Iosevka/snapshot/getsnap.js
2016-02-13 15:06:53 +08:00

87 lines
2.5 KiB
JavaScript

var app = require('app');
var BrowserWindow = require('browser-window');
var argv = require('yargs').argv;
var fs = require('fs');
var cp = require('child_process');
var mainWindow = null;
var allWindowClosed = false;
var pendingTasks = 0;
var zoom = 2
function checkQuit(){
if(allWindowClosed && pendingTasks == 0) app.quit();
}
app.on('window-all-closed', function() {
allWindowClosed = true;
checkQuit()
});
function combineImages(images, outfile, width, height, background, padding){
var command = 'convert ' + images.join(' ') + ' -append -crop ' + width + 'x' + height + '+0+0 +repage -bordercolor rgb(52,52,53) -trim ' + outfile;
console.log(command);
cp.exec(command, function(err, stdout, stderr){
images.forEach(function(file){
fs.unlinkSync(file);
});
pendingTasks -= 1;
checkQuit();
})
};
var ipc = require('electron').ipcMain;
function GOTO(phase){ currentPhase = phase };
var phases = {
prepare : function(event, arg){
console.log(arg);
GOTO(phases['receive-rect']);
},
'receive-rect' : function(event, rect){
pendingTasks += 1
rect = JSON.parse(JSON.stringify(rect));
var file = argv.dir + '/' + rect.name + '.png';
var j = 0;
var totalFiles = Math.ceil(rect.height / rect.windowHeight);
var pendingFiles = totalFiles;
function doneFileWrite(){
pendingFiles -= 1;
if(pendingFiles <= 0) {
var images = [];
for(var k = 0; k < j; k++){
images.push(argv.dir + '/' + rect.name + '.' + k + '.png')
}
combineImages(images, file, rect.windowWidth * rect.dpi, rect.height * rect.dpi, rect.background, rect.padding);
}
}
function step(){
event.sender.send('scroll', rect.y + j * rect.windowHeight);
GOTO(function(event){
mainWindow.capturePage(function(image){
fs.writeFile(argv.dir + '/' + rect.name + '.' + j + '.png', image.toPng(), doneFileWrite);
j += 1;
if(j >= totalFiles) { // Move to next image
event.sender.send('complete', file);
GOTO(phases['receive-rect']);
} else {
step()
}
})
})
};
step()
}
};
var currentPhase = phases['prepare'];
ipc.on('snapshot', function(){
currentPhase.apply(this, arguments)
});
ipc.on('log', function(event, arg){
console.log(arg);
})
app.on('ready', function() {
mainWindow = new BrowserWindow({width: 64 * 16 * zoom, height: 1024 * zoom, x: 5000, y: 5000, zoomFactor: zoom});
mainWindow.loadURL('file://' + __dirname + '/index.html');
//mainWindow.hide();
});