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Demo: long text example uses ImGuiListClipper

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ocornut 2015-08-30 00:03:08 +01:00
parent 2d565d4bfb
commit aa35547f94
1 changed files with 10 additions and 10 deletions
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20
imgui_demo.cpp
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@ -2110,16 +2110,16 @@ static void ShowExampleAppLongText(bool* opened)
ImGui::TextUnformatted(log.begin(), log.end()); ImGui::TextUnformatted(log.begin(), log.end());
break; break;
case 1: case 1:
// Multiple calls to Text(), manually coarsely clipped - demonstrate how to use the CalcListClipping() helper. {
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0,0)); // Multiple calls to Text(), manually coarsely clipped - demonstrate how to use the ImGuiListClipper helper.
int display_start, display_end; ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0,0));
ImGui::CalcListClipping(lines, ImGui::GetTextLineHeight(), &display_start, &display_end); ImGuiListClipper clipper(lines, ImGui::GetTextLineHeight());
ImGui::SetCursorPosY(ImGui::GetCursorPosY() + (display_start) * ImGui::GetTextLineHeight()); for (int i = clipper.DisplayStart; i < clipper.DisplayEnd; i++)
for (int i = display_start; i < display_end; i++) ImGui::Text("%i The quick brown fox jumps over the lazy dog\n", i);
ImGui::Text("%i The quick brown fox jumps over the lazy dog\n", i); clipper.End();
ImGui::SetCursorPosY(ImGui::GetCursorPosY() + (lines - display_end) * ImGui::GetTextLineHeight()); ImGui::PopStyleVar();
ImGui::PopStyleVar(); break;
break; }
case 2: case 2:
// Multiple calls to Text(), not clipped (slow) // Multiple calls to Text(), not clipped (slow)
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0,0)); ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0,0));