void DetermineItemsScrolling()
{
if( !eInfo.sScrollIndex )
DisableEditorButton( ITEMS_LEFTSCROLL );
else
EnableEditorButton( ITEMS_LEFTSCROLL );
//Right most scroll position. Calculated by taking every pair of numItems rounded up,
//and subtracting 7 (because a scroll index 0 is disabled if there are <=12 items,
//index 1 for <=14 items, index 2 for <=16 items...
if( eInfo.sScrollIndex == max( ((eInfo.sNumItems+1)/2)-6, 0 ) )
DisableEditorButton( ITEMS_RIGHTSCROLL );
else
EnableEditorButton( ITEMS_RIGHTSCROLL );
}
void EnsureSelectionType()
{
BOOLEAN fPrevBrushEnabledState = gfBrushEnabled;
//At time of writing, the only drawing mode supporting right mouse button
//area selections is the cave drawing mode.
gfAllowRightButtonSelections = ( iDrawMode == DRAW_MODE_CAVES );
//if we are erasing, we have more flexibility with the drawing modes.
if( iDrawMode >= DRAW_MODE_ERASE )
{
//erase modes supporting any cursor mode
gusSavedSelectionType = gusSelectionType;
gusSelectionWidth = gusPreserveSelectionWidth;
gfBrushEnabled = TRUE;
}
else switch( iDrawMode )
{ //regular modes
case DRAW_MODE_SAW_ROOM:
case DRAW_MODE_ROOM:
case DRAW_MODE_CAVES:
gusSavedBuildingSelectionType = gusSelectionType;
gusSelectionWidth = gusPreserveSelectionWidth;
gfBrushEnabled = TRUE;
break;
case DRAW_MODE_SLANTED_ROOF:
gusSelectionType = LINESELECTION;
gusSelectionWidth = 8;
gfBrushEnabled = FALSE;
break;
case DRAW_MODE_EXITGRID:
case DRAW_MODE_ROOMNUM:
case DRAW_MODE_FLOORS:
case DRAW_MODE_GROUND:
case DRAW_MODE_OSTRUCTS:
case DRAW_MODE_OSTRUCTS1:
case DRAW_MODE_OSTRUCTS2:
case DRAW_MODE_DEBRIS:
//supports all modes
gusSavedSelectionType = gusSelectionType;
gusSelectionWidth = gusPreserveSelectionWidth;
gfBrushEnabled = TRUE;
break;
default:
gusSelectionType = SMALLSELECTION;
gusSelectionWidth = gusPreserveSelectionWidth;
gfBrushEnabled = FALSE;
if ( !gfSummaryWindowActive )
{
gfRenderTaskbar = TRUE;
}
break;
}
if( gfBrushEnabled != fPrevBrushEnabledState )
{
if( gfBrushEnabled )
{
EnableEditorButton( TERRAIN_CYCLE_BRUSHSIZE );
EnableEditorButton( BUILDING_CYCLE_BRUSHSIZE );
EnableEditorButton( MAPINFO_CYCLE_BRUSHSIZE );
}
else
{
DisableEditorButton( TERRAIN_CYCLE_BRUSHSIZE );
DisableEditorButton( BUILDING_CYCLE_BRUSHSIZE );
DisableEditorButton( MAPINFO_CYCLE_BRUSHSIZE );
}
}
}
