public ShiftArrowInfo(ShiftArrow type, bool hilite, bool mousedown, Bitmap bm)
{
Type = type;
Hilite = hilite;
MouseDown = mousedown;
ArrowBitmap = bm;
}
/// <summary>
/// Handle the mouse move events when the mouse button is not pressed.
/// This needs to hilight/unhilight the shift arrows as appropriate.
/// </summary>
/// <param name="pxX"></param>
/// <param name="pxY"></param>
/// <returns>True if we need to redraw the screen</returns>
public override bool HandleMouseMove(int pxX, int pxY)
{
ShiftArrow eNewSelection = ShiftArrow.None;
// Make sure the mouse is in the shift-arrow area
if (pxX >= k_pxToolboxIndent &&
pxY >= k_pxToolboxIndent &&
pxX < k_pxToolboxWidth &&
pxY < k_pxToolboxHeight)
{
pxX -= k_pxShiftArrowBoxOriginX;
pxY -= k_pxShiftArrowBoxOriginY;
// If we just use the bounding box rects, we'll get strange results
// because the rects overlap and some rects will take precedence
// over the others.
// \ t /
// To avoid this, we use the diagonals to divide \ /
// up the area into top,left,bottom,right triangles l X r
// before applying the rectangle check. / \
// / b \
int pxX0 = pxX - k_pxShiftArrowInsetX;
int pxY0 = pxY - k_pxShiftArrowInsetY;
int pxX2 = k_pxShiftArrowBoxWidth - k_pxShiftArrowInsetX - pxX;
// Bottom: pxX0 < pxY0 && pxX2 < pxY0
// Left: pxX0 < pxY0 && pxX2 > pxY0
// Right: pxX0 > pxY0 && pxX2 < pxY0
// Top: pxX0 > pxY0 && pxX2 > pxY0
if ((pxX0 < pxY0 && pxX2 > pxY0) || // Left triangle
(pxX0 > pxY0 && pxX2 < pxY0) // Right triangle
)
{
// Note that k_pxShiftArrowWidth/Height are reversed because the
// left/right arrows are rotated.
int pxLeft = k_pxShiftArrowInsetX;
int pxRight = pxLeft + k_pxShiftArrowHeight;
int pxTop = (k_pxShiftArrowBoxHeight - k_pxShiftArrowWidth) / 2;
int pxBottom = pxTop + k_pxShiftArrowWidth;
if (pxX >= pxLeft && pxX < pxRight && pxY >= pxTop && pxY < pxBottom)
{
eNewSelection = ShiftArrow.Left;
}
pxRight = k_pxShiftArrowBoxWidth - k_pxShiftArrowInsetX;
pxLeft = pxRight - k_pxShiftArrowHeight;
if (pxX >= pxLeft && pxX < pxRight && pxY >= pxTop && pxY < pxBottom)
{
eNewSelection = ShiftArrow.Right;
}
}
else
{
int pxLeft = (k_pxShiftArrowBoxWidth - k_pxShiftArrowWidth) / 2;
int pxRight = pxLeft + k_pxShiftArrowWidth;
int pxTop = k_pxShiftArrowInsetY;
int pxBottom = pxTop + k_pxShiftArrowHeight;
if (pxX >= pxLeft && pxX < pxRight && pxY >= pxTop && pxY < pxBottom)
{
eNewSelection = ShiftArrow.Up;
}
pxBottom = k_pxShiftArrowBoxHeight - k_pxShiftArrowInsetY;
pxTop = pxBottom - k_pxShiftArrowHeight;
if (pxX >= pxLeft && pxX < pxRight && pxY >= pxTop && pxY < pxBottom)
{
eNewSelection = ShiftArrow.Down;
}
}
}
// If the new selection is the same as the current selection, we're done.
if (m_eHilightedShiftArrow == eNewSelection)
{
return(false);
}
else
{
// Remove current selection.
m_eHilightedShiftArrow = eNewSelection;
return(true);
}
}
/// <summary>
/// Handle the mouse move events when the mouse button is not pressed.
/// This needs to hilight/unhilight the shift arrows as appropriate.
/// </summary>
/// <param name="pxX"></param>
/// <param name="pxY"></param>
/// <returns>True if we need to redraw the screen</returns>
public override bool HandleMouseMove(int pxX, int pxY)
{
ShiftArrow eNewSelection = ShiftArrow.None;
// Make sure the mouse is in the shift-arrow area
if (pxX >= k_pxToolboxIndent
&& pxY >= k_pxToolboxIndent
&& pxX < k_pxToolboxWidth
&& pxY < k_pxToolboxHeight)
{
pxX -= k_pxShiftArrowBoxOriginX;
pxY -= k_pxShiftArrowBoxOriginY;
// If we just use the bounding box rects, we'll get strange results
// because the rects overlap and some rects will take precedence
// over the others.
// \ t /
// To avoid this, we use the diagonals to divide \ /
// up the area into top,left,bottom,right triangles l X r
// before applying the rectangle check. / \
// / b \
int pxX0 = pxX - k_pxShiftArrowInsetX;
int pxY0 = pxY - k_pxShiftArrowInsetY;
int pxX2 = k_pxShiftArrowBoxWidth - k_pxShiftArrowInsetX - pxX;
// Bottom: pxX0 < pxY0 && pxX2 < pxY0
// Left: pxX0 < pxY0 && pxX2 > pxY0
// Right: pxX0 > pxY0 && pxX2 < pxY0
// Top: pxX0 > pxY0 && pxX2 > pxY0
if ((pxX0 < pxY0 && pxX2 > pxY0) // Left triangle
|| (pxX0 > pxY0 && pxX2 < pxY0) // Right triangle
)
{
// Note that k_pxShiftArrowWidth/Height are reversed because the
// left/right arrows are rotated.
int pxLeft = k_pxShiftArrowInsetX;
int pxRight = pxLeft + k_pxShiftArrowHeight;
int pxTop = (k_pxShiftArrowBoxHeight - k_pxShiftArrowWidth) / 2;
int pxBottom = pxTop + k_pxShiftArrowWidth;
if (pxX >= pxLeft && pxX < pxRight && pxY >= pxTop && pxY < pxBottom)
eNewSelection = ShiftArrow.Left;
pxRight = k_pxShiftArrowBoxWidth - k_pxShiftArrowInsetX;
pxLeft = pxRight - k_pxShiftArrowHeight;
if (pxX >= pxLeft && pxX < pxRight && pxY >= pxTop && pxY < pxBottom)
eNewSelection = ShiftArrow.Right;
}
else
{
int pxLeft = (k_pxShiftArrowBoxWidth - k_pxShiftArrowWidth) / 2;
int pxRight = pxLeft + k_pxShiftArrowWidth;
int pxTop = k_pxShiftArrowInsetY;
int pxBottom = pxTop + k_pxShiftArrowHeight;
if (pxX >= pxLeft && pxX < pxRight && pxY >= pxTop && pxY < pxBottom)
eNewSelection = ShiftArrow.Up;
pxBottom = k_pxShiftArrowBoxHeight - k_pxShiftArrowInsetY;
pxTop = pxBottom - k_pxShiftArrowHeight;
if (pxX >= pxLeft && pxX < pxRight && pxY >= pxTop && pxY < pxBottom)
eNewSelection = ShiftArrow.Down;
}
}
// If the new selection is the same as the current selection, we're done.
if (m_eHilightedShiftArrow == eNewSelection)
return false;
else
{
// Remove current selection.
m_eHilightedShiftArrow = eNewSelection;
return true;
}
}
public ShiftArrowInfo(ShiftArrow type, bool hilite, bool mousedown, Bitmap bm)
{
Type = type;
Hilite = hilite;
MouseDown = mousedown;
ArrowBitmap = bm;
}
