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[API] Make GLFW to check availability of features

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SpaiR committed 2021-03-30 11:38:54 +03:00
1 parent d1e264a663
commit e8678ef62c
2 files changed
+70 -15
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imgui-lwjgl3/src/main/java/imgui/gl3/ImGuiImplGl3.java
+1 -1
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@@ -21,7 +21,7 @@ import static org.lwjgl.opengl.GL32.*;
/**
* This class is a straightforward port of the
* <a href="https://raw.githubusercontent.com/ocornut/imgui/05bc204dbd80dfebb3dab1511caf1cb980620c76/examples/imgui_impl_opengl3.cpp">imgui_impl_opengl3.cpp</a>.
* <a href="https://raw.githubusercontent.com/ocornut/imgui/256594575d95d56dda616c544c509740e74906b4/backends/imgui_impl_opengl3.cpp">imgui_impl_opengl3.cpp</a>.
* <p>
* It do support a backup and restoring of the GL state in the same way the original Dear ImGui code does.
* Some of the very specific OpenGL variables may be ignored here,
imgui-lwjgl3/src/main/java/imgui/glfw/ImGuiImplGlfw.java
+69 -14
View File
@@ -38,17 +38,28 @@ import static org.lwjgl.system.MemoryUtil.NULL;
/**
* This class is a straightforward port of the
* <a href="https://raw.githubusercontent.com/ocornut/imgui/05bc204dbd80dfebb3dab1511caf1cb980620c76/examples/imgui_impl_glfw.cpp">imgui_impl_glfw.cpp</a>.
* <a href="https://raw.githubusercontent.com/ocornut/imgui/256594575d95d56dda616c544c509740e74906b4/backends/imgui_impl_glfw.cpp">imgui_impl_glfw.cpp</a>.
* <p>
* It supports clipboard, gamepad, mouse and keyboard in the same way the original Dear ImGui code does. You can copy-paste this class in your codebase and
* modify the rendering routine in the way you'd like.
*/
public class ImGuiImplGlfw {
protected static final boolean IS_WINDOWS = System.getProperty("os.name", "generic").toLowerCase().contains("win");
private static final String OS = System.getProperty("os.name", "generic").toLowerCase();
protected static final boolean IS_WINDOWS = OS.contains("win");
protected static final boolean IS_APPLE = OS.contains("mac") || OS.contains("darwin");
// Pointer of the current GLFW window
private long windowPtr;
// Some features may be available only from a specific version
private boolean glfwHawWindowTopmost;
private boolean glfwHasWindowAlpha;
private boolean glfwHasPerMonitorDpi;
private boolean glfwHasFocusWindow;
private boolean glfwHasFocusOnShow;
private boolean glfwHasMonitorWorkArea;
private boolean glfwHasOsxWindowPosFix;
// For application window properties
private final int[] winWidth = new int[1];
private final int[] winHeight = new int[1];
@@ -167,6 +178,8 @@ public class ImGuiImplGlfw {
public boolean init(final long windowId, final boolean installCallbacks) {
this.windowPtr = windowId;
detectGlfwVersionAndEnabledFeatures();
final ImGuiIO io = ImGui.getIO();
io.addBackendFlags(ImGuiBackendFlags.HasMouseCursors | ImGuiBackendFlags.HasSetMousePos | ImGuiBackendFlags.PlatformHasViewports);
@@ -307,6 +320,22 @@ public class ImGuiImplGlfw {
}
}
private void detectGlfwVersionAndEnabledFeatures() {
final int[] major = new int[1];
final int[] minor = new int[1];
final int[] rev = new int[1];
glfwGetVersion(major, minor, rev);
final int version = major[0] * 1000 + minor[0] * 100 + rev[0] * 10;
glfwHawWindowTopmost = version >= 3200;
glfwHasWindowAlpha = version >= 3300;
glfwHasPerMonitorDpi = version >= 3300;
glfwHasFocusWindow = version >= 3200;
glfwHasFocusOnShow = version >= 3300;
glfwHasMonitorWorkArea = version >= 3300;
}
private void updateMousePosAndButtons() {
final ImGuiIO io = ImGui.getIO();
@@ -459,7 +488,9 @@ public class ImGuiImplGlfw {
final float mainSizeX = vidMode.width();
final float mainSizeY = vidMode.height();
glfwGetMonitorWorkarea(monitor, monitorWorkAreaX, monitorWorkAreaY, monitorWorkAreaWidth, monitorWorkAreaHeight);
if (glfwHasMonitorWorkArea) {
glfwGetMonitorWorkarea(monitor, monitorWorkAreaX, monitorWorkAreaY, monitorWorkAreaWidth, monitorWorkAreaHeight);
}
float workPosX = 0;
float workPosY = 0;
@@ -467,7 +498,7 @@ public class ImGuiImplGlfw {
float workSizeY = 0;
// Workaround a small GLFW issue reporting zero on monitor changes: https://github.com/glfw/glfw/pull/1761
if (monitorWorkAreaWidth[0] > 0 && monitorWorkAreaHeight[0] > 0) {
if (glfwHasMonitorWorkArea && monitorWorkAreaWidth[0] > 0 && monitorWorkAreaHeight[0] > 0) {
workPosX = monitorWorkAreaX[0];
workPosY = monitorWorkAreaY[0];
workSizeX = monitorWorkAreaWidth[0];
@@ -476,7 +507,9 @@ public class ImGuiImplGlfw {
// Warning: the validity of monitor DPI information on Windows depends on the application DPI awareness settings,
// which generally needs to be set in the manifest or at runtime.
glfwGetMonitorContentScale(monitor, monitorContentScaleX, monitorContentScaleY);
if (glfwHasPerMonitorDpi) {
glfwGetMonitorContentScale(monitor, monitorContentScaleX, monitorContentScaleY);
}
final float dpiScale = monitorContentScaleX[0];
platformIO.pushMonitors(mainPosX, mainPosY, mainSizeX, mainSizeY, workPosX, workPosY, workSizeX, workSizeY, dpiScale);
@@ -537,9 +570,13 @@ public class ImGuiImplGlfw {
// With GLFW 3.3, the hint GLFW_FOCUS_ON_SHOW fixes this problem
glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
glfwWindowHint(GLFW_FOCUSED, GLFW_FALSE);
glfwWindowHint(GLFW_FOCUS_ON_SHOW, GLFW_FALSE);
if (glfwHasFocusOnShow) {
glfwWindowHint(GLFW_FOCUS_ON_SHOW, GLFW_FALSE);
}
glfwWindowHint(GLFW_DECORATED, vp.hasFlags(ImGuiViewportFlags.NoDecoration) ? GLFW_FALSE : GLFW_TRUE);
glfwWindowHint(GLFW_FLOATING, vp.hasFlags(ImGuiViewportFlags.TopMost) ? GLFW_TRUE : GLFW_FALSE);
if (glfwHawWindowTopmost) {
glfwWindowHint(GLFW_FLOATING, vp.hasFlags(ImGuiViewportFlags.TopMost) ? GLFW_TRUE : GLFW_FALSE);
}
data.window = glfwCreateWindow((int) vp.getSizeX(), (int) vp.getSizeY(), "No Title Yet", NULL, windowPtr);
data.windowOwned = true;
@@ -628,10 +665,24 @@ public class ImGuiImplGlfw {
}
}
private static final class SetWindowSizeFunction extends ImPlatformFuncViewportImVec2 {
private final class SetWindowSizeFunction extends ImPlatformFuncViewportImVec2 {
private final int[] x = new int[1];
private final int[] y = new int[1];
private final int[] width = new int[1];
private final int[] height = new int[1];
@Override
public void accept(final ImGuiViewport vp, final ImVec2 imVec2) {
final ImGuiViewportDataGlfw data = (ImGuiViewportDataGlfw) vp.getPlatformUserData();
// Native OS windows are positioned from the bottom-left corner on macOS, whereas on other platforms they are
// positioned from the upper-left corner. GLFW makes an effort to convert macOS style coordinates, however it
// doesn't handle it when changing size. We are manually moving the window in order for changes of size to be based
// on the upper-left corner.
if (IS_APPLE && !glfwHasOsxWindowPosFix) {
glfwGetWindowPos(data.window, x, y);
glfwGetWindowSize(data.window, width, height);
glfwSetWindowPos(data.window, x[0], y[0] - height[0] + (int) imVec2.y);
}
data.ignoreWindowSizeEventFrame = ImGui.getFrameCount();
glfwSetWindowSize(data.window, (int) imVec2.x, (int) imVec2.y);
}
@@ -645,11 +696,13 @@ public class ImGuiImplGlfw {
}
}
private static final class SetWindowFocusFunction extends ImPlatformFuncViewport {
private final class SetWindowFocusFunction extends ImPlatformFuncViewport {
@Override
public void accept(final ImGuiViewport vp) {
final ImGuiViewportDataGlfw data = (ImGuiViewportDataGlfw) vp.getPlatformUserData();
glfwFocusWindow(data.window);
if (glfwHasFocusWindow) {
final ImGuiViewportDataGlfw data = (ImGuiViewportDataGlfw) vp.getPlatformUserData();
glfwFocusWindow(data.window);
}
}
}
@@ -669,11 +722,13 @@ public class ImGuiImplGlfw {
}
}
private static final class SetWindowAlphaFunction extends ImPlatformFuncViewportFloat {
private final class SetWindowAlphaFunction extends ImPlatformFuncViewportFloat {
@Override
public void accept(final ImGuiViewport vp, final float f) {
final ImGuiViewportDataGlfw data = (ImGuiViewportDataGlfw) vp.getPlatformUserData();
glfwSetWindowOpacity(data.window, f);
if (glfwHasWindowAlpha) {
final ImGuiViewportDataGlfw data = (ImGuiViewportDataGlfw) vp.getPlatformUserData();
glfwSetWindowOpacity(data.window, f);
}
}
}