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Examples: added SDL3+Vulkan example - enable multi-viewports. (#8084, #8085)

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This commit is contained in:
ocornut 2024-10-24 18:18:42 +02:00
parent 942b64abfc
commit 646df39003
1 changed files with 29 additions and 9 deletions
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38
examples/example_sdl3_vulkan/main.cpp
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@ -433,11 +433,23 @@ int main(int, char**)
ImGuiIO& io = ImGui::GetIO(); (void)io;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
io.ConfigFlags |= ImGuiConfigFlags_DockingEnable; // Enable Docking
io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable; // Enable Multi-Viewport / Platform Windows
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoTaskBarIcons;
//io.ConfigFlags |= ImGuiConfigFlags_ViewportsNoMerge;
// Setup Dear ImGui style
ImGui::StyleColorsDark();
//ImGui::StyleColorsLight();
// When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
ImGuiStyle& style = ImGui::GetStyle();
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
style.WindowRounding = 0.0f;
style.Colors[ImGuiCol_WindowBg].w = 1.0f;
}
// Setup Platform/Renderer backends
ImGui_ImplSDL3_InitForVulkan(window);
ImGui_ImplVulkan_InitInfo init_info = {};
@ -557,17 +569,25 @@ int main(int, char**)
// Rendering
ImGui::Render();
ImDrawData* draw_data = ImGui::GetDrawData();
const bool is_minimized = (draw_data->DisplaySize.x <= 0.0f || draw_data->DisplaySize.y <= 0.0f);
if (!is_minimized)
ImDrawData* main_draw_data = ImGui::GetDrawData();
const bool main_is_minimized = (main_draw_data->DisplaySize.x <= 0.0f || main_draw_data->DisplaySize.y <= 0.0f);
wd->ClearValue.color.float32[0] = clear_color.x * clear_color.w;
wd->ClearValue.color.float32[1] = clear_color.y * clear_color.w;
wd->ClearValue.color.float32[2] = clear_color.z * clear_color.w;
wd->ClearValue.color.float32[3] = clear_color.w;
if (!main_is_minimized)
FrameRender(wd, main_draw_data);
// Update and Render additional Platform Windows
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
wd->ClearValue.color.float32[0] = clear_color.x * clear_color.w;
wd->ClearValue.color.float32[1] = clear_color.y * clear_color.w;
wd->ClearValue.color.float32[2] = clear_color.z * clear_color.w;
wd->ClearValue.color.float32[3] = clear_color.w;
FrameRender(wd, draw_data);
FramePresent(wd);
ImGui::UpdatePlatformWindows();
ImGui::RenderPlatformWindowsDefault();
}
// Present Main Platform Window
if (!main_is_minimized)
FramePresent(wd);
}
// Cleanup