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Added glfwCreateStandardCursor.

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This function allows the creation of cursor objects using one of several
standard cursor shapes from the current system cursor theme.
This commit is contained in:
Camilla Berglund
2014-09-02 16:52:16 +02:00
parent 1495134398
commit 2a1375e97c
11 changed files with 246 additions and 8 deletions
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src/x11_window.c
+46 -1
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@@ -27,6 +27,8 @@
#include "internal.h"
#include <X11/cursorfont.h>
#include <sys/select.h>
#include <string.h>
@@ -66,6 +68,29 @@ static Bool isFrameExtentsEvent(Display* display, XEvent* event, XPointer pointe
event->xproperty.atom == _glfw.x11.NET_FRAME_EXTENTS;
}
// Translates a GLFW standard cursor to a font cursor shape
//
static int translateCursorShape(int shape)
{
switch (shape)
{
case GLFW_ARROW_CURSOR:
return XC_arrow;
case GLFW_IBEAM_CURSOR:
return XC_xterm;
case GLFW_CROSSHAIR_CURSOR:
return XC_crosshair;
case GLFW_HAND_CURSOR:
return XC_hand1;
case GLFW_HRESIZE_CURSOR:
return XC_sb_h_double_arrow;
case GLFW_VRESIZE_CURSOR:
return XC_sb_v_double_arrow;
}
return 0;
}
// Translates an X event modifier state mask
//
static int translateState(int state)
@@ -1731,12 +1756,32 @@ int _glfwPlatformCreateCursor(_GLFWcursor* cursor,
int xhot, int yhot)
{
cursor->x11.handle = _glfwCreateCursor(image, xhot, yhot);
if (cursor->x11.handle == None)
if (!cursor->x11.handle)
return GL_FALSE;
return GL_TRUE;
}
int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape)
{
const unsigned int native = translateCursorShape(shape);
if (!native)
{
_glfwInputError(GLFW_INVALID_ENUM, "X11: Invalid standard cursor");
return GL_FALSE;
}
cursor->x11.handle = XCreateFontCursor(_glfw.x11.display, native);
if (!cursor->x11.handle)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"X11: Failed to create standard cursor");
return GL_FALSE;
}
return GL_TRUE;
}
void _glfwPlatformDestroyCursor(_GLFWcursor* cursor)
{
if (cursor->x11.handle)