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Examples: Extracted gamepad code into ImGui_ImplGlfw_UpdateGamepads(). Renamed matching Win32 function for consistency.

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Added more link to nothing's oversample document. Spacing bits.
This commit is contained in:
omar 2019-02-14 18:55:08 +01:00
parent 3c07ec6a61
commit 93d1179805
5 changed files with 53 additions and 44 deletions
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70
examples/imgui_impl_glfw.cpp
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@ -265,6 +265,43 @@ static void ImGui_ImplGlfw_UpdateMouseCursor()
} }
} }
static void ImGui_ImplGlfw_UpdateGamepads()
{
ImGuiIO& io = ImGui::GetIO();
memset(io.NavInputs, 0, sizeof(io.NavInputs));
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
return;
// Update gamepad inputs
#define MAP_BUTTON(NAV_NO, BUTTON_NO) { if (buttons_count > BUTTON_NO && buttons[BUTTON_NO] == GLFW_PRESS) io.NavInputs[NAV_NO] = 1.0f; }
#define MAP_ANALOG(NAV_NO, AXIS_NO, V0, V1) { float v = (axes_count > AXIS_NO) ? axes[AXIS_NO] : V0; v = (v - V0) / (V1 - V0); if (v > 1.0f) v = 1.0f; if (io.NavInputs[NAV_NO] < v) io.NavInputs[NAV_NO] = v; }
int axes_count = 0, buttons_count = 0;
const float* axes = glfwGetJoystickAxes(GLFW_JOYSTICK_1, &axes_count);
const unsigned char* buttons = glfwGetJoystickButtons(GLFW_JOYSTICK_1, &buttons_count);
MAP_BUTTON(ImGuiNavInput_Activate, 0); // Cross / A
MAP_BUTTON(ImGuiNavInput_Cancel, 1); // Circle / B
MAP_BUTTON(ImGuiNavInput_Menu, 2); // Square / X
MAP_BUTTON(ImGuiNavInput_Input, 3); // Triangle / Y
MAP_BUTTON(ImGuiNavInput_DpadLeft, 13); // D-Pad Left
MAP_BUTTON(ImGuiNavInput_DpadRight, 11); // D-Pad Right
MAP_BUTTON(ImGuiNavInput_DpadUp, 10); // D-Pad Up
MAP_BUTTON(ImGuiNavInput_DpadDown, 12); // D-Pad Down
MAP_BUTTON(ImGuiNavInput_FocusPrev, 4); // L1 / LB
MAP_BUTTON(ImGuiNavInput_FocusNext, 5); // R1 / RB
MAP_BUTTON(ImGuiNavInput_TweakSlow, 4); // L1 / LB
MAP_BUTTON(ImGuiNavInput_TweakFast, 5); // R1 / RB
MAP_ANALOG(ImGuiNavInput_LStickLeft, 0, -0.3f, -0.9f);
MAP_ANALOG(ImGuiNavInput_LStickRight,0, +0.3f, +0.9f);
MAP_ANALOG(ImGuiNavInput_LStickUp, 1, +0.3f, +0.9f);
MAP_ANALOG(ImGuiNavInput_LStickDown, 1, -0.3f, -0.9f);
#undef MAP_BUTTON
#undef MAP_ANALOG
if (axes_count > 0 && buttons_count > 0)
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
else
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
}
void ImGui_ImplGlfw_NewFrame() void ImGui_ImplGlfw_NewFrame()
{ {
ImGuiIO& io = ImGui::GetIO(); ImGuiIO& io = ImGui::GetIO();
@ -287,36 +324,5 @@ void ImGui_ImplGlfw_NewFrame()
ImGui_ImplGlfw_UpdateMouseCursor(); ImGui_ImplGlfw_UpdateMouseCursor();
// Gamepad navigation mapping // Gamepad navigation mapping
memset(io.NavInputs, 0, sizeof(io.NavInputs)); ImGui_ImplGlfw_UpdateGamepads();
if (io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad)
{
// Update gamepad inputs
#define MAP_BUTTON(NAV_NO, BUTTON_NO) { if (buttons_count > BUTTON_NO && buttons[BUTTON_NO] == GLFW_PRESS) io.NavInputs[NAV_NO] = 1.0f; }
#define MAP_ANALOG(NAV_NO, AXIS_NO, V0, V1) { float v = (axes_count > AXIS_NO) ? axes[AXIS_NO] : V0; v = (v - V0) / (V1 - V0); if (v > 1.0f) v = 1.0f; if (io.NavInputs[NAV_NO] < v) io.NavInputs[NAV_NO] = v; }
int axes_count = 0, buttons_count = 0;
const float* axes = glfwGetJoystickAxes(GLFW_JOYSTICK_1, &axes_count);
const unsigned char* buttons = glfwGetJoystickButtons(GLFW_JOYSTICK_1, &buttons_count);
MAP_BUTTON(ImGuiNavInput_Activate, 0); // Cross / A
MAP_BUTTON(ImGuiNavInput_Cancel, 1); // Circle / B
MAP_BUTTON(ImGuiNavInput_Menu, 2); // Square / X
MAP_BUTTON(ImGuiNavInput_Input, 3); // Triangle / Y
MAP_BUTTON(ImGuiNavInput_DpadLeft, 13); // D-Pad Left
MAP_BUTTON(ImGuiNavInput_DpadRight, 11); // D-Pad Right
MAP_BUTTON(ImGuiNavInput_DpadUp, 10); // D-Pad Up
MAP_BUTTON(ImGuiNavInput_DpadDown, 12); // D-Pad Down
MAP_BUTTON(ImGuiNavInput_FocusPrev, 4); // L1 / LB
MAP_BUTTON(ImGuiNavInput_FocusNext, 5); // R1 / RB
MAP_BUTTON(ImGuiNavInput_TweakSlow, 4); // L1 / LB
MAP_BUTTON(ImGuiNavInput_TweakFast, 5); // R1 / RB
MAP_ANALOG(ImGuiNavInput_LStickLeft, 0, -0.3f, -0.9f);
MAP_ANALOG(ImGuiNavInput_LStickRight,0, +0.3f, +0.9f);
MAP_ANALOG(ImGuiNavInput_LStickUp, 1, +0.3f, +0.9f);
MAP_ANALOG(ImGuiNavInput_LStickDown, 1, -0.3f, -0.9f);
#undef MAP_BUTTON
#undef MAP_ANALOG
if (axes_count > 0 && buttons_count > 0)
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
else
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
}
} }

4
examples/imgui_impl_win32.cpp
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@ -150,7 +150,7 @@ static void ImGui_ImplWin32_UpdateMousePos()
#endif #endif
// Gamepad navigation mapping // Gamepad navigation mapping
void ImGui_ImplWin32_UpdateGameControllers() static void ImGui_ImplWin32_UpdateGamepads()
{ {
ImGuiIO& io = ImGui::GetIO(); ImGuiIO& io = ImGui::GetIO();
memset(io.NavInputs, 0, sizeof(io.NavInputs)); memset(io.NavInputs, 0, sizeof(io.NavInputs));
@ -231,7 +231,7 @@ void ImGui_ImplWin32_NewFrame()
} }
// Update game controllers (if available) // Update game controllers (if available)
ImGui_ImplWin32_UpdateGameControllers(); ImGui_ImplWin32_UpdateGamepads();
} }
// Allow compilation with old Windows SDK. MinGW doesn't have default _WIN32_WINNT/WINVER versions. // Allow compilation with old Windows SDK. MinGW doesn't have default _WIN32_WINNT/WINVER versions.

2
imgui_draw.cpp
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@ -1361,7 +1361,7 @@ ImFontConfig::ImFontConfig()
FontDataOwnedByAtlas = true; FontDataOwnedByAtlas = true;
FontNo = 0; FontNo = 0;
SizePixels = 0.0f; SizePixels = 0.0f;
OversampleH = 3; OversampleH = 3; // FIXME: 2 may be a better default?
OversampleV = 1; OversampleV = 1;
PixelSnapH = false; PixelSnapH = false;
GlyphExtraSpacing = ImVec2(0.0f, 0.0f); GlyphExtraSpacing = ImVec2(0.0f, 0.0f);

14
imgui_internal.h
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@ -349,13 +349,13 @@ enum ImGuiSeparatorFlags_
// This is going to be exposed in imgui.h when stabilized enough. // This is going to be exposed in imgui.h when stabilized enough.
enum ImGuiItemFlags_ enum ImGuiItemFlags_
{ {
ImGuiItemFlags_NoTabStop = 1 << 0, // false ImGuiItemFlags_NoTabStop = 1 << 0, // false
ImGuiItemFlags_ButtonRepeat = 1 << 1, // false // Button() will return true multiple times based on io.KeyRepeatDelay and io.KeyRepeatRate settings. ImGuiItemFlags_ButtonRepeat = 1 << 1, // false // Button() will return true multiple times based on io.KeyRepeatDelay and io.KeyRepeatRate settings.
ImGuiItemFlags_Disabled = 1 << 2, // false // [BETA] Disable interactions but doesn't affect visuals yet. See github.com/ocornut/imgui/issues/211 ImGuiItemFlags_Disabled = 1 << 2, // false // [BETA] Disable interactions but doesn't affect visuals yet. See github.com/ocornut/imgui/issues/211
ImGuiItemFlags_NoNav = 1 << 3, // false ImGuiItemFlags_NoNav = 1 << 3, // false
ImGuiItemFlags_NoNavDefaultFocus = 1 << 4, // false ImGuiItemFlags_NoNavDefaultFocus = 1 << 4, // false
ImGuiItemFlags_SelectableDontClosePopup = 1 << 5, // false // MenuItem/Selectable() automatically closes current Popup window ImGuiItemFlags_SelectableDontClosePopup = 1 << 5, // false // MenuItem/Selectable() automatically closes current Popup window
ImGuiItemFlags_Default_ = 0 ImGuiItemFlags_Default_ = 0
}; };
// Storage for LastItem data // Storage for LastItem data

7
misc/fonts/README.txt
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@ -25,7 +25,7 @@ If you have other loading/merging/adding fonts, you can post on the Dear ImGui "
- Building Custom Glyph Ranges - Building Custom Glyph Ranges
- Embedding Fonts in Source Code - Embedding Fonts in Source Code
- Credits/Licences for fonts included in this folder - Credits/Licences for fonts included in this folder
- Links, Other fonts - Fonts Links
--------------------------------------- ---------------------------------------
@ -106,11 +106,14 @@ Load .TTF/.OTF file with:
For advanced options create a ImFontConfig structure and pass it to the AddFont function (it will be copied internally): For advanced options create a ImFontConfig structure and pass it to the AddFont function (it will be copied internally):
ImFontConfig config; ImFontConfig config;
config.OversampleH = 3; config.OversampleH = 2;
config.OversampleV = 1; config.OversampleV = 1;
config.GlyphExtraSpacing.x = 1.0f; config.GlyphExtraSpacing.x = 1.0f;
ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, &config); ImFont* font = io.Fonts->AddFontFromFileTTF("font.ttf", size_pixels, &config);
Read about oversampling here:
https://github.com/nothings/stb/blob/master/tests/oversample
If you have very large number of glyphs or multiple fonts, the texture may become too big for your graphics API. If you have very large number of glyphs or multiple fonts, the texture may become too big for your graphics API.
The typical result of failing to upload a texture is if every glyphs appears as white rectangles. The typical result of failing to upload a texture is if every glyphs appears as white rectangles.
In particular, using a large range such as GetGlyphRangesChineseSimplifiedCommon() is not recommended unless you In particular, using a large range such as GetGlyphRangesChineseSimplifiedCommon() is not recommended unless you