forked from mirrors/linphone-iphone
104 lines
3.2 KiB
Objective-C
104 lines
3.2 KiB
Objective-C
//
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// VideoZoomHandler.m
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// linphone
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//
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// Created by Pierre-Eric Pelloux-Prayer on 25/04/12.
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// Copyright (c) 2012 __MyCompanyName__. All rights reserved.
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//
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#import "VideoZoomHandler.h"
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#include "linphonecore.h"
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#import "LinphoneManager.h"
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@implementation VideoZoomHandler
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-(void) zoomInOut:(UITapGestureRecognizer*) reco {
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if (zoomLevel != 1)
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zoomLevel = 1;
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else
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zoomLevel = 2;
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if (zoomLevel != 1) {
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CGPoint point = [reco locationInView:videoView];
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cx = point.x / videoView.frame.size.width;
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cy = 1 - point.y / videoView.frame.size.height;
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} else {
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cx = cy = 0.5;
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}
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linphone_call_zoom_video(linphone_core_get_current_call([LinphoneManager getLc]), zoomLevel, &cx, &cy);
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}
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-(void) videoPan:(UIPanGestureRecognizer*) reco {
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if (zoomLevel <= 1.0)
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return;
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float x,y;
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CGPoint translation = [reco translationInView:videoView];
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if ([reco state] == UIGestureRecognizerStateEnded) {
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cx -= translation.x / videoView.frame.size.width;
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cy += translation.y / videoView.frame.size.height;
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x = cx;
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y = cy;
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} else if ([reco state] == UIGestureRecognizerStateChanged) {
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x = cx - translation.x / videoView.frame.size.width;
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y = cy + translation.y / videoView.frame.size.height;
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[reco setTranslation:CGPointMake(0, 0) inView:videoView];
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} else {
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return;
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}
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linphone_call_zoom_video(linphone_core_get_current_call([LinphoneManager getLc]), zoomLevel, &x, &y);
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cx = x;
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cy = y;
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}
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-(void) pinch:(UIPinchGestureRecognizer*) reco {
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float s = zoomLevel;
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// CGPoint point = [reco locationInView:videoGroup];
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// float ccx = cx + (point.x / videoGroup.frame.size.width - 0.5) / s;
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// float ccy = cy - (point.y / videoGroup.frame.size.height - 0.5) / s;
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if ([reco state] == UIGestureRecognizerStateEnded) {
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zoomLevel = MAX(MIN(zoomLevel * reco.scale, 3.0), 1.0);
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s = zoomLevel;
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// cx = ccx;
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// cy = ccy;
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} else if ([reco state] == UIGestureRecognizerStateChanged) {
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s = zoomLevel * reco.scale;
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s = MAX(MIN(s, 3.0), 1.0);
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} else if ([reco state] == UIGestureRecognizerStateBegan) {
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} else {
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return;
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}
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linphone_call_zoom_video(linphone_core_get_current_call([LinphoneManager getLc]), s, &cx, &cy);
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}
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-(void) resetZoom {
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zoomLevel = 1;
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cx = cy = 0.5;
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}
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-(void) setup: (UIView*) view {
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videoView = view;
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UITapGestureRecognizer* doubleFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(zoomInOut:)];
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[doubleFingerTap setNumberOfTapsRequired:2];
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[doubleFingerTap setNumberOfTouchesRequired:1];
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[videoView addGestureRecognizer:doubleFingerTap];
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UIPanGestureRecognizer* pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(videoPan:)];
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[videoView addGestureRecognizer:pan];
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UIPinchGestureRecognizer* pinchReco = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinch:)];
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[videoView addGestureRecognizer:pinchReco];
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[doubleFingerTap release];
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[pan release];
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[pinchReco release];
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[self resetZoom];
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}
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@end
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