public void setSequence(int index)
{
if (index > sequences.Count - 1 || index < 0)
{
Debug.LogError("Index out of range in sequences");
}
else
{
sequence = sequences[index];
refreshView();
}
}
public static bool Sequencer(SequenceInterface sequence, ref int currentFrame, ref bool expanded, ref int selectedEntry, ref int firstFrame, SEQUENCER_OPTIONS sequenceOptions)
{
var ret = false;
var io = ImGui.GetIO();
var cx = (int)(io.MousePos.X);
var cy = (int)(io.MousePos.Y);
var legendWidth = 120;
var deleteAnimationEntry = -1;
var duplicateAnimationEntry = -1;
var insertAnimationEntry = -1;
var ItemHeight = 20;
var popupOpened = false;
var sequenceCount = sequence.ItemCount;
if (sequenceCount == 0)
{
return(false);
}
ImGui.BeginGroup();
var draw_list = ImGui.GetWindowDrawList();
var canvas_pos = ImGui.GetCursorScreenPos(); // ImDrawList API uses screen coordinates!
var canvas_size = ImGui.GetContentRegionAvail(); // Resize canvas to what's available
int firstFrameUsed = firstFrame;
int controlHeight = sequenceCount * ItemHeight;
for (int i = 0; i < sequenceCount; i++)
{
controlHeight += sequence.GetCustomHeight(i);
}
int frameCount = Math.Max(sequence.FrameMax - sequence.FrameMin, 1);
// ImVector<CustomDraw> customDraws;
// ImVector<CustomDraw> compactCustomDraws;
var customDraws = new List <CustomDraw>();
var compactCustomDraws = new List <CustomDraw>();
// zoom in/out
int visibleFrameCount = (int)Math.Floor((canvas_size.X - legendWidth) / framePixelWidth);
float barWidthRatio = Math.Min(visibleFrameCount / (float)frameCount, 1f);
float barWidthInPixels = barWidthRatio * (canvas_size.X - legendWidth);
var regionRect = new ImRect(canvas_pos, canvas_pos + canvas_size);
if (ImGui.IsWindowFocused() && io.KeyAlt && io.MouseDown[2])
{
if (!panningView)
{
panningViewSource = io.MousePos;
panningView = true;
panningViewFrame = firstFrame;
}
firstFrame = panningViewFrame - (int)((io.MousePos.X - panningViewSource.X) / framePixelWidth);
firstFrame = Math.Clamp(firstFrame, sequence.FrameMin, sequence.FrameMax - visibleFrameCount);
}
if (panningView && !io.MouseDown[2])
{
panningView = false;
}
framePixelWidthTarget = Math.Clamp(framePixelWidthTarget, 0.1f, 50f);
framePixelWidth = Lerp(framePixelWidth, framePixelWidthTarget, 0.33f);
frameCount = sequence.FrameMax - sequence.FrameMin;
if (visibleFrameCount >= frameCount)
{
firstFrame = sequence.FrameMin;
}
// --
if (!expanded)
{
ImGui.InvisibleButton("canvas", new Vector2(canvas_size.X - canvas_pos.X, (float)ItemHeight));
draw_list.AddRectFilled(canvas_pos, new Vector2(canvas_size.X + canvas_pos.X, canvas_pos.Y + ItemHeight), 0xFF3D3837, 0);
var tmps = $"{frameCount} Frames / {sequenceCount} entries";
draw_list.AddText(new Vector2(canvas_pos.X + 26, canvas_pos.Y + 2), 0xFFFFFFFF, tmps);
}
else
{
bool hasScrollBar = true;
/*
* int framesPixelWidth = int(frameCount * framePixelWidth);
* if ((framesPixelWidth + legendWidth) >= canvas_size.X)
* {
* hasScrollBar = true;
* }
*/
// test scroll area
var headerSize = new Vector2(canvas_size.X, (float)ItemHeight);
var scrollBarSize = new Vector2(canvas_size.X, 14f);
ImGui.InvisibleButton("topBar", headerSize);
draw_list.AddRectFilled(canvas_pos, canvas_pos + headerSize, 0xFFFF0000, 0);
Vector2 childFramePos = ImGui.GetCursorScreenPos();
var childFrameSize = new Vector2(canvas_size.X, canvas_size.Y - 8f - headerSize.Y - (hasScrollBar ? scrollBarSize.Y : 0));
ImGui.PushStyleColor(ImGuiCol.FrameBg, 0);
ImGui.BeginChildFrame(889, childFrameSize);
sequence.focused = ImGui.IsWindowFocused();
ImGui.InvisibleButton("contentBar", new Vector2(canvas_size.X, (float)(controlHeight)));
Vector2 contentMin = ImGui.GetItemRectMin();
Vector2 contentMax = ImGui.GetItemRectMax();
var contentRect = new ImRect(contentMin, contentMax);
float contentHeight = contentMax.Y - contentMin.Y;
// full background
draw_list.AddRectFilled(canvas_pos, canvas_pos + canvas_size, 0xFF242424, 0);
// current frame top
var topRect = new ImRect(new Vector2(canvas_pos.X + legendWidth, canvas_pos.Y), new Vector2(canvas_pos.X + canvas_size.X, canvas_pos.Y + ItemHeight));
if (!MovingCurrentFrame && !MovingScrollBar && movingEntry == -1 && sequenceOptions.HasFlag(SEQUENCER_OPTIONS.SEQUENCER_CHANGE_FRAME) && currentFrame >= 0 && topRect.Contains(io.MousePos) && io.MouseDown[0])
{
MovingCurrentFrame = true;
}
if (MovingCurrentFrame)
{
if (true)
{
currentFrame = (int)((io.MousePos.X - topRect.Min.X) / framePixelWidth) + firstFrameUsed;
if (currentFrame < sequence.FrameMin)
{
currentFrame = sequence.FrameMin;
}
if (currentFrame >= sequence.FrameMax)
{
currentFrame = sequence.FrameMax;
}
}
if (!io.MouseDown[0])
{
MovingCurrentFrame = false;
}
}
// Draw header controls on the left
draw_list.AddRectFilled(canvas_pos, new Vector2(canvas_size.X + canvas_pos.X, canvas_pos.Y + ItemHeight), 0xFF3D3837, 0);
if (sequenceOptions.HasFlag(SEQUENCER_OPTIONS.SEQUENCER_ADD))
{
const uint PauseColor = 0xFFf1c40f;
const uint LoopColor = 0xFF0fc4f1;
var nextButtonPosition = new Vector2(canvas_pos.X + legendWidth - ItemHeight, canvas_pos.Y + 2);
if (SequencerButton(draw_list, nextButtonPosition, 'P', sequence.IsPaused, PauseColor))
{
Tooltip(sequence.IsPaused ? "Resume" : "Pause");
if (io.MouseReleased[0])
{
sequence.IsPaused = !sequence.IsPaused;
}
}
nextButtonPosition.X -= ButtonDistance;
if (SequencerButton(draw_list, nextButtonPosition, 'L', sequence.ForceLoop, LoopColor))
{
Tooltip("Force loop");
if (io.MouseReleased[0])
{
sequence.ForceLoop = !sequence.ForceLoop;
}
}
nextButtonPosition.X -= ButtonDistance;
if (SequencerButton(draw_list, nextButtonPosition, 'A', false, ColorWhite))
{
Tooltip("Add new animation");
if (io.MouseReleased[0])
{
insertAnimationEntry = sequence.ItemCount;
}
}
}
//header frame number and lines
const int MinimumDistanceBetweenElements = 100;
int modFrameCount = 5; // after how many frames should print the frame number
int frameStep = 1;
while ((modFrameCount * framePixelWidth) < MinimumDistanceBetweenElements)
{
modFrameCount *= 2;
frameStep *= 2;
}
;
int halfModFrameCount = modFrameCount / 2;
Action <int, int> drawLine = (int i, int regionHeight) => {
const uint TextColor = 0xFFBBBBBB;
bool baseIndex = ((i % modFrameCount) == 0) || (i == sequence.FrameMax || i == sequence.FrameMin);
bool halfIndex = (i % halfModFrameCount) == 0;
int px = (int)canvas_pos.X + (int)(i * framePixelWidth) + legendWidth - (int)(firstFrameUsed * framePixelWidth);
int tiretStart = baseIndex ? 4 : (halfIndex ? 10 : 14);
int tiretEnd = baseIndex ? regionHeight : ItemHeight;
if (px <= (canvas_size.X + canvas_pos.X) && px >= (canvas_pos.X + legendWidth))
{
draw_list.AddLine(new Vector2((float)px, canvas_pos.Y + (float)tiretStart), new Vector2((float)px, canvas_pos.Y + (float)tiretEnd - 1), 0xFF606060, 1);
draw_list.AddLine(new Vector2((float)px, canvas_pos.Y + (float)ItemHeight), new Vector2((float)px, canvas_pos.Y + (float)regionHeight - 1), 0x30606060, 1);
}
if (baseIndex && px >= (canvas_pos.X + legendWidth))
{
draw_list.AddText(new Vector2((float)px + 3f, canvas_pos.Y), TextColor, $"{i}");
}
};
for (int i = sequence.FrameMin; i <= sequence.FrameMax; i += frameStep)
{
drawLine(i, ItemHeight);
}
drawLine(sequence.FrameMin, ItemHeight);
drawLine(sequence.FrameMax, ItemHeight);
/*
* draw_list.AddLine(canvas_pos, new Vector2(canvas_pos.X, canvas_pos.Y + controlHeight), 0xFF000000, 1);
* draw_list.AddLine(new Vector2(canvas_pos.X, canvas_pos.Y + ItemHeight), new Vector2(canvas_size.X, canvas_pos.Y + ItemHeight), 0xFF000000, 1);
*/
// clip content
draw_list.PushClipRect(childFramePos, childFramePos + childFrameSize);
// draw item names in the legend rect on the left
for (int i = 0, customHeight = 0; i < sequenceCount; i++)
{
var animation = sequence.GetAnimation(i);
var tPos = new Vector2(contentMin.X + 3, contentMin.Y + i * ItemHeight + 2 + customHeight);
var tEndPos = new Vector2(contentMin.X + 3 + legendWidth, contentMin.Y + (i + 1) * ItemHeight + 2 + customHeight);
var canMouseClickOnRow = new ImRect(tPos, tEndPos).Contains(io.MousePos) &&
io.MousePos.Y > childFramePos.Y && io.MousePos.Y <= childFramePos.Y + childFrameSize.Y &&
ImGui.IsWindowFocused();
if (canMouseClickOnRow && io.MouseDown[0] && ImGui.IsWindowHovered())
{
selectedEntry = i;
}
draw_list.AddText(tPos, 0xFFFFFFFF, animation.Name ?? $"#{i + 1}");
if (sequenceOptions.HasFlag(SEQUENCER_OPTIONS.SEQUENCER_DEL))
{
var isAnimationVisible = sequence.IsVisible(i);
var buttonPos = new Vector2(contentMin.X + legendWidth - ButtonDistance + 2 - 10, tPos.Y + 2);
if (SequencerButton(draw_list, buttonPos, 'H', !isAnimationVisible, 0xff15208f) && canMouseClickOnRow)
{
Tooltip("Hide animation");
if (io.MouseReleased[0])
{
sequence.SetVisibility(i, !isAnimationVisible);
}
}
var isFocused = sequence.IsFocus(i);
buttonPos.X -= ButtonDistance;
if (SequencerButton(draw_list, buttonPos, 'S', isFocused, 0xff69992f) && canMouseClickOnRow)
{
Tooltip("Display only this animation");
if (io.MouseReleased[0])
{
if (isFocused)
{
sequence.ResetFocus();
}
else
{
sequence.SetFocus(i);
}
}
}
buttonPos.X -= ButtonDistance;
if (SequencerButton(draw_list, buttonPos, 'D', false, ColorWhite) && canMouseClickOnRow)
{
Tooltip("Duplicate animation");
if (io.MouseReleased[0])
{
duplicateAnimationEntry = i;
}
}
buttonPos.X -= ButtonDistance;
if (SequencerButton(draw_list, buttonPos, 'R', false, ColorWhite) && canMouseClickOnRow)
{
Tooltip("Remove animation");
if (io.MouseReleased[0])
{
deleteAnimationEntry = i;
}
}
}
customHeight += sequence.GetCustomHeight(i);
}
// clipping rect so items bars are not visible in the legend on the left when scrolled
//
// slots background
for (int i = 0, customHeight = 0; i < sequenceCount; i++)
{
// Draw as a zebra background
uint col = (i & 1) != 0 ? 0xFF3A3636 : 0xFF413D3D;
var localCustomHeight = sequence.GetCustomHeight(i);
Vector2 pos = new Vector2(contentMin.X + legendWidth, contentMin.Y + ItemHeight * i + 1 + customHeight);
Vector2 sz = new Vector2(canvas_size.X + canvas_pos.X, pos.Y + ItemHeight - 1 + localCustomHeight);
if (!popupOpened && cy >= pos.Y && cy < pos.Y + (ItemHeight + localCustomHeight) && movingEntry == -1 && cx > contentMin.X && cx < contentMin.X + canvas_size.X)
{
col += 0x80201008;
pos.X -= legendWidth;
}
draw_list.AddRectFilled(pos, sz, col, 0);
customHeight += localCustomHeight;
}
draw_list.PushClipRect(childFramePos + new Vector2((float)(legendWidth), 0f), childFramePos + childFrameSize);
// vertical frame lines in content area
Action <int, int> drawLineContent = (int i, int regionHeight) => {
int px = (int)canvas_pos.X + (int)(i * framePixelWidth) + legendWidth - (int)(firstFrameUsed * framePixelWidth);
int tiretStart = (int)(contentMin.Y);
int tiretEnd = (int)(contentMax.Y);
if (px <= (canvas_size.X + canvas_pos.X) && px >= (canvas_pos.X + legendWidth))
{
//draw_list.AddLine(new Vector2((float)px, canvas_pos.Y + (float)tiretStart), new Vector2((float)px, canvas_pos.Y + (float)tiretEnd - 1), 0xFF606060, 1);
draw_list.AddLine(new Vector2((float)(px), (float)(tiretStart)), new Vector2((float)(px), (float)(tiretEnd)), 0x30606060, 1);
}
};
for (int i = sequence.FrameMin; i <= sequence.FrameMax; i += frameStep)
{
drawLineContent(i, (int)(contentHeight));
}
drawLineContent(sequence.FrameMin, (int)(contentHeight));
drawLineContent(sequence.FrameMax, (int)(contentHeight));
// selection
bool selected = (selectedEntry >= 0);
if (selected)
{
// draw background differently if selected
var customHeight = 0;
for (int i = 0; i < selectedEntry; i++)
{
customHeight += sequence.GetCustomHeight(i);
}
;
draw_list.AddRectFilled(
new Vector2(contentMin.X, contentMin.Y + ItemHeight * selectedEntry + customHeight),
new Vector2(contentMin.X + canvas_size.X, contentMin.Y + ItemHeight * (selectedEntry + 1) + customHeight),
0x801080FF, 1f);
}
// slots
for (int i = 0, customHeight = 0; i < sequenceCount; i++)
{
var animation = sequence.GetAnimation(i);
var localCustomHeight = sequence.GetCustomHeight(i);
Vector2 pos = new Vector2(contentMin.X + legendWidth - firstFrameUsed * framePixelWidth, contentMin.Y + ItemHeight * i + 1 + customHeight);
var slotP1 = new Vector2(pos.X + animation.FrameStart * framePixelWidth, pos.Y + 2);
var slotP2 = new Vector2(pos.X + animation.FrameEnd * framePixelWidth + framePixelWidth, pos.Y + ItemHeight - 2);
var slotP3 = new Vector2(pos.X + animation.FrameEnd * framePixelWidth + framePixelWidth, pos.Y + ItemHeight - 2 + localCustomHeight);
uint slotColor = animation.Color | 0xFF000000;
uint slotColorHalf = (animation.Color & 0xFFFFFF) | 0x40000000;
if (slotP1.X <= (canvas_size.X + contentMin.X) && slotP2.X >= (contentMin.X + legendWidth))
{
draw_list.AddRectFilled(slotP1, slotP3, slotColorHalf, 2);
draw_list.AddRectFilled(slotP1, slotP2, slotColor, 2);
}
if (new ImRect(slotP1, slotP2).Contains(io.MousePos) && io.MouseDoubleClicked[0])
{
sequence.DoubleClick(i);
}
var rects = new ImRect[]
{
new ImRect(slotP1, new Vector2(slotP1.X + AnimationBarSideSelectionWidth, slotP2.Y)),
new ImRect(new Vector2(slotP2.X - AnimationBarSideSelectionWidth, slotP1.Y), slotP2),
new ImRect(slotP1, slotP2)
};
var quadColor = new uint[] { 0xFFFFFFFF, 0xFFFFFFFF, slotColor + (selected ? 0u : 0x202020u) };
if (movingEntry == -1 && (sequenceOptions.HasFlag(SEQUENCER_OPTIONS.SEQUENCER_EDIT_STARTEND))) // TODOFOCUS && backgroundRect.Contains(io.MousePos))
{
const uint AnimationResizeHoverColor = 0xFFFFFFFFu;
uint AnimationBarHoverColor = slotColor + 0x202020;
var animBarLeftRect = new ImRect(slotP1, new Vector2(slotP1.X + AnimationBarSideSelectionWidth, slotP2.Y));
var animBarRightRect = new ImRect(new Vector2(slotP2.X - AnimationBarSideSelectionWidth, slotP1.Y), slotP2);
var animBarRect = new ImRect(slotP1, slotP2);
var animationBarPartSelection = AnimationBarPart.None;
if (animBarLeftRect.Contains(io.MousePos))
{
animationBarPartSelection = AnimationBarPart.SelectionLeft;
draw_list.AddRectFilled(animBarLeftRect.Min, animBarLeftRect.Max, AnimationResizeHoverColor, 2);
}
else if (animBarRightRect.Contains(io.MousePos))
{
animationBarPartSelection = AnimationBarPart.SelectionRight;
draw_list.AddRectFilled(animBarRightRect.Min, animBarRightRect.Max, AnimationResizeHoverColor, 2);
}
else if (animBarRect.Contains(io.MousePos))
{
animationBarPartSelection = AnimationBarPart.Bar;
draw_list.AddRectFilled(animBarRect.Min, animBarRect.Max, AnimationBarHoverColor, 2);
}
if (ImGui.IsMouseClicked(0) && animationBarPartSelection != AnimationBarPart.None)
{
if (!new ImRect(childFramePos, childFramePos + childFrameSize).Contains(io.MousePos))
{
continue;
}
if (!MovingScrollBar && !MovingCurrentFrame)
{
movingEntry = i;
movingPos = cx;
movingPart = animationBarPartSelection;
sequence.BeginEdit(movingEntry);
break;
}
}
}
// custom draw
if (localCustomHeight > 0)
{
var rp = new Vector2(canvas_pos.X, contentMin.Y + ItemHeight * i + 1 + customHeight);
var customRect = new ImRect(rp + new Vector2(legendWidth - (firstFrameUsed - sequence.FrameMin - 0.5f) * framePixelWidth, (float)(ItemHeight)),
rp + new Vector2(legendWidth + (sequence.FrameMax - firstFrameUsed - 0.5f + 2f) * framePixelWidth, (float)(localCustomHeight + ItemHeight)));
var clippingRect = new ImRect(rp + new Vector2((float)(legendWidth), (float)(ItemHeight)), rp + new Vector2(canvas_size.X, (float)(localCustomHeight + ItemHeight)));
var legendRect = new ImRect(rp + new Vector2(0f, (float)(ItemHeight)), rp + new Vector2((float)(legendWidth), (float)(localCustomHeight)));
var legendClippingRect = new ImRect(canvas_pos + new Vector2(0f, (float)(ItemHeight)), canvas_pos + new Vector2((float)(legendWidth), (float)(localCustomHeight + ItemHeight)));
customDraws.Add(new CustomDraw
{
index = i,
customRect = customRect,
legendRect = legendRect,
clippingRect = clippingRect,
legendClippingRect = legendClippingRect
});
}
else
{
var rp = new Vector2(canvas_pos.X, contentMin.Y + ItemHeight * i + customHeight);
var customRect = new ImRect(rp + new Vector2(legendWidth - (firstFrameUsed - sequence.FrameMin - 0.5f) * framePixelWidth, (float)(0f)),
rp + new Vector2(legendWidth + (sequence.FrameMax - firstFrameUsed - 0.5f + 2f) * framePixelWidth, (float)(ItemHeight)));
var clippingRect = new ImRect(rp + new Vector2((float)(legendWidth), (float)(0f)), rp + new Vector2(canvas_size.X, (float)(ItemHeight)));
compactCustomDraws.Add(new CustomDraw
{
index = i,
customRect = customRect,
legendRect = new ImRect(),
clippingRect = clippingRect,
legendClippingRect = new ImRect()
});
}
customHeight += localCustomHeight;
}
// moving
if (/*backgroundRect.Contains(io.MousePos) && */ movingEntry >= 0)
{
ImGui.CaptureMouseFromApp();
int diffFrame = (int)((cx - movingPos) / framePixelWidth);
if (Math.Abs(diffFrame) > 0)
{
var animation = sequence.GetAnimation(movingEntry);
selectedEntry = movingEntry;
if (movingPart.HasFlag(AnimationBarPart.SelectionLeft))
{
animation.FrameStart += diffFrame;
}
if (movingPart.HasFlag(AnimationBarPart.SelectionRight))
{
animation.FrameEnd += diffFrame;
}
if (animation.FrameStart < 0)
{
if (movingPart.HasFlag(AnimationBarPart.SelectionRight))
{
animation.FrameEnd -= animation.FrameStart;
}
animation.FrameStart = 0;
}
if (movingPart.HasFlag(AnimationBarPart.SelectionLeft) && animation.FrameStart > animation.FrameEnd)
{
animation.FrameStart = animation.FrameEnd;
}
if (movingPart.HasFlag(AnimationBarPart.SelectionRight) && animation.FrameEnd < animation.FrameStart)
{
animation.FrameEnd = animation.FrameStart;
}
movingPos += (int)(diffFrame * framePixelWidth);
}
if (!io.MouseDown[0])
{
// single select
if (/*diffFrame != 0 &&*/ movingPart != 0)
{
selectedEntry = movingEntry;
ret = true;
}
movingEntry = -1;
sequence.EndEdit();
}
}
// cursor
if (currentFrame >= firstFrame && currentFrame <= sequence.FrameMax)
{
const float cursorWidth = 8f;
float cursorOffset = contentMin.X + legendWidth + (currentFrame - firstFrameUsed) * framePixelWidth + framePixelWidth / 2 - cursorWidth * 0.5f;
draw_list.AddLine(new Vector2(cursorOffset, canvas_pos.Y), new Vector2(cursorOffset, contentMax.Y), 0xA02A2AFF, cursorWidth);
draw_list.AddText(new Vector2(cursorOffset + 10, canvas_pos.Y + 2), 0xFF2A2AFF, $"{currentFrame}");
}
draw_list.PopClipRect();
draw_list.PopClipRect();
foreach (var customDraw in customDraws)
{
sequence.CustomDraw(customDraw.index, draw_list, customDraw.customRect, customDraw.legendRect, customDraw.clippingRect, customDraw.legendClippingRect);
}
foreach (var customDraw in compactCustomDraws)
{
sequence.CustomDrawCompact(customDraw.index, draw_list, customDraw.customRect, customDraw.clippingRect);
}
// copy paste
if (sequenceOptions.HasFlag(SEQUENCER_OPTIONS.SEQUENCER_COPYPASTE))
{
var rectCopy = new ImRect(new Vector2(contentMin.X + 100, canvas_pos.Y + 2)
, new Vector2(contentMin.X + 100 + 30, canvas_pos.Y + ItemHeight - 2));
bool inRectCopy = rectCopy.Contains(io.MousePos);
uint copyColor = inRectCopy ? 0xFF1080FF : 0xFF000000;
draw_list.AddText(rectCopy.Min, copyColor, "Copy");
var rectPaste = new ImRect(new Vector2(contentMin.X + 140, canvas_pos.Y + 2)
, new Vector2(contentMin.X + 140 + 30, canvas_pos.Y + ItemHeight - 2));
bool inRectPaste = rectPaste.Contains(io.MousePos);
uint pasteColor = inRectPaste ? 0xFF1080FF : 0xFF000000;
draw_list.AddText(rectPaste.Min, pasteColor, "Paste");
if (inRectCopy && io.MouseReleased[0])
{
sequence.Copy();
}
if (inRectPaste && io.MouseReleased[0])
{
sequence.Paste();
}
}
//
ImGui.EndChildFrame();
ImGui.PopStyleColor();
if (hasScrollBar)
{
ImGui.InvisibleButton("scrollBar", scrollBarSize);
Vector2 scrollBarMin = ImGui.GetItemRectMin();
Vector2 scrollBarMax = ImGui.GetItemRectMax();
// ratio = number of frames visible in control / number to total frames
float startFrameOffset = ((float)(firstFrameUsed - sequence.FrameMin) / (float)frameCount) * (canvas_size.X - legendWidth);
var scrollBarA = new Vector2(scrollBarMin.X + legendWidth, scrollBarMin.Y - 2);
var scrollBarB = new Vector2(scrollBarMin.X + canvas_size.X, scrollBarMax.Y - 1);
draw_list.AddRectFilled(scrollBarA, scrollBarB, 0xFF222222, 0);
var scrollBarRect = new ImRect(scrollBarA, scrollBarB);
bool inScrollBar = scrollBarRect.Contains(io.MousePos);
draw_list.AddRectFilled(scrollBarA, scrollBarB, 0xFF101010, 8);
var scrollBarC = new Vector2(scrollBarMin.X + legendWidth + startFrameOffset, scrollBarMin.Y);
var scrollBarD = new Vector2(scrollBarMin.X + legendWidth + barWidthInPixels + startFrameOffset, scrollBarMax.Y - 2);
draw_list.AddRectFilled(scrollBarC, scrollBarD, (inScrollBar || MovingScrollBar) ? 0xFF606060 : 0xFF505050, 6);
float handleRadius = (scrollBarMax.Y - scrollBarMin.Y) / 2;
var barHandleLeft = new ImRect(scrollBarC, new Vector2(scrollBarC.X + 14, scrollBarD.Y));
var barHandleRight = new ImRect(new Vector2(scrollBarD.X - 14, scrollBarC.Y), scrollBarD);
bool onLeft = barHandleLeft.Contains(io.MousePos);
bool onRight = barHandleRight.Contains(io.MousePos);
draw_list.AddRectFilled(barHandleLeft.Min, barHandleLeft.Max, (onLeft || sizingLBar) ? 0xFFAAAAAA : 0xFF666666, 6);
draw_list.AddRectFilled(barHandleRight.Min, barHandleRight.Max, (onRight || sizingRBar) ? 0xFFAAAAAA : 0xFF666666, 6);
var scrollBarThumb = new ImRect(scrollBarC, scrollBarD);
if (sizingRBar)
{
if (!io.MouseDown[0])
{
sizingRBar = false;
}
else
{
// Resize scrollbar from the right
float barNewWidth = Math.Max(barWidthInPixels + io.MouseDelta.X, MinBarWidth);
float barRatio = barNewWidth / barWidthInPixels;
framePixelWidthTarget = framePixelWidth = framePixelWidth / barRatio;
int newVisibleFrameCount = (int)((canvas_size.X - legendWidth) / framePixelWidthTarget);
int lastFrame = firstFrame + newVisibleFrameCount;
if (lastFrame > sequence.FrameMax)
{
framePixelWidthTarget = framePixelWidth = (canvas_size.X - legendWidth) / (float)(sequence.FrameMax - firstFrame);
}
}
}
else if (sizingLBar)
{
if (!io.MouseDown[0])
{
sizingLBar = false;
}
else
{
// Resize scrollbar from the left
if (Math.Abs(io.MouseDelta.X) > FLT_EPSILON)
{
float barNewWidth = Math.Max(barWidthInPixels - io.MouseDelta.X, MinBarWidth);
float barRatio = barNewWidth / barWidthInPixels;
float previousFramePixelWidthTarget = framePixelWidthTarget;
framePixelWidthTarget = framePixelWidth = framePixelWidth / barRatio;
int newVisibleFrameCount = (int)(visibleFrameCount / barRatio);
int newFirstFrame = firstFrame + newVisibleFrameCount - visibleFrameCount;
newFirstFrame = Math.Clamp(newFirstFrame, sequence.FrameMin, Math.Max(sequence.FrameMax - visibleFrameCount, sequence.FrameMin));
if (newFirstFrame == firstFrame)
{
framePixelWidth = framePixelWidthTarget = previousFramePixelWidthTarget;
}
else
{
firstFrame = newFirstFrame;
}
}
}
}
else
{
if (MovingScrollBar)
{
if (!io.MouseDown[0])
{
MovingScrollBar = false;
}
else
{
float framesPerPixelInBar = barWidthInPixels / (float)visibleFrameCount;
firstFrame = (int)((io.MousePos.X - panningViewSource.X) / framesPerPixelInBar) - panningViewFrame;
firstFrame = Math.Clamp(firstFrame, sequence.FrameMin, Math.Max(sequence.FrameMax - visibleFrameCount, sequence.FrameMin));
}
}
else
{
if (scrollBarThumb.Contains(io.MousePos) && ImGui.IsMouseClicked(0) && !MovingCurrentFrame && movingEntry == -1)
{
MovingScrollBar = true;
panningViewSource = io.MousePos;
panningViewFrame = firstFrame;
}
if (!sizingRBar && onRight && ImGui.IsMouseClicked(0))
{
sizingRBar = true;
}
if (!sizingLBar && onLeft && ImGui.IsMouseClicked(0))
{
sizingLBar = true;
}
}
}
}
}
ImGui.EndGroup();
if (regionRect.Contains(io.MousePos))
{
bool overCustomDraw = false;
foreach (var custom in customDraws)
{
if (custom.customRect.Contains(io.MousePos))
{
overCustomDraw = true;
}
}
if (overCustomDraw)
{
}
else
{
//frameOverCursor = *firstFrame + (int)(visibleFrameCount * ((io.MousePos.X - (float)legendWidth - canvas_pos.X) / (canvas_size.X - legendWidth)));
////frameOverCursor = max(min(*firstFrame - visibleFrameCount / 2, frameCount - visibleFrameCount), 0);
///**firstFrame -= frameOverCursor;
//*firstFrame *= framePixelWidthTarget / framePixelWidth;
//*firstFrame += frameOverCursor;*/
//if (io.MouseWheel < -FLT_EPSILON)
//{
// *firstFrame -= frameOverCursor;
// *firstFrame = int(*firstFrame * 1.1f);
// framePixelWidthTarget *= 0.9f;
// *firstFrame += frameOverCursor;
//}
//if (io.MouseWheel > FLT_EPSILON)
//{
// *firstFrame -= frameOverCursor;
// *firstFrame = int(*firstFrame * 0.9f);
// framePixelWidthTarget *= 1.1f;
// *firstFrame += frameOverCursor;
//}
}
}
if (expanded)
{
bool overExpanded = SequencerAddDelButton(draw_list, new Vector2(canvas_pos.X + 2, canvas_pos.Y + 2), !expanded);
if (overExpanded && io.MouseReleased[0])
{
expanded = !expanded;
}
}
if (deleteAnimationEntry >= 0)
{
sequence.RemoveAnimation(deleteAnimationEntry);
if ((selectedEntry == deleteAnimationEntry || selectedEntry >= sequence.ItemCount))
{
selectedEntry = -1;
}
}
if (duplicateAnimationEntry >= 0)
{
sequence.DuplicateAnimation(duplicateAnimationEntry);
}
if (insertAnimationEntry >= 0)
{
sequence.AddAnimation();
}
return(ret);
}