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Move all cursor positioning to platform code

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Due to Wayland, shared code cannot rely on cursor positioning being
supported by the underlying platform.

This implicitly fixes #617 as it moves cursor centering into
_glfwPlatformSetCursorMode, thus separating it from the stale value of
_glfw.cursorWindow.

Fixes #617.
This commit is contained in:
Camilla Berglund
2016-05-25 14:06:02 +02:00
parent 0e846883bf
commit 797ee8d8e3
12 changed files with 205 additions and 182 deletions
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src/x11_window.c
+37 -23
View File
@@ -387,6 +387,15 @@ static char** parseUriList(char* text, int* count)
return paths;
}
// Centers the cursor over the window client area
//
static void centerCursor(_GLFWwindow* window)
{
int width, height;
_glfwPlatformGetWindowSize(window, &width, &height);
_glfwPlatformSetCursorPos(window, width / 2.0, height / 2.0);
}
// Create the X11 window (and its colormap)
//
static GLFWbool createWindow(_GLFWwindow* window,
@@ -1158,12 +1167,15 @@ static void processEvent(XEvent *event)
if (_glfw.cursorWindow != window)
return;
_glfwInputCursorMotion(window,
x - window->x11.lastCursorPosX,
y - window->x11.lastCursorPosY);
const int dx = x - window->x11.lastCursorPosX;
const int dy = y - window->x11.lastCursorPosY;
_glfwInputCursorPos(window,
window->virtualCursorPosX + dx,
window->virtualCursorPosY + dy);
}
else
_glfwInputCursorMotion(window, x, y);
_glfwInputCursorPos(window, x, y);
}
window->x11.lastCursorPosX = x;
@@ -1265,7 +1277,7 @@ static void processEvent(XEvent *event)
int x, y;
_glfwPlatformGetWindowPos(window, &x, &y);
_glfwInputCursorMotion(window, absX - x, absY - y);
_glfwInputCursorPos(window, absX - x, absY - y);
// Reply that we are ready to copy the dragged data
XEvent reply;
@@ -1517,6 +1529,8 @@ int _glfwPlatformCreateWindow(_GLFWwindow* window,
updateWindowMode(window);
if (!acquireMonitor(window))
return GLFW_FALSE;
centerCursor(window);
}
return GLFW_TRUE;
@@ -1999,11 +2013,7 @@ void _glfwPlatformPollEvents(void)
_GLFWwindow* window = _glfw.cursorWindow;
if (window && window->cursorMode == GLFW_CURSOR_DISABLED)
{
int width, height;
_glfwPlatformGetWindowSize(window, &width, &height);
_glfwPlatformSetCursorPos(window, width / 2, height / 2);
}
centerCursor(window);
}
void _glfwPlatformWaitEvents(void)
@@ -2082,31 +2092,35 @@ void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode)
{
if (mode == GLFW_CURSOR_DISABLED)
{
_glfwPlatformGetCursorPos(window,
&_glfw.x11.restoreCursorPosX,
&_glfw.x11.restoreCursorPosY);
centerCursor(window);
XGrabPointer(_glfw.x11.display, window->x11.handle, True,
ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
GrabModeAsync, GrabModeAsync,
window->x11.handle, _glfw.x11.cursor, CurrentTime);
}
else
else if (window->cursorMode == GLFW_CURSOR_DISABLED)
{
XUngrabPointer(_glfw.x11.display, CurrentTime);
_glfwPlatformSetCursorPos(window,
_glfw.x11.restoreCursorPosX,
_glfw.x11.restoreCursorPosY);
}
if (mode == GLFW_CURSOR_NORMAL)
{
if (window->cursor)
{
XDefineCursor(_glfw.x11.display, window->x11.handle,
window->cursor->x11.handle);
}
else
XUndefineCursor(_glfw.x11.display, window->x11.handle);
}
else
if (mode == GLFW_CURSOR_NORMAL)
{
if (window->cursor)
{
XDefineCursor(_glfw.x11.display, window->x11.handle,
_glfw.x11.cursor);
window->cursor->x11.handle);
}
else
XUndefineCursor(_glfw.x11.display, window->x11.handle);
}
else
XDefineCursor(_glfw.x11.display, window->x11.handle, _glfw.x11.cursor);
}
const char* _glfwPlatformGetKeyName(int key, int scancode)