/** Break the sheet into pages */
private void SplitIntoPages()
{
int currheight = TitleHeight;
SheetMusicPage page = new SheetMusicPage();
if (numtracks == 2 && (staffs.Count % 2) == 0)
{
for (int i = 0; i < staffs.Count; i += 2)
{
int heights = staffs[i].Height + staffs[i + 1].Height;
if (currheight + heights > PageHeight)
{
pages.Add(page);
page = new SheetMusicPage();
currheight = heights;
}
else
{
currheight += heights;
}
// TODO: Do double staffs need to be handled specially, i.e. broken into tracks?
page.staffs.Add(staffs[i]);
page.staffs.Add(staffs[i + 1]);
}
}
else
{
foreach (Staff staff in staffs)
{
if (currheight + staff.Height > PageHeight)
{
pages.Add(page);
page = new SheetMusicPage();
currheight = staff.Height;
}
else
{
currheight += staff.Height;
}
page.staffs.Add(staff);
}
}
// Add final page
if (!page.IsEmpty())
{
pages.Add(page);
}
}
/** Print the given page of the sheet music.
* Page numbers start from 1.
* A staff should fit within a single page, not be split across two pages.
* If the sheet music has exactly 2 tracks, then two staffs should
* fit within a single page, and not be split across two pages.
*/
public void DoPrint(Graphics g, int pagenumber)
{
int leftmargin = 20;
int topmargin = 20;
int rightmargin = 20;
int bottommargin = 20;
float scale = (g.VisibleClipBounds.Width - leftmargin - rightmargin) / PageWidth;
g.PageScale = scale;
int viewPageHeight = (int)((g.VisibleClipBounds.Height - topmargin - bottommargin) / scale);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.FillRectangle(Brushes.White, 0, 0,
g.VisibleClipBounds.Width,
g.VisibleClipBounds.Height);
Rectangle clip = new Rectangle(0, 0, PageWidth, PageHeight);
int ypos = TitleHeight;
SheetMusicPage page = pages[pagenumber - 1]; // Convert to zero indexing
if (pagenumber == 1)
{
DrawTitle(g);
ypos = TitleHeight;
}
else
{
ypos = 0;
}
foreach (Staff staff in page.staffs)
{
g.TranslateTransform(leftmargin, topmargin + ypos);
staff.Draw(g, clip, pen);
g.TranslateTransform(-leftmargin, -(topmargin + ypos));
ypos += staff.Height;
}
/* Draw the page number */
Font font = new Font("Arial", 10, FontStyle.Bold);
g.DrawString("" + pagenumber, font, Brushes.Black,
PageWidth - leftmargin, topmargin + viewPageHeight - 12);
font.Dispose();
}
