/// <summary>
/// Handles the Changed event of the screen observer control and send it to view range that is defined by getTargetViewRangeForScreenCapturing().
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="tud.mci.tangram.TangramLector.CaptureChangedEventArgs"/> instance containing the event data.</param>
void so_Changed(object sender, CaptureChangedEventArgs e)
{
if (currentView != LectorView.Drawing)
{
return;
}
BrailleIOViewRange vr = getTargetViewRangeForScreenCapturing();
if (vr != null && e != null)
{
BrailleIOScreen vs = GetVisibleScreen();
if (vs != null && vs.Name.Equals(BS_MINIMAP_NAME))
{
setMinimapContent(vr, e);
}
else
{
vr.SetBitmap(e.Img as Bitmap);
}
io.RefreshDisplay(true);
}
}
/// <summary>
/// Handles the Changed event of the screen observer control and send it to view range that is defined by getTargetViewRangeForScreenCapturing().
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="tud.mci.tangram.TangramLector.CaptureChangedEventArgs"/> instance containing the event data.</param>
void so_Changed(object sender, CaptureChangedEventArgs e)
{
if (currentView != LectorView.Drawing) return;
BrailleIOViewRange vr = getTargetViewRangeForScreenCapturing();
if (vr != null && e != null)
{
BrailleIOScreen vs = GetVisibleScreen();
if (vs != null && vs.Name.Equals(BS_MINIMAP_NAME))
{
setMinimapContent(vr, e);
}
else
{
vr.SetBitmap(e.Img as Bitmap);
}
io.RefreshDisplay(true);
}
}
/// <summary>
/// Set the content in minimap mode. Thereby the screen capturing bitmap is shown with blinking frame.
/// </summary>
/// <param name="vr">ViewRange in which minimap content should be shown.</param>
/// <param name="e">EventArgs of the screen capturing event.</param>
void setMinimapContent(BrailleIOViewRange vr, CaptureChangedEventArgs e)
{
int width = vr.ContentBox.Width;
int height = vr.ContentBox.Height;
Bitmap bmp = new Bitmap(width, height);
Graphics graph = Graphics.FromImage(bmp);
if (screenBeforeMinimap != null)
{
BrailleIOViewRange imgvr = screenBeforeMinimap.GetViewRange(VR_CENTER_NAME);
if (imgvr == null) return;
int xoffset = imgvr.GetXOffset();
int yoffset = imgvr.GetYOffset();
int imgWidth = imgvr.ContentWidth;
int imgHeight = imgvr.ContentHeight;
if (imgWidth > 0 && imgHeight > 0)
{
// calculate image size for minimap (complete image has to fit into view range)
int imgScaledWidth = imgWidth;
int imgScaledHeight = imgHeight;
double scaleFactorX = 1;
double scaleFactorY = 1;
if (width != 0 && imgScaledWidth > width)
{
scaleFactorX = (double)imgWidth / (double)width;
if (scaleFactorX != 0)
{
imgScaledWidth = width;
imgScaledHeight = (int)(imgHeight / scaleFactorX);
}
}
if (height != 0 && imgScaledHeight > height)
{
scaleFactorY = (double)imgScaledHeight / (double)height;
if (scaleFactorY != 0)
{
imgScaledHeight = height;
imgScaledWidth = (int)(imgScaledWidth / scaleFactorY);
}
}
// calculate scaling factor from original image to minimap image size
MinimapScalingFactor = 1 / (scaleFactorX * scaleFactorY);
double zoom = imgvr.GetZoom();
if (zoom > 0) MinimapScalingFactor = MinimapScalingFactor * zoom;
// calculate position and size of the blinking frame
int x = Math.Abs(xoffset) * imgScaledWidth / imgWidth;
int y = Math.Abs(yoffset) * imgScaledHeight / imgHeight;
int frameWidth = width * imgScaledWidth / imgWidth;
int frameHeigth = height * imgScaledHeight / imgHeight;
// draw scaled image and blinking frame
graph.DrawImage(e.Img, 0, 0, imgScaledWidth, imgScaledHeight);
Color frameColor = Color.Black;
if (!blinkPinsUp) frameColor = Color.White;
graph.DrawRectangle(new Pen(frameColor, 2), x, y, frameWidth, frameHeigth);
vr.SetBitmap(bmp);
}
}
}
/// <summary>
/// Set the content in minimap mode. Thereby the screen capturing bitmap is shown with blinking frame.
/// </summary>
/// <param name="vr">ViewRange in which minimap content should be shown.</param>
/// <param name="e">EventArgs of the screen capturing event.</param>
void setMinimapContent(BrailleIOViewRange vr, CaptureChangedEventArgs e)
{
int width = vr.ContentBox.Width;
int height = vr.ContentBox.Height;
Bitmap bmp = new Bitmap(width, height);
Graphics graph = Graphics.FromImage(bmp);
if (screenBeforeMinimap != null)
{
BrailleIOViewRange imgvr = screenBeforeMinimap.GetViewRange(VR_CENTER_NAME);
if (imgvr == null)
{
return;
}
int xoffset = imgvr.GetXOffset();
int yoffset = imgvr.GetYOffset();
int imgWidth = imgvr.ContentWidth;
int imgHeight = imgvr.ContentHeight;
if (imgWidth > 0 && imgHeight > 0)
{
// calculate image size for minimap (complete image has to fit into view range)
int imgScaledWidth = imgWidth;
int imgScaledHeight = imgHeight;
double scaleFactorX = 1;
double scaleFactorY = 1;
if (width != 0 && imgScaledWidth > width)
{
scaleFactorX = (double)imgWidth / (double)width;
if (scaleFactorX != 0)
{
imgScaledWidth = width;
imgScaledHeight = (int)(imgHeight / scaleFactorX);
}
}
if (height != 0 && imgScaledHeight > height)
{
scaleFactorY = (double)imgScaledHeight / (double)height;
if (scaleFactorY != 0)
{
imgScaledHeight = height;
imgScaledWidth = (int)(imgScaledWidth / scaleFactorY);
}
}
// calculate scaling factor from original image to minimap image size
MinimapScalingFactor = 1 / (scaleFactorX * scaleFactorY);
double zoom = imgvr.GetZoom();
if (zoom > 0)
{
MinimapScalingFactor = MinimapScalingFactor * zoom;
}
// calculate position and size of the blinking frame
int x = Math.Abs(xoffset) * imgScaledWidth / imgWidth;
int y = Math.Abs(yoffset) * imgScaledHeight / imgHeight;
int frameWidth = width * imgScaledWidth / imgWidth;
int frameHeigth = height * imgScaledHeight / imgHeight;
// draw scaled image and blinking frame
graph.DrawImage(e.Img, 0, 0, imgScaledWidth, imgScaledHeight);
Color frameColor = Color.Black;
if (!blinkPinsUp)
{
frameColor = Color.White;
}
graph.DrawRectangle(new Pen(frameColor, 2), x, y, frameWidth, frameHeigth);
vr.SetBitmap(bmp);
}
}
}
