anulax
/
imgui-docking
1
0
Fork 0
Code Issues Pull Requests Packages project_board Releases Wiki Activity

Tables: clarify assumption that rendering of bg/borders in bg0/bg1 are cpu-clipped allowing frozen/unfrozen to share drawcmd + remove offset on outer borders of scrolling tables.

Browse Source
features/potocpav-newer-lines-2
ocornut ago%!(EXTRA string=5 years)
parent 30468829c2
commit 22ace4438c
2 changed files with 22 additions and 23 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 3
      imgui_internal.h
  2. 42
      imgui_tables.cpp

3
imgui_internal.h
Unescape View File

@ -2019,7 +2019,8 @@ struct ImGuiTable
ImRect WorkRect;
ImRect InnerClipRect;
ImRect BgClipRect; // We use this to cpu-clip cell background color fill
ImRect BgClipRectForDrawCmd;
ImRect Bg0ClipRectForDrawCmd; // Actual ImDrawCmd clip rect for BG0/1 channel. This tends to be == OuterWindow->ClipRect at BeginTable() because output in BG0/BG1 is cpu-clipped
ImRect Bg2ClipRectForDrawCmd; // Actual ImDrawCmd clip rect for BG2 channel. This tends to be a correct, tight-fit, because output to BG2 are done by widgets relying on regular ClipRect.
ImRect HostClipRect; // This is used to check if we can eventually merge our columns draw calls into the current draw call of the current window.
ImRect HostBackupWorkRect; // Backup of InnerWindow->WorkRect at the end of BeginTable()
ImRect HostBackupParentWorkRect; // Backup of InnerWindow->ParentWorkRect at the end of BeginTable()

42
imgui_tables.cpp
Unescape View File

@ -1601,7 +1601,7 @@ void ImGui::TableEndRow(ImGuiTable* table)
// In theory we could call SetWindowClipRectBeforeSetChannel() but since we know TableEndRow() is
// always followed by a change of clipping rectangle we perform the smallest overwrite possible here.
if ((table->Flags & ImGuiTableFlags_NoClip) == 0)
window->DrawList->_CmdHeader.ClipRect = table->BgClipRectForDrawCmd.ToVec4();
window->DrawList->_CmdHeader.ClipRect = table->Bg0ClipRectForDrawCmd.ToVec4();
table->DrawSplitter.SetCurrentChannel(window->DrawList, TABLE_DRAW_CHANNEL_BG0);
}
@ -1657,10 +1657,10 @@ void ImGui::TableEndRow(ImGuiTable* table)
// BgClipRect starts as table->InnerClipRect, reduce it now and make BgClipRectForDrawCmd == BgClipRect
float y0 = ImMax(table->RowPosY2 + 1, window->InnerClipRect.Min.y);
table->BgClipRect.Min.y = table->BgClipRectForDrawCmd.Min.y = ImMin(y0, window->InnerClipRect.Max.y);
table->BgClipRect.Max.y = table->BgClipRectForDrawCmd.Max.y = window->InnerClipRect.Max.y;
table->BgClipRect.Min.y = table->Bg2ClipRectForDrawCmd.Min.y = ImMin(y0, window->InnerClipRect.Max.y);
table->BgClipRect.Max.y = table->Bg2ClipRectForDrawCmd.Max.y = window->InnerClipRect.Max.y;
table->Bg2DrawChannelCurrent = table->Bg2DrawChannelUnfrozen;
IM_ASSERT(table->BgClipRectForDrawCmd.Min.y <= table->BgClipRectForDrawCmd.Max.y);
IM_ASSERT(table->Bg2ClipRectForDrawCmd.Min.y <= table->Bg2ClipRectForDrawCmd.Max.y);
float row_height = table->RowPosY2 - table->RowPosY1;
table->RowPosY2 = window->DC.CursorPos.y = table->WorkRect.Min.y + table->RowPosY2 - table->OuterRect.Min.y;
@ -1669,7 +1669,7 @@ void ImGui::TableEndRow(ImGuiTable* table)
{
ImGuiTableColumn* column = &table->Columns[column_n];
column->DrawChannelCurrent = column->DrawChannelUnfrozen;
column->ClipRect.Min.y = table->BgClipRectForDrawCmd.Min.y;
column->ClipRect.Min.y = table->Bg2ClipRectForDrawCmd.Min.y;
}
// Update cliprect ahead of TableBeginCell() so clipper can access to new ClipRect->Min.y
@ -2019,7 +2019,7 @@ void ImGui::TablePushBackgroundChannel()
// Optimization: avoid SetCurrentChannel() + PushClipRect()
table->HostBackupInnerClipRect = window->ClipRect;
SetWindowClipRectBeforeSetChannel(window, table->BgClipRectForDrawCmd);
SetWindowClipRectBeforeSetChannel(window, table->Bg2ClipRectForDrawCmd);
table->DrawSplitter.SetCurrentChannel(window->DrawList, table->Bg2DrawChannelCurrent);
}
@ -2046,7 +2046,7 @@ void ImGui::TablePopBackgroundChannel()
// - We allocate 1 or 2 background draw channels. This is because we know TablePushBackgroundChannel() is only used for
// horizontal spanning. If we allowed vertical spanning we'd need one background draw channel per merge group (1-4).
// Draw channel allocation (before merging):
// - NoClip --> 2+D+1 channels: bg0/1 + bg2 + foreground (same clip rect == 1 draw call) (FIXME-TABLE: could merge bg2 and foreground?)
// - NoClip --> 2+D+1 channels: bg0/1 + bg2 + foreground (same clip rect == always 1 draw call)
// - Clip --> 2+D+N channels
// - FreezeRows --> 2+D+N*2 (unless scrolling value is zero)
// - FreezeRows || FreezeColunns --> 3+D+N*2 (unless scrolling value is zero)
@ -2085,7 +2085,8 @@ void ImGui::TableSetupDrawChannels(ImGuiTable* table)
// All our cell highlight are manually clipped with BgClipRect. When unfreezing it will be made smaller to fit scrolling rect.
// (This technically isn't part of setting up draw channels, but is reasonably related to be done here)
table->BgClipRect = table->InnerClipRect;
table->BgClipRectForDrawCmd = table->HostClipRect;
table->Bg0ClipRectForDrawCmd = table->OuterWindow->ClipRect;
table->Bg2ClipRectForDrawCmd = table->HostClipRect;
IM_ASSERT(table->BgClipRect.Min.y <= table->BgClipRect.Max.y);
}
@ -2288,19 +2289,17 @@ void ImGui::TableMergeDrawChannels(ImGuiTable* table)
void ImGui::TableDrawBorders(ImGuiTable* table)
{
ImGuiWindow* inner_window = table->InnerWindow;
ImGuiWindow* outer_window = table->OuterWindow;
table->DrawSplitter.SetCurrentChannel(inner_window->DrawList, TABLE_DRAW_CHANNEL_BG0);
if (inner_window->Hidden || !table->HostClipRect.Overlaps(table->InnerClipRect))
return;
ImDrawList* inner_drawlist = inner_window->DrawList;
ImDrawList* outer_drawlist = outer_window->DrawList;
inner_drawlist->PushClipRect(table->Bg0ClipRectForDrawCmd.Min, table->Bg0ClipRectForDrawCmd.Max, false);
// Draw inner border and resizing feedback
const float border_size = TABLE_BORDER_SIZE;
const float draw_y1 = table->InnerRect.Min.y;
const float draw_y2_body = table->InnerRect.Max.y;
const float draw_y2_head = table->IsUsingHeaders ? ((table->FreezeRowsCount >= 1 ? table->OuterRect.Min.y : table->WorkRect.Min.y) + table->LastFirstRowHeight) : draw_y1;
if (table->Flags & ImGuiTableFlags_BordersInnerV)
{
for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
@ -2351,23 +2350,21 @@ void ImGui::TableDrawBorders(ImGuiTable* table)
// parent. In inner_window, it won't reach out over scrollbars. Another weird solution would be to display part
// of it in inner window, and the part that's over scrollbars in the outer window..)
// Either solution currently won't allow us to use a larger border size: the border would clipped.
ImRect outer_border = table->OuterRect;
const ImRect outer_border = table->OuterRect;
const ImU32 outer_col = table->BorderColorStrong;
if (inner_window != outer_window) // FIXME-TABLE
outer_border.Expand(1.0f);
if ((table->Flags & ImGuiTableFlags_BordersOuter) == ImGuiTableFlags_BordersOuter)
{
outer_drawlist->AddRect(outer_border.Min, outer_border.Max, outer_col, 0.0f, ~0, border_size);
inner_drawlist->AddRect(outer_border.Min, outer_border.Max, outer_col, 0.0f, ~0, border_size);
}
else if (table->Flags & ImGuiTableFlags_BordersOuterV)
{
outer_drawlist->AddLine(outer_border.Min, ImVec2(outer_border.Min.x, outer_border.Max.y), outer_col, border_size);
outer_drawlist->AddLine(ImVec2(outer_border.Max.x, outer_border.Min.y), outer_border.Max, outer_col, border_size);
inner_drawlist->AddLine(outer_border.Min, ImVec2(outer_border.Min.x, outer_border.Max.y), outer_col, border_size);
inner_drawlist->AddLine(ImVec2(outer_border.Max.x, outer_border.Min.y), outer_border.Max, outer_col, border_size);
}
else if (table->Flags & ImGuiTableFlags_BordersOuterH)
{
outer_drawlist->AddLine(outer_border.Min, ImVec2(outer_border.Max.x, outer_border.Min.y), outer_col, border_size);
outer_drawlist->AddLine(ImVec2(outer_border.Min.x, outer_border.Max.y), outer_border.Max, outer_col, border_size);
inner_drawlist->AddLine(outer_border.Min, ImVec2(outer_border.Max.x, outer_border.Min.y), outer_col, border_size);
inner_drawlist->AddLine(ImVec2(outer_border.Min.x, outer_border.Max.y), outer_border.Max, outer_col, border_size);
}
}
if ((table->Flags & ImGuiTableFlags_BordersInnerH) && table->RowPosY2 < table->OuterRect.Max.y)
@ -2377,6 +2374,8 @@ void ImGui::TableDrawBorders(ImGuiTable* table)
if (border_y >= table->BgClipRect.Min.y && border_y < table->BgClipRect.Max.y)
inner_drawlist->AddLine(ImVec2(table->BorderX1, border_y), ImVec2(table->BorderX2, border_y), table->BorderColorLight, border_size);
}
inner_drawlist->PopClipRect();
}
//-------------------------------------------------------------------------
@ -2638,7 +2637,6 @@ void ImGui::TableHeadersRow()
// Emit a column header (text + optional sort order)
// We cpu-clip text here so that all columns headers can be merged into a same draw call.
// Note that because of how we cpu-clip and display sorting indicators, you _cannot_ use SameLine() after a TableHeader()
// FIXME-TABLE: Style confusion between CellPadding.y and FramePadding.y
void ImGui::TableHeader(const char* label)
{
ImGuiContext& g = *GImGui;
@ -2660,7 +2658,7 @@ void ImGui::TableHeader(const char* label)
ImVec2 label_pos = window->DC.CursorPos;
// If we already got a row height, there's use that.
// FIXME-TABLE-PADDING: Problem if the correct outer-padding CellBgRect strays off our ClipRect
// FIXME-TABLE: Padding problem if the correct outer-padding CellBgRect strays off our ClipRect?
ImRect cell_r = TableGetCellBgRect(table, column_n);
float label_height = ImMax(label_size.y, table->RowMinHeight - table->CellPaddingY * 2.0f);
@ -2671,7 +2669,7 @@ void ImGui::TableHeader(const char* label)
const float ARROW_SCALE = 0.65f;
if ((table->Flags & ImGuiTableFlags_Sortable) && !(column->Flags & ImGuiTableColumnFlags_NoSort))
{
w_arrow = ImFloor(g.FontSize * ARROW_SCALE + g.Style.FramePadding.x);// table->CellPadding.x);
w_arrow = ImFloor(g.FontSize * ARROW_SCALE + g.Style.FramePadding.x);
if (column->SortOrder > 0)
{
ImFormatString(sort_order_suf, IM_ARRAYSIZE(sort_order_suf), "%d", column->SortOrder + 1);

Write Preview
Loading…
Cancel
Save