bool ParallelPlane::InRange(const int& row){
return InFilter(row);
}
void g2LabelEdit::KeyEvent(unsigned char key, bool IsSpecial)
{
// In OSX the backspace maps to DEL while DEL maps to backspace, need to swap
#if __APPLE__
if(key == 127)
key = 8;
else if(key == 8)
key = 127;
#endif
// Ignore all inputs if disabled
if(GetDisabled())
return;
/*** User Movement / Editing ***/
// If system key (i.e. left/right)
else if(IsSpecial)
{
// Move far left/right
if(key == GLUT_KEY_LEFT && glutGetModifiers() == GLUT_ACTIVE_CTRL)
{
CursorIndex = 0;
ViewIndex = 0;
}
else if(key == GLUT_KEY_RIGHT && glutGetModifiers() == GLUT_ACTIVE_CTRL)
{
// Move the cursor to the far right and calculate
// what is the best position for the view buffer to be moved to
CursorIndex = (int)strlen(TextBuffer);
// When something is written on-screen, check to see where our
// left-view limit should be
ViewIndex = (int)strlen(TextBuffer) - RenderableLeftChars(CursorIndex);
}
// If left/right, move the cursor
if(key == GLUT_KEY_LEFT && CursorIndex > 0)
{
// Move cursor to left
CursorIndex--;
// Move view left if we can
if(CursorIndex < ViewIndex)
ViewIndex--;
}
else if(key == GLUT_KEY_RIGHT && CursorIndex < (int)strlen(TextBuffer))
{
// Move cursor to right
CursorIndex++;
// If the movement will cause us to be offsreen..
while(LengthToCursor() > Width)
ViewIndex++;
}
}
// Backspace
else if(key == 8)
{
// Is there anything to delete?
if(strlen(TextBuffer) <= 0)
return;
// Ignore if we are at the 0 position
else if(CursorIndex <= 0)
return;
else
{
// Delete this character by shifting everything from right to left by 1
// Note that this copies the null terminator
for(size_t i = CursorIndex; i <= strlen(TextBuffer); i++)
TextBuffer[i - 1] = TextBuffer[i];
// Decrease the cursor position
CursorIndex--;
// Is the cursor now smaller than the current view index
// Move view left if we can
while(CursorIndex < ViewIndex)
{
ViewIndex -= 5;
if(ViewIndex < 0)
ViewIndex = 0;
}
}
}
// Delete
else if(key == 127)
{
// Is there anything to delete?
if(CursorIndex >= (int)strlen(TextBuffer))
return;
else
{
// Delete this character by shifting everything from right to left by 1
// Note that this copies the null terminator
for(size_t i = CursorIndex; i < strlen(TextBuffer); i++)
TextBuffer[i] = TextBuffer[i + 1];
// Cursor does not move
}
}
// Commit / enter
else if(key == '\r')
{
DidUserReturn = true;
}
/*** Cut, Copy, or Paste ***/
// Note that when doing a ctrl+key event, the given number
// is offset from 'a', meaning true ascii = 'a' - key + 1
// Cut text
else if(key == ('x' - 'a' + 1) && glutGetModifiers() == GLUT_ACTIVE_CTRL)
{
// Copy into buffer, then set text to empty
CopyBuffer();
SetText("");
}
// Copy text
else if(key == ('c' - 'a' + 1) && glutGetModifiers() == GLUT_ACTIVE_CTRL)
{
// Direct copy
CopyBuffer();
}
// Paste text
else if(key == ('v' - 'a' + 1) && glutGetModifiers() == GLUT_ACTIVE_CTRL)
{
// Direct paste
PasteBuffer();
}
/*** Regular User Input ***/
// Standard keyboard input; add character
else if(isprint(key) != 0)
{
// Can we actually add anything?
if(strlen(TextBuffer) < g2LabelEdit_TextBufferLength - 1 && !IsSpecial)
{
// Ignore if it isn't a valid character
if(!InFilter(key))
return;
// If we are writing to the end, make sure to string-cap
if(CursorIndex == (int)strlen(TextBuffer))
{
// Write to the old string-end and move the terminator a little further
TextBuffer[CursorIndex + 0] = key;
TextBuffer[CursorIndex + 1] = '\0';
}
// Offset one char to the right, then set
else
{
// Null-terminate the end of the string
int Length = (int)strlen(TextBuffer);
for(int i = Length; i > CursorIndex; i--)
TextBuffer[i] = TextBuffer[i - 1];
TextBuffer[CursorIndex] = key;
TextBuffer[Length + 1] = '\0';
}
// Grow cursor position to be after the current char
CursorIndex++;
}
// If the movement will cause us to be offsreen..
while(LengthToCursor() > Width)
ViewIndex++;
}
// All done for each type of event
}
