SquareGameLiberationFront/F.E.I.S
1
0
Fork 0
mirror of https://gitlab.com/square-game-liberation-front/F.E.I.S.git synced 2024-11-12 02:00:53 +01:00
Code Releases Wiki Activity
8feb8398c9
F.E.I.S/include/imgui/imgui-SFML.cpp
Stepland 6fd7c23027 Update dear imgui and imgui-SFML
2022-01-05 23:18:13 +01:00

1109 lines
41 KiB
C++
Raw Blame History

#include "imgui-SFML.h"
#include <imgui.h>
#include <SFML/Config.hpp>
#include <SFML/Graphics/Color.hpp>
#include <SFML/Graphics/RenderTarget.hpp>
#include <SFML/Graphics/RenderTexture.hpp>
#include <SFML/Graphics/RenderWindow.hpp>
#include <SFML/Graphics/Sprite.hpp>
#include <SFML/Graphics/Texture.hpp>
#include <SFML/OpenGL.hpp>
#include <SFML/Window/Clipboard.hpp>
#include <SFML/Window/Cursor.hpp>
#include <SFML/Window/Event.hpp>
#include <SFML/Window/Touch.hpp>
#include <SFML/Window/Window.hpp>
#include <cassert>
#include <cmath> // abs
#include <cstddef> // offsetof, NULL, size_t
#include <cstring> // memcpy
#include <vector>
#ifdef ANDROID
#ifdef USE_JNI
#include <SFML/System/NativeActivity.hpp>
#include <android/native_activity.h>
#include <jni.h>
int openKeyboardIME() {
ANativeActivity* activity = sf::getNativeActivity();
JavaVM* vm = activity->vm;
JNIEnv* env = activity->env;
JavaVMAttachArgs attachargs;
attachargs.version = JNI_VERSION_1_6;
attachargs.name = "NativeThread";
attachargs.group = NULL;
jint res = vm->AttachCurrentThread(&env, &attachargs);
if (res == JNI_ERR) return EXIT_FAILURE;
jclass natact = env->FindClass("android/app/NativeActivity");
jclass context = env->FindClass("android/content/Context");
jfieldID fid = env->GetStaticFieldID(context, "INPUT_METHOD_SERVICE", "Ljava/lang/String;");
jobject svcstr = env->GetStaticObjectField(context, fid);
jmethodID getss =
env->GetMethodID(natact, "getSystemService", "(Ljava/lang/String;)Ljava/lang/Object;");
jobject imm_obj = env->CallObjectMethod(activity->clazz, getss, svcstr);
jclass imm_cls = env->GetObjectClass(imm_obj);
jmethodID toggleSoftInput = env->GetMethodID(imm_cls, "toggleSoftInput", "(II)V");
env->CallVoidMethod(imm_obj, toggleSoftInput, 2, 0);
env->DeleteLocalRef(imm_obj);
env->DeleteLocalRef(imm_cls);
env->DeleteLocalRef(svcstr);
env->DeleteLocalRef(context);
env->DeleteLocalRef(natact);
vm->DetachCurrentThread();
return EXIT_SUCCESS;
}
int closeKeyboardIME() {
ANativeActivity* activity = sf::getNativeActivity();
JavaVM* vm = activity->vm;
JNIEnv* env = activity->env;
JavaVMAttachArgs attachargs;
attachargs.version = JNI_VERSION_1_6;
attachargs.name = "NativeThread";
attachargs.group = NULL;
jint res = vm->AttachCurrentThread(&env, &attachargs);
if (res == JNI_ERR) return EXIT_FAILURE;
jclass natact = env->FindClass("android/app/NativeActivity");
jclass context = env->FindClass("android/content/Context");
jfieldID fid = env->GetStaticFieldID(context, "INPUT_METHOD_SERVICE", "Ljava/lang/String;");
jobject svcstr = env->GetStaticObjectField(context, fid);
jmethodID getss =
env->GetMethodID(natact, "getSystemService", "(Ljava/lang/String;)Ljava/lang/Object;");
jobject imm_obj = env->CallObjectMethod(activity->clazz, getss, svcstr);
jclass imm_cls = env->GetObjectClass(imm_obj);
jmethodID toggleSoftInput = env->GetMethodID(imm_cls, "toggleSoftInput", "(II)V");
env->CallVoidMethod(imm_obj, toggleSoftInput, 1, 0);
env->DeleteLocalRef(imm_obj);
env->DeleteLocalRef(imm_cls);
env->DeleteLocalRef(svcstr);
env->DeleteLocalRef(context);
env->DeleteLocalRef(natact);
vm->DetachCurrentThread();
return EXIT_SUCCESS;
}
#endif
#endif
#if __cplusplus >= 201103L // C++11 and above
static_assert(sizeof(GLuint) <= sizeof(ImTextureID),
"ImTextureID is not large enough to fit GLuint.");
#endif
namespace {
// various helper functions
ImColor toImColor(sf::Color c);
ImVec2 getTopLeftAbsolute(const sf::FloatRect& rect);
ImVec2 getDownRightAbsolute(const sf::FloatRect& rect);
ImTextureID convertGLTextureHandleToImTextureID(GLuint glTextureHandle);
GLuint convertImTextureIDToGLTextureHandle(ImTextureID textureID);
void RenderDrawLists(ImDrawData* draw_data); // rendering callback function prototype
// Default mapping is XInput gamepad mapping
void initDefaultJoystickMapping();
// Returns first id of connected joystick
unsigned int getConnectedJoystickId();
void updateJoystickActionState(ImGuiIO& io, ImGuiNavInput_ action);
void updateJoystickDPadState(ImGuiIO& io);
void updateJoystickLStickState(ImGuiIO& io);
// clipboard functions
void setClipboardText(void* userData, const char* text);
const char* getClipboardText(void* userData);
std::string s_clipboardText;
// mouse cursors
void loadMouseCursor(ImGuiMouseCursor imguiCursorType, sf::Cursor::Type sfmlCursorType);
void updateMouseCursor(sf::Window& window);
// data
const unsigned int NULL_JOYSTICK_ID = sf::Joystick::Count;
const unsigned int NULL_JOYSTICK_BUTTON = sf::Joystick::ButtonCount;
struct StickInfo {
sf::Joystick::Axis xAxis;
sf::Joystick::Axis yAxis;
bool xInverted;
bool yInverted;
float threshold;
StickInfo() {
xAxis = sf::Joystick::X;
yAxis = sf::Joystick::Y;
xInverted = false;
yInverted = false;
threshold = 0.5;
}
};
struct WindowContext {
const sf::Window* window;
ImGuiContext* imContext;
sf::Texture* fontTexture; // owning pointer to internal font atlas which is used if user
// doesn't set a custom sf::Texture.
bool windowHasFocus;
bool mouseMoved;
bool mousePressed[3];
bool touchDown[3];
sf::Vector2i touchPos;
unsigned int joystickId;
unsigned int joystickMapping[ImGuiNavInput_COUNT];
StickInfo dPadInfo;
StickInfo lStickInfo;
sf::Cursor* mouseCursors[ImGuiMouseCursor_COUNT];
bool mouseCursorLoaded[ImGuiMouseCursor_COUNT];
#ifdef ANDROID
#ifdef USE_JNI
bool wantTextInput;
#endif
#endif
WindowContext(const sf::Window* w) {
window = w;
imContext = ImGui::CreateContext();
fontTexture = new sf::Texture;
windowHasFocus = window->hasFocus();
mouseMoved = false;
for (int i = 0; i < 3; ++i) {
mousePressed[i] = false;
touchDown[i] = false;
}
joystickId = getConnectedJoystickId();
for (int i = 0; i < ImGuiNavInput_COUNT; ++i) {
joystickMapping[i] = NULL_JOYSTICK_BUTTON;
}
for (int i = 0; i < ImGuiMouseCursor_COUNT; ++i) {
mouseCursors[i] = NULL;
mouseCursorLoaded[i] = false;
}
#ifdef ANDROID
#ifdef USE_JNI
wantTextInput = false;
#endif
#endif
}
~WindowContext() {
delete fontTexture;
for (int i = 0; i < ImGuiMouseCursor_COUNT; ++i) {
if (mouseCursorLoaded[i]) {
delete mouseCursors[i];
}
}
ImGui::DestroyContext(imContext);
}
};
std::vector<WindowContext*> s_windowContexts;
WindowContext* s_currWindowCtx = NULL;
} // end of anonymous namespace
namespace ImGui {
namespace SFML {
void Init(sf::RenderWindow& window, bool loadDefaultFont) {
Init(window, window, loadDefaultFont);
}
void Init(sf::Window& window, sf::RenderTarget& target, bool loadDefaultFont) {
Init(window, static_cast<sf::Vector2f>(target.getSize()), loadDefaultFont);
}
void Init(sf::Window& window, const sf::Vector2f& displaySize, bool loadDefaultFont) {
#if __cplusplus < 201103L // runtime assert when using earlier than C++11 as no
// static_assert support
assert(sizeof(GLuint) <= sizeof(ImTextureID)); // ImTextureID is not large enough to fit
// GLuint.
#endif
s_windowContexts.push_back(new WindowContext(&window));
s_currWindowCtx = s_windowContexts.back();
ImGui::SetCurrentContext(s_currWindowCtx->imContext);
ImGuiIO& io = ImGui::GetIO();
// tell ImGui which features we support
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;
io.BackendPlatformName = "imgui_impl_sfml";
// init keyboard mapping
io.KeyMap[ImGuiKey_Tab] = sf::Keyboard::Tab;
io.KeyMap[ImGuiKey_LeftArrow] = sf::Keyboard::Left;
io.KeyMap[ImGuiKey_RightArrow] = sf::Keyboard::Right;
io.KeyMap[ImGuiKey_UpArrow] = sf::Keyboard::Up;
io.KeyMap[ImGuiKey_DownArrow] = sf::Keyboard::Down;
io.KeyMap[ImGuiKey_PageUp] = sf::Keyboard::PageUp;
io.KeyMap[ImGuiKey_PageDown] = sf::Keyboard::PageDown;
io.KeyMap[ImGuiKey_Home] = sf::Keyboard::Home;
io.KeyMap[ImGuiKey_End] = sf::Keyboard::End;
io.KeyMap[ImGuiKey_Insert] = sf::Keyboard::Insert;
io.KeyMap[ImGuiKey_Delete] = sf::Keyboard::Delete;
io.KeyMap[ImGuiKey_Backspace] = sf::Keyboard::BackSpace;
io.KeyMap[ImGuiKey_Space] = sf::Keyboard::Space;
io.KeyMap[ImGuiKey_Enter] = sf::Keyboard::Return;
io.KeyMap[ImGuiKey_Escape] = sf::Keyboard::Escape;
io.KeyMap[ImGuiKey_A] = sf::Keyboard::A;
io.KeyMap[ImGuiKey_C] = sf::Keyboard::C;
io.KeyMap[ImGuiKey_V] = sf::Keyboard::V;
io.KeyMap[ImGuiKey_X] = sf::Keyboard::X;
io.KeyMap[ImGuiKey_Y] = sf::Keyboard::Y;
io.KeyMap[ImGuiKey_Z] = sf::Keyboard::Z;
s_currWindowCtx->joystickId = getConnectedJoystickId();
initDefaultJoystickMapping();
// init rendering
io.DisplaySize = ImVec2(displaySize.x, displaySize.y);
// clipboard
io.SetClipboardTextFn = setClipboardText;
io.GetClipboardTextFn = getClipboardText;
// load mouse cursors
loadMouseCursor(ImGuiMouseCursor_Arrow, sf::Cursor::Arrow);
loadMouseCursor(ImGuiMouseCursor_TextInput, sf::Cursor::Text);
loadMouseCursor(ImGuiMouseCursor_ResizeAll, sf::Cursor::SizeAll);
loadMouseCursor(ImGuiMouseCursor_ResizeNS, sf::Cursor::SizeVertical);
loadMouseCursor(ImGuiMouseCursor_ResizeEW, sf::Cursor::SizeHorizontal);
loadMouseCursor(ImGuiMouseCursor_ResizeNESW, sf::Cursor::SizeBottomLeftTopRight);
loadMouseCursor(ImGuiMouseCursor_ResizeNWSE, sf::Cursor::SizeTopLeftBottomRight);
loadMouseCursor(ImGuiMouseCursor_Hand, sf::Cursor::Hand);
if (loadDefaultFont) {
// this will load default font automatically
// No need to call AddDefaultFont
UpdateFontTexture();
}
}
void SetCurrentWindow(const sf::Window& window) {
for (std::size_t i = 0; i < s_windowContexts.size(); ++i) {
if (s_windowContexts[i]->window->getSystemHandle() == window.getSystemHandle()) {
s_currWindowCtx = s_windowContexts[i];
ImGui::SetCurrentContext(s_currWindowCtx->imContext);
return;
}
}
assert(false && "Failed to find the window. Forgot to call ImGui::SFML::Init for the window?");
}
void ProcessEvent(const sf::Window& window, const sf::Event& event) {
SetCurrentWindow(window);
ProcessEvent(event);
}
void ProcessEvent(const sf::Event& event) {
assert(s_currWindowCtx && "No current window is set - forgot to call ImGui::SFML::Init?");
if (s_currWindowCtx->windowHasFocus) {
ImGuiIO& io = ImGui::GetIO();
switch (event.type) {
case sf::Event::MouseMoved:
s_currWindowCtx->mouseMoved = true;
break;
case sf::Event::MouseButtonPressed: // fall-through
case sf::Event::MouseButtonReleased: {
int button = event.mouseButton.button;
if (event.type == sf::Event::MouseButtonPressed && button >= 0 && button < 3) {
s_currWindowCtx->mousePressed[event.mouseButton.button] = true;
}
} break;
case sf::Event::TouchBegan: // fall-through
case sf::Event::TouchEnded: {
s_currWindowCtx->mouseMoved = false;
int button = event.touch.finger;
if (event.type == sf::Event::TouchBegan && button >= 0 && button < 3) {
s_currWindowCtx->touchDown[event.touch.finger] = true;
}
} break;
case sf::Event::MouseWheelScrolled:
if (event.mouseWheelScroll.wheel == sf::Mouse::VerticalWheel ||
(event.mouseWheelScroll.wheel == sf::Mouse::HorizontalWheel && io.KeyShift)) {
io.MouseWheel += event.mouseWheelScroll.delta;
} else if (event.mouseWheelScroll.wheel == sf::Mouse::HorizontalWheel) {
io.MouseWheelH += event.mouseWheelScroll.delta;
}
break;
case sf::Event::KeyPressed: // fall-through
case sf::Event::KeyReleased: {
int key = event.key.code;
if (key >= 0 && key < IM_ARRAYSIZE(io.KeysDown)) {
io.KeysDown[key] = (event.type == sf::Event::KeyPressed);
}
io.KeyCtrl = event.key.control;
io.KeyAlt = event.key.alt;
io.KeyShift = event.key.shift;
io.KeySuper = event.key.system;
} break;
case sf::Event::TextEntered:
// Don't handle the event for unprintable characters
if (event.text.unicode < ' ' || event.text.unicode == 127) {
break;
}
io.AddInputCharacter(event.text.unicode);
break;
case sf::Event::JoystickConnected:
if (s_currWindowCtx->joystickId == NULL_JOYSTICK_ID) {
s_currWindowCtx->joystickId = event.joystickConnect.joystickId;
}
break;
case sf::Event::JoystickDisconnected:
if (s_currWindowCtx->joystickId == event.joystickConnect.joystickId) { // used gamepad
// was
// disconnected
s_currWindowCtx->joystickId = getConnectedJoystickId();
}
break;
default:
break;
}
}
switch (event.type) {
case sf::Event::LostFocus: {
// reset all input - SFML doesn't send KeyReleased
// event when window goes out of focus
ImGuiIO& io = ImGui::GetIO();
for (int i = 0; i < IM_ARRAYSIZE(io.KeysDown); ++i) {
io.KeysDown[i] = false;
}
io.KeyCtrl = false;
io.KeyAlt = false;
io.KeyShift = false;
io.KeySuper = false;
s_currWindowCtx->windowHasFocus = false;
} break;
case sf::Event::GainedFocus:
s_currWindowCtx->windowHasFocus = true;
break;
default:
break;
}
}
void Update(sf::RenderWindow& window, sf::Time dt) {
Update(window, window, dt);
}
void Update(sf::Window& window, sf::RenderTarget& target, sf::Time dt) {
SetCurrentWindow(window);
// Update OS/hardware mouse cursor if imgui isn't drawing a software cursor
updateMouseCursor(window);
assert(s_currWindowCtx);
if (!s_currWindowCtx->mouseMoved) {
if (sf::Touch::isDown(0)) s_currWindowCtx->touchPos = sf::Touch::getPosition(0, window);
Update(s_currWindowCtx->touchPos, static_cast<sf::Vector2f>(target.getSize()), dt);
} else {
Update(sf::Mouse::getPosition(window), static_cast<sf::Vector2f>(target.getSize()), dt);
}
if (ImGui::GetIO().MouseDrawCursor) {
// Hide OS mouse cursor if imgui is drawing it
window.setMouseCursorVisible(false);
}
}
void Update(const sf::Vector2i& mousePos, const sf::Vector2f& displaySize, sf::Time dt) {
assert(s_currWindowCtx && "No current window is set - forgot to call ImGui::SFML::Init?");
ImGuiIO& io = ImGui::GetIO();
io.DisplaySize = ImVec2(displaySize.x, displaySize.y);
io.DeltaTime = dt.asSeconds();
if (s_currWindowCtx->windowHasFocus) {
if (io.WantSetMousePos) {
sf::Vector2i newMousePos(static_cast<int>(io.MousePos.x),
static_cast<int>(io.MousePos.y));
sf::Mouse::setPosition(newMousePos);
} else {
io.MousePos = ImVec2(static_cast<float>(mousePos.x), static_cast<float>(mousePos.y));
}
for (unsigned int i = 0; i < 3; i++) {
io.MouseDown[i] = s_currWindowCtx->touchDown[i] || sf::Touch::isDown(i) ||
s_currWindowCtx->mousePressed[i] ||
sf::Mouse::isButtonPressed((sf::Mouse::Button)i);
s_currWindowCtx->mousePressed[i] = false;
s_currWindowCtx->touchDown[i] = false;
}
}
#ifdef ANDROID
#ifdef USE_JNI
if (io.WantTextInput && !s_currWindowCtx->wantTextInput) {
openKeyboardIME();
s_currWindowCtx->wantTextInput = true;
}
if (!io.WantTextInput && s_currWindowCtx->wantTextInput) {
closeKeyboardIME();
s_currWindowCtx->wantTextInput = false;
}
#endif
#endif
assert(io.Fonts->Fonts.Size > 0); // You forgot to create and set up font
// atlas (see createFontTexture)
// gamepad navigation
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) &&
s_currWindowCtx->joystickId != NULL_JOYSTICK_ID) {
updateJoystickActionState(io, ImGuiNavInput_Activate);
updateJoystickActionState(io, ImGuiNavInput_Cancel);
updateJoystickActionState(io, ImGuiNavInput_Input);
updateJoystickActionState(io, ImGuiNavInput_Menu);
updateJoystickActionState(io, ImGuiNavInput_FocusPrev);
updateJoystickActionState(io, ImGuiNavInput_FocusNext);
updateJoystickActionState(io, ImGuiNavInput_TweakSlow);
updateJoystickActionState(io, ImGuiNavInput_TweakFast);
updateJoystickDPadState(io);
updateJoystickLStickState(io);
}
ImGui::NewFrame();
}
void Render(sf::RenderWindow& window) {
SetCurrentWindow(window);
Render(static_cast<sf::RenderTarget&>(window));
}
void Render(sf::RenderTarget& target) {
target.resetGLStates();
target.pushGLStates();
ImGui::Render();
RenderDrawLists(ImGui::GetDrawData());
target.popGLStates();
}
void Render() {
ImGui::Render();
RenderDrawLists(ImGui::GetDrawData());
}
void Shutdown(const sf::Window& window) {
// set current context to some window for convenience if needed
if (window.getSystemHandle() == s_currWindowCtx->window->getSystemHandle()) {
if (s_windowContexts.size() > 1) {
// set to some other window
for (std::size_t i = 0; i < s_windowContexts.size(); ++i) {
if (s_windowContexts[i]->window->getSystemHandle() != window.getSystemHandle()) {
s_currWindowCtx = s_windowContexts[i];
ImGui::SetCurrentContext(s_currWindowCtx->imContext);
break;
}
}
} else {
// no alternatives...
s_currWindowCtx = NULL;
}
}
// remove window's context
std::size_t ctxIdxToErase = 0;
bool ctxFound = true;
for (std::size_t i = 0; i < s_windowContexts.size(); ++i) {
if (s_windowContexts[i]->window->getSystemHandle() == window.getSystemHandle()) {
delete s_windowContexts[i];
ctxIdxToErase = i;
ctxFound = true;
break;
}
}
assert(ctxFound && "Window wasn't inited properly: forgot to call ImGui::SFML::Init(window)?");
s_windowContexts.erase(s_windowContexts.begin() + ctxIdxToErase);
}
void Shutdown() {
s_currWindowCtx = NULL;
ImGui::SetCurrentContext(NULL);
for (std::size_t i = 0; i < s_windowContexts.size(); ++i) {
delete s_windowContexts[i];
}
s_windowContexts.clear();
}
void UpdateFontTexture() {
assert(s_currWindowCtx);
ImGuiIO& io = ImGui::GetIO();
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
sf::Texture& texture = *s_currWindowCtx->fontTexture;
texture.create(width, height);
texture.update(pixels);
ImTextureID texID = convertGLTextureHandleToImTextureID(texture.getNativeHandle());
io.Fonts->SetTexID(texID);
}
sf::Texture& GetFontTexture() {
assert(s_currWindowCtx);
return *s_currWindowCtx->fontTexture;
}
void SetActiveJoystickId(unsigned int joystickId) {
assert(s_currWindowCtx);
assert(joystickId < sf::Joystick::Count);
s_currWindowCtx->joystickId = joystickId;
}
void SetJoytickDPadThreshold(float threshold) {
assert(s_currWindowCtx);
assert(threshold >= 0.f && threshold <= 100.f);
s_currWindowCtx->dPadInfo.threshold = threshold;
}
void SetJoytickLStickThreshold(float threshold) {
assert(s_currWindowCtx);
assert(threshold >= 0.f && threshold <= 100.f);
s_currWindowCtx->lStickInfo.threshold = threshold;
}
void SetJoystickMapping(int action, unsigned int joystickButton) {
assert(s_currWindowCtx);
assert(action < ImGuiNavInput_COUNT);
assert(joystickButton < sf::Joystick::ButtonCount);
s_currWindowCtx->joystickMapping[action] = joystickButton;
}
void SetDPadXAxis(sf::Joystick::Axis dPadXAxis, bool inverted) {
assert(s_currWindowCtx);
s_currWindowCtx->dPadInfo.xAxis = dPadXAxis;
s_currWindowCtx->dPadInfo.xInverted = inverted;
}
void SetDPadYAxis(sf::Joystick::Axis dPadYAxis, bool inverted) {
assert(s_currWindowCtx);
s_currWindowCtx->dPadInfo.yAxis = dPadYAxis;
s_currWindowCtx->dPadInfo.yInverted = inverted;
}
void SetLStickXAxis(sf::Joystick::Axis lStickXAxis, bool inverted) {
assert(s_currWindowCtx);
s_currWindowCtx->lStickInfo.xAxis = lStickXAxis;
s_currWindowCtx->lStickInfo.xInverted = inverted;
}
void SetLStickYAxis(sf::Joystick::Axis lStickYAxis, bool inverted) {
assert(s_currWindowCtx);
s_currWindowCtx->lStickInfo.yAxis = lStickYAxis;
s_currWindowCtx->lStickInfo.yInverted = inverted;
}
} // end of namespace SFML
/////////////// Image Overloads for sf::Texture
void Image(const sf::Texture& texture, const sf::Color& tintColor, const sf::Color& borderColor) {
Image(texture, static_cast<sf::Vector2f>(texture.getSize()), tintColor, borderColor);
}
void Image(const sf::Texture& texture, const sf::Vector2f& size, const sf::Color& tintColor,
const sf::Color& borderColor) {
ImTextureID textureID = convertGLTextureHandleToImTextureID(texture.getNativeHandle());
ImGui::Image(textureID, ImVec2(size.x, size.y), ImVec2(0, 0), ImVec2(1, 1),
toImColor(tintColor), toImColor(borderColor));
}
/////////////// Image Overloads for sf::RenderTexture
void Image(const sf::RenderTexture& texture, const sf::Color& tintColor,
const sf::Color& borderColor) {
Image(texture, static_cast<sf::Vector2f>(texture.getSize()), tintColor, borderColor);
}
void Image(const sf::RenderTexture& texture, const sf::Vector2f& size, const sf::Color& tintColor,
const sf::Color& borderColor) {
ImTextureID textureID =
convertGLTextureHandleToImTextureID(texture.getTexture().getNativeHandle());
ImGui::Image(textureID, ImVec2(size.x, size.y), ImVec2(0, 1),
ImVec2(1, 0), // flipped vertically, because textures in sf::RenderTexture are
// stored this way
toImColor(tintColor), toImColor(borderColor));
}
/////////////// Image Overloads for sf::Sprite
void Image(const sf::Sprite& sprite, const sf::Color& tintColor, const sf::Color& borderColor) {
sf::FloatRect bounds = sprite.getGlobalBounds();
Image(sprite, sf::Vector2f(bounds.width, bounds.height), tintColor, borderColor);
}
void Image(const sf::Sprite& sprite, const sf::Vector2f& size, const sf::Color& tintColor,
const sf::Color& borderColor) {
const sf::Texture* texturePtr = sprite.getTexture();
// sprite without texture cannot be drawn
if (!texturePtr) {
return;
}
const sf::Texture& texture = *texturePtr;
sf::Vector2f textureSize = static_cast<sf::Vector2f>(texture.getSize());
const sf::IntRect& textureRect = sprite.getTextureRect();
ImVec2 uv0(textureRect.left / textureSize.x, textureRect.top / textureSize.y);
ImVec2 uv1((textureRect.left + textureRect.width) / textureSize.x,
(textureRect.top + textureRect.height) / textureSize.y);
ImTextureID textureID = convertGLTextureHandleToImTextureID(texture.getNativeHandle());
ImGui::Image(textureID, ImVec2(size.x, size.y), uv0, uv1, toImColor(tintColor),
toImColor(borderColor));
}
/////////////// Image Button Overloads for sf::Texture
bool ImageButton(const sf::Texture& texture, const int framePadding, const sf::Color& bgColor,
const sf::Color& tintColor) {
return ImageButton(texture, static_cast<sf::Vector2f>(texture.getSize()), framePadding, bgColor,
tintColor);
}
bool ImageButton(const sf::Texture& texture, const sf::Vector2f& size, const int framePadding,
const sf::Color& bgColor, const sf::Color& tintColor) {
ImTextureID textureID = convertGLTextureHandleToImTextureID(texture.getNativeHandle());
return ImGui::ImageButton(textureID, ImVec2(size.x, size.y), ImVec2(0, 0), ImVec2(1, 1),
framePadding, toImColor(bgColor), toImColor(tintColor));
}
/////////////// Image Button Overloads for sf::RenderTexture
bool ImageButton(const sf::RenderTexture& texture, const int framePadding, const sf::Color& bgColor,
const sf::Color& tintColor) {
return ImageButton(texture, static_cast<sf::Vector2f>(texture.getSize()), framePadding, bgColor,
tintColor);
}
bool ImageButton(const sf::RenderTexture& texture, const sf::Vector2f& size, const int framePadding,
const sf::Color& bgColor, const sf::Color& tintColor) {
ImTextureID textureID =
convertGLTextureHandleToImTextureID(texture.getTexture().getNativeHandle());
return ImGui::ImageButton(textureID, ImVec2(size.x, size.y), ImVec2(0, 1),
ImVec2(1, 0), // flipped vertically, because textures in
// sf::RenderTexture are stored this way
framePadding, toImColor(bgColor), toImColor(tintColor));
}
/////////////// Image Button Overloads for sf::Sprite
bool ImageButton(const sf::Sprite& sprite, const int framePadding, const sf::Color& bgColor,
const sf::Color& tintColor) {
sf::FloatRect spriteSize = sprite.getGlobalBounds();
return ImageButton(sprite, sf::Vector2f(spriteSize.width, spriteSize.height), framePadding,
bgColor, tintColor);
}
bool ImageButton(const sf::Sprite& sprite, const sf::Vector2f& size, const int framePadding,
const sf::Color& bgColor, const sf::Color& tintColor) {
const sf::Texture* texturePtr = sprite.getTexture();
// sprite without texture cannot be drawn
if (!texturePtr) {
return false;
}
const sf::Texture& texture = *texturePtr;
sf::Vector2f textureSize = static_cast<sf::Vector2f>(texture.getSize());
const sf::IntRect& textureRect = sprite.getTextureRect();
ImVec2 uv0(textureRect.left / textureSize.x, textureRect.top / textureSize.y);
ImVec2 uv1((textureRect.left + textureRect.width) / textureSize.x,
(textureRect.top + textureRect.height) / textureSize.y);
ImTextureID textureID = convertGLTextureHandleToImTextureID(texture.getNativeHandle());
return ImGui::ImageButton(textureID, ImVec2(size.x, size.y), uv0, uv1, framePadding,
toImColor(bgColor), toImColor(tintColor));
}
/////////////// Draw_list Overloads
void DrawLine(const sf::Vector2f& a, const sf::Vector2f& b, const sf::Color& color,
float thickness) {
ImDrawList* draw_list = ImGui::GetWindowDrawList();
ImVec2 pos = ImGui::GetCursorScreenPos();
draw_list->AddLine(ImVec2(a.x + pos.x, a.y + pos.y), ImVec2(b.x + pos.x, b.y + pos.y),
ColorConvertFloat4ToU32(toImColor(color)), thickness);
}
void DrawRect(const sf::FloatRect& rect, const sf::Color& color, float rounding,
int rounding_corners, float thickness) {
ImDrawList* draw_list = ImGui::GetWindowDrawList();
draw_list->AddRect(getTopLeftAbsolute(rect), getDownRightAbsolute(rect),
ColorConvertFloat4ToU32(toImColor(color)), rounding, rounding_corners,
thickness);
}
void DrawRectFilled(const sf::FloatRect& rect, const sf::Color& color, float rounding,
int rounding_corners) {
ImDrawList* draw_list = ImGui::GetWindowDrawList();
draw_list->AddRectFilled(getTopLeftAbsolute(rect), getDownRightAbsolute(rect),
ColorConvertFloat4ToU32(toImColor(color)), rounding, rounding_corners);
}
} // end of namespace ImGui
namespace {
ImColor toImColor(sf::Color c) {
return ImColor(static_cast<int>(c.r), static_cast<int>(c.g), static_cast<int>(c.b),
static_cast<int>(c.a));
}
ImVec2 getTopLeftAbsolute(const sf::FloatRect& rect) {
ImVec2 pos = ImGui::GetCursorScreenPos();
return ImVec2(rect.left + pos.x, rect.top + pos.y);
}
ImVec2 getDownRightAbsolute(const sf::FloatRect& rect) {
ImVec2 pos = ImGui::GetCursorScreenPos();
return ImVec2(rect.left + rect.width + pos.x, rect.top + rect.height + pos.y);
}
ImTextureID convertGLTextureHandleToImTextureID(GLuint glTextureHandle) {
ImTextureID textureID = (ImTextureID)NULL;
std::memcpy(&textureID, &glTextureHandle, sizeof(GLuint));
return textureID;
}
GLuint convertImTextureIDToGLTextureHandle(ImTextureID textureID) {
GLuint glTextureHandle;
std::memcpy(&glTextureHandle, &textureID, sizeof(GLuint));
return glTextureHandle;
}
// copied from imgui/backends/imgui_impl_opengl2.cpp
void SetupRenderState(ImDrawData* draw_data, int fb_width, int fb_height) {
// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor
// enabled, vertex/texcoord/color pointers, polygon fill.
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA); //
// In order to composite our output buffer we need to preserve alpha
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glDisable(GL_STENCIL_TEST);
glDisable(GL_LIGHTING);
glDisable(GL_COLOR_MATERIAL);
glEnable(GL_SCISSOR_TEST);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
glEnable(GL_TEXTURE_2D);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glShadeModel(GL_SMOOTH);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
// Setup viewport, orthographic projection matrix
// Our visible imgui space lies from draw_data->DisplayPos (top left) to
// draw_data->DisplayPos+data_data->DisplaySize (bottom right). DisplayPos is (0,0) for single
// viewport apps.
glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
#ifdef GL_VERSION_ES_CL_1_1
glOrthof(draw_data->DisplayPos.x, draw_data->DisplayPos.x + draw_data->DisplaySize.x,
draw_data->DisplayPos.y + draw_data->DisplaySize.y, draw_data->DisplayPos.y, -1.0f,
+1.0f);
#else
glOrtho(draw_data->DisplayPos.x, draw_data->DisplayPos.x + draw_data->DisplaySize.x,
draw_data->DisplayPos.y + draw_data->DisplaySize.y, draw_data->DisplayPos.y, -1.0f,
+1.0f);
#endif
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
}
// Rendering callback
void RenderDrawLists(ImDrawData* draw_data) {
ImGui::GetDrawData();
if (draw_data->CmdListsCount == 0) {
return;
}
ImGuiIO& io = ImGui::GetIO();
assert(io.Fonts->TexID != (ImTextureID)NULL); // You forgot to create and set font texture
// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates !=
// framebuffer coordinates)
int fb_width = (int)(draw_data->DisplaySize.x * draw_data->FramebufferScale.x);
int fb_height = (int)(draw_data->DisplaySize.y * draw_data->FramebufferScale.y);
if (fb_width == 0 || fb_height == 0) return;
draw_data->ScaleClipRects(io.DisplayFramebufferScale);
// Backup GL state
// Backup GL state
GLint last_texture;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
GLint last_polygon_mode[2];
glGetIntegerv(GL_POLYGON_MODE, last_polygon_mode);
GLint last_viewport[4];
glGetIntegerv(GL_VIEWPORT, last_viewport);
GLint last_scissor_box[4];
glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
GLint last_shade_model;
glGetIntegerv(GL_SHADE_MODEL, &last_shade_model);
GLint last_tex_env_mode;
glGetTexEnviv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, &last_tex_env_mode);
#ifdef GL_VERSION_ES_CL_1_1
GLint last_array_buffer;
glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
GLint last_element_array_buffer;
glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
#else
glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
#endif
// Setup desired GL state
SetupRenderState(draw_data, fb_width, fb_height);
// Will project scissor/clipping rectangles into framebuffer space
ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
ImVec2 clip_scale = draw_data->FramebufferScale; // (1,1) unless using retina display which are
// often (2,2)
// Render command lists
for (int n = 0; n < draw_data->CmdListsCount; n++) {
const ImDrawList* cmd_list = draw_data->CmdLists[n];
const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
glVertexPointer(2, GL_FLOAT, sizeof(ImDrawVert),
(const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, pos)));
glTexCoordPointer(2, GL_FLOAT, sizeof(ImDrawVert),
(const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, uv)));
glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(ImDrawVert),
(const GLvoid*)((const char*)vtx_buffer + IM_OFFSETOF(ImDrawVert, col)));
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++) {
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback) {
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to
// request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
SetupRenderState(draw_data, fb_width, fb_height);
else
pcmd->UserCallback(cmd_list, pcmd);
} else {
// Project scissor/clipping rectangles into framebuffer space
ImVec4 clip_rect;
clip_rect.x = (pcmd->ClipRect.x - clip_off.x) * clip_scale.x;
clip_rect.y = (pcmd->ClipRect.y - clip_off.y) * clip_scale.y;
clip_rect.z = (pcmd->ClipRect.z - clip_off.x) * clip_scale.x;
clip_rect.w = (pcmd->ClipRect.w - clip_off.y) * clip_scale.y;
if (clip_rect.x < fb_width && clip_rect.y < fb_height && clip_rect.z >= 0.0f &&
clip_rect.w >= 0.0f) {
// Apply scissor/clipping rectangle
glScissor((int)clip_rect.x, (int)(fb_height - clip_rect.w),
(int)(clip_rect.z - clip_rect.x), (int)(clip_rect.w - clip_rect.y));
// Bind texture, Draw
GLuint textureHandle = convertImTextureIDToGLTextureHandle(pcmd->TextureId);
glBindTexture(GL_TEXTURE_2D, textureHandle);
glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount,
sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT,
idx_buffer);
}
}
idx_buffer += pcmd->ElemCount;
}
}
// Restore modified GL state
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_VERTEX_ARRAY);
glBindTexture(GL_TEXTURE_2D, (GLuint)last_texture);
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glPopAttrib();
glPolygonMode(GL_FRONT, (GLenum)last_polygon_mode[0]);
glPolygonMode(GL_BACK, (GLenum)last_polygon_mode[1]);
glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2],
(GLsizei)last_viewport[3]);
glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2],
(GLsizei)last_scissor_box[3]);
glShadeModel(last_shade_model);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, last_tex_env_mode);
#ifdef GL_VERSION_ES_CL_1_1
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer);
glDisable(GL_SCISSOR_TEST);
#endif
}
unsigned int getConnectedJoystickId() {
for (unsigned int i = 0; i < (unsigned int)sf::Joystick::Count; ++i) {
if (sf::Joystick::isConnected(i)) return i;
}
return NULL_JOYSTICK_ID;
}
void initDefaultJoystickMapping() {
ImGui::SFML::SetJoystickMapping(ImGuiNavInput_Activate, 0);
ImGui::SFML::SetJoystickMapping(ImGuiNavInput_Cancel, 1);
ImGui::SFML::SetJoystickMapping(ImGuiNavInput_Input, 3);
ImGui::SFML::SetJoystickMapping(ImGuiNavInput_Menu, 2);
ImGui::SFML::SetJoystickMapping(ImGuiNavInput_FocusPrev, 4);
ImGui::SFML::SetJoystickMapping(ImGuiNavInput_FocusNext, 5);
ImGui::SFML::SetJoystickMapping(ImGuiNavInput_TweakSlow, 4);
ImGui::SFML::SetJoystickMapping(ImGuiNavInput_TweakFast, 5);
ImGui::SFML::SetDPadXAxis(sf::Joystick::PovX);
// D-pad Y axis is inverted on Windows
#ifdef _WIN32
ImGui::SFML::SetDPadYAxis(sf::Joystick::PovY, true);
#else
ImGui::SFML::SetDPadYAxis(sf::Joystick::PovY);
#endif
ImGui::SFML::SetLStickXAxis(sf::Joystick::X);
ImGui::SFML::SetLStickYAxis(sf::Joystick::Y);
ImGui::SFML::SetJoytickDPadThreshold(5.f);
ImGui::SFML::SetJoytickLStickThreshold(5.f);
}
void updateJoystickActionState(ImGuiIO& io, ImGuiNavInput_ action) {
bool isPressed = sf::Joystick::isButtonPressed(s_currWindowCtx->joystickId,
s_currWindowCtx->joystickMapping[action]);
io.NavInputs[action] = isPressed ? 1.0f : 0.0f;
}
void updateJoystickDPadState(ImGuiIO& io) {
float dpadXPos =
sf::Joystick::getAxisPosition(s_currWindowCtx->joystickId, s_currWindowCtx->dPadInfo.xAxis);
if (s_currWindowCtx->dPadInfo.xInverted) dpadXPos = -dpadXPos;
float dpadYPos =
sf::Joystick::getAxisPosition(s_currWindowCtx->joystickId, s_currWindowCtx->dPadInfo.yAxis);
if (s_currWindowCtx->dPadInfo.yInverted) dpadYPos = -dpadYPos;
io.NavInputs[ImGuiNavInput_DpadLeft] =
dpadXPos < -s_currWindowCtx->dPadInfo.threshold ? 1.0f : 0.0f;
io.NavInputs[ImGuiNavInput_DpadRight] =
dpadXPos > s_currWindowCtx->dPadInfo.threshold ? 1.0f : 0.0f;
io.NavInputs[ImGuiNavInput_DpadUp] =
dpadYPos < -s_currWindowCtx->dPadInfo.threshold ? 1.0f : 0.0f;
io.NavInputs[ImGuiNavInput_DpadDown] =
dpadYPos > s_currWindowCtx->dPadInfo.threshold ? 1.0f : 0.0f;
}
void updateJoystickLStickState(ImGuiIO& io) {
float lStickXPos = sf::Joystick::getAxisPosition(s_currWindowCtx->joystickId,
s_currWindowCtx->lStickInfo.xAxis);
if (s_currWindowCtx->lStickInfo.xInverted) lStickXPos = -lStickXPos;
float lStickYPos = sf::Joystick::getAxisPosition(s_currWindowCtx->joystickId,
s_currWindowCtx->lStickInfo.yAxis);
if (s_currWindowCtx->lStickInfo.yInverted) lStickYPos = -lStickYPos;
if (lStickXPos < -s_currWindowCtx->lStickInfo.threshold) {
io.NavInputs[ImGuiNavInput_LStickLeft] = std::abs(lStickXPos / 100.f);
}
if (lStickXPos > s_currWindowCtx->lStickInfo.threshold) {
io.NavInputs[ImGuiNavInput_LStickRight] = lStickXPos / 100.f;
}
if (lStickYPos < -s_currWindowCtx->lStickInfo.threshold) {
io.NavInputs[ImGuiNavInput_LStickUp] = std::abs(lStickYPos / 100.f);
}
if (lStickYPos > s_currWindowCtx->lStickInfo.threshold) {
io.NavInputs[ImGuiNavInput_LStickDown] = lStickYPos / 100.f;
}
}
void setClipboardText(void* /*userData*/, const char* text) {
sf::Clipboard::setString(sf::String::fromUtf8(text, text + std::strlen(text)));
}
const char* getClipboardText(void* /*userData*/) {
std::basic_string<sf::Uint8> tmp = sf::Clipboard::getString().toUtf8();
s_clipboardText = std::string(tmp.begin(), tmp.end());
return s_clipboardText.c_str();
}
void loadMouseCursor(ImGuiMouseCursor imguiCursorType, sf::Cursor::Type sfmlCursorType) {
s_currWindowCtx->mouseCursors[imguiCursorType] = new sf::Cursor();
s_currWindowCtx->mouseCursorLoaded[imguiCursorType] =
s_currWindowCtx->mouseCursors[imguiCursorType]->loadFromSystem(sfmlCursorType);
}
void updateMouseCursor(sf::Window& window) {
ImGuiIO& io = ImGui::GetIO();
if ((io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange) == 0) {
ImGuiMouseCursor cursor = ImGui::GetMouseCursor();
if (io.MouseDrawCursor || cursor == ImGuiMouseCursor_None) {
window.setMouseCursorVisible(false);
} else {
window.setMouseCursorVisible(true);
sf::Cursor& c = s_currWindowCtx->mouseCursorLoaded[cursor] ?
*s_currWindowCtx->mouseCursors[cursor] :
*s_currWindowCtx->mouseCursors[ImGuiMouseCursor_Arrow];
window.setMouseCursor(c);
}
}
}
} // end of anonymous namespace
View Git Blame Copy Permalink