mirror of
https://github.com/shadps4-emu/ext-imgui.git
synced 2024-11-27 04:00:51 +00:00
274 lines
11 KiB
Plaintext
274 lines
11 KiB
Plaintext
// dear imgui: Platform Binding for OSX / Cocoa
|
|
// This needs to be used along with a Renderer (e.g. OpenGL2, OpenGL3, Vulkan, Metal..)
|
|
// [ALPHA] Early bindings, not well tested. If you want a portable application, prefer using the GLFW or SDL platform bindings on Mac.
|
|
|
|
// Implemented features:
|
|
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
|
|
// [X] Platform: OSX clipboard is supported within core Dear ImGui (no specific code in this back-end).
|
|
// Issues:
|
|
// [ ] Platform: Keys are all generally very broken. Best using [event keycode] and not [event characters]..
|
|
|
|
#include "imgui.h"
|
|
#include "imgui_impl_osx.h"
|
|
#import <Cocoa/Cocoa.h>
|
|
|
|
// CHANGELOG
|
|
// (minor and older changes stripped away, please see git history for details)
|
|
// 2019-05-28: Inputs: Added mouse cursor shape and visibility support.
|
|
// 2019-05-18: Misc: Removed clipboard handlers as they are now supported by core imgui.cpp.
|
|
// 2019-05-11: Inputs: Don't filter character values before calling AddInputCharacter() apart from 0xF700..0xFFFF range.
|
|
// 2018-11-30: Misc: Setting up io.BackendPlatformName so it can be displayed in the About Window.
|
|
// 2018-07-07: Initial version.
|
|
|
|
// Data
|
|
static CFAbsoluteTime g_Time = 0.0;
|
|
static NSCursor* g_MouseCursors[ImGuiMouseCursor_COUNT] = { 0 };
|
|
static bool g_MouseCursorHidden = false;
|
|
|
|
// Undocumented methods for creating cursors.
|
|
@interface NSCursor()
|
|
+ (id)_windowResizeNorthWestSouthEastCursor;
|
|
+ (id)_windowResizeNorthEastSouthWestCursor;
|
|
+ (id)_windowResizeNorthSouthCursor;
|
|
+ (id)_windowResizeEastWestCursor;
|
|
@end
|
|
|
|
// Functions
|
|
bool ImGui_ImplOSX_Init()
|
|
{
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
|
|
// Setup back-end capabilities flags
|
|
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
|
|
//io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
|
|
//io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports; // We can create multi-viewports on the Platform side (optional)
|
|
//io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can set io.MouseHoveredViewport correctly (optional, not easy)
|
|
io.BackendPlatformName = "imgui_impl_osx";
|
|
|
|
// Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array.
|
|
const int offset_for_function_keys = 256 - 0xF700;
|
|
io.KeyMap[ImGuiKey_Tab] = '\t';
|
|
io.KeyMap[ImGuiKey_LeftArrow] = NSLeftArrowFunctionKey + offset_for_function_keys;
|
|
io.KeyMap[ImGuiKey_RightArrow] = NSRightArrowFunctionKey + offset_for_function_keys;
|
|
io.KeyMap[ImGuiKey_UpArrow] = NSUpArrowFunctionKey + offset_for_function_keys;
|
|
io.KeyMap[ImGuiKey_DownArrow] = NSDownArrowFunctionKey + offset_for_function_keys;
|
|
io.KeyMap[ImGuiKey_PageUp] = NSPageUpFunctionKey + offset_for_function_keys;
|
|
io.KeyMap[ImGuiKey_PageDown] = NSPageDownFunctionKey + offset_for_function_keys;
|
|
io.KeyMap[ImGuiKey_Home] = NSHomeFunctionKey + offset_for_function_keys;
|
|
io.KeyMap[ImGuiKey_End] = NSEndFunctionKey + offset_for_function_keys;
|
|
io.KeyMap[ImGuiKey_Insert] = NSInsertFunctionKey + offset_for_function_keys;
|
|
io.KeyMap[ImGuiKey_Delete] = NSDeleteFunctionKey + offset_for_function_keys;
|
|
io.KeyMap[ImGuiKey_Backspace] = 127;
|
|
io.KeyMap[ImGuiKey_Space] = 32;
|
|
io.KeyMap[ImGuiKey_Enter] = 13;
|
|
io.KeyMap[ImGuiKey_Escape] = 27;
|
|
io.KeyMap[ImGuiKey_A] = 'A';
|
|
io.KeyMap[ImGuiKey_C] = 'C';
|
|
io.KeyMap[ImGuiKey_V] = 'V';
|
|
io.KeyMap[ImGuiKey_X] = 'X';
|
|
io.KeyMap[ImGuiKey_Y] = 'Y';
|
|
io.KeyMap[ImGuiKey_Z] = 'Z';
|
|
|
|
// Load cursors. Some of them are undocumented.
|
|
g_MouseCursorHidden = false;
|
|
g_MouseCursors[ImGuiMouseCursor_Arrow] = [NSCursor arrowCursor];
|
|
g_MouseCursors[ImGuiMouseCursor_TextInput] = [NSCursor IBeamCursor];
|
|
g_MouseCursors[ImGuiMouseCursor_ResizeAll] = [NSCursor closedHandCursor];
|
|
g_MouseCursors[ImGuiMouseCursor_Hand] = [NSCursor pointingHandCursor];
|
|
g_MouseCursors[ImGuiMouseCursor_ResizeNS] = [NSCursor respondsToSelector:@selector(_windowResizeNorthSouthCursor)] ? [NSCursor _windowResizeNorthSouthCursor] : [NSCursor resizeUpDownCursor];
|
|
g_MouseCursors[ImGuiMouseCursor_ResizeEW] = [NSCursor respondsToSelector:@selector(_windowResizeEastWestCursor)] ? [NSCursor _windowResizeEastWestCursor] : [NSCursor resizeLeftRightCursor];
|
|
g_MouseCursors[ImGuiMouseCursor_ResizeNESW] = [NSCursor respondsToSelector:@selector(_windowResizeNorthEastSouthWestCursor)] ? [NSCursor _windowResizeNorthEastSouthWestCursor] : [NSCursor closedHandCursor];
|
|
g_MouseCursors[ImGuiMouseCursor_ResizeNWSE] = [NSCursor respondsToSelector:@selector(_windowResizeNorthWestSouthEastCursor)] ? [NSCursor _windowResizeNorthWestSouthEastCursor] : [NSCursor closedHandCursor];
|
|
|
|
// We don't set the io.SetClipboardTextFn/io.GetClipboardTextFn handlers,
|
|
// because imgui.cpp has a default for them that works with OSX.
|
|
|
|
return true;
|
|
}
|
|
|
|
void ImGui_ImplOSX_Shutdown()
|
|
{
|
|
}
|
|
|
|
static void ImGui_ImplOSX_UpdateMouseCursor()
|
|
{
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
|
|
return;
|
|
|
|
ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
|
|
if (io.MouseDrawCursor || imgui_cursor == ImGuiMouseCursor_None)
|
|
{
|
|
// Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
|
|
if (!g_MouseCursorHidden)
|
|
{
|
|
g_MouseCursorHidden = true;
|
|
[NSCursor hide];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Show OS mouse cursor
|
|
[g_MouseCursors[g_MouseCursors[imgui_cursor] ? imgui_cursor : ImGuiMouseCursor_Arrow] set];
|
|
if (g_MouseCursorHidden)
|
|
{
|
|
g_MouseCursorHidden = false;
|
|
[NSCursor unhide];
|
|
}
|
|
}
|
|
}
|
|
|
|
void ImGui_ImplOSX_NewFrame(NSView* view)
|
|
{
|
|
// Setup display size
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
const float dpi = [view.window backingScaleFactor];
|
|
io.DisplaySize = ImVec2((float)view.bounds.size.width, (float)view.bounds.size.height);
|
|
io.DisplayFramebufferScale = ImVec2(dpi, dpi);
|
|
|
|
// Setup time step
|
|
if (g_Time == 0.0)
|
|
g_Time = CFAbsoluteTimeGetCurrent();
|
|
CFAbsoluteTime current_time = CFAbsoluteTimeGetCurrent();
|
|
io.DeltaTime = current_time - g_Time;
|
|
g_Time = current_time;
|
|
|
|
ImGui_ImplOSX_UpdateMouseCursor();
|
|
}
|
|
|
|
static int mapCharacterToKey(int c)
|
|
{
|
|
if (c >= 'a' && c <= 'z')
|
|
return c - 'a' + 'A';
|
|
if (c == 25) // SHIFT+TAB -> TAB
|
|
return 9;
|
|
if (c >= 0 && c < 256)
|
|
return c;
|
|
if (c >= 0xF700 && c < 0xF700 + 256)
|
|
return c - 0xF700 + 256;
|
|
return -1;
|
|
}
|
|
|
|
static void resetKeys()
|
|
{
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
for (int n = 0; n < IM_ARRAYSIZE(io.KeysDown); n++)
|
|
io.KeysDown[n] = false;
|
|
}
|
|
|
|
bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view)
|
|
{
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
|
|
if (event.type == NSEventTypeLeftMouseDown || event.type == NSEventTypeRightMouseDown || event.type == NSEventTypeOtherMouseDown)
|
|
{
|
|
int button = (int)[event buttonNumber];
|
|
if (button >= 0 && button < IM_ARRAYSIZE(io.MouseDown))
|
|
io.MouseDown[button] = true;
|
|
return io.WantCaptureMouse;
|
|
}
|
|
|
|
if (event.type == NSEventTypeLeftMouseUp || event.type == NSEventTypeRightMouseUp || event.type == NSEventTypeOtherMouseUp)
|
|
{
|
|
int button = (int)[event buttonNumber];
|
|
if (button >= 0 && button < IM_ARRAYSIZE(io.MouseDown))
|
|
io.MouseDown[button] = false;
|
|
return io.WantCaptureMouse;
|
|
}
|
|
|
|
if (event.type == NSEventTypeMouseMoved || event.type == NSEventTypeLeftMouseDragged)
|
|
{
|
|
NSPoint mousePoint = event.locationInWindow;
|
|
mousePoint = [view convertPoint:mousePoint fromView:nil];
|
|
mousePoint = NSMakePoint(mousePoint.x, view.bounds.size.height - mousePoint.y);
|
|
io.MousePos = ImVec2(mousePoint.x, mousePoint.y);
|
|
}
|
|
|
|
if (event.type == NSEventTypeScrollWheel)
|
|
{
|
|
double wheel_dx = 0.0;
|
|
double wheel_dy = 0.0;
|
|
|
|
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
|
|
if (floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_6)
|
|
{
|
|
wheel_dx = [event scrollingDeltaX];
|
|
wheel_dy = [event scrollingDeltaY];
|
|
if ([event hasPreciseScrollingDeltas])
|
|
{
|
|
wheel_dx *= 0.1;
|
|
wheel_dy *= 0.1;
|
|
}
|
|
}
|
|
else
|
|
#endif /*MAC_OS_X_VERSION_MAX_ALLOWED*/
|
|
{
|
|
wheel_dx = [event deltaX];
|
|
wheel_dy = [event deltaY];
|
|
}
|
|
|
|
if (fabs(wheel_dx) > 0.0)
|
|
io.MouseWheelH += wheel_dx * 0.1f;
|
|
if (fabs(wheel_dy) > 0.0)
|
|
io.MouseWheel += wheel_dy * 0.1f;
|
|
return io.WantCaptureMouse;
|
|
}
|
|
|
|
// FIXME: All the key handling is wrong and broken. Refer to GLFW's cocoa_init.mm and cocoa_window.mm.
|
|
if (event.type == NSEventTypeKeyDown)
|
|
{
|
|
NSString* str = [event characters];
|
|
int len = (int)[str length];
|
|
for (int i = 0; i < len; i++)
|
|
{
|
|
int c = [str characterAtIndex:i];
|
|
if (!io.KeyCtrl && !(c >= 0xF700 && c <= 0xFFFF))
|
|
io.AddInputCharacter((unsigned int)c);
|
|
|
|
// We must reset in case we're pressing a sequence of special keys while keeping the command pressed
|
|
int key = mapCharacterToKey(c);
|
|
if (key != -1 && key < 256 && !io.KeyCtrl)
|
|
resetKeys();
|
|
if (key != -1)
|
|
io.KeysDown[key] = true;
|
|
}
|
|
return io.WantCaptureKeyboard;
|
|
}
|
|
|
|
if (event.type == NSEventTypeKeyUp)
|
|
{
|
|
NSString* str = [event characters];
|
|
int len = (int)[str length];
|
|
for (int i = 0; i < len; i++)
|
|
{
|
|
int c = [str characterAtIndex:i];
|
|
int key = mapCharacterToKey(c);
|
|
if (key != -1)
|
|
io.KeysDown[key] = false;
|
|
}
|
|
return io.WantCaptureKeyboard;
|
|
}
|
|
|
|
if (event.type == NSEventTypeFlagsChanged)
|
|
{
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
unsigned int flags = [event modifierFlags] & NSEventModifierFlagDeviceIndependentFlagsMask;
|
|
|
|
bool oldKeyCtrl = io.KeyCtrl;
|
|
bool oldKeyShift = io.KeyShift;
|
|
bool oldKeyAlt = io.KeyAlt;
|
|
bool oldKeySuper = io.KeySuper;
|
|
io.KeyCtrl = flags & NSEventModifierFlagControl;
|
|
io.KeyShift = flags & NSEventModifierFlagShift;
|
|
io.KeyAlt = flags & NSEventModifierFlagOption;
|
|
io.KeySuper = flags & NSEventModifierFlagCommand;
|
|
|
|
// We must reset them as we will not receive any keyUp event if they where pressed with a modifier
|
|
if ((oldKeyShift && !io.KeyShift) || (oldKeyCtrl && !io.KeyCtrl) || (oldKeyAlt && !io.KeyAlt) || (oldKeySuper && !io.KeySuper))
|
|
resetKeys();
|
|
return io.WantCaptureKeyboard;
|
|
}
|
|
|
|
return false;
|
|
}
|