346 lines
12 KiB
Objective-C
346 lines
12 KiB
Objective-C
/*
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Advanced keyboard view interface
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Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz
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This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
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If a copy of the MPL was not distributed with this file, You can obtain one at
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http://mozilla.org/MPL/2.0/.
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*/
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#import "AdvancedKeyboardView.h"
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#include <freerdp/locale/keyboard.h>
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// helper struct to define button layouts/settings
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struct ButtonItem
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{
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NSString *title;
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int tag;
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};
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@interface AdvancedKeyboardView (Private)
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- (UIView *)keyboardViewForItems:(struct ButtonItem *)items columns:(int)columns rows:(int)rows;
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@end
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@implementation AdvancedKeyboardView
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@synthesize delegate = _delegate;
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// defines for the different views
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#define KEY_SHOW_FUNCVIEW 0x1000
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#define KEY_SHOW_CURSORVIEW 0x1001
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#define KEY_SHOW_NUMPADVIEW 0x1002
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#define KEY_SKIP 0x8000
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#define KEY_MERGE_COLUMN 0x8001
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#define KEYCODE_UNICODE 0x80000000
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struct ButtonItem functionKeysItems[24] = { { @"F1", VK_F1 },
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{ @"F2", VK_F2 },
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{ @"F3", VK_F3 },
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{ @"F4", VK_F4 },
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{ @"F5", VK_F5 },
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{ @"F6", VK_F6 },
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{ @"F7", VK_F7 },
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{ @"F8", VK_F8 },
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{ @"F9", VK_F9 },
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{ @"F10", VK_F10 },
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{ @"F11", VK_F11 },
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{ @"F12", VK_F12 },
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{ @"img:icon_key_arrows", KEY_SHOW_CURSORVIEW },
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{ @"Tab", VK_TAB },
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{ @"Ins", VK_INSERT | KBDEXT },
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{ @"Home", VK_HOME | KBDEXT },
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{ @"PgUp", VK_PRIOR | KBDEXT },
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{ @"img:icon_key_win", VK_LWIN | KBDEXT },
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{ @"123", KEY_SHOW_NUMPADVIEW },
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{ @"Print", VK_PRINT },
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{ @"Del", VK_DELETE | KBDEXT },
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{ @"End", VK_END | KBDEXT },
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{ @"PgDn", VK_NEXT | KBDEXT },
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{ @"img:icon_key_menu", VK_APPS | KBDEXT } };
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struct ButtonItem numPadKeysItems[24] = { { @"(", KEYCODE_UNICODE | 40 },
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{ @")", KEYCODE_UNICODE | 41 },
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{ @"7", VK_NUMPAD7 },
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{ @"8", VK_NUMPAD8 },
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{ @"9", VK_NUMPAD9 },
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{ @"-", VK_SUBTRACT },
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{ @"/", VK_DIVIDE | KBDEXT },
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{ @"*", VK_MULTIPLY },
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{ @"4", VK_NUMPAD4 },
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{ @"5", VK_NUMPAD5 },
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{ @"6", VK_NUMPAD6 },
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{ @"+", VK_ADD },
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{ @"Fn", KEY_SHOW_FUNCVIEW },
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{ @"Num", VK_NUMLOCK },
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{ @"1", VK_NUMPAD1 },
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{ @"2", VK_NUMPAD2 },
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{ @"3", VK_NUMPAD3 },
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{ @"img:icon_key_backspace", VK_BACK },
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{ @"img:icon_key_arrows", KEY_SHOW_CURSORVIEW },
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{ @"=", KEYCODE_UNICODE | 61 },
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{ @"", KEY_MERGE_COLUMN },
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{ @"0", VK_NUMPAD0 },
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{ @".", VK_DECIMAL },
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{ @"img:icon_key_return", VK_RETURN | KBDEXT } };
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struct ButtonItem cursorKeysItems[24] = { { @"", KEY_SKIP },
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{ @"", KEY_SKIP },
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{ @"", KEY_SKIP },
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{ @"", KEY_SKIP },
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{ @"", KEY_SKIP },
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{ @"", KEY_SKIP },
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{ @"", KEY_SKIP },
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{ @"", KEY_SKIP },
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{ @"", KEY_SKIP },
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{ @"img:icon_key_arrow_up", VK_UP | KBDEXT },
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{ @"", KEY_SKIP },
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{ @"", KEY_SKIP },
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{ @"Fn", KEY_SHOW_FUNCVIEW },
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{ @"", KEY_SKIP },
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{ @"img:icon_key_arrow_left", VK_LEFT | KBDEXT },
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{ @"", KEY_SKIP },
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{ @"img:icon_key_arrow_right", VK_RIGHT | KBDEXT },
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{ @"img:icon_key_backspace", VK_BACK },
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{ @"123", KEY_SHOW_NUMPADVIEW },
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{ @"", KEY_SKIP },
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{ @"", KEY_SKIP },
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{ @"img:icon_key_arrow_down", VK_DOWN | KBDEXT },
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{ @"", KEY_SKIP },
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{ @"img:icon_key_return", VK_RETURN | KBDEXT } };
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- (void)initFunctionKeysView
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{
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_function_keys_view = [[self keyboardViewForItems:functionKeysItems columns:6 rows:4] retain];
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[self addSubview:_function_keys_view];
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}
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- (void)initNumPadKeysView
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{
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_numpad_keys_view = [[self keyboardViewForItems:numPadKeysItems columns:6 rows:4] retain];
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[self addSubview:_numpad_keys_view];
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}
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- (void)initCursorKeysView
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{
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_cursor_keys_view = [[self keyboardViewForItems:cursorKeysItems columns:6 rows:4] retain];
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[self addSubview:_cursor_keys_view];
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}
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- (id)initWithFrame:(CGRect)frame delegate:(NSObject<AdvancedKeyboardDelegate> *)delegate
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{
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self = [super initWithFrame:frame];
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if (self)
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{
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_delegate = delegate;
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self.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
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self.backgroundColor = [UIColor blackColor];
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// Initialization code
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[self initCursorKeysView];
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[self initNumPadKeysView];
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[self initFunctionKeysView];
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// set function keys view to the initial view and hide others
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_cur_view = _function_keys_view;
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[_numpad_keys_view setHidden:YES];
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[_cursor_keys_view setHidden:YES];
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}
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return self;
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}
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/*
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// Only override drawRect: if you perform custom drawing.
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// An empty implementation adversely affects performance during animation.
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- (void)drawRect:(CGRect)rect
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{
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// Drawing code
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}
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*/
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- (void)drawRect:(CGRect)rect
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{
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// draw a nice background gradient
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CGContextRef currentContext = UIGraphicsGetCurrentContext();
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CGGradientRef glossGradient;
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CGColorSpaceRef rgbColorspace;
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size_t num_locations = 2;
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CGFloat locations[2] = { 0.0, 1.0 };
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CGFloat components[8] = { 1.0, 1.0, 1.0, 0.35, // Start color
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1.0, 1.0, 1.0, 0.06 }; // End color
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rgbColorspace = CGColorSpaceCreateDeviceRGB();
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glossGradient =
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CGGradientCreateWithColorComponents(rgbColorspace, components, locations, num_locations);
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CGRect currentBounds = self.bounds;
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CGPoint topCenter = CGPointMake(CGRectGetMidX(currentBounds), 0.0f);
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CGPoint midCenter = CGPointMake(CGRectGetMidX(currentBounds), currentBounds.size.height);
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CGContextDrawLinearGradient(currentContext, glossGradient, topCenter, midCenter, 0);
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CGGradientRelease(glossGradient);
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CGColorSpaceRelease(rgbColorspace);
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}
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- (void)dealloc
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{
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[_function_keys_view autorelease];
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[_numpad_keys_view autorelease];
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[_cursor_keys_view autorelease];
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[super dealloc];
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}
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#pragma mark -
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#pragma mark button events
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- (IBAction)keyPressed:(id)sender
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{
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UIButton *btn = (UIButton *)sender;
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switch ([btn tag])
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{
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case KEY_SHOW_CURSORVIEW:
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// switch to cursor view
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[_cur_view setHidden:YES];
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[_cursor_keys_view setHidden:NO];
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_cur_view = _cursor_keys_view;
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break;
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case KEY_SHOW_NUMPADVIEW:
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// switch to numpad view
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[_cur_view setHidden:YES];
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[_numpad_keys_view setHidden:NO];
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_cur_view = _numpad_keys_view;
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break;
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case KEY_SHOW_FUNCVIEW:
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// switch to function keys view
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[_cur_view setHidden:YES];
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[_function_keys_view setHidden:NO];
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_cur_view = _function_keys_view;
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break;
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default:
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if ([btn tag] & KEYCODE_UNICODE)
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{
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if ([[self delegate] respondsToSelector:@selector(advancedKeyPressedUnicode:)])
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[[self delegate] advancedKeyPressedUnicode:([btn tag] & ~KEYCODE_UNICODE)];
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}
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else
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{
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if ([[self delegate] respondsToSelector:@selector(advancedKeyPressedVKey:)])
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[[self delegate] advancedKeyPressedVKey:[btn tag]];
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}
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break;
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}
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}
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@end
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#pragma mark -
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@implementation AdvancedKeyboardView (Private)
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- (UIView *)keyboardViewForItems:(struct ButtonItem *)items columns:(int)columns rows:(int)rows
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{
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UIView *result_view = [[[UIView alloc] initWithFrame:self.bounds] autorelease];
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result_view.autoresizingMask =
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UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
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// calculate maximum button size
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int max_btn_width = result_view.bounds.size.width / ((columns * 2) + 1);
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int max_btn_height = result_view.bounds.size.height / ((rows * 2) + 1);
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// ensure minimum button size
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CGSize btn_size = CGSizeMake(45, 30);
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if (btn_size.width < max_btn_width)
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btn_size.width = max_btn_width;
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if (btn_size.height < max_btn_height)
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btn_size.height = max_btn_height;
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// calc distance width and height between buttons
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int dist_width = (result_view.bounds.size.width - (columns * btn_size.width)) / (columns + 1);
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int dist_height = (result_view.bounds.size.height - (rows * btn_size.height)) / (rows + 1);
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UIImage *btn_background_img = [UIImage
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imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"keyboard_button_background"
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ofType:@"png"]];
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for (int j = 0; j < rows; j++)
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{
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for (int i = 0; i < columns; i++)
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{
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struct ButtonItem *curItem = &items[j * columns + i];
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// skip this spot?
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if (curItem->tag == KEY_SKIP)
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continue;
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// create button, set autoresizing mask and add action handler
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UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
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[btn setAutoresizingMask:(UIViewAutoresizingFlexibleLeftMargin |
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UIViewAutoresizingFlexibleRightMargin |
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UIViewAutoresizingFlexibleTopMargin |
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UIViewAutoresizingFlexibleBottomMargin |
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UIViewAutoresizingFlexibleWidth |
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UIViewAutoresizingFlexibleHeight)];
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[btn addTarget:self
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action:@selector(keyPressed:)
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forControlEvents:UIControlEventTouchUpInside];
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// if merge is specified we merge this button's position with the next one
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if (curItem->tag == KEY_MERGE_COLUMN)
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{
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// calc merged frame
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[btn setFrame:CGRectMake(dist_width + (i * dist_width) + (i * btn_size.width),
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dist_height + (j * dist_height) + (j * btn_size.height),
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btn_size.width * 2 + dist_width, btn_size.height)];
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// proceed to the next column item
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i++;
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curItem = &items[j * columns + i];
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}
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else
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{
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[btn setFrame:CGRectMake(dist_width + (i * dist_width) + (i * btn_size.width),
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dist_height + (j * dist_height) + (j * btn_size.height),
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btn_size.width, btn_size.height)];
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}
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// set button text or image parameters
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if ([curItem->title hasPrefix:@"img:"] == YES)
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{
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UIImage *btn_image =
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[UIImage imageWithContentsOfFile:[[NSBundle mainBundle]
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pathForResource:[curItem->title
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substringFromIndex:4]
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ofType:@"png"]];
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[btn setImage:btn_image forState:UIControlStateNormal];
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}
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else
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{
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[btn setTitle:curItem->title forState:UIControlStateNormal];
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[btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
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}
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[btn setBackgroundImage:btn_background_img forState:UIControlStateNormal];
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[btn setTag:curItem->tag];
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// add button to view
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[result_view addSubview:btn];
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}
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}
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return result_view;
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}
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@end
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