view templates/static/graph.js @ 9693:c40a1ee20aa5

transaction: always remove empty journal on abort

When transactions without entries were aborted, the journal (of size 0) was not
unlinked, which prevents subsequent operations until hg recover is run on the
repository.

We also make sure the journal is unlinked when committing, even if the provided
hook doesn't do so.

// branch_renderer.js - Rendering of branch DAGs on the client side
//
// Copyright 2008 Dirkjan Ochtman <dirkjan AT ochtman DOT nl>
// Copyright 2006 Alexander Schremmer <alex AT alexanderweb DOT de>
//
// derived from code written by Scott James Remnant <[e-mail]>
// Copyright 2005 Canonical Ltd.
//
// This software may be used and distributed according to the terms
// of the GNU General Public License, incorporated herein by reference.

var colors = [
	[ 1.0, 0.0, 0.0 ],
	[ 1.0, 1.0, 0.0 ],
	[ 0.0, 1.0, 0.0 ],
	[ 0.0, 1.0, 1.0 ],
	[ 0.0, 0.0, 1.0 ],
	[ 1.0, 0.0, 1.0 ]
];

function Graph() {
	
	this.canvas = document.getElementById('graph');
	if (navigator.userAgent.indexOf('MSIE') >= 0) this.canvas = window.G_vmlCanvasManager.initElement(this.canvas);
	this.ctx = this.canvas.getContext('2d');
	this.ctx.strokeStyle = 'rgb(0, 0, 0)';
	this.ctx.fillStyle = 'rgb(0, 0, 0)';
	this.cur = [0, 0];
	this.line_width = 3;
	this.bg = [0, 4];
	this.cell = [2, 0];
	this.columns = 0;
	this.revlink = '';
	
	this.scale = function(height) {
		this.bg_height = height;
		this.box_size = Math.floor(this.bg_height / 1.2);
		this.cell_height = this.box_size;
	}
	
	function colorPart(num) {
		num *= 255
		num = num < 0 ? 0 : num;
		num = num > 255 ? 255 : num;
		var digits = Math.round(num).toString(16);
		if (num < 16) {
			return '0' + digits;
		} else {
			return digits;
		}
	}

	this.setColor = function(color, bg, fg) {
		
		// Set the colour.
		//
		// Picks a distinct colour based on an internal wheel; the bg
		// parameter provides the value that should be assigned to the 'zero'
		// colours and the fg parameter provides the multiplier that should be
		// applied to the foreground colours.
		
		color %= colors.length;
		var red = (colors[color][0] * fg) || bg;
		var green = (colors[color][1] * fg) || bg;
		var blue = (colors[color][2] * fg) || bg;
		red = Math.round(red * 255);
		green = Math.round(green * 255);
		blue = Math.round(blue * 255);
		var s = 'rgb(' + red + ', ' + green + ', ' + blue + ')';
		this.ctx.strokeStyle = s;
		this.ctx.fillStyle = s;
		return s;
		
	}

	this.render = function(data) {
		
		var backgrounds = '';
		var nodedata = '';
		
		for (var i in data) {
			
			var parity = i % 2;
			this.cell[1] += this.bg_height;
			this.bg[1] += this.bg_height;
			
			var cur = data[i];
			var node = cur[1];
			var edges = cur[2];
			var fold = false;
			
			for (var j in edges) {
				
				line = edges[j];
				start = line[0];
				end = line[1];
				color = line[2];

				if (end > this.columns || start > this.columns) {
					this.columns += 1;
				}
				
				if (start == this.columns && start > end) {
					var fold = true;
				}
				
				x0 = this.cell[0] + this.box_size * start + this.box_size / 2;
				y0 = this.bg[1] - this.bg_height / 2;
				x1 = this.cell[0] + this.box_size * end + this.box_size / 2;
				y1 = this.bg[1] + this.bg_height / 2;
				
				this.edge(x0, y0, x1, y1, color);
				
			}
			
			// Draw the revision node in the right column
			
			column = node[0]
			color = node[1]
			
			radius = this.box_size / 8;
			x = this.cell[0] + this.box_size * column + this.box_size / 2;
			y = this.bg[1] - this.bg_height / 2;
			var add = this.vertex(x, y, color, parity, cur);
			backgrounds += add[0];
			nodedata += add[1];
			
			if (fold) this.columns -= 1;
			
		}
		
		document.getElementById('nodebgs').innerHTML += backgrounds;
		document.getElementById('graphnodes').innerHTML += nodedata;
		
	}

}