multiply.Val(); break;
case SWT.KEYPAD_ADD: val = IptKey_.Numpad_add.Val(); break;
case SWT.KEYPAD_SUBTRACT: val = IptKey_.Numpad_subtract.Val(); break;
case SWT.KEYPAD_DECIMAL: val = IptKey_.Numpad_decimal.Val(); break;
case SWT.KEYPAD_DIVIDE: val = IptKey_.Numpad_divide.Val(); break;
case SWT.KEYPAD_CR: val = IptKey_.Enter.Val(); break;
// function keys
case SWT.F1: val = IptKey_.F1.Val(); break;
case SWT.F2: val = IptKey_.F2.Val(); break;
case SWT.F3: val = IptKey_.F3.Val(); break;
case SWT.F4: val = IptKey_.F4.Val(); break;
case SWT.F5: val = IptKey_.F5.Val(); break;
case SWT.F6: val = IptKey_.F6.Val(); break;
case SWT.F7: val = IptKey_.F7.Val(); break;
case SWT.F8: val = IptKey_.F8.Val(); break;
case SWT.F9: val = IptKey_.F9.Val(); break;
case SWT.F10: val = IptKey_.F10.Val(); break;
case SWT.F11: val = IptKey_.F11.Val(); break;
case SWT.F12: val = IptKey_.F12.Val(); break;
// SWT=13; SWING=10; note that Cr maps to "enter key"
case Byte_ascii.Cr: val = IptKey_.Enter.Val(); break;
case SWT.INSERT: val = IptKey_.Insert.Val(); break;
case 127: val = IptKey_.Delete.Val(); break;
// meta
case SWT.PAUSE: val = IptKey_.Pause.Val(); break;
case SWT.PRINT_SCREEN: val = IptKey_.PrintScreen.Val(); break;
// nav keys
case SWT.ARROW_UP: val = IptKey_.Up.Val(); break;
case SWT.ARROW_DOWN: val = IptKey_.Down.Val(); break;
case SWT.ARROW_LEFT: val = IptKey_.Left.Val(); break;
case SWT.ARROW_RIGHT: val = IptKey_.Right.Val(); break;
case SWT.PAGE_UP: val = IptKey_.PageUp.Val(); break;
case SWT.PAGE_DOWN: val = IptKey_.PageDown.Val(); break;
case SWT.HOME: val = IptKey_.Home.Val(); break;
case SWT.END: val = IptKey_.End.Val(); break;
// locks
case SWT.CAPS_LOCK: val = IptKey_.CapsLock.Val(); break;
case SWT.NUM_LOCK: val = IptKey_.NumLock.Val(); break;
case SWT.SCROLL_LOCK: val = IptKey_.ScrollLock.Val(); break;
// symbols; ASCII; no SWT const
case 39: val = IptKey_.Quote.Val(); break;
case 44: val = IptKey_.Comma.Val(); break;
case 45: val = IptKey_.Minus.Val(); break;
case 46: val = IptKey_.Period.Val(); break;
case 47: val = IptKey_.Slash.Val(); break;
case 59: val = IptKey_.Semicolon.Val(); break;
case 61: val = IptKey_.Equal.Val(); break;
case 91: val = IptKey_.OpenBracket.Val(); break;
case 93: val = IptKey_.CloseBracket.Val(); break;
case 96: val = IptKey_.Tick.Val(); break;
// modifiers
case SWT.CTRL: val = IptKey_.Ctrl.Val(); break;
case SWT.ALT: val = IptKey_.Alt.Val(); break;
case SWT.SHIFT: val = IptKey_.Shift.Val(); break;
}
if (Has_ctrl(ev.stateMask)) val |= IptKey_.KeyCode_Ctrl;
if (Bitmask_.Has_int(ev.stateMask, IptKey_.KeyCode_Shift)) val |= IptKey_.KeyCode_Alt;
if (Bitmask_.Has_int(ev.stateMask, IptKey_.KeyCode_Ctrl)) val |= IptKey_.KeyCode_Shift;
// Tfds.Write(String_.Format("val={4} keyCode={0} stateMask={1} keyLocation={2} character={3}", ev.keyCode, ev.stateMask, ev.keyLocation, ev.character, val));
// handle mod keys
val = Handle_modifier(ev, is_keydown, val, SWT.CTRL , IptKey_.Ctrl.Val());
val = Handle_modifier(ev, is_keydown, val, SWT.ALT , IptKey_.Alt.Val());
val = Handle_modifier(ev, is_keydown, val, SWT.SHIFT , IptKey_.Shift.Val());
// Tfds.Write(String_.Format("val={0} keydown={1} keyCode={2} stateMask={3} keyLocation={4} character={5}", val, is_keydown, ev.keyCode, ev.stateMask, ev.keyLocation, ev.character));
return IptEvtDataKey.int_(val);
}
public static boolean Has_ctrl(int val) {return Bitmask_.Has_int(val, IptKey_.KeyCode_Alt);} // NOTE:SWT's ctrl constant is different from SWING's
private static int Handle_modifier(KeyEvent ev, boolean is_keydown, int val, int swt, int swing) {
// Conversion table for debugging
//
// -------------------------
// | code | SWT | SWING |
// |-------|-------|-------|
// | 65536 | ALT | SHIFT |
// |131072 | SHIFT | CTRL |
// |262144 | CTRL | ALT |
// -------------------------
// Also, when debugging, note that ev.stateMask is always the value at the start of the event
//
// For example, if ctrl is pressed and nothing is held
// * if is_keydown = y, then ev.stateMask is 0 (none)
// * if is_keydown = n, then ev.stateMask is 262144 (ctrl)
// Note that ev.keyCode is 262144 (ctrl) in both examples
//
// However, if ctrl is pressed and shift is already held:
// * if is_keydown = y, then ev.stateMask is 65536 (shift)
// * if is_keydown = n, then ev.stateMask is 327680 (shift + ctrl)
// Note that ev.keyCode is 262144 (ctrl) in both examples as well.
// if SWT modifier is present, return val with SWING modifier; else, just return val
return Bitmask_.Has_int(ev.stateMask, swt) ? val | swing : val;
}
public static boolean Has_ctrl(int val) {return Bitmask_.Has_int(val, SWT.CTRL);}
}
class Swt_lnr_mouse implements MouseListener {
public Swt_lnr_mouse(GxwElem elem) {this.elem = elem;} GxwElem elem;