transmission/macosx/PiecesView.mm

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/******************************************************************************
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* Copyright (c) 2006-2012 Transmission authors and contributors
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*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#include <libtransmission/transmission.h>
#include <libtransmission/utils.h>
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#import "PiecesView.h"
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#import "Torrent.h"
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#import "InfoWindowController.h"
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#define MAX_ACROSS 18
#define BETWEEN 1.0
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#define HIGH_PEERS 30
enum
{
PIECE_NONE,
PIECE_SOME,
PIECE_HIGH_PEERS,
PIECE_FINISHED,
PIECE_FLASHING
};
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@implementation PiecesView
- (void)awakeFromNib
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{
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//store box colors
fGreenAvailabilityColor = [NSColor colorWithCalibratedRed:0.0 green:1.0 blue:0.4 alpha:1.0];
fBluePieceColor = [NSColor colorWithCalibratedRed:0.0 green:0.4 blue:0.8 alpha:1.0];
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//actually draw the box
[self setTorrent:nil];
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}
- (void)dealloc
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{
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tr_free(fPieces);
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}
- (void)setTorrent:(Torrent*)torrent
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{
[self clearView];
fTorrent = (torrent && !torrent.magnet) ? torrent : nil;
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if (fTorrent)
{
//determine relevant values
fNumPieces = MIN(fTorrent.pieceCount, MAX_ACROSS * MAX_ACROSS);
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fAcross = ceil(sqrt(fNumPieces));
CGFloat const width = self.bounds.size.width;
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fWidth = (width - (fAcross + 1) * BETWEEN) / fAcross;
fExtraBorder = (width - ((fWidth + BETWEEN) * fAcross + BETWEEN)) / 2;
}
NSImage* back = [[NSImage alloc] initWithSize:self.bounds.size];
[back lockFocus];
NSGradient* gradient = [[NSGradient alloc] initWithStartingColor:[NSColor colorWithCalibratedWhite:0.0 alpha:0.4]
endingColor:[NSColor colorWithCalibratedWhite:0.2 alpha:0.4]];
[gradient drawInRect:self.bounds angle:90.0];
[back unlockFocus];
self.image = back;
[self setNeedsDisplay];
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}
- (void)clearView
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{
tr_free(fPieces);
fPieces = NULL;
}
- (void)updateView
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{
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if (!fTorrent)
{
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return;
}
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//determine if first time
BOOL const first = fPieces == NULL;
if (first)
{
fPieces = (int8_t*)tr_malloc(fNumPieces * sizeof(int8_t));
}
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int8_t* pieces = NULL;
float* piecesPercent = NULL;
BOOL const showAvailablity = [NSUserDefaults.standardUserDefaults boolForKey:@"PiecesViewShowAvailability"];
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if (showAvailablity)
{
pieces = (int8_t*)tr_malloc(fNumPieces * sizeof(int8_t));
[fTorrent getAvailability:pieces size:fNumPieces];
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}
else
{
piecesPercent = (float*)tr_malloc(fNumPieces * sizeof(float));
[fTorrent getAmountFinished:piecesPercent size:fNumPieces];
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}
NSImage* image = self.image;
NSRect fillRects[fNumPieces];
NSColor* fillColors[fNumPieces];
NSInteger usedCount = 0;
for (NSInteger index = 0; index < fNumPieces; index++)
{
NSColor* pieceColor = nil;
if (showAvailablity ? pieces[index] == -1 : piecesPercent[index] == 1.0)
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{
if (first || fPieces[index] != PIECE_FINISHED)
{
if (!first && fPieces[index] != PIECE_FLASHING)
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{
pieceColor = NSColor.orangeColor;
fPieces[index] = PIECE_FLASHING;
}
else
{
pieceColor = fBluePieceColor;
fPieces[index] = PIECE_FINISHED;
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}
}
}
else if (showAvailablity ? pieces[index] == 0 : piecesPercent[index] == 0.0)
{
if (first || fPieces[index] != PIECE_NONE)
{
pieceColor = NSColor.whiteColor;
fPieces[index] = PIECE_NONE;
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}
}
else if (showAvailablity && pieces[index] >= HIGH_PEERS)
{
if (first || fPieces[index] != PIECE_HIGH_PEERS)
{
pieceColor = fGreenAvailabilityColor;
fPieces[index] = PIECE_HIGH_PEERS;
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}
}
else
{
//always redraw "mixed"
CGFloat percent = showAvailablity ? (CGFloat)pieces[index] / HIGH_PEERS : piecesPercent[index];
NSColor* fullColor = showAvailablity ? fGreenAvailabilityColor : fBluePieceColor;
pieceColor = [NSColor.whiteColor blendedColorWithFraction:percent ofColor:fullColor];
fPieces[index] = PIECE_SOME;
}
if (pieceColor)
{
NSInteger const across = index % fAcross;
NSInteger const down = index / fAcross;
fillRects[usedCount] = NSMakeRect(
across * (fWidth + BETWEEN) + BETWEEN + fExtraBorder,
image.size.width - (down + 1) * (fWidth + BETWEEN) - fExtraBorder,
fWidth,
fWidth);
fillColors[usedCount] = pieceColor;
usedCount++;
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}
}
if (usedCount > 0)
{
[image lockFocus];
NSRectFillListWithColors(fillRects, fillColors, usedCount);
[image unlockFocus];
[self setNeedsDisplay];
}
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tr_free(pieces);
tr_free(piecesPercent);
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}
- (BOOL)acceptsFirstMouse:(NSEvent*)event
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{
return YES;
}
- (void)mouseDown:(NSEvent*)event
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{
if (fTorrent)
{
BOOL const availability = ![NSUserDefaults.standardUserDefaults boolForKey:@"PiecesViewShowAvailability"];
[NSUserDefaults.standardUserDefaults setBool:availability forKey:@"PiecesViewShowAvailability"];
[self sendAction:self.action to:self.target];
}
[super mouseDown:event];
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}
@end