Demo: Tweaked Clipping example.

imgui_demo.cpp

@@ -1038,13 +1038,13 @@ void ImGui::ShowTestWindow(bool* opened)
             static ImVec2 size(100, 100), offset(50, 20);
             ImGui::TextWrapped("On a per-widget basis we are occasionally clipping text CPU-side if it won't fit in its frame. Otherwise we are doing coarser clipping + passing a scissor rectangle to the renderer. The system is designed to try minimizing both execution and CPU/GPU rendering cost.");
             ImGui::DragFloat2("size", (float*)&size, 0.5f, 0.0f, 200.0f, "%.0f");
-            ImGui::DragFloat2("offset", (float*)&offset, 0.5f, -200, 200.0f, "%.0f");
+            ImGui::TextWrapped("(Click and drag)");
             ImVec2 pos = ImGui::GetCursorScreenPos();
             ImVec4 clip_rect(pos.x, pos.y, pos.x+size.x, pos.y+size.y);
-            ImGui::GetWindowDrawList()->AddRectFilled(pos, ImVec2(pos.x+size.x,pos.y+size.y), ImColor(90,90,120,255));
-            ImGui::GetWindowDrawList()->AddText(ImGui::GetWindowFont(), ImGui::GetWindowFontSize()*2.0f, ImVec2(pos.x+offset.x,pos.y+offset.y), ImColor(255,255,255,255), "Line 1 hello\nLine 2 clip me!", NULL, 0.0f, &clip_rect);
             ImGui::InvisibleButton("##dummy", size);
             if (ImGui::IsItemActive() && ImGui::IsMouseDragging()) { offset.x += ImGui::GetIO().MouseDelta.x; offset.y += ImGui::GetIO().MouseDelta.y; }
+            ImGui::GetWindowDrawList()->AddRectFilled(pos, ImVec2(pos.x+size.x,pos.y+size.y), ImColor(90,90,120,255));
+            ImGui::GetWindowDrawList()->AddText(ImGui::GetWindowFont(), ImGui::GetWindowFontSize()*2.0f, ImVec2(pos.x+offset.x,pos.y+offset.y), ImColor(255,255,255,255), "Line 1 hello\nLine 2 clip me!", NULL, 0.0f, &clip_rect);
             ImGui::TreePop();
         }
     }