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// -*- Mode: ObjC; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
//
// This file is part of the LibreOffice project.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
#import "MLOScrollerData.h"
#import "MLOMainViewController_Friend.h"
#import "MLOGestureEngine_Impl.h"
#import "MLOScrollerGridViewController.h"
#import "MLOScrollerTooltip.h"
#import "MLOGestureLimiter.h"
#import "mlo_uno.h"
#import "mlo_utils.h"
@interface MLOScrollerData ()
@property int left, top, zoom, visibleLeft, visibleTop, visibleRight, visibleBottom, zoomType, isBooklet;
@property float totalPages, totalHeightInLogic, frameWidth, frameHeight, scrollerX, scrollerTotalHeight,tooltipPageHeight,tooltipX,tooltipMaxY;
@property NSMutableString *mutableString;
@property CGRect maxCanvas,contentCanvas,visibleCanvas;
@property MLOMainViewController * mainViewController;
@end
static const float
SCROLLER_WIDTH=10,
SCROLLER_PADDING = 0,
GRID_TO_TOOLTIP_DISTANCE = 2.0f,
TOOLTIP_HEIGHT=60,
TOOLTIP_WIDTH=100,
FLOAT_RESET=-1.0f;
static const int INT_RESET= -1;
@implementation MLOScrollerData
-(id)initWithMainViewController:(MLOMainViewController *) mainViewController{
self= [super init];
if(self){
self.mutableString = [NSMutableString stringWithString:@""];
self.mainViewController = mainViewController;
[self reset];
}
return self;
}
-(void) showLibreOffice{
}
-(void)hideLibreOffice{
[self reset];
}
-(void)reset{
_tooltipMaxY= _tooltipPageHeight = _tooltipX = _totalPages = _totalHeightInLogic = _frameWidth= _frameHeight= _scrollerX= _scrollerTotalHeight = FLOAT_RESET;
_left = _top = _zoom = _visibleLeft = _visibleTop = _visibleRight = _visibleBottom = _zoomType = _isBooklet = INT_RESET;
}
-(void) updateViewData{
mlo_fetch_view_data(_mutableString);
sscanf([_mutableString UTF8String], "%d;%d;%d;%d;%d;%d;%d;%d;%d;",
&_left,
&_top,
&_zoom,
&_visibleLeft,
&_visibleTop,
&_visibleRight,
&_visibleBottom,
&_zoomType,
&_isBooklet);
if(LOG_GET_VIEW_DATA){
NSLog(@"left=%d top=%d zoom=%d vLeft=%d vTop=%d vRight=%d vBottom=%d zoomType=%d isBooklet=%d",
_left,
_top,
_zoom,
_visibleLeft,
_visibleTop,
_visibleRight,
_visibleBottom,
_zoomType,
_isBooklet);
}
}
-(BOOL)canCalculateDocumentSizeInLogic{
return (_totalHeightInLogic != FLOAT_RESET);
}
-(void) onRotateWithGrid:(MLOScrollerGridViewController *) grid{
static const float SCROLLLER_X_OFFSET =SCROLLER_PADDING + SCROLLER_WIDTH ,
DOUBLE_SCROLLER_PADDING =2*SCROLLER_PADDING,
GRID_X_OFFSET= MLO_SCROLLER_GRID_WIDTH,
TOOLTIP_X_OFFSET= GRID_X_OFFSET + GRID_TO_TOOLTIP_DISTANCE+ TOOLTIP_WIDTH;
CGRect canvasFrame = _mainViewController.canvas.frame;
_frameHeight = canvasFrame.size.height;
_frameWidth = canvasFrame.size.width;
_scrollerX = _frameWidth - SCROLLLER_X_OFFSET;
_tooltipX = _frameWidth - TOOLTIP_X_OFFSET;
_tooltipMaxY = _frameHeight - TOOLTIP_HEIGHT;
_scrollerTotalHeight =_frameHeight -DOUBLE_SCROLLER_PADDING;
_tooltipPageHeight = _frameHeight/_totalPages;
[grid onRotate:_frameWidth - GRID_X_OFFSET];
}
-(NSInteger) getTotalPages{
NSInteger newTotalPages= mlo_get_page_count();
if(newTotalPages!= _totalPages){
_totalPages = newTotalPages;
_totalHeightInLogic = _totalPages* PORTRAIT_PAGE_HEIGHT_IN_LOGIC_WITH_SEPARATOR;
_tooltipPageHeight = _frameHeight/_totalPages;
_mainViewController.gestureEngine.limiter.documentSizeInLogic = CGSizeMake(CANVAS_WIDTH_IN_LOGIC,
_totalHeightInLogic);
}
return newTotalPages;
}
-(CGRect) getShiftedScrollerFrame:(CGFloat) pixelDeltaX{
pixelDeltaX *= PIXEL_TO_LOGIC_RATIO / [_mainViewController getZoom] * 100;
CGFloat newTop = _visibleTop + pixelDeltaX;
CGFloat newBottom = _visibleBottom + pixelDeltaX;
BOOL isOverTop = newTop < 0.0f;
BOOL isBelowBotton = newBottom > _totalHeightInLogic;
if(!isOverTop && !isBelowBotton){
_visibleTop = newTop;
_visibleBottom = newBottom;
}else{
CGFloat scrollerHeightInLogic = _visibleBottom- _visibleTop;
if(isOverTop){
_visibleTop = 0.0f;
_visibleBottom =scrollerHeightInLogic;
}else{
_visibleBottom = _totalHeightInLogic;
_visibleTop = _totalHeightInLogic - scrollerHeightInLogic;
}
}
return [self getNewScrollerFrame];
}
-(CGRect)getNewScrollerFrame{
[self updateViewData];
CGFloat topRatio = max(_visibleTop / _totalHeightInLogic,0.0);
CGFloat heightRatio = min((_visibleBottom / _totalHeightInLogic) - topRatio,1.0);
return CGRectMake(_scrollerX,
SCROLLER_PADDING +topRatio*_scrollerTotalHeight,
SCROLLER_WIDTH,
heightRatio*_scrollerTotalHeight);
}
-(NSInteger) getCurrentPage{
return min(
max(
ceilf(
_visibleTop
/ PORTRAIT_PAGE_HEIGHT_IN_LOGIC_WITH_SEPARATOR
),
1),
_totalPages);
}
-(void) updateTooltip:(MLOScrollerTooltip *) tooltip withGrid:(MLOScrollerGridViewController *) grid{
if(mlo_is_document_open() && _visibleTop>=0){
NSInteger currentPage = [self getCurrentPage];
if(tooltip){
[tooltip updateWithFrame:CGRectMake(_tooltipX,
min(_tooltipPageHeight * (currentPage -1),_tooltipMaxY),
TOOLTIP_WIDTH,
TOOLTIP_HEIGHT) inPage:currentPage];
}
[grid onCurrentPageChanged:currentPage];
}
}
@end
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