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Examples: OSX: Fixed obsolete enums. Fixed keyboard mapping. Added missing keyboard modifiers. (#1873)
This commit is contained in:
Omar Cornut
parent
fac0c801da
commit
e54b61aa0f
@ -191,7 +191,7 @@
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appMenu = [[NSMenu alloc] initWithTitle:@"ImGui OSX+OpenGL2 Example"];
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menuItem = [appMenu addItemWithTitle:@"Quit ImGui OSX+OpenGL2 Example" action:@selector(terminate:) keyEquivalent:@"q"];
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[menuItem setKeyEquivalentModifierMask:NSCommandKeyMask];
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[menuItem setKeyEquivalentModifierMask:NSEventModifierFlagCommand];
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menuItem = [[NSMenuItem alloc] init];
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[menuItem setSubmenu:appMenu];
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@ -1,9 +1,10 @@
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// ImGui Platform Binding for: OSX / Cocoa
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// This needs to be used along with a Renderer (e.g. OpenGL2, OpenGL3, Vulkan..)
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// FIXME-OSX: Keyboard mapping is weird.
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// FIXME-OSX: Mouse cursor shape support (see https://github.com/glfw/glfw/issues/427)
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// FIXME-OSX: Test renderer backend combination, e.g. OpenGL3
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// Issues:
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// [ ] Platform: CTRL+Tab can't be read.
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// [ ] Platform: Mouse cursor shapes are not supported (see end of https://github.com/glfw/glfw/issues/427)
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// [ ] Test with another renderer back-end than OpenGL2. e.g. OpenGL3.
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#include "imgui.h"
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#include "imgui_impl_osx.h"
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@ -11,7 +12,7 @@
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// CHANGELOG
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// (minor and older changes stripped away, please see git history for details)
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// 2018-XX-XX: Initial version.
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// 2018-06-XX: Initial version.
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// Data
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static clock_t g_Time = 0;
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@ -28,31 +29,28 @@ bool ImGui_ImplOSX_Init()
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//io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can set io.MouseHoveredViewport correctly (optional, not easy)
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// Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array.
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io.KeyMap[ImGuiKey_Tab] = 9;
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io.KeyMap[ImGuiKey_LeftArrow] = ImGuiKey_LeftArrow;
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io.KeyMap[ImGuiKey_RightArrow] = ImGuiKey_RightArrow;
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io.KeyMap[ImGuiKey_UpArrow] = ImGuiKey_UpArrow;
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io.KeyMap[ImGuiKey_DownArrow] = ImGuiKey_DownArrow;
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io.KeyMap[ImGuiKey_PageUp] = ImGuiKey_PageUp;
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io.KeyMap[ImGuiKey_PageDown] = ImGuiKey_PageDown;
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io.KeyMap[ImGuiKey_Home] = ImGuiKey_Home;
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io.KeyMap[ImGuiKey_End] = ImGuiKey_End;
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io.KeyMap[ImGuiKey_Insert] = ImGuiKey_Insert;
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io.KeyMap[ImGuiKey_Delete] = ImGuiKey_Delete;
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const int offset_for_function_keys = 256 - 0xF700;
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io.KeyMap[ImGuiKey_Tab] = '\t';
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io.KeyMap[ImGuiKey_LeftArrow] = NSLeftArrowFunctionKey + offset_for_function_keys;
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io.KeyMap[ImGuiKey_RightArrow] = NSRightArrowFunctionKey + offset_for_function_keys;
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io.KeyMap[ImGuiKey_UpArrow] = NSUpArrowFunctionKey + offset_for_function_keys;
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io.KeyMap[ImGuiKey_DownArrow] = NSDownArrowFunctionKey + offset_for_function_keys;
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io.KeyMap[ImGuiKey_PageUp] = NSPageUpFunctionKey + offset_for_function_keys;
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io.KeyMap[ImGuiKey_PageDown] = NSPageDownFunctionKey + offset_for_function_keys;
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io.KeyMap[ImGuiKey_Home] = NSHomeFunctionKey + offset_for_function_keys;
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io.KeyMap[ImGuiKey_End] = NSEndFunctionKey + offset_for_function_keys;
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io.KeyMap[ImGuiKey_Insert] = NSInsertFunctionKey + offset_for_function_keys;
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io.KeyMap[ImGuiKey_Delete] = NSDeleteFunctionKey + offset_for_function_keys;
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io.KeyMap[ImGuiKey_Backspace] = 127;
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io.KeyMap[ImGuiKey_Space] = 32;
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io.KeyMap[ImGuiKey_Enter] = 13;
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io.KeyMap[ImGuiKey_Escape] = 27;
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io.KeyMap[ImGuiKey_A] = 'a';
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io.KeyMap[ImGuiKey_C] = 'c';
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io.KeyMap[ImGuiKey_V] = 'v';
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io.KeyMap[ImGuiKey_X] = 'x';
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io.KeyMap[ImGuiKey_Y] = 'y';
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io.KeyMap[ImGuiKey_Z] = 'z';
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// Time elapsed since last frame, in seconds
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// (in this sample app we'll override this every frame because our time step is variable)
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io.DeltaTime = 1.0f/60.0f;
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io.KeyMap[ImGuiKey_A] = 'A';
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io.KeyMap[ImGuiKey_C] = 'C';
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io.KeyMap[ImGuiKey_V] = 'V';
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io.KeyMap[ImGuiKey_X] = 'X';
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io.KeyMap[ImGuiKey_Y] = 'Y';
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io.KeyMap[ImGuiKey_Z] = 'Z';
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return true;
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}
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@ -63,9 +61,8 @@ void ImGui_ImplOSX_Shutdown()
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void ImGui_ImplOSX_NewFrame(NSOpenGLView* view)
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{
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ImGuiIO& io = ImGui::GetIO();
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// Setup display size
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ImGuiIO& io = ImGui::GetIO();
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const float dpi = [view.window backingScaleFactor];
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io.DisplaySize = ImVec2((float)view.bounds.size.width, (float)view.bounds.size.height);
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io.DisplayFramebufferScale = ImVec2(dpi, dpi);
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@ -86,47 +83,26 @@ void ImGui_ImplOSX_NewFrame(NSOpenGLView* view)
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ImGui::NewFrame();
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}
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// FIXME-OSX: Store in io.KeysDown[]
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static bool mapKeymap(int* keymap)
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static int mapCharacterToKey(int c)
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{
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if (*keymap == NSUpArrowFunctionKey)
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*keymap = ImGuiKey_LeftArrow;
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else if (*keymap == NSDownArrowFunctionKey)
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*keymap = ImGuiKey_DownArrow;
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else if (*keymap == NSLeftArrowFunctionKey)
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*keymap = ImGuiKey_LeftArrow;
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else if (*keymap == NSRightArrowFunctionKey)
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*keymap = ImGuiKey_RightArrow;
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else if (*keymap == NSHomeFunctionKey)
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*keymap = ImGuiKey_Home;
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else if (*keymap == NSEndFunctionKey)
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*keymap = ImGuiKey_End;
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else if (*keymap == NSDeleteFunctionKey)
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*keymap = ImGuiKey_Delete;
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else if (*keymap == 25) // SHIFT + TAB
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*keymap = 9; // TAB
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else
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return true;
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return false;
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if (c >= 'a' && c <= 'z')
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return c - 'a' + 'A';
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if (c == 25) // SHIFT+TAB -> TAB
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return 9;
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if (c >= 0 && c < 256)
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return c;
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if (c >= 0xF700 && c < 0xF700 + 256)
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return c - 0xF700 + 256;
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return -1;
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}
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static void ResetKeys()
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// Reset the non-characters keys
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static void resetKeys()
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{
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// FIXME-OSX: Mapping
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ImGuiIO& io = ImGui::GetIO();
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io.KeysDown[io.KeyMap[ImGuiKey_A]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_C]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_V]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_X]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_Y]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_Z]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_LeftArrow]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_RightArrow]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_Tab]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_UpArrow]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_DownArrow]] = false;
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io.KeysDown[io.KeyMap[ImGuiKey_Tab]] = false;
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for (int n = 0; n < IM_ARRAYSIZE(io.KeyMap); n++)
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if (io.KeyMap[n] != -1 && io.KeyMap[n] >= 256)
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io.KeysDown[io.KeyMap[n]] = false;
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}
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bool ImGui_ImplOSX_HandleEvent(NSEvent* event)
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@ -186,16 +162,16 @@ bool ImGui_ImplOSX_HandleEvent(NSEvent* event)
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int len = (int)[str length];
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for (int i = 0; i < len; i++)
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{
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int keymap = [str characterAtIndex:i];
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if (mapKeymap(&keymap) && !io.KeyCtrl)
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io.AddInputCharacter(keymap);
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if (keymap < 512)
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{
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int c = [str characterAtIndex:i];
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if (c < 0xF700 && !io.KeyCtrl)
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io.AddInputCharacter(c);
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// We must reset in case we're pressing a sequence of special keys while keeping the command pressed
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if (io.KeyCtrl)
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ResetKeys();
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io.KeysDown[keymap] = true;
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}
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int key = mapCharacterToKey(c);
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if (key != -1 && key < 256 && !io.KeyCtrl)
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resetKeys();
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if (key != -1)
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io.KeysDown[key] = true;
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}
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return io.WantCaptureKeyboard;
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}
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@ -206,29 +182,31 @@ bool ImGui_ImplOSX_HandleEvent(NSEvent* event)
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int len = (int)[str length];
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for (int i = 0; i < len; i++)
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{
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int keymap = [str characterAtIndex:i];
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mapKeymap(&keymap);
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if (keymap < 512)
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io.KeysDown[keymap] = false;
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int c = [str characterAtIndex:i];
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int key = mapCharacterToKey(c);
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if (key != -1)
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io.KeysDown[key] = false;
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}
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return io.WantCaptureKeyboard;
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}
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if (event.type == NSEventTypeFlagsChanged)
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{
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unsigned int flags;
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flags = [event modifierFlags] & NSDeviceIndependentModifierFlagsMask;
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ImGuiIO& io = ImGui::GetIO();
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bool wasKeyShift= io.KeyShift;
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bool wasKeyCtrl = io.KeyCtrl;
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io.KeyShift = flags & NSShiftKeyMask;
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io.KeyCtrl = flags & NSCommandKeyMask;
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bool keyShiftReleased = wasKeyShift && !io.KeyShift;
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bool keyCtrlReleased = wasKeyCtrl && !io.KeyCtrl;
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unsigned int flags = [event modifierFlags] & NSEventModifierFlagDeviceIndependentFlagsMask;
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bool oldKeyCtrl = io.KeyCtrl;
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bool oldKeyShift = io.KeyShift;
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bool oldKeyAlt = io.KeyAlt;
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bool oldKeySuper = io.KeySuper;
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io.KeyCtrl = flags & NSEventModifierFlagControl;
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io.KeyShift = flags & NSEventModifierFlagShift;
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io.KeyAlt = flags & NSEventModifierFlagOption;
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io.KeySuper = flags & NSEventModifierFlagCommand;
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// We must reset them as we will not receive any keyUp event if they where pressed during shift or command
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if (keyShiftReleased || keyCtrlReleased)
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ResetKeys();
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if ((oldKeyShift && !io.KeyShift) || (oldKeyCtrl && !io.KeyCtrl))
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resetKeys();
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return io.WantCaptureKeyboard;
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}
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