public void initGridPositions(List <SpellerCell> cells, int numRows, int numColumns, int spacing)
{
// Store pointer to cells array (for drawing later)
taskCells = cells;
// Store the cell parameters for drawing later
this.numCharacterRows = numRows;
this.numCharacterColumns = numColumns;
this.spacing = spacing;
// Calculate maximum possible size of cells, using 0.7 of total height for grid, first 0.3 part of height is reserved for cue and input
charactersOffsetX = 0; charactersOffsetY = 0;
if (getContentWidth() / numColumns > (0.7 * getContentHeight()) / numRows)
{
characterCellSize = (int)Math.Floor((double)(((0.7 * getContentHeight()) - (spacing * (numRows + 1))) / numRows));
}
else
{
characterCellSize = (int)Math.Floor((double)((getContentWidth() - (spacing * (numColumns + 1))) / numColumns));
}
// set the x and y offset. x offset is determined by centering the cells around the horizontal center, y offset is determined by the fact that the first 0.3 part of height is reserved for cue and input, so grid starts here
charactersOffsetX = (getContentWidth() - numColumns * characterCellSize - spacing * (numColumns + 1)) / 2;
//charactersOffsetY = getContentHeight() - numRows * characterCellSize - spacing * (numRows + 1);
charactersOffsetY = (int)(0.3 * getContentHeight());
// Loop through the cells
for (int i = 0; i < cells.Count; i++)
{
// calculate the row and column index (0 based)
int row = (int)Math.Floor((double)(i / numColumns));
int column = i - (row * numColumns);
// retrieve the reference to the cell
SpellerCell cell = cells[i];
// Set position and size
cell.x = charactersOffsetX + spacing + column * (characterCellSize + spacing);
cell.y = charactersOffsetY + spacing + row * (characterCellSize + spacing);
cell.height = characterCellSize;
cell.width = characterCellSize;
}
}
protected override void render()
{
// check if fixation should be shown
if (showFixation)
{
// set the fixation to white
glColor3(1f, 1f, 1f);
// set the text count
int fixationTextWidth = fixationFont.getTextWidth("+");
fixationFont.printLine((int)((getContentWidth() - fixationTextWidth) / 2), (int)((getContentHeight() - fixationFont.height) / 2), "+");
}
// TODO, use bool instead of value to determine whether to draw
// check if countdown should be shown
if (showCountDown >= 0)
{
// set the countdown to white
glColor3(1f, 1f, 1f);
// set the text count
int countTextWidth = countdownFont.getTextWidth(showCountDown.ToString());
countdownFont.printLine((int)((getContentWidth() - countTextWidth) / 2), (int)((getContentHeight() - countdownFont.height) / 2), showCountDown.ToString());
}
// Check if we should draw grid
if (showGrid)
{
// loop through the cells
for (int i = 0; i < taskCells.Count; i++)
{
// retrieve cell reference
SpellerCell cell = taskCells[i];
// if cell is of a type that requires drawing
if (cell.cellType == SpellerCell.CellType.Input || cell.cellType == SpellerCell.CellType.Exit || cell.cellType == SpellerCell.CellType.Backspace)
{
// set white color for drawing
glColor3(1f, 1f, 1f);
// if cell type is input, draw letter, in case of backspace, draw backapace code, in case of exit, draw exit texture
if (cell.cellType == SpellerCell.CellType.Input || cell.cellType == SpellerCell.CellType.Backspace)
{
// get width of content that goes into cell
int contentWidth = inputFont.getTextWidth(cell.content);
// if too large fro cell, adjust font size and then reset to old values
//if (contentWidth > cell.width) {
// double shrinkFactor = cell.width / contentWidth;
// float originalHeight = inputFont.height;
// inputFont.init(this, inputFontFont, (uint)(originalHeight * shrinkFactor), inputFontInputs);
// inputFont.printLine((int)(cell.x + ((cell.width - inputFont.getTextWidth(cell.content)) / 2)), (int)(cell.y + ((cell.height - inputFont.height) / 2)), cell.content);
// inputFont.init(this, inputFontFont, (uint)originalHeight, inputFontInputs);
//} else
inputFont.printLine((int)(cell.x + ((cell.width - inputFont.getTextWidth(cell.content)) / 2)), (int)(cell.y + ((cell.height - inputFont.height) / 2)), cell.content);
}
else if (cell.cellType == SpellerCell.CellType.Exit)
{
glBindTexture2D(exitTexture);
// draw cell
glBeginTriangles();
// vertex 0
glTexCoord2(1.0f, 1.0f);
glVertex3(cell.x + cell.width, cell.y + cell.height, 0.0f);
glTexCoord2(1.0f, 0.0f);
glVertex3(cell.x + cell.width, cell.y, 0.0f);
glTexCoord2(0.0f, 0.0f);
glVertex3(cell.x, cell.y, 0.0f);
//vertex 1
glTexCoord2(0.0f, 1.0f);
glVertex3(cell.x, cell.y + cell.height, 0.0f);
glTexCoord2(1.0f, 1.0f);
glVertex3(cell.x + cell.width, cell.y + cell.height, 0.0f);
glTexCoord2(0.0f, 0.0f);
glVertex3(cell.x, cell.y, 0.0f);
glEnd();
}
}
}
// check if the selection should be drawn
if (selectionWidth != 0 && selectionHeight != 0)
{
// set the color
float colorR = 1, colorG = 1, colorB = 0;
if (mSelected)
{
colorG = 0;
}
// draw selection
drawRectangle(selectionX,
selectionY,
(selectionX + selectionWidth),
(selectionY + selectionHeight),
5,
colorR, colorG, colorB);
}
}
// TODO, use bool instead of value to determine whether to draw
// write the score text
if (score > -1)
{
glColor3(1f, 1f, 1f);
scoreFont.printLine(getContentWidth() - scoreFont.height * 9, 5, ("Score: " + score));
}
// TODO, use bool instead of value to determine whether to draw
// check if instructions should be shown
if (instructionText.Length != 0)
{
// set the text to white
glColor3(1f, 1f, 1f);
// print the text
textFont.printLine((getContentWidth() - instructionTextWidth) / 2, getContentHeight() / 2, instructionText);
}
// check if cues should be shown
if (cueText.Length != 0)
{
// set the text to white
glColor3(1f, 1f, 1f);
float yCueText = Math.Max(spacing + cueTextY, spacing + textFont.height);
// print the text
textFont.printLine((getContentWidth() - cueTextWidth) / 2, yCueText, cueText); // show line at minum height from above, in case font is small
drawLine(20, yCueText + textFont.height * 1.8f,
getContentWidth() - 20, yCueText + textFont.height * 1.8f,
2, false, 1, 1, 1);
}
// check if input should be shown
if (inputText.Length != 0)
{
// set the text to white
glColor3(1f, 1f, 1f);
// print the text
textFont.printLine((getContentWidth() - cueTextWidth) / 2, (spacing + textFont.height) * 3, inputText);
}
// check if there is no signal
if (showConnectionLost)
{
// set white color for drawing
glColor3(1f, 1f, 1f);
// print text
int textWidth = textFont.getTextWidth("Lost connection with device");
textFont.printLine((int)((getContentWidth() - textWidth) / 2), (int)((getContentHeight()) / 4), "Lost connection with device");
// set texture
glBindTexture2D(connectionLostTexture);
// draw texture
glBeginTriangles();
// vertex 0
glTexCoord2(0.0f, 0.0f);
glVertex3((getContentWidth() - 200) / 2, (getContentHeight() - 200) / 2, 0.0f);
glTexCoord2(1.0f, 0.0f);
glVertex3((getContentWidth() - 200) / 2 + 200, (getContentHeight() - 200) / 2, 0.0f);
glTexCoord2(1.0f, 1.0f);
glVertex3((getContentWidth() - 200) / 2 + 200, (getContentHeight() - 200) / 2 + 200, 0.0f);
//vertex 1
glTexCoord2(0.0f, 0.0f);
glVertex3((getContentWidth() - 200) / 2, (getContentHeight() - 200) / 2, 0.0f);
glTexCoord2(1.0f, 1.0f);
glVertex3((getContentWidth() - 200) / 2 + 200, (getContentHeight() - 200) / 2 + 200, 0.0f);
glTexCoord2(0.0f, 1.0f);
glVertex3((getContentWidth() - 200) / 2, (getContentHeight() - 200) / 2 + 200, 0.0f);
glEnd();
}
}