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Add window hints for initial position

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This adds window hints for the initial position, in screen coordinates,
of a window.  The special value GLFW_ANY_POSITION means the window
manager will be allowed to position the window.

It is not possible to set window positions on Wayland and GLFW will
always behave as if these hints are set to GLFW_ANY_POSITION.

Fixes #1603
Fixes #1747
This commit is contained in:
Camilla Löwy
2021-10-26 14:25:03 +02:00
parent 7d73629e50
commit 0f9a9578f3
12 changed files with 138 additions and 31 deletions
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22
include/GLFW/glfw3.h
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@@ -927,6 +927,18 @@ extern "C" {
*/
#define GLFW_MOUSE_PASSTHROUGH 0x0002000D
/*! @brief Initial position x-coordinate window hint.
*
* Initial position x-coordinate [window hint](@ref GLFW_POSITION_X).
*/
#define GLFW_POSITION_X 0x0002000E
/*! @brief Initial position y-coordinate window hint.
*
* Initial position y-coordinate [window hint](@ref GLFW_POSITION_Y).
*/
#define GLFW_POSITION_Y 0x0002000F
/*! @brief Framebuffer bit depth hint.
*
* Framebuffer bit depth [hint](@ref GLFW_RED_BITS).
@@ -1152,6 +1164,8 @@ extern "C" {
#define GLFW_ANGLE_PLATFORM_TYPE_VULKAN 0x00037007
#define GLFW_ANGLE_PLATFORM_TYPE_METAL 0x00037008
#define GLFW_ANY_POSITION 0x80000000
/*! @defgroup shapes Standard cursor shapes
* @brief Standard system cursor shapes.
*
@@ -3036,10 +3050,10 @@ GLFWAPI void glfwWindowHintString(int hint, const char* value);
* OpenGL or OpenGL ES context.
*
* By default, newly created windows use the placement recommended by the
* window system. To create the window at a specific position, make it
* initially invisible using the [GLFW_VISIBLE](@ref GLFW_VISIBLE_hint) window
* hint, set its [position](@ref window_pos) and then [show](@ref window_hide)
* it.
* window system. To create the window at a specific position, set the @ref
* GLFW_POSITION_X and @ref GLFW_POSITION_Y window hints before creation. To
* restore the default behavior, set either or both hints back to
* `GLFW_ANY_POSITION`.
*
* As long as at least one full screen window is not iconified, the screensaver
* is prohibited from starting.