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https://github.com/danbulant/node-x11
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CreateGC request
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sidorares
parent
8e5758238f
commit
e62bc74750
2 changed files with 116 additions and 22 deletions
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@ -1,24 +1,82 @@
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var valueMask = {
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backgroundPixmap: 0x00000001,
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backgroundPixel : 0x00000002,
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borderPixmap : 0x00000004,
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borderPixel : 0x00000008,
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bitGrawity : 0x00000010,
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winGravity : 0x00000020,
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backingStore : 0x00000040,
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backingPlanes : 0x00000080,
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backingPixel : 0x00000100,
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overrideRedirect: 0x00000200,
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saveUnder : 0x00000400,
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eventMask : 0x00000800,
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doNotPropagateMask: 0x00001000,
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colormap : 0x00002000,
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cursor : 0x00004000
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CreateWindow: {
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backgroundPixmap: 0x00000001,
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backgroundPixel : 0x00000002,
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borderPixmap : 0x00000004,
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borderPixel : 0x00000008,
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bitGrawity : 0x00000010,
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winGravity : 0x00000020,
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backingStore : 0x00000040,
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backingPlanes : 0x00000080,
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backingPixel : 0x00000100,
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overrideRedirect: 0x00000200,
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saveUnder : 0x00000400,
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eventMask : 0x00000800,
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doNotPropagateMask: 0x00001000,
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colormap : 0x00002000,
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cursor : 0x00004000
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},
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CreateGC: {
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'function' : 0x00000001, // TODO: alias? _function?
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planeMask : 0x00000002,
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foreground : 0x00000004,
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background : 0x00000008,
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lineWidth : 0x00000010,
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lineStyle : 0x00000020,
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capStyle : 0x00000040,
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joinStyle : 0x00000080,
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fillStyle : 0x00000100,
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fillRule : 0x00000200,
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tile : 0x00000400,
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stipple : 0x00000800,
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tileStippleXOrigin: 0x00001000,
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tileStippleYOrigin: 0x00002000,
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font : 0x00004000,
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subwindowMode: 0x00008000,
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graphicsExposures: 0x00010000,
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clipXOrigin : 0x00020000,
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clipYOrigin : 0x00040000,
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clipMask : 0x00080000,
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dashOffset : 0x00100000,
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dashes : 0x00200000,
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arcMode : 0x00400000
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}
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};
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var valueMaskNames = {};
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for (var m in valueMask) {
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valueMaskNames[valueMask[m]] = m;
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var valueMaskName = {};
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for (var req in valueMask) {
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var masks = valueMask[req];
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var names = valueMaskName[req] = {};
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for (var m in masks)
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names[masks[m]] = m;
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}
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function packValueMask(reqname, values)
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{
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var bitmask = 0;
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var masksList = [];
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var reqValueMask = valueMask[reqname];
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var reqValueMaskName = valueMaskName[reqname];
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if (!reqValueMask)
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throw new Error(reqname + ': no value mask description');
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for (var v in values)
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{
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var valueBit = reqValueMask[v];
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if (!valueBit)
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throw new Error('CreateWindow: incorrect value param ' + v);
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masksList.push(valueBit);
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bitmask |= valueBit;
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}
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masksList.sort();
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var args = [];
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for (m in masksList)
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{
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valueName = reqValueMaskName[masksList[m]];
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args.push( values[valueName] );
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}
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return [bitmask, args]
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}
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/*
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@ -51,7 +109,7 @@ module.exports = {
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// TODO: ??? there is depth field in xproto, but xlib just sets it to zero
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var depth = 0;
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var packetLength = 8 + Object.keys(values).length;
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var packetLength = 8 + (values ? Object.keys(values).length : 0);
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// TODO: should be CCSLLssSSSSLL - x,y are signed
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var format = 'CCSLLSSSSSSLL';
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@ -65,10 +123,12 @@ module.exports = {
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// bitmask (bytes #24 to #31 in the packet) - 32 bit indicating what adittional arguments we supply
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// values list (bytes #32 .. #32+4*num_values) in order of corresponding bits
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// TODO: replace with packValueMask
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var masksList = [];
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for (var v in values)
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{
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var valueBit = valueMask[v];
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var valueBit = valueMask['CreateWindow'][v];
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if (!valueBit)
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{
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throw new Error('CreateWindow: incorrect value param ' + v);
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@ -85,7 +145,7 @@ module.exports = {
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// TODO: maybe it's better just to scan all 32 bits anstead of sorting parameters we are actually have?
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for (m in masksList)
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{
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valueName = valueMaskNames[masksList[m]];
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valueName = valueMaskName['CreateWindow'][masksList[m]];
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args.push( values[valueName] );
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}
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return [format, args];
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@ -100,5 +160,23 @@ module.exports = {
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UnmapWindow: [
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[ 'CxSL', [10, 2] ]
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]
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],
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// opcode 55
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CreateGC: [
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function(cid, drawable, values) {
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var format = 'CxSLL';
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var packetLength = 8 + (values ? Object.keys(values).length : 0);
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var args = [55, packetLength, cid, drawable];
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var vals = packValueMask('CreateGC', values);
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args.push(vals[0]); // values bitmask
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var valArr = vals[1];
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for (v in valArr)
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{
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format += 'L'; // TODO: we know format string length in advance and += inefficient for string
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args.push(valArr[v]);
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}
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return [format, args];
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}
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]
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}
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16
test/creategc.js
Normal file
16
test/creategc.js
Normal file
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@ -0,0 +1,16 @@
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var x11 = require('../lib/x11');
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var xclient = x11.createClient();
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var mapped = true;
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xclient.on('connect', function(display) {
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var X = this;
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var root = display.screen[0].root;
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var wid = X.AllocID();
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X.CreateWindow(wid, root, 10, 10, 400, 300, 1, 1, 0, { backgroundPixel: 0, eventMask: 0x00000040 });
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X.MapWindow(wid);
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var cid = X.AllocID();
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X.CreateGC(cid, wid);
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});
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