Update imgui: 1.91.9b -> 1.92.0 WIP (d896eab @ docking)

Adds dynamic font scaling and built-in MacOS dpi awareness

Author: snailspeed3

source/plate/vendor/imgui/imgui.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.91b
+// dear imgui, v1.92.0 WIP
 // (tables and columns code)
 
 /*
@@ -451,6 +451,7 @@ bool    ImGui::BeginTableEx(const char* name, ImGuiID id, int columns_count, ImG
         // But at this point we do NOT have a correct value for .Max.y (unless a height has been explicitly passed in). It will only be updated in EndTable().
         table->WorkRect = table->OuterRect = table->InnerRect = outer_rect;
         table->HasScrollbarYPrev = table->HasScrollbarYCurr = false;
+        table->InnerWindow->DC.TreeDepth++; // This is designed to always linking ImGuiTreeNodeFlags_DrawLines linking accross a table
     }
 
     // Push a standardized ID for both child-using and not-child-using tables
@@ -1510,6 +1511,7 @@ void    ImGui::EndTable()
     }
     else
     {
+        table->InnerWindow->DC.TreeDepth--;
         ItemSize(table->OuterRect.GetSize());
         ItemAdd(table->OuterRect, 0);
     }
@@ -1951,7 +1953,10 @@ void ImGui::TableEndRow(ImGuiTable* table)
     IM_ASSERT(table->IsInsideRow);
 
     if (table->CurrentColumn != -1)
+    {
         TableEndCell(table);
+        table->CurrentColumn = -1;
+    }
 
     // Logging
     if (g.LogEnabled)
@@ -2191,6 +2196,7 @@ void ImGui::TableBeginCell(ImGuiTable* table, int column_n)
         g.LastItemData.StatusFlags = 0;
     }
 
+    // Also see TablePushColumnChannel()
     if (table->Flags & ImGuiTableFlags_NoClip)
     {
         // FIXME: if we end up drawing all borders/bg in EndTable, could remove this and just assert that channel hasn't changed.
@@ -2464,10 +2470,38 @@ void ImGui::TablePopBackgroundChannel()
     ImGuiContext& g = *GImGui;
     ImGuiWindow* window = g.CurrentWindow;
     ImGuiTable* table = g.CurrentTable;
-    ImGuiTableColumn* column = &table->Columns[table->CurrentColumn];
 
     // Optimization: avoid PopClipRect() + SetCurrentChannel()
     SetWindowClipRectBeforeSetChannel(window, table->HostBackupInnerClipRect);
+    table->DrawSplitter->SetCurrentChannel(window->DrawList, table->Columns[table->CurrentColumn].DrawChannelCurrent);
+}
+
+// Also see TableBeginCell()
+void ImGui::TablePushColumnChannel(int column_n)
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+
+    // Optimization: avoid SetCurrentChannel() + PushClipRect()
+    if (table->Flags & ImGuiTableFlags_NoClip)
+        return;
+    ImGuiWindow* window = g.CurrentWindow;
+    const ImGuiTableColumn* column = &table->Columns[column_n];
+    SetWindowClipRectBeforeSetChannel(window, column->ClipRect);
+    table->DrawSplitter->SetCurrentChannel(window->DrawList, column->DrawChannelCurrent);
+}
+
+void ImGui::TablePopColumnChannel()
+{
+    ImGuiContext& g = *GImGui;
+    ImGuiTable* table = g.CurrentTable;
+
+    // Optimization: avoid PopClipRect() + SetCurrentChannel()
+    if ((table->Flags & ImGuiTableFlags_NoClip) || (table->CurrentColumn == -1)) // Calling TreePop() after TableNextRow() is supported.
+        return;
+    ImGuiWindow* window = g.CurrentWindow;
+    const ImGuiTableColumn* column = &table->Columns[table->CurrentColumn];
+    SetWindowClipRectBeforeSetChannel(window, column->ClipRect);
     table->DrawSplitter->SetCurrentChannel(window->DrawList, column->DrawChannelCurrent);
 }
 
@@ -3244,7 +3278,7 @@ void ImGui::TableHeader(const char* label)
     // Render clipped label. Clipping here ensure that in the majority of situations, all our header cells will
     // be merged into a single draw call.
     //window->DrawList->AddCircleFilled(ImVec2(ellipsis_max, label_pos.y), 40, IM_COL32_WHITE);
-    RenderTextEllipsis(window->DrawList, label_pos, ImVec2(ellipsis_max, label_pos.y + label_height + g.Style.FramePadding.y), ellipsis_max, ellipsis_max, label, label_end, &label_size);
+    RenderTextEllipsis(window->DrawList, label_pos, ImVec2(ellipsis_max, bb.Max.y), ellipsis_max, label, label_end, &label_size);
 
     const bool text_clipped = label_size.x > (ellipsis_max - label_pos.x);
     if (text_clipped && hovered && g.ActiveId == 0)
@@ -3341,7 +3375,7 @@ void ImGui::TableAngledHeadersRowEx(ImGuiID row_id, float angle, float max_label
     ButtonBehavior(row_r, row_id, NULL, NULL);
     KeepAliveID(row_id);
 
-    const float ascent_scaled = g.Font->Ascent * g.FontScale; // FIXME: Standardize those scaling factors better
+    const float ascent_scaled = g.FontBaked->Ascent * g.FontBakedScale; // FIXME: Standardize those scaling factors better
     const float line_off_for_ascent_x = (ImMax((g.FontSize - ascent_scaled) * 0.5f, 0.0f) / -sin_a) * (flip_label ? -1.0f : 1.0f);
     const ImVec2 padding = g.Style.CellPadding; // We will always use swapped component
     const ImVec2 align = g.Style.TableAngledHeadersTextAlign;
@@ -3396,7 +3430,7 @@ void ImGui::TableAngledHeadersRowEx(ImGuiID row_id, float angle, float max_label
                     ImRect clip_r(window->ClipRect.Min, window->ClipRect.Min + ImVec2(clip_width, clip_height));
                     int vtx_idx_begin = draw_list->_VtxCurrentIdx;
                     PushStyleColor(ImGuiCol_Text, request->TextColor);
-                    RenderTextEllipsis(draw_list, clip_r.Min, clip_r.Max, clip_r.Max.x, clip_r.Max.x, label_name, label_name_eol, &label_size);
+                    RenderTextEllipsis(draw_list, clip_r.Min, clip_r.Max, clip_r.Max.x, label_name, label_name_eol, &label_size);
                     PopStyleColor();
                     int vtx_idx_end = draw_list->_VtxCurrentIdx;