1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
|
// See LICENSE file for copyright and license details.
use x11::xlib;
use x11::xlib::{
Window,
XWindowAttributes,
XGetWindowAttributes,
XDefaultScreenOfDisplay,
XMoveWindow, XMoveResizeWindow,
XDisplayHeight, XDisplayWidth, XDefaultScreen,
XA_ATOM, Atom, PropModeReplace,
XSetInputFocus,
XSetWindowBorder,
IsViewable, RevertToParent, CurrentTime,
XEvent, XSendEvent, XClientMessageEvent,
ClientMessage,ClientMessageData, NoEventMask,
XChangeProperty,
};
use std::ptr;
use std::mem::uninitialized;
use std::mem::transmute;
use std::cmp::{max};
use safe_x11::{screen_ratio,get_color};
/// Representation of [`xlib::Window`](../../x11/xlib/type.Window.html)
pub struct XWindow {
display: *mut xlib::Display,
/// xlib::Window that wraps this struct.
pub inner: Window,
fullscreen: bool,
}
fn fixed_with_ratio(x: i32, ratio: f32) -> i32 {
let fx = x as f32;
let fixed = fx * ratio;
fixed as i32
}
impl XWindow {
/// Generate a reference to the window in certain display. This will return
/// `None` if the window is the root window.
pub fn new(d: *mut xlib::Display, w: Window) -> Option<XWindow> {
if w != 0 {
Some(XWindow {
display: d,
inner: w,
fullscreen: false,
})
} else {
None
}
}
/// Set the border width To the window.
pub fn set_border_width(&self, size: u32) {
unsafe { xlib::XSetWindowBorderWidth(self.display, self.inner, size) };
}
/// clients receiving a WM_DELETE_WINDOW message should behave as if
/// the user selected "delete window" from a hypothetical menu and
/// also perform any confirmation dialog with the user.
pub fn delete(&self) {
let mut ev: XClientMessageEvent = unsafe { uninitialized() };
ev.type_ = ClientMessage;
ev.window = self.inner;
ev.format = 32;
ev.message_type = 0; // WM_PROTOCOLS
ev.data = ClientMessageData::new();
ev.data.set_long(0, 0); // WM_DELETE_WINDOW
ev.data.set_long(1, CurrentTime as i64);
let mut event = XEvent::from(ev);
unsafe { XSendEvent(self.display, self.inner, 0, NoEventMask, &mut event); }
}
/// Sets the border color to the selected window
pub fn set_border_color<T: Into<Vec<u8>>>(&self, color: T) {
let c = get_color(self.display, color);
unsafe { XSetWindowBorder(self.display, self.inner, c); }
}
/// Raises a window.
pub fn raise(&self) {
unsafe { xlib::XRaiseWindow(self.display, self.inner); }
}
/// Register input events on some [`xlib::Window`](../../x11/xlib/type.Window.html)
///
/// # Example
///
/// if we want to handle when a pointer enter into a window rectangle, we
/// should do something like:
///
/// ```
/// use x11::xlib;
///
/// let display = open_display("").unwrap();
/// // Raw window
/// let window = 0xc00022;
///
/// window.select_input(xlib::EnterWindowMask);
/// ```
pub fn select_input(&self, mask: i64) {
unsafe { xlib::XSelectInput(self.display, self.inner, mask); }
}
/// Returns the window attributes from certain window.
pub fn attributes(&self) -> XWindowAttributes {
unsafe {
let mut attrptr: XWindowAttributes = uninitialized();
XGetWindowAttributes(self.display, self.inner, &mut attrptr);
attrptr
}
}
/// Moves the window given an offset from where it is.
pub fn move_offset(&self, xoffset: i32, yoffset: i32) {
unsafe {
let mut attributes: XWindowAttributes = uninitialized();
XGetWindowAttributes(self.display, self.inner, &mut attributes);
XMoveWindow(self.display, self.inner,
attributes.x + xoffset,
attributes.y + yoffset);
}
}
/// Moves the window to a particular coord in the screen.
pub fn move_to(&self, x: i32, y: i32) -> Result<(), &str> {
let screen = unsafe {
let s = XDefaultScreenOfDisplay(self.display);
ptr::read(s)
};
if 0 > x && x <= screen.width || 0 > y && y <= screen.height {
Err("Cannot move the window outside the screen!")
} else {
unsafe { XMoveWindow(self.display, self.inner, x, y) };
Ok(())
}
}
/// Move and resize the window in one step
pub fn move_resize(&self, x:i32, y: i32, w: u32, h: u32) {
unsafe {
XMoveResizeWindow(self.display, self.inner, x, y, w, h);
}
}
/// Resizes the window a fixed amount within the height and width.
pub fn resize(&self, w: i32, h: i32) {
let ratio = screen_ratio(self.display);
let attrs = self.attributes();
unsafe {
let ww: u32 = max(1, (attrs.width + fixed_with_ratio(w, ratio)) as u32);
let wh: u32 = max(1, (attrs.height + fixed_with_ratio(h, ratio)) as u32);
xlib::XResizeWindow(self.display, self.inner,
ww, wh);
}
}
/// Raise the focus of the window and set a border.
pub fn focus(&self) {
let attrs = self.attributes();
if attrs.map_state == IsViewable {
unsafe {
XSetInputFocus(self.display, self.inner,
RevertToParent, CurrentTime)
};
}
self.raise();
self.set_border_width(1);
self.set_border_color("red");
}
/// Give a black border.
pub fn unfocus(&self) {
self.set_border_width(1);
self.set_border_color("black");
}
/// Fullscreen toggle
pub fn toggle_fullscreen(&mut self, wm_state_atom: Atom,
fs_atom: Atom, fullscreen: bool) {
let screen = unsafe { XDefaultScreen(self.display) };
let dh: u32 = unsafe { XDisplayHeight(self.display, screen) as u32 };
let dw: u32 = unsafe { XDisplayWidth(self.display, screen) as u32 };
if fullscreen != self.fullscreen {
self.fullscreen = fullscreen;
let fs_atom_slice: &[Atom; 1] = &[fs_atom];
let fs_atom_ptr: *const u8 = unsafe { transmute(fs_atom_slice) };
println!("Changing property!");
unsafe {
XChangeProperty(self.display, self.inner, wm_state_atom,
XA_ATOM, 32, PropModeReplace, fs_atom_ptr,
fullscreen as i32);
}
}
if fullscreen {
println!("resizing!");
self.move_resize(0, 0, dw, dh);
self.set_border_width(0);
} else {
self.set_border_width(1);
}
}
}
|
