Merge pull request #46 from richi/CoreGraphics
Additional CoreGraphics Example
This commit is contained in:
Micha Mettke
commit
6d8f2e4033
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@ -7,6 +7,9 @@
|
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<FileRef
|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
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7
demo/apple/iOS_CoreGraphics.xcodeproj/project.xcworkspace/contents.xcworkspacedata
generated
Normal file
7
demo/apple/iOS_CoreGraphics.xcodeproj/project.xcworkspace/contents.xcworkspacedata
generated
Normal file
|
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@ -0,0 +1,7 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<Workspace
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</Workspace>
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@ -0,0 +1,50 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
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<plist version="1.0">
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<dict>
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<key>CFBundleDevelopmentRegion</key>
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<string>en</string>
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<key>CFBundleExecutable</key>
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<string>$(EXECUTABLE_NAME)</string>
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<key>CFBundleIcons</key>
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<dict/>
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<key>CFBundleIcons~ipad</key>
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<dict/>
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<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
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<string>6.0</string>
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<key>CFBundleName</key>
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<string>$(PRODUCT_NAME)</string>
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<key>CFBundlePackageType</key>
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<string>APPL</string>
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<key>CFBundleShortVersionString</key>
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<string>1.0</string>
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<key>CFBundleSignature</key>
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<string>????</string>
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<key>CFBundleVersion</key>
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<string>1</string>
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<key>LSRequiresIPhoneOS</key>
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<true/>
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<key>UIRequiredDeviceCapabilities</key>
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<array>
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||||
<string>armv7</string>
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||||
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<key>UIStatusBarHidden</key>
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||||
<true/>
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||||
<string>UIInterfaceOrientationPortrait</string>
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||||
<string>UIInterfaceOrientationLandscapeLeft</string>
|
||||
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|
||||
<string>UIInterfaceOrientationPortraitUpsideDown</string>
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||||
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<key>UISupportedInterfaceOrientations~ipad</key>
|
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||||
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|
||||
</plist>
|
||||
|
|
@ -0,0 +1,340 @@
|
|||
/*
|
||||
Copyright (c) 2016 richi
|
||||
|
||||
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.
|
||||
*/
|
||||
|
||||
|
||||
#import <UIKit/UIKit.h>
|
||||
|
||||
#include "zahnrad.h"
|
||||
#include "../../demo.c"
|
||||
|
||||
|
||||
static void* mem_alloc(zr_handle unused, size_t size)
|
||||
{
|
||||
return calloc(1, size);
|
||||
}
|
||||
|
||||
|
||||
static void mem_free(zr_handle unused, void* ptr)
|
||||
{
|
||||
free(ptr);
|
||||
}
|
||||
|
||||
|
||||
NSString* stringFromZR(const char* text, zr_size len)
|
||||
{
|
||||
char cstr[len + 1];
|
||||
strncpy(cstr, text, len);
|
||||
cstr[len] = 0;
|
||||
return [NSString stringWithUTF8String: cstr];
|
||||
}
|
||||
|
||||
|
||||
static zr_size fontTextWidth(zr_handle handle, float height, const char* text, zr_size len)
|
||||
{
|
||||
UIFont* font = (__bridge UIFont*) handle.ptr;
|
||||
NSString* aString = stringFromZR(text, len);
|
||||
NSDictionary* attributes = @{ NSFontAttributeName: font};
|
||||
CGSize stringSize = [aString sizeWithAttributes: attributes];
|
||||
|
||||
return ceil(stringSize.width);
|
||||
}
|
||||
|
||||
|
||||
#pragma mark - ZRView -
|
||||
|
||||
|
||||
@interface ZRView : UIView
|
||||
{
|
||||
UIFont* font;
|
||||
struct zr_user_font usrfnt;
|
||||
struct zr_allocator alloc;
|
||||
|
||||
struct demo gui;
|
||||
}
|
||||
|
||||
@end
|
||||
|
||||
|
||||
@implementation ZRView
|
||||
|
||||
|
||||
- (instancetype) initWithFrame: (CGRect) frame
|
||||
{
|
||||
if (!(self = [super initWithFrame: frame]))
|
||||
return self;
|
||||
|
||||
alloc.userdata.ptr = NULL;
|
||||
alloc.alloc = mem_alloc;
|
||||
alloc.free = mem_free;
|
||||
|
||||
font = [UIFont systemFontOfSize: 11];
|
||||
font = [UIFont fontWithName: @"Menlo-Regular" size: 11];
|
||||
|
||||
NSDictionary* attributes = @{NSFontAttributeName: font};
|
||||
CGSize stringSize = [@"W" sizeWithAttributes: attributes];
|
||||
|
||||
memset(&usrfnt, 0, sizeof(usrfnt));
|
||||
usrfnt.height = round(stringSize.height);
|
||||
usrfnt.width = fontTextWidth;
|
||||
usrfnt.userdata.ptr = (__bridge void*)(font);
|
||||
|
||||
zr_init(&gui.ctx, &alloc, &usrfnt);
|
||||
zr_clear(&gui.ctx);
|
||||
run_demo(&gui);
|
||||
|
||||
return self;
|
||||
}
|
||||
|
||||
|
||||
#define setColor(_c) \
|
||||
CGContextSetRGBStrokeColor(context, _c->color.r / 255.0, _c->color.g / 255.0, _c->color.b / 255.0, _c->color.a / 255.0); \
|
||||
CGContextSetRGBFillColor(context, _c->color.r / 255.0, _c->color.g / 255.0, _c->color.b / 255.0, _c->color.a / 255.0);
|
||||
|
||||
|
||||
- (void) drawRect: (CGRect) rect
|
||||
{
|
||||
CGContextRef context = UIGraphicsGetCurrentContext();
|
||||
UIGraphicsPushContext(context);
|
||||
|
||||
UIColor* color = [UIColor blackColor];
|
||||
CGContextSetFillColorWithColor(context, color.CGColor);
|
||||
CGContextFillRect(context, rect);
|
||||
|
||||
const struct zr_command* cmd;
|
||||
|
||||
CGContextSaveGState(context);
|
||||
|
||||
zr_foreach(cmd, &gui.ctx)
|
||||
{
|
||||
switch (cmd->type)
|
||||
{
|
||||
case ZR_COMMAND_SCISSOR:
|
||||
{
|
||||
const struct zr_command_scissor* s = zr_command(scissor, cmd);
|
||||
CGRect cr = CGRectMake(s->x, s->y, s->w, s->h);
|
||||
CGContextRestoreGState(context);
|
||||
CGContextSaveGState(context);
|
||||
CGContextClipToRect(context, cr);
|
||||
} break;
|
||||
|
||||
case ZR_COMMAND_LINE:
|
||||
{
|
||||
const struct zr_command_line* l = zr_command(line, cmd);
|
||||
setColor(l);
|
||||
CGContextBeginPath(context);
|
||||
CGContextMoveToPoint(context, l->begin.x + .5, l->begin.y + .5);
|
||||
CGContextAddLineToPoint(context, l->end.x + .5, l->end.y + .5);
|
||||
CGContextStrokePath(context);
|
||||
} break;
|
||||
|
||||
case ZR_COMMAND_RECT:
|
||||
{
|
||||
const struct zr_command_rect* r = zr_command(rect, cmd);
|
||||
CGRect cr = CGRectMake(r->x, r->y, r->w, r->h);
|
||||
setColor(r);
|
||||
if (!r->rounding) CGContextFillRect(context, cr);
|
||||
else
|
||||
{
|
||||
CGMutablePathRef p = CGPathCreateMutable();
|
||||
CGPathAddRoundedRect(p, nil, cr, r->rounding, r->rounding);
|
||||
CGPathCloseSubpath(p);
|
||||
CGContextBeginPath(context);
|
||||
CGContextAddPath(context, p);
|
||||
CGContextDrawPath(context, kCGPathFill);
|
||||
CGPathRelease(p);
|
||||
}
|
||||
} break;
|
||||
|
||||
case ZR_COMMAND_CIRCLE:
|
||||
{
|
||||
const struct zr_command_circle* c = zr_command(circle, cmd);
|
||||
CGRect cr = CGRectMake(c->x, c->y, c->w, c->h);
|
||||
setColor(c);
|
||||
CGContextFillEllipseInRect(context, cr);
|
||||
} break;
|
||||
|
||||
case ZR_COMMAND_TRIANGLE:
|
||||
{
|
||||
const struct zr_command_triangle* t = zr_command(triangle, cmd);
|
||||
setColor(t);
|
||||
CGContextBeginPath(context);
|
||||
CGContextMoveToPoint (context, t->a.x, t->a.y);
|
||||
CGContextAddLineToPoint(context, t->b.x, t->b.y);
|
||||
CGContextAddLineToPoint(context, t->c.x, t->c.y);
|
||||
CGContextClosePath(context);
|
||||
CGContextFillPath(context);
|
||||
} break;
|
||||
|
||||
case ZR_COMMAND_TEXT:
|
||||
{
|
||||
const struct zr_command_text* t = zr_command(text, cmd);
|
||||
CGRect cr = CGRectMake(t->x, t->y, t->w, t->h);
|
||||
CGContextSetRGBFillColor(context, t->background.r / 255.0, t->background.g / 255.0, t->background.b / 255.0, t->background.a / 255.0);
|
||||
CGContextFillRect(context, cr);
|
||||
NSString* aString = stringFromZR(t->string, t->length);
|
||||
UIColor* fg = [UIColor colorWithRed: t->foreground.r / 255.0 green: t->foreground.g / 255.0 blue: t->foreground.b / 255.0 alpha: t->foreground.a / 255.0];
|
||||
UIColor* bg = [UIColor colorWithRed: t->background.r / 255.0 green: t->background.g / 255.0 blue: t->background.b / 255.0 alpha: t->background.a / 255.0];
|
||||
NSDictionary* attributes = @{ NSFontAttributeName: font, NSForegroundColorAttributeName: fg, NSBackgroundColorAttributeName: bg };
|
||||
CGSize size = [aString sizeWithAttributes: attributes];
|
||||
CGRect xr = CGRectMake(cr.origin.x, cr.origin.y + (cr.size.height - size.height) / 2.0, cr.size.width, size.height);
|
||||
[aString drawInRect: xr withAttributes: attributes];
|
||||
} break;
|
||||
|
||||
case ZR_COMMAND_CURVE:
|
||||
case ZR_COMMAND_IMAGE:
|
||||
case ZR_COMMAND_ARC:
|
||||
case ZR_COMMAND_NOP:
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
UIGraphicsPopContext();
|
||||
}
|
||||
|
||||
|
||||
- (void) touchesBegan: (NSSet*) touches withEvent: (UIEvent*) event
|
||||
{
|
||||
UITouch* touch = [[event allTouches] anyObject];
|
||||
CGPoint location = [touch locationInView: self];
|
||||
|
||||
zr_input_begin(&gui.ctx);
|
||||
zr_input_motion(&gui.ctx, location.x, location.y);
|
||||
zr_input_end(&gui.ctx);
|
||||
|
||||
zr_clear(&gui.ctx);
|
||||
zr_input_begin(&gui.ctx);
|
||||
zr_input_button(&gui.ctx, ZR_BUTTON_LEFT, location.x, location.y, zr_true);
|
||||
zr_input_end(&gui.ctx);
|
||||
|
||||
run_demo(&gui);
|
||||
[self setNeedsDisplay];
|
||||
}
|
||||
|
||||
|
||||
- (void) touchesMoved: (NSSet*) touches withEvent: (UIEvent*) event
|
||||
{
|
||||
UITouch* touch = [[event allTouches] anyObject];
|
||||
CGPoint location = [touch locationInView: self];
|
||||
|
||||
zr_clear(&gui.ctx);
|
||||
|
||||
zr_input_begin(&gui.ctx);
|
||||
zr_input_motion(&gui.ctx, location.x, location.y);
|
||||
zr_input_end(&gui.ctx);
|
||||
|
||||
run_demo(&gui);
|
||||
[self setNeedsDisplay];
|
||||
}
|
||||
|
||||
|
||||
- (void) touchesEnded: (NSSet*) touches withEvent: (UIEvent*) event
|
||||
{
|
||||
UITouch* touch = [[event allTouches] anyObject];
|
||||
CGPoint location = [touch locationInView: self];
|
||||
|
||||
zr_clear(&gui.ctx);
|
||||
zr_input_begin(&gui.ctx);
|
||||
zr_input_motion(&gui.ctx, location.x, location.y);
|
||||
zr_input_button(&gui.ctx, ZR_BUTTON_LEFT, location.x, location.y, zr_false);
|
||||
zr_input_end(&gui.ctx);
|
||||
run_demo(&gui);
|
||||
|
||||
zr_clear(&gui.ctx);
|
||||
zr_input_begin(&gui.ctx);
|
||||
zr_input_motion(&gui.ctx, 0, 0);
|
||||
zr_input_end(&gui.ctx);
|
||||
|
||||
run_demo(&gui);
|
||||
[self setNeedsDisplay];
|
||||
}
|
||||
|
||||
|
||||
- (void) touchesCancelled: (NSSet*) touches withEvent: (UIEvent*) event
|
||||
{
|
||||
[self touchesEnded: touches withEvent: event];
|
||||
}
|
||||
|
||||
|
||||
@end
|
||||
|
||||
|
||||
#pragma mark - ViewController -
|
||||
|
||||
|
||||
@interface ViewController : UIViewController
|
||||
|
||||
@property (strong, nonatomic) ZRView* zrView;
|
||||
|
||||
@end
|
||||
|
||||
|
||||
@implementation ViewController
|
||||
|
||||
|
||||
- (void) viewDidLoad
|
||||
{
|
||||
[super viewDidLoad];
|
||||
|
||||
_zrView = [[ZRView alloc] initWithFrame: self.view.bounds];
|
||||
[self.view addSubview: _zrView];
|
||||
}
|
||||
|
||||
|
||||
@end
|
||||
|
||||
|
||||
#pragma mark - App Delegate -
|
||||
|
||||
|
||||
@interface AppDelegate : UIResponder <UIApplicationDelegate>
|
||||
|
||||
@property (strong, nonatomic) UIWindow* window;
|
||||
@property (strong, nonatomic) ViewController* viewController;
|
||||
|
||||
@end
|
||||
|
||||
|
||||
@implementation AppDelegate
|
||||
|
||||
|
||||
- (BOOL) application: (UIApplication*) application didFinishLaunchingWithOptions: (NSDictionary*) launchOptions
|
||||
{
|
||||
_window = [[UIWindow alloc] initWithFrame: [[UIScreen mainScreen] bounds]];
|
||||
_viewController = [ViewController new];
|
||||
_window.rootViewController = _viewController;
|
||||
[_window makeKeyAndVisible];
|
||||
|
||||
return YES;
|
||||
}
|
||||
|
||||
|
||||
@end
|
||||
|
||||
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
@autoreleasepool
|
||||
{
|
||||
return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue