Scrolling now moves children.

This commit is contained in:
Harrison Deng 2019-04-27 23:22:33 -05:00
parent 1211cda508
commit 72188194e5

View File

@ -15,6 +15,8 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
{
public class UIScrollable : UIModule
{
BasicScissor basicScissor;
Rectangle viewport;
UIModuleGroup group;
Color scrollBarColor;
@ -24,8 +26,34 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
private bool horizontalSelected;
private Vector2 mouseRelativePosition;
float shiftX, shiftY;
int furthestX;
int furthestY;
public float XScrollPosition
{
get
{
return -shiftX;
}
set
{
shiftX = -value;
WidthOrXChange(true);
}
}
public float YScrollPosition
{
get
{
return shiftY;
}
set
{
shiftY = value;
HeightOrYChange(true);
}
}
UIModule furthestXModule, furthestYMod;
bool horScrollAvailable, vertScrollAvailable;
@ -139,7 +167,8 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
this.verticalBarTrack = verticalBarTrack;
this.background = background;
group = new UIModuleGroup(new BasicScissor());
basicScissor = new BasicScissor();
group = new UIModuleGroup();
HorizontalBarThickness = 12;
VerticalBarThickness = 12;
}
@ -174,23 +203,26 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
if (horScrollAvailable)
{
horizontalScrollBarBounds.X = (int)(((float)-shiftX / furthestX) * (group.Width - horizontalScrollBarBounds.Width));
horizontalScrollBarBounds.X = (int)(((float)-shiftX / group.Width) * (viewport.Width - horizontalScrollBarBounds.Width));
}
if (vertScrollAvailable)
{
verticalScrollBarBounds.Y = (int)(((float)-shiftY / furthestY) * (group.Height - verticalScrollBarBounds.Height));
verticalScrollBarBounds.Y = (int)(((float)-shiftY / group.Height) * (viewport.Height - verticalScrollBarBounds.Height));
}
base.Update(gameTime);
}
public override void Draw(ConsistentSpriteBatch spriteBatch)
{
background?.Draw(spriteBatch, Boundaries, color, origin: origin);
spriteBatch.End();
basicScissor.Begin(viewport, spriteBatch);
group.Draw(spriteBatch);
basicScissor.End();
spriteBatch.Begin();
if (horScrollAvailable)
{
horizontalScrollBar.Draw(spriteBatch, horizontalScrollBarBounds, scrollBarColor);
@ -211,15 +243,15 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
UIModule m = addModules[i];
int mFurthestX = m.Boundaries.X + m.Boundaries.Width;
int mFurthestY = m.Boundaries.Y + m.Boundaries.Height;
if (mFurthestX > furthestX)
if (mFurthestX > group.Width)
{
furthestXModule = m;
furthestX = mFurthestX;
group.Width = mFurthestX;
}
if (mFurthestY > furthestY)
if (mFurthestY > group.Height)
{
furthestYMod = m;
furthestY = mFurthestY;
group.Height = mFurthestY;
}
}
@ -233,33 +265,33 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
if (module == furthestXModule)
{
furthestX = 0;
group.Width = 0;
UIModule[] modules = group.GetCopyOfModules();
for (int i = 0; i < modules.Length; i++)
{
UIModule m = modules[i];
int mFurthestX = m.Boundaries.X + m.Boundaries.Width;
if (mFurthestX > furthestX)
if (mFurthestX > group.Width)
{
furthestXModule = m;
furthestX = mFurthestX;
group.Width = mFurthestX;
}
}
}
if (module == furthestYMod)
{
furthestY = 0;
group.Height = 0;
UIModule[] modules = group.GetCopyOfModules();
for (int i = 0; i < modules.Length; i++)
{
UIModule m = modules[i];
int mFurthestY = m.Boundaries.Y + m.Boundaries.Height;
if (mFurthestY > furthestY)
if (mFurthestY > group.Height)
{
furthestYMod = m;
furthestY = mFurthestY;
group.Height = mFurthestY;
}
}
}
@ -267,14 +299,15 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
private void WidthOrXChange(bool onlyXChange = false)
{
group.X = X + leftPadding;
group.X = X + leftPadding + (int)shiftX;
if (!onlyXChange)
{
group.Width = Width - rightPadding - leftPadding;
if (Width < furthestX)
viewport.X = X + leftPadding;
viewport.Width = Width - rightPadding - leftPadding;
if (Width < group.Width)
{
horScrollAvailable = true;
horizontalScrollBarBounds.Width = (int)(Width * ((float)Width / furthestX));
horizontalScrollBarBounds.Width = (int)(Width * ((float)Width / group.Width));
horizontalScrollBarBounds.Width = Math.Max(horizontalScrollBarBounds.Width, minimumBarLength);
}
else { horScrollAvailable = false; }
@ -282,17 +315,17 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
verticalScrollBarBounds.X = X;
if (!hideScrollBars)
{
group.Width -= VerticalBarThickness;
viewport.Width -= VerticalBarThickness;
if (!verticalBarLeftPosition)
{
verticalScrollBarBounds.X += group.Width;
verticalScrollBarBounds.X += viewport.Width;
}
}
else
{
if (!verticalBarLeftPosition)
{
verticalScrollBarBounds.X += group.Width - verticalScrollBarBounds.Width;
verticalScrollBarBounds.X += viewport.Width - verticalScrollBarBounds.Width;
}
}
}
@ -300,14 +333,15 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
private void HeightOrYChange(bool onlyYChange = false)
{
group.Y = Y + bottomPadding;
group.Y = Y + bottomPadding + (int)shiftY;
if (!onlyYChange)
{
group.Height = Height - bottomPadding - topPadding;
if (Height < furthestY)
viewport.Y = Y + bottomPadding;
viewport.Height = Height - bottomPadding - topPadding;
if (Height < group.Height)
{
vertScrollAvailable = true;
verticalScrollBarBounds.Height = (int)(Height * ((float)Height / furthestY));
verticalScrollBarBounds.Height = (int)(Height * ((float)Height / group.Height));
verticalScrollBarBounds.Height = Math.Max(verticalScrollBarBounds.Height, minimumBarLength);
}
else { vertScrollAvailable = false; }
@ -315,32 +349,31 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
horizontalScrollBarBounds.Y = Y;
if (!hideScrollBars)
{
group.Height -= HorizontalBarThickness;
viewport.Height -= HorizontalBarThickness;
if (!horizontalBarTopPosition)
{
horizontalScrollBarBounds.Y += group.Height;
horizontalScrollBarBounds.Y += viewport.Height;
}
else
{
group.Y += horizontalScrollBarBounds.Height;
viewport.Y += horizontalScrollBarBounds.Height;
}
}
else
{
if (!horizontalBarTopPosition)
{
horizontalScrollBarBounds.Y += group.Height - horizontalScrollBarBounds.Height;
horizontalScrollBarBounds.Y += viewport.Height - horizontalScrollBarBounds.Height;
}
}
}
}
public override bool KeyboardStateChanged(KeyboardState state)
{
if (state.IsKeyDown(Keys.Right))
{
shiftX -= 20;
XScrollPosition += 20;
}
return base.KeyboardStateChanged(state);
@ -388,12 +421,12 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
if (horizontalSelected)
{
float latestPosition = state.X - mouseRelativePosition.X;
shiftX = -(latestPosition / (Width - horizontalScrollBarBounds.Width)) * furthestX;
XScrollPosition = (latestPosition / (Width - horizontalScrollBarBounds.Width)) * group.Width;
}
else
{
float latestPosition = state.Y - mouseRelativePosition.Y;
shiftY = -(latestPosition / (Height - verticalScrollBarBounds.Height)) * furthestY;
YScrollPosition = -(latestPosition / (Height - verticalScrollBarBounds.Height)) * group.Height;
}
if (state.LeftButton == ButtonState.Released)
@ -403,15 +436,5 @@ namespace RecrownedAthenaeum.UI.Modular.Modules
}
return base.MouseStateChanged(state);
}
private void MoveHorizontalScrollBar(int position)
{
shiftX = -(int)(furthestX * ((float)position / Width));
}
private void MoveVerticalScrollBar(int position)
{
shiftY = (int)(furthestY * ((float)position / Height));
}
}
}