<?php
require_once("../lib/phpchartdir.php");

# the names of the tasks
$labels = array("Market Research", "Define Specifications", "Overall Archiecture",
    "Project Planning", "Detail Design", "Software Development", "Test Plan",
    "Testing and QA", "User Documentation");

# the planned start dates and end dates for the tasks
$startDate = array(chartTime(2004, 8, 16), chartTime(2004, 8, 30), chartTime(2004, 9,
    13), chartTime(2004, 9, 20), chartTime(2004, 9, 27), chartTime(2004, 10, 4),
    chartTime(2004, 10, 25), chartTime(2004, 11, 1), chartTime(2004, 11, 8));
$endDate = array(chartTime(2004, 8, 30), chartTime(2004, 9, 13), chartTime(2004, 9,
    27), chartTime(2004, 10, 4), chartTime(2004, 10, 11), chartTime(2004, 11, 8),
    chartTime(2004, 11, 8), chartTime(2004, 11, 22), chartTime(2004, 11, 22));

# the actual start dates and end dates for the tasks up to now
$actualStartDate = array(chartTime(2004, 8, 16), chartTime(2004, 8, 27), chartTime(
    2004, 9, 9), chartTime(2004, 9, 18), chartTime(2004, 9, 22));
$actualEndDate = array(chartTime(2004, 8, 27), chartTime(2004, 9, 9), chartTime(2004,
    9, 27), chartTime(2004, 10, 2), chartTime(2004, 10, 8));

# Create a XYChart object of size 620 x 280 pixels. Set background color to light
# green (ccffcc) with 1 pixel 3D border effect.
$c = new XYChart(620, 280, 0xccffcc, 0x000000, 1);

# Add a title to the chart using 15 points Times Bold Itatic font, with white
# (ffffff) text on a dark green (0x6000) background
$textBoxObj = $c->addTitle("Mutli-Layer Gantt Chart Demo", "timesbi.ttf", 15,
    0xffffff);
$textBoxObj->setBackground(0x006000);

# Set the plotarea at (140, 55) and of size 460 x 200 pixels. Use alternative
# white/grey background. Enable both horizontal and vertical grids by setting their
# colors to grey (c0c0c0). Set vertical major grid (represents month boundaries) 2
# pixels in width
$plotAreaObj = $c->setPlotArea(140, 55, 460, 200, 0xffffff, 0xeeeeee, LineColor,
    0xc0c0c0, 0xc0c0c0);
$plotAreaObj->setGridWidth(2, 1, 1, 1);

# swap the x and y axes to create a horziontal box-whisker chart
$c->swapXY();

# Set the y-axis scale to be date scale from Aug 16, 2004 to Nov 22, 2004, with ticks
# every 7 days (1 week)
$c->yAxis->setDateScale(chartTime(2004, 8, 16), chartTime(2004, 11, 22), 86400 * 7);

# Add a red (ff0000) dash line to represent the current day
$c->yAxis->addMark(chartTime(2004, 10, 8), $c->dashLineColor(0xff0000, DashLine));

# Set multi-style axis label formatting. Month labels are in Arial Bold font in "mmm
# d" format. Weekly labels just show the day of month and use minor tick (by using
# '-' as first character of format string).
$c->yAxis->setMultiFormat(StartOfMonthFilter(), "<*font=arialbd.ttf*>{value|mmm d}",
    StartOfDayFilter(), "-{value|d}");

# Set the y-axis to shown on the top (right + swapXY = top)
$c->setYAxisOnRight();

# Set the labels on the x axis
$c->xAxis->setLabels($labels);

# Reverse the x-axis scale so that it points downwards.
$c->xAxis->setReverse();

# Set the horizontal ticks and grid lines to be between the bars
$c->xAxis->setTickOffset(0.5);

# Use blue (0000aa) as the color for the planned schedule
$plannedColor = 0x0000aa;

# Use a red hash pattern as the color for the actual dates. The pattern is created as
# a 4 x 4 bitmap defined in memory as an array of colors.
$actualColor = $c->patternColor(array(0xffffff, 0xffffff, 0xffffff, 0xff0000,
    0xffffff, 0xffffff, 0xff0000, 0xffffff, 0xffffff, 0xff0000, 0xffffff, 0xffffff,
    0xff0000, 0xffffff, 0xffffff, 0xffffff), 4);

# Add a box whisker layer to represent the actual dates. We add the actual dates
# layer first, so it will be the top layer.
$actualLayer = $c->addBoxLayer($actualStartDate, $actualEndDate, $actualColor,
    "Actual");

# Set the bar height to 8 pixels so they will not block the bottom bar
$actualLayer->setDataWidth(8);

# Add a box-whisker layer to represent the planned schedule date
$boxLayerObj = $c->addBoxLayer($startDate, $endDate, $plannedColor, "Planned");
$boxLayerObj->setBorderColor(SameAsMainColor);

# Add a legend box on the top right corner (595, 60) of the plot area with 8 pt Arial
# Bold font. Use a semi-transparent grey (80808080) background.
$b = $c->addLegend(595, 60, false, "arialbd.ttf", 8);
$b->setAlignment(TopRight);
$b->setBackground(0x80808080, -1, 2);

# output the chart
header("Content-type: image/png");
print($c->makeChart2(PNG));
?>