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https://github.com/yawut/SDL.git
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435 lines
10 KiB
Objective-C
435 lines
10 KiB
Objective-C
/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#import "SDL_uikitview.h"
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#include "../../events/SDL_keyboard_c.h"
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#include "../../events/SDL_mouse_c.h"
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#include "../../events/SDL_touch_c.h"
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#if SDL_IPHONE_KEYBOARD
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#import "keyinfotable.h"
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#import "SDL_uikitappdelegate.h"
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#import "SDL_uikitwindow.h"
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#endif
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@implementation SDL_uikitview
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- (void)dealloc {
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#if SDL_IPHONE_KEYBOARD
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[textField release];
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#endif
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[super dealloc];
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}
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- (id)initWithFrame:(CGRect)frame {
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self = [super initWithFrame: frame];
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#if SDL_IPHONE_KEYBOARD
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[self initializeKeyboard];
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#endif
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#ifdef FIXED_MULTITOUCH
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SDL_Touch touch;
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touch.id = 0; //TODO: Should be -1?
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//touch.driverdata = SDL_malloc(sizeof(EventTouchData));
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//EventTouchData* data = (EventTouchData*)(touch.driverdata);
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touch.x_min = 0;
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touch.x_max = frame.size.width;
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touch.xres = touch.x_max - touch.x_min;
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touch.y_min = 0;
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touch.y_max = frame.size.height;
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touch.yres = touch.y_max - touch.y_min;
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touch.pressure_min = 0;
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touch.pressure_max = 1;
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touch.pressureres = touch.pressure_max - touch.pressure_min;
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touchId = SDL_AddTouch(&touch, "IPHONE SCREEN");
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#endif
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return self;
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}
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- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
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NSEnumerator *enumerator = [touches objectEnumerator];
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UITouch *touch = (UITouch*)[enumerator nextObject];
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//NSLog("Click");
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if (touch) {
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CGPoint locationInView = [touch locationInView: self];
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/* send moved event */
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SDL_SendMouseMotion(NULL, 0, locationInView.x, locationInView.y);
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/* send mouse down event */
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SDL_SendMouseButton(NULL, SDL_PRESSED, SDL_BUTTON_LEFT);
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}
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#ifdef FIXED_MULTITOUCH
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while(touch) {
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CGPoint locationInView = [touch locationInView: self];
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#ifdef IPHONE_TOUCH_EFFICIENT_DANGEROUS
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//FIXME: TODO: Using touch as the fingerId is potentially dangerous
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//It is also much more efficient than storing the UITouch pointer
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//and comparing it to the incoming event.
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SDL_SendFingerDown(touchId,(long)touch,
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SDL_TRUE,locationInView.x,locationInView.y,
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1);
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#else
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int i;
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for(i = 0;i < MAX_SIMULTANEOUS_TOUCHES;i++) {
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if(finger[i] == NULL) {
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finger[i] = touch;
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SDL_SendFingerDown(touchId,i,
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SDL_TRUE,locationInView.x,locationInView.y,
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1);
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break;
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}
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}
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#endif
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touch = (UITouch*)[enumerator nextObject];
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}
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#endif
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}
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- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
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NSEnumerator *enumerator = [touches objectEnumerator];
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UITouch *touch = (UITouch*)[enumerator nextObject];
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if (touch) {
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/* send mouse up */
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SDL_SendMouseButton(NULL, SDL_RELEASED, SDL_BUTTON_LEFT);
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}
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#ifdef FIXED_MULTITOUCH
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while(touch) {
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CGPoint locationInView = [touch locationInView: self];
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#ifdef IPHONE_TOUCH_EFFICIENT_DANGEROUS
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SDL_SendFingerDown(touchId,(long)touch,
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SDL_FALSE,locationInView.x,locationInView.y,
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1);
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#else
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int i;
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for(i = 0;i < MAX_SIMULTANEOUS_TOUCHES;i++) {
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if(finger[i] == touch) {
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SDL_SendFingerDown(touchId,i,
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SDL_FALSE,locationInView.x,locationInView.y,
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1);
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break;
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}
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}
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#endif
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touch = (UITouch*)[enumerator nextObject];
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}
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#endif
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}
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- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event {
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/*
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this can happen if the user puts more than 5 touches on the screen
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at once, or perhaps in other circumstances. Usually (it seems)
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all active touches are canceled.
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*/
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[self touchesEnded: touches withEvent: event];
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}
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- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
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NSEnumerator *enumerator = [touches objectEnumerator];
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UITouch *touch = (UITouch*)[enumerator nextObject];
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if (touch) {
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CGPoint locationInView = [touch locationInView: self];
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/* send moved event */
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SDL_SendMouseMotion(NULL, 0, locationInView.x, locationInView.y);
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}
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#ifdef FIXED_MULTITOUCH
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while(touch) {
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CGPoint locationInView = [touch locationInView: self];
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#ifdef IPHONE_TOUCH_EFFICIENT_DANGEROUS
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SDL_SendTouchMotion(touchId,(long)touch,
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SDL_FALSE,locationInView.x,locationInView.y,
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1);
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#else
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int i;
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for(i = 0;i < MAX_SIMULTANEOUS_TOUCHES;i++) {
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if(finger[i] == touch) {
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SDL_SendTouchMotion(touchId,i,
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SDL_FALSE,locationInView.x,locationInView.y,
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1);
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break;
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}
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}
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#endif
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touch = (UITouch*)[enumerator nextObject];
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}
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#endif
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}
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/*
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---- Keyboard related functionality below this line ----
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*/
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#if SDL_IPHONE_KEYBOARD
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/* Is the iPhone virtual keyboard visible onscreen? */
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- (BOOL)keyboardVisible {
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return keyboardVisible;
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}
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/* Set ourselves up as a UITextFieldDelegate */
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- (void)initializeKeyboard {
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textField = [[[UITextField alloc] initWithFrame: CGRectZero] autorelease];
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textField.delegate = self;
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/* placeholder so there is something to delete! */
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textField.text = @" ";
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/* set UITextInputTrait properties, mostly to defaults */
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textField.autocapitalizationType = UITextAutocapitalizationTypeNone;
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textField.autocorrectionType = UITextAutocorrectionTypeNo;
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textField.enablesReturnKeyAutomatically = NO;
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textField.keyboardAppearance = UIKeyboardAppearanceDefault;
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textField.keyboardType = UIKeyboardTypeDefault;
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textField.returnKeyType = UIReturnKeyDefault;
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textField.secureTextEntry = NO;
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textField.hidden = YES;
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keyboardVisible = NO;
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/* add the UITextField (hidden) to our view */
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[self addSubview: textField];
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}
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/* reveal onscreen virtual keyboard */
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- (void)showKeyboard {
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keyboardVisible = YES;
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[textField becomeFirstResponder];
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}
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/* hide onscreen virtual keyboard */
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- (void)hideKeyboard {
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keyboardVisible = NO;
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[textField resignFirstResponder];
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}
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/* UITextFieldDelegate method. Invoked when user types something. */
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- (BOOL)textField:(UITextField *)_textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string {
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if ([string length] == 0) {
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/* it wants to replace text with nothing, ie a delete */
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SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_DELETE);
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SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_DELETE);
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}
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else {
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/* go through all the characters in the string we've been sent
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and convert them to key presses */
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int i;
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for (i=0; i<[string length]; i++) {
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unichar c = [string characterAtIndex: i];
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Uint16 mod = 0;
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SDL_scancode code;
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if (c < 127) {
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/* figure out the SDL_scancode and SDL_keymod for this unichar */
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code = unicharToUIKeyInfoTable[c].code;
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mod = unicharToUIKeyInfoTable[c].mod;
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}
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else {
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/* we only deal with ASCII right now */
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code = SDL_SCANCODE_UNKNOWN;
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mod = 0;
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}
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if (mod & KMOD_SHIFT) {
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/* If character uses shift, press shift down */
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SDL_SendKeyboardKey(SDL_PRESSED, SDL_SCANCODE_LSHIFT);
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}
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/* send a keydown and keyup even for the character */
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SDL_SendKeyboardKey(SDL_PRESSED, code);
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SDL_SendKeyboardKey(SDL_RELEASED, code);
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if (mod & KMOD_SHIFT) {
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/* If character uses shift, press shift back up */
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SDL_SendKeyboardKey(SDL_RELEASED, SDL_SCANCODE_LSHIFT);
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}
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}
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}
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return NO; /* don't allow the edit! (keep placeholder text there) */
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}
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/* Terminates the editing session */
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- (BOOL)textFieldShouldReturn:(UITextField*)_textField {
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[self hideKeyboard];
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return YES;
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}
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#endif
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@end
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/* iPhone keyboard addition functions */
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#if SDL_IPHONE_KEYBOARD
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int SDL_iPhoneKeyboardShow(SDL_Window * window) {
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SDL_WindowData *data;
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SDL_uikitview *view;
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if (NULL == window) {
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SDL_SetError("Window does not exist");
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return -1;
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}
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data = (SDL_WindowData *)window->driverdata;
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view = data->view;
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if (nil == view) {
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SDL_SetError("Window has no view");
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return -1;
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}
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else {
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[view showKeyboard];
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return 0;
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}
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}
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int SDL_iPhoneKeyboardHide(SDL_Window * window) {
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SDL_WindowData *data;
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SDL_uikitview *view;
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if (NULL == window) {
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SDL_SetError("Window does not exist");
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return -1;
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}
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data = (SDL_WindowData *)window->driverdata;
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view = data->view;
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if (NULL == view) {
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SDL_SetError("Window has no view");
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return -1;
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}
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else {
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[view hideKeyboard];
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return 0;
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}
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}
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SDL_bool SDL_iPhoneKeyboardIsShown(SDL_Window * window) {
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SDL_WindowData *data;
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SDL_uikitview *view;
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if (NULL == window) {
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SDL_SetError("Window does not exist");
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return -1;
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}
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data = (SDL_WindowData *)window->driverdata;
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view = data->view;
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if (NULL == view) {
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SDL_SetError("Window has no view");
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return 0;
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}
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else {
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return view.keyboardVisible;
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}
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}
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int SDL_iPhoneKeyboardToggle(SDL_Window * window) {
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SDL_WindowData *data;
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SDL_uikitview *view;
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if (NULL == window) {
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SDL_SetError("Window does not exist");
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return -1;
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}
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data = (SDL_WindowData *)window->driverdata;
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view = data->view;
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if (NULL == view) {
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SDL_SetError("Window has no view");
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return -1;
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}
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else {
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if (SDL_iPhoneKeyboardIsShown(window)) {
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SDL_iPhoneKeyboardHide(window);
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}
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else {
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SDL_iPhoneKeyboardShow(window);
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}
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return 0;
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}
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}
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#else
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/* stubs, used if compiled without keyboard support */
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int SDL_iPhoneKeyboardShow(SDL_Window * window) {
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SDL_SetError("Not compiled with keyboard support");
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return -1;
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}
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int SDL_iPhoneKeyboardHide(SDL_Window * window) {
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SDL_SetError("Not compiled with keyboard support");
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return -1;
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}
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SDL_bool SDL_iPhoneKeyboardIsShown(SDL_Window * window) {
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return 0;
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}
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int SDL_iPhoneKeyboardToggle(SDL_Window * window) {
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SDL_SetError("Not compiled with keyboard support");
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return -1;
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}
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#endif /* SDL_IPHONE_KEYBOARD */
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