修改内容

仅对TyomaVader版本的ImGui弹窗源码添加设置图标字体功能, 使弹窗标题及内容可以用其他字体显示
(只改了win32里的文件, unix里面的文件和win32原版内容一样懒得再传一遍了)

初始化图标字体:

#include "ImGui/fa_solid_900.h"
#include "ImGui/ImGuiNotify.hpp"

io.Fonts->AddFontDefault();
float baseFontSize = 16.0f; // Default font size
float iconFontSize = baseFontSize * 2.0f / 3.0f; // FontAwesome fonts need to have their sizes reduced
static const ImWchar iconsRanges[] = { ICON_MIN_FA, ICON_MAX_16_FA, 0 };
ImFontConfig iconsConfig;
iconsConfig.MergeMode = true;
iconsConfig.PixelSnapH = true;
iconsConfig.GlyphMinAdvanceX = iconFontSize;
ImFont* font_ImGuiNotify_Icon = io.Fonts->AddFontFromMemoryTTF((void*)fa_solid_900, sizeof(fa_solid_900), iconFontSize, &iconsConfig, iconsRanges);
ImGui::SetNotificationIconFont(font_ImGuiNotify_Icon);

ImGuiNotify

Is a header-only wrapper made to create notifications with Dear ImGui. Fork of imgui-notify by patrickcjk.

Important

Requires Font Awesome 6 for icons (Setup example).

Important

Requires C++17 or later.

Latest changes (v0.0.1 & v0.0.2)

Added

• CMake support, see CMakeLists.txt for details
• Dismiss button for notifications (optional)
• Optional button in the notification that executes a user-defined function
• GitHub Actions for Linux and Windows builds
• Documentation examples
• Linux support
• Documentation

Fixed

• Notifications now render above all other windows
• Notifications now render in the correct position when the main window is moved
• Compilation warnings about incorrect usage of ImGui::Text()
• Documentation fixes

Changed

• Code readability improved
• Switched to Font Awesome 6 icons
• Visual changes to the notifications (can be customized in the main.cpp file)
• Default Dear ImGui theme changed to Embrace The Darkness by janekb04
• Switched from classic enums to scoped enums
• Upgraded Dear ImGui version used in example to v1.89.9 WIP

FULL CHANGELOG

Usage

Include

#include "ImGuiNotify.hpp"
#include "IconsFontAwesome6.h"

Initialisation (after impl call: ImGui_ImplDX12_Init, ImGui_ImplVulkan_Init, etc.)

io.Fonts->AddFontDefault();

float baseFontSize = 16.0f; // Default font size
float iconFontSize = baseFontSize * 2.0f / 3.0f; // FontAwesome fonts need to have their sizes reduced by 2.0f/3.0f in order to align correctly

// Check if FONT_ICON_FILE_NAME_FAS is a valid path
std::ifstream fontAwesomeFile(FONT_ICON_FILE_NAME_FAS);

if (!fontAwesomeFile.good())
{
    // If it's not good, then we can't find the font and should abort
    std::cerr << "Could not find the FontAwesome font file." << std::endl;
    abort();
}

static const ImWchar iconsRanges[] = {ICON_MIN_FA, ICON_MAX_16_FA, 0};
ImFontConfig iconsConfig;
iconsConfig.MergeMode = true;
iconsConfig.PixelSnapH = true;
iconsConfig.GlyphMinAdvanceX = iconFontSize;
io.Fonts->AddFontFromFileTTF(FONT_ICON_FILE_NAME_FAS, iconFontSize, &iconsConfig, iconsRanges);

Warning

FONT_ICON_FILE_NAME_FAS may require a different path depending on your project structure, see IconsFontAwesome6.h for details. Incorrect path will result in a runtime error.

Create notifications

• Success

ImGui::InsertNotification({ImGuiToastType::Success, 3000, "That is a success! %s", "(Format here)"});

• Warning

ImGui::InsertNotification({ImGuiToastType::Warning, 3000, "Hello World! This is a warning! %d", 0x1337});

• Error

ImGui::InsertNotification({ImGuiToastType::Error, 3000, "Hello World! This is an error! 0x%X", 0xDEADBEEF});

• Info

ImGui::InsertNotification({ImGuiToastType::Info, 3000, "Hello World! This is an info!"});

• Long info

ImGui::InsertNotification({ImGuiToastType::Info, 3000, "Hi, I'm a long notification. I'm here to show you that you can write a lot of text in me. I'm also here to show you that I can wrap text, so you don't have to worry about that."});

• Error with button

ImGui::InsertNotification({ImGuiToastType::Error, 3000, "Click me!", [](){ImGui::InsertNotification({ImGuiToastType::Success, 3000, "Thanks for clicking!"});}, "Notification content"});

• Now using a custom title...

ImGuiToast toast(ImGuiToastType::Success, 3000); // <-- content can also be passed here as above
toast.setTitle("This is a %s title", "wonderful");
toast.setContent("Lorem ipsum dolor sit amet");
ImGui::InsertNotification(toast);

Rendering

// Notifications style setup
ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 0.f); // Disable round borders
ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.f); // Disable borders

// Notifications color setup
ImGui::PushStyleColor(ImGuiCol_WindowBg, ImVec4(0.10f, 0.10f, 0.10f, 1.00f)); // Background color
ImGui::PushStyleColor(ImGuiCol_Button, ImVec4(0.F, 0.F, 0.F, 0.F)); // Button Background color


// Main rendering function
ImGui::RenderNotifications();


//——————————————————————————————— WARNING ———————————————————————————————
// Argument MUST match the amount of ImGui::PushStyleVar() calls 
ImGui::PopStyleVar(2);
// Argument MUST match the amount of ImGui::PushStyleColor() calls 
ImGui::PopStyleColor(2);

Showcase

Note

The following preview uses an Embrace The Darkness theme by @janekb04. It can be found in the main.cpp.

Untitled.mp4

License