This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
/
SDL_uikitview.m
executable file
·426 lines (349 loc) · 11.4 KB
/
SDL_uikitview.m
OlderNewer
1
/*
2
Simple DirectMedia Layer
3
Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
21
22
23
#include "SDL_config.h"
#if SDL_VIDEO_DRIVER_UIKIT
24
25
26
27
28
29
30
31
32
33
#import "SDL_uikitview.h"
#include "../../events/SDL_keyboard_c.h"
#include "../../events/SDL_mouse_c.h"
#include "../../events/SDL_touch_c.h"
#if SDL_IPHONE_KEYBOARD
#import "keyinfotable.h"
#import "SDL_uikitappdelegate.h"
34
#import "SDL_uikitkeyboard.h"
35
36
37
38
39
#import "SDL_uikitwindow.h"
#endif
@implementation SDL_uikitview
40
41
- (void)dealloc
{
42
43
44
[super dealloc];
}
45
46
- (id)initWithFrame:(CGRect)frame
{
47
self = [super initWithFrame: frame];
48
49
50
#if SDL_IPHONE_KEYBOARD
[self initializeKeyboard];
51
#endif
52
53
54
55
56
57
58
59
60
#ifdef FIXED_MULTITOUCH
self.multipleTouchEnabled = YES;
SDL_Touch touch;
touch.id = 0; //TODO: Should be -1?
//touch.driverdata = SDL_malloc(sizeof(EventTouchData));
//EventTouchData* data = (EventTouchData*)(touch.driverdata);
61
62
touch.x_min = 0;
63
touch.x_max = 1;
64
65
touch.native_xres = touch.x_max - touch.x_min;
touch.y_min = 0;
66
touch.y_max = 1;
67
68
69
70
71
72
73
74
75
76
77
78
79
touch.native_yres = touch.y_max - touch.y_min;
touch.pressure_min = 0;
touch.pressure_max = 1;
touch.native_pressureres = touch.pressure_max - touch.pressure_min;
touchId = SDL_AddTouch(&touch, "IPHONE SCREEN");
#endif
return self;
}
80
81
82
83
84
85
86
87
88
89
90
- (CGPoint)touchLocation:(UITouch *)touch
{
CGPoint point = [touch locationInView: self];
CGRect frame = [self frame];
frame = CGRectApplyAffineTransform(frame, [self transform]);
point.x /= frame.size.width;
point.y /= frame.size.height;
return point;
}
91
92
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
93
94
95
96
97
NSEnumerator *enumerator = [touches objectEnumerator];
UITouch *touch = (UITouch*)[enumerator nextObject];
if (touch) {
CGPoint locationInView = [touch locationInView: self];
98
99
100
101
102
103
104
105
106
107
/* send moved event */
SDL_SendMouseMotion(NULL, 0, locationInView.x, locationInView.y);
/* send mouse down event */
SDL_SendMouseButton(NULL, SDL_PRESSED, SDL_BUTTON_LEFT);
}
#ifdef FIXED_MULTITOUCH
while(touch) {
108
CGPoint locationInView = [self touchLocation:touch];
109
110
#ifdef IPHONE_TOUCH_EFFICIENT_DANGEROUS
111
112
113
114
115
116
//FIXME: TODO: Using touch as the fingerId is potentially dangerous
//It is also much more efficient than storing the UITouch pointer
//and comparing it to the incoming event.
SDL_SendFingerDown(touchId, (long)touch,
SDL_TRUE, locationInView.x, locationInView.y,
1);
117
#else
118
119
120
121
122
123
124
125
126
int i;
for(i = 0; i < MAX_SIMULTANEOUS_TOUCHES; i++) {
if (finger[i] == NULL) {
finger[i] = touch;
SDL_SendFingerDown(touchId, i,
SDL_TRUE, locationInView.x, locationInView.y,
1);
break;
}
127
128
129
}
#endif
130
touch = (UITouch*)[enumerator nextObject];
131
132
133
134
}
#endif
}
135
136
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event
{
137
138
NSEnumerator *enumerator = [touches objectEnumerator];
UITouch *touch = (UITouch*)[enumerator nextObject];
139
140
141
142
143
144
145
146
if (touch) {
/* send mouse up */
SDL_SendMouseButton(NULL, SDL_RELEASED, SDL_BUTTON_LEFT);
}
#ifdef FIXED_MULTITOUCH
while(touch) {
147
CGPoint locationInView = [self touchLocation:touch];
148
149
#ifdef IPHONE_TOUCH_EFFICIENT_DANGEROUS
150
151
152
SDL_SendFingerDown(touchId, (long)touch,
SDL_FALSE, locationInView.x, locationInView.y,
1);
153
#else
154
155
156
157
158
159
160
161
162
int i;
for (i = 0; i < MAX_SIMULTANEOUS_TOUCHES; i++) {
if (finger[i] == touch) {
SDL_SendFingerDown(touchId, i,
SDL_FALSE, locationInView.x, locationInView.y,
1);
finger[i] = NULL;
break;
}
163
164
165
}
#endif
166
touch = (UITouch*)[enumerator nextObject];
167
168
169
170
}
#endif
}
171
172
- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event
{
173
174
175
176
177
178
179
180
/*
this can happen if the user puts more than 5 touches on the screen
at once, or perhaps in other circumstances. Usually (it seems)
all active touches are canceled.
*/
[self touchesEnded: touches withEvent: event];
}
181
182
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event
{
183
184
NSEnumerator *enumerator = [touches objectEnumerator];
UITouch *touch = (UITouch*)[enumerator nextObject];
185
186
187
188
189
190
191
192
193
194
if (touch) {
CGPoint locationInView = [touch locationInView: self];
/* send moved event */
SDL_SendMouseMotion(NULL, 0, locationInView.x, locationInView.y);
}
#ifdef FIXED_MULTITOUCH
while(touch) {
195
CGPoint locationInView = [self touchLocation:touch];
196
197
#ifdef IPHONE_TOUCH_EFFICIENT_DANGEROUS
198
199
200
SDL_SendTouchMotion(touchId, (long)touch,
SDL_FALSE, locationInView.x, locationInView.y,
1);
201
#else
202
203
204
205
206
207
208
209
int i;
for (i = 0; i < MAX_SIMULTANEOUS_TOUCHES; i++) {
if (finger[i] == touch) {
SDL_SendTouchMotion(touchId, i,
SDL_FALSE, locationInView.x, locationInView.y,
1);
break;
}
210
211
212
}
#endif
213
touch = (UITouch*)[enumerator nextObject];
214
215
216
217
218
219
220
221
222
223
}
#endif
}
/*
---- Keyboard related functionality below this line ----
*/
#if SDL_IPHONE_KEYBOARD
/* Is the iPhone virtual keyboard visible onscreen? */
224
225
- (BOOL)keyboardVisible
{
226
227
228
229
return keyboardVisible;
}
/* Set ourselves up as a UITextFieldDelegate */
230
231
- (void)initializeKeyboard
{
232
233
234
textField = [[UITextField alloc] initWithFrame: CGRectZero];
textField.delegate = self;
/* placeholder so there is something to delete! */
235
236
textField.text = @" ";
237
238
239
240
241
242
243
/* set UITextInputTrait properties, mostly to defaults */
textField.autocapitalizationType = UITextAutocapitalizationTypeNone;
textField.autocorrectionType = UITextAutocorrectionTypeNo;
textField.enablesReturnKeyAutomatically = NO;
textField.keyboardAppearance = UIKeyboardAppearanceDefault;
textField.keyboardType = UIKeyboardTypeDefault;
textField.returnKeyType = UIReturnKeyDefault;
244
245
textField.secureTextEntry = NO;
246
247
248
249
250
251
252
253
textField.hidden = YES;
keyboardVisible = NO;
/* add the UITextField (hidden) to our view */
[self addSubview: textField];
[textField release];
}
/* reveal onscreen virtual keyboard */
254
255
- (void)showKeyboard
{
256
257
258
259
260
keyboardVisible = YES;
[textField becomeFirstResponder];
}
/* hide onscreen virtual keyboard */
261
262
- (void)hideKeyboard
{
263
264
265
266
267
keyboardVisible = NO;
[textField resignFirstResponder];
}
/* UITextFieldDelegate method. Invoked when user types something. */
268
269
- (BOOL)textField:(UITextField *)_textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
270
271
272
273
274
275
276
277
278
if ([string length] == 0) {
/* it wants to replace text with nothing, ie a delete */
SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_DELETE);
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_DELETE);
}
else {
/* go through all the characters in the string we've been sent
and convert them to key presses */
int i;
279
for (i = 0; i < [string length]; i++) {
280
281
unichar c = [string characterAtIndex: i];
282
283
284
Uint16 mod = 0;
SDL_Scancode code;
285
286
287
288
289
290
291
292
293
294
295
if (c < 127) {
/* figure out the SDL_Scancode and SDL_keymod for this unichar */
code = unicharToUIKeyInfoTable[c].code;
mod = unicharToUIKeyInfoTable[c].mod;
}
else {
/* we only deal with ASCII right now */
code = SDL_SCANCODE_UNKNOWN;
mod = 0;
}
296
297
298
299
300
301
302
303
304
305
306
if (mod & KMOD_SHIFT) {
/* If character uses shift, press shift down */
SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_LSHIFT);
}
/* send a keydown and keyup even for the character */
SDL_SendKeyboardKey(SDL_PRESSED, code);
SDL_SendKeyboardKey(SDL_RELEASED, code);
if (mod & KMOD_SHIFT) {
/* If character uses shift, press shift back up */
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_LSHIFT);
307
}
308
309
310
311
312
313
314
}
SDL_SendKeyboardText([string UTF8String]);
}
return NO; /* don't allow the edit! (keep placeholder text there) */
}
/* Terminates the editing session */
315
316
- (BOOL)textFieldShouldReturn:(UITextField*)_textField
{
317
SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_RETURN);
318
SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_RETURN);
319
320
321
322
323
324
325
326
327
328
329
[self hideKeyboard];
return YES;
}
#endif
@end
/* iPhone keyboard addition functions */
#if SDL_IPHONE_KEYBOARD
330
static SDL_uikitview * getWindowView(SDL_Window * window)
331
{
332
if (window == NULL) {
333
SDL_SetError("Window does not exist");
334
return nil;
335
}
336
337
338
SDL_WindowData *data = (SDL_WindowData *)window->driverdata;
SDL_uikitview *view = data != NULL ? data->view : nil;
339
340
if (view == nil) {
341
342
SDL_SetError("Window has no view");
}
343
344
return view;
345
346
}
347
int SDL_iPhoneKeyboardShow(SDL_Window * window)
348
{
349
350
SDL_uikitview *view = getWindowView(window);
if (view == nil) {
351
return -1;
352
353
}
354
355
[view showKeyboard];
return 0;
356
357
}
358
int SDL_iPhoneKeyboardHide(SDL_Window * window)
359
{
360
361
SDL_uikitview *view = getWindowView(window);
if (view == nil) {
362
return -1;
363
364
}
365
366
367
[view hideKeyboard];
return 0;
}
368
369
370
371
372
SDL_bool SDL_iPhoneKeyboardIsShown(SDL_Window * window)
{
SDL_uikitview *view = getWindowView(window);
if (view == nil) {
373
374
return 0;
}
375
376
return view.keyboardVisible;
377
378
}
379
380
int SDL_iPhoneKeyboardToggle(SDL_Window * window)
{
381
382
SDL_uikitview *view = getWindowView(window);
if (view == nil) {
383
return -1;
384
385
}
386
387
if (SDL_iPhoneKeyboardIsShown(window)) {
SDL_iPhoneKeyboardHide(window);
388
389
}
else {
390
SDL_iPhoneKeyboardShow(window);
391
}
392
return 0;
393
394
395
396
397
398
}
#else
/* stubs, used if compiled without keyboard support */
399
400
int SDL_iPhoneKeyboardShow(SDL_Window * window)
{
401
402
403
404
SDL_SetError("Not compiled with keyboard support");
return -1;
}
405
406
int SDL_iPhoneKeyboardHide(SDL_Window * window)
{
407
408
409
410
SDL_SetError("Not compiled with keyboard support");
return -1;
}
411
412
SDL_bool SDL_iPhoneKeyboardIsShown(SDL_Window * window)
{
413
414
415
return 0;
}
416
417
int SDL_iPhoneKeyboardToggle(SDL_Window * window)
{
418
419
420
421
422
423
SDL_SetError("Not compiled with keyboard support");
return -1;
}
#endif /* SDL_IPHONE_KEYBOARD */
424
425
#endif /* SDL_VIDEO_DRIVER_UIKIT */
426
/* vi: set ts=4 sw=4 expandtab: */