#include "chartdir.h"
void createChart(int chartIndex, const char *filename)
{
// The value to display on the meter
double value = 75.35;
// The bar colors for the meters
int barColor[] = {0x0088ff, 0x00cc00, 0x8833dd, 0xff8800};
// Create a LinearMeter object of size 260 x 80 pixels with very light grey (0xeeeeee)
// backgruond and a light grey (0xccccccc) 3-pixel thick rounded frame
LinearMeter *m = new LinearMeter(260, 80, 0xeeeeee, 0xcccccc);
m->setRoundedFrame(Chart::Transparent);
m->setThickFrame(3);
// This example demonstrates putting the text labels at the top or bottom. This is by setting
// the label alignment, as well as the scale, color scale and label positions.
int alignment[] = {Chart::Top, Chart::Top, Chart::Bottom, Chart::Bottom};
int meterYPos[] = {24, 24, 36, 36};
int labelYPos[] = {65, 65, 16, 16};
int colorScalePos[] = {48, 48, 27, 27};
// Set the scale region
m->setMeter(18, meterYPos[chartIndex], 222, 20, alignment[chartIndex]);
// Set meter scale from 0 - 100, with a tick every 10 units
m->setScale(0, 100, 10);
// Add a 5-pixel thick smooth color scale
double smoothColorScale[] = {0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100,
0xff0000};
m->addColorScale(DoubleArray(smoothColorScale, (int)(sizeof(smoothColorScale) / sizeof(
smoothColorScale[0]))), colorScalePos[chartIndex], 5);
// Add a bar from 0 to value with glass effect and 4 pixel rounded corners
m->addBar(0, value, barColor[chartIndex], Chart::glassEffect(Chart::NormalGlare, Chart::Top), 4)
;
//
// In this example, some charts have the "Temperauture" label on the left side and the value
// readout on the right side, and some charts have the reverse
//
if (chartIndex % 2 == 0) {
// Add a label on the left side using 8pt Arial Bold font
m->addText(15, labelYPos[chartIndex], "Temperature C", "arialbd.ttf", 8, Chart::TextColor,
Chart::Left);
// Add a text box on the right side. Display the value using white (0xffffff) 8pt Arial Bold
// font on a black (0x000000) background with depressed rounded border.
TextBox *t = m->addText(240, labelYPos[chartIndex], m->formatValue(value, "2"), "arial.ttf",
8, 0xffffff, Chart::Right);
t->setBackground(0x000000, 0x000000, -1);
t->setRoundedCorners(3);
} else {
// Add a label on the right side using 8pt Arial Bold font
m->addText(243, labelYPos[chartIndex], "Temperature C", "arialbd.ttf", 8, Chart::TextColor,
Chart::Right);
// Add a text box on the left side. Display the value using white (0xffffff) 8pt Arial Bold
// font on a black (0x000000) background with depressed rounded border.
TextBox *t = m->addText(18, labelYPos[chartIndex], m->formatValue(value, "2"), "arial.ttf",
8, 0xffffff, Chart::Left);
t->setBackground(0x000000, 0x000000, -1);
t->setRoundedCorners(3);
}
// Output the chart
m->makeChart(filename);
//free up resources
delete m;
}
int main(int argc, char *argv[])
{
createChart(0, "hbarmeterorientation0.png");
createChart(1, "hbarmeterorientation1.png");
createChart(2, "hbarmeterorientation2.png");
createChart(3, "hbarmeterorientation3.png");
return 0;
} |