/* Screenshot Window Sizer for Gnome Shell
*
* Copyright (c) 2013 Owen Taylor <[email protected]>
* Copyright (c) 2013 Richard Hughes <[email protected]>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
const Gio = imports.gi.Gio;
const Meta = imports.gi.Meta;
const Shell = imports.gi.Shell;
const St = imports.gi.St;
const Main = imports.ui.main;
const Tweener = imports.ui.tweener;
const ExtensionUtils = imports.misc.extensionUtils;
const Me = ExtensionUtils.getCurrentExtension();
const Convenience = Me.imports.convenience;
const MESSAGE_FADE_TIME = 2;
let text, button;
function hideMessage() {
text.destroy();
text = null;
}
function flashMessage(message) {
if (!text) {
text = new St.Label({ style_class: 'screenshot-sizer-message' });
Main.uiGroup.add_actor(text);
}
Tweener.removeTweens(text);
text.text = message;
text.opacity = 255;
let monitor = Main.layoutManager.primaryMonitor;
text.set_position(monitor.x + Math.floor(monitor.width / 2 - text.width / 2),
monitor.y + Math.floor(monitor.height / 2 - text.height / 2));
Tweener.addTween(text,
{ opacity: 0,
time: MESSAGE_FADE_TIME,
transition: 'easeOutQuad',
onComplete: hideMessage });
}
let SIZES = [
[624, 351],
[800, 450],
[1024, 576],
[1200, 675],
[1600, 900]
];
function cycleScreenshotSizes(display, screen, window, binding) {
// Probably this isn't useful with 5 sizes, but you can decrease instead
// of increase by holding down shift.
let modifiers = binding.get_modifiers();
let backwards = (modifiers & Meta.VirtualModifier.SHIFT_MASK) != 0;
// Unmaximize first
if (window.maximized_horizontally || window.maximizedVertically)
window.unmaximize(Meta.MaximizeFlags.HORIZONTAL | Meta.MaximizeFlags.VERTICAL);
let workArea = window.get_work_area_current_monitor();
let outerRect = window.get_frame_rect();
// Double both axes if on a hidpi display
let scaleFactor = St.ThemeContext.get_for_stage(global.stage).scale_factor;
let scaledSizes = SIZES.map(function(size) {
return size.map(function(wh) {
return wh * scaleFactor;
});
});
// Find the nearest 16:9 size for the current window size
let nearestIndex;
let nearestError;
for (let i = 0; i < scaledSizes.length; i++) {
let [width, height] = scaledSizes[i];
// ignore sizes bigger than the workArea
if (width > workArea.width || height > workArea.height)
continue;
// get the best initial window size
let error = Math.abs(width - outerRect.width) + Math.abs(height - outerRect.height);
if (nearestIndex == null || error < nearestError) {
nearestIndex = i;
nearestError = error;
}
}
// get the next size up or down from ideal
let newIndex = (nearestIndex + (backwards ? -1 : 1)) % scaledSizes.length;
let newWidth, newHeight;
[newWidth, newHeight] = scaledSizes[newIndex];
if (newWidth > workArea.width || newHeight > workArea.height)
[newWidth, newHeight] = scaledSizes[0];
// Push the window onscreen if it would be resized offscreen
let newX = outerRect.x;
let newY = outerRect.y;
if (newX + newWidth > workArea.x + workArea.width)
newX = Math.max(workArea.x + workArea.width - newWidth);
if (newY + newHeight > workArea.y + workArea.height)
newY = Math.max(workArea.y + workArea.height - newHeight);
window.move_resize_frame(true, newX, newY, newWidth, newHeight);
let newOuterRect = window.get_frame_rect();
let message = '%d×%d'.format(
(newOuterRect.width / scaleFactor),
(newOuterRect.height / scaleFactor));
// The new size might have been constrained by geometry hints (e.g. for
// a terminal) - in that case, include the actual ratio to the message
// we flash
let actualNumerator = (newOuterRect.width / newOuterRect.height) * 9;
if (Math.abs(actualNumerator - 16) > 0.01)
message += ' (%.2f:9)'.format(actualNumerator);
flashMessage(message);
}
function init() {
}
function enable() {
Main.wm.addKeybinding('cycle-screenshot-sizes',
Convenience.getSettings(),
Meta.KeyBindingFlags.PER_WINDOW | Meta.KeyBindingFlags.REVERSES,
Shell.ActionMode.NORMAL,
cycleScreenshotSizes);
}
function disable() {
Main.wm.removeKeybinding('cycle-screenshot-sizes');
}