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Examples: fixed custom rendering example canvas size.

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ocornut 2015-01-29 15:04:49 +01:00
parent 229ba6ea18
commit 4c4bbcb451
1 changed files with 1 additions and 1 deletions
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imgui.cpp
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@ -8174,7 +8174,7 @@ static void ShowExampleAppCustomRendering(bool* opened)
// However you can draw directly and poll mouse/keyboard by yourself. You can manipulate the cursor using GetCursorPos() and SetCursorPos().
// If you only use the ImDrawList API, you can notify the owner window of its extends by using SetCursorPos(max) followed by an empty Text("") statement.
ImVec2 canvas_pos = ImGui::GetCursorScreenPos(); // ImDrawList API uses screen coordinates!
ImVec2 canvas_size = ImVec2(ImMin(50.0f,ImGui::GetWindowContentRegionMax().x-ImGui::GetCursorPos().x), ImMin(50.0f,ImGui::GetWindowContentRegionMax().y-ImGui::GetCursorPos().y)); // Resize canvas what's available
ImVec2 canvas_size = ImVec2(ImMax(50.0f,ImGui::GetWindowContentRegionMax().x-ImGui::GetCursorPos().x), ImMax(50.0f,ImGui::GetWindowContentRegionMax().y-ImGui::GetCursorPos().y)); // Resize canvas what's available
draw_list->AddRect(canvas_pos, ImVec2(canvas_pos.x + canvas_size.x, canvas_pos.y + canvas_size.y), 0xFFFFFFFF);
bool adding_preview = false;
ImGui::InvisibleButton("canvas", canvas_size);