void update()
{
m_pImage->clear(0xff000000); // a=ff, r=00, g=00, b=00
HelloModel* pModel = m_pController->model();
m_pImage->text(g_szMessage, pModel->x(), pModel->y(), TEXT_SIZE, 0xffffff30); // a=ff, r=ff, g=ff, b=30
m_pCanvas->setImage(m_pImage);
}
// static
void GSubImageFinder2::test()
{
// Make some random image
GImage foo;
foo.setSize(256, 256);
foo.clear(0xff000000);
foo.boxFill(13, 8, 12, 17, 0xff808030);
foo.boxFill(8, 13, 10, 9, 0xff407040);
foo.boxFill(20, 20, 220, 220, 0xffffffee);
// Make the finder
GSubImageFinder2 finder(&foo);
// Make a sub-image
GRect r2(0, 0, 256, 256);
GRect r;
r.x = 13;
r.y = 17;
r.w = 32;
r.h = 32;
GImage bar;
bar.setSize(32, 32);
bar.blit(0, 0, &foo, &r);
// Find the sub-image
r.x = 0;
r.y = 0;
int x, y;
finder.findSubImage(&x, &y, &bar, &r);
if(x != 13 || y != 17)
throw "wrong answer";
}
// static
void GPlotWindow::stringLabel(GImage* pImage, const char* szText, int x, int y, float size, unsigned int color, double angle)
{
// Draw the label such that it ends at the center of the temp image
int width = GImage::measureTextWidth(szText, size);
int nSize = (int)(std::max((float)width, size * 12) * 2.3);
GImage tmp;
tmp.setSize(nSize, nSize);
tmp.clear(0x0);
tmp.text(szText, nSize / 2 - width, (int)((nSize - size * 12) / 2), size, color, 1000, 1000);
// Rotate the label around the center
GImage tmp2;
tmp2.rotate(&tmp, nSize / 2, nSize / 2, angle);
// Blit such that the label ends at the specified point
GRect r(0, 0, nSize, nSize);
pImage->blitAlpha(x - nSize / 2, y - nSize / 2, &tmp2, &r);
}
void Redraw(bool forw)
{
m_pImage->clear(0xff80c0e0);
// Draw the hill
{
int i, j;
double x, y;
for(i = 0; i < (int)m_pImage->width(); i++)
{
x = (double)i * 1.4 / m_pImage->width() - 0.4;
y = x * x - x * x * x;
j = (int)(m_pImage->height() - y * 3 * m_pImage->height() - 50);
m_pImage->lineNoChecks(i, j, i, m_pImage->height() - 1, 0xff40a060);
}
}
// Draw the car
DrawCar();
// Draw the acceleration arrow
m_pImage->arrow(240, 20, 240 + (forw ? 15 : -15), 20, 0xff000000, 10);
}
GImage* GPlotWindow::labelAxes(int maxHorizAxisLabels, int maxVertAxisLabels, int precision, float size, unsigned int color, double angle)
{
int spacing = 10;
int horizMargin = 200;
int vertMargin = 200;
GImage* pOutImage = new GImage();
pOutImage->setSize(m_pImage->width() + horizMargin, m_pImage->height() + vertMargin);
pOutImage->clear(0xffffffff);
GRect r(0, 0, m_pImage->width(), m_pImage->height());
pOutImage->blit(horizMargin, 0, m_pImage, &r);
if(maxHorizAxisLabels > 0)
{
GPlotLabelSpacer spacer(m_window.x, m_window.x + m_window.w, maxHorizAxisLabels);
for(int i = 0; i < spacer.count(); i++)
{
double pos = spacer.label(i);
int x1, y1;
windowToView(pos, 0, &x1, &y1);
numericLabel(pOutImage, pos, horizMargin + x1, m_pImage->height() + spacing, precision, size, color, angle);
}
}
else if(maxHorizAxisLabels == -1)
{
GPlotLabelSpacerLogarithmic spacer(m_window.x, m_window.x + m_window.w);
while(true)
{
double pos;
bool primary;
if(!spacer.next(&pos, &primary))
break;
if(primary)
{
double x = log(pos);
int x1, y1;
windowToView(x, 0, &x1, &y1);
numericLabel(pOutImage, pos, horizMargin + x1, m_pImage->height() + spacing, precision, size, color, angle);
}
}
}
if(maxVertAxisLabels > 0)
{
GPlotLabelSpacer spacer(m_window.y, m_window.y + m_window.h, maxVertAxisLabels);
for(int i = 0; i < spacer.count(); i++)
{
double pos = spacer.label(i);
int x1, y1;
windowToView(0, pos, &x1, &y1);
numericLabel(pOutImage, pos, horizMargin - spacing, y1, precision, size, color, 0.0);
}
}
else if(maxVertAxisLabels == -1)
{
GPlotLabelSpacerLogarithmic spacer(m_window.y, m_window.y + m_window.h);
while(true)
{
double pos;
bool primary;
if(!spacer.next(&pos, &primary))
break;
if(primary)
{
double y = log(pos);
int x1, y1;
windowToView(0, y, &x1, &y1);
numericLabel(pOutImage, pos, horizMargin - spacing, y1, precision, size, color, 0.0);
}
}
}
return pOutImage;
}