Started on Issue 310: Move to Plugin Architecture, as well as Issue 200: flowchart (just connector lines for now)

git-svn-id: http://svg-edit.googlecode.com/svn/trunk@1277 eee81c28-f429-11dd-99c0-75d572ba1ddd
master
Alexis Deveria 2010-01-25 21:22:03 +00:00
parent 6eba334074
commit 75781771be
5 changed files with 399 additions and 6 deletions

243
editor/ext-connector.js Normal file
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@ -0,0 +1,243 @@
$(function() {
svgCanvas.addExtension("Connector", function(vars) {
var svgcontent = vars.content;
var getNextId = vars.getNextId;
var addElem = vars.addSvgElementFromJson;
var selManager = vars.selectorManager;
var started = false,
start_x,
start_y,
cur_line,
start_elem,
end_elem,
connections = [],
conn_class = "se_connect",
connect_str = "-SE_CONNECT-",
selElems;
// Init code
// (function() {
//
//
// }());
return {
name: "Connector",
svgicons: "images/conn.svg",
buttons: [{
id: "mode_connect",
type: "mode",
icon: "images/cut.png",
events: {
'click': function() {
svgCanvas.setMode("connector");
}
}
}],
mouseDown: function(opts) {
var e = opts.event;
start_x = opts.start_x,
start_y = opts.start_y;
var mode = svgCanvas.getMode();
if(mode == "connector") {
if(started) return;
if(e.target.parentNode.parentNode == svgcontent) {
// Connectable element
start_elem = e.target;
// Get center of source element
var bb = svgCanvas.getStrokedBBox([start_elem]);
var x = bb.x + bb.width/2;
var y = bb.y + bb.height/2;
started = true;
cur_line = addElem({
"element": "line",
"attr": {
"x1": x,
"y1": y,
"x2": start_x,
"y2": start_y,
"id": getNextId(),
"stroke": '#000',
"stroke-width": 1,
"fill": "none",
"opacity": .5,
"style": "pointer-events:none"
}
});
}
return {
started: true
};
} else if(mode == "select") {
// Check if selected elements have connections
var elems = opts.selectedElements;
var i = elems.length;
var connectors = $(svgcontent).find("." + conn_class);
if(!connectors.length) return;
connections = [];
while(i--) {
var elem = elems[i];
if(!elem) continue;
if(elem.getAttribute('class') == conn_class) continue;
var elem_id = elem.id;
connectors.each(function() {
var con_id = this.id;
if(con_id.indexOf(elem_id) != -1) {
var is_start = true;
if(con_id.indexOf(connect_str + elem_id) != -1) {
// Found connector (selected is end elem)
is_start = false;
}
var bb = svgCanvas.getStrokedBBox([elem]);
var x = bb.x + bb.width/2;
var y = bb.y + bb.height/2;
connections.push({
elem: elem,
connector: this,
is_start: is_start,
start_x: x,
start_y: y
});
}
});
}
}
},
mouseMove: function(opts) {
var zoom = svgCanvas.getZoom();
var e = opts.event;
var x = opts.mouse_x/zoom;
var y = opts.mouse_y/zoom;
var diff_x = x - start_x,
diff_y = y - start_y;
var mode = svgCanvas.getMode();
if(mode == "connector" && started) {
cur_line.setAttributeNS(null, "x2", x);
cur_line.setAttributeNS(null, "y2", y);
} else if(mode == "select") {
var slen = selElems.length;
while(slen--) {
var elem = selElems[slen];
// Look for selected connector elements
if(elem && elem.getAttribute('class') == conn_class) {
// Remove the "translate" transform given to move
svgCanvas.getTransformList(elem).clear();
}
}
if(connections.length) {
// Update line with element
var i = connections.length;
while(i--) {
var conn = connections[i];
var line = conn.connector;
var elem = conn.elem;
var n = conn.is_start ? 1 : 2;
line.setAttributeNS(null, "x"+n, conn.start_x + diff_x);
line.setAttributeNS(null, "y"+n, conn.start_y + diff_y);
}
}
}
},
mouseUp: function(opts) {
var zoom = svgCanvas.getZoom();
var e = opts.event,
x = opts.mouse_x/zoom,
y = opts.mouse_y/zoom;
if(svgCanvas.getMode() == "connector") {
if(e.target.parentNode.parentNode != svgcontent) {
// Not a valid target element, so remove line
$(cur_line).remove();
started = false;
return {
keep: false,
element: null,
started: started
}
} else if(e.target == start_elem) {
// Start line through click
started = true;
return {
keep: true,
element: null,
started: started
}
} else {
// Valid end element
end_elem = e.target;
var line_id = start_elem.id + connect_str + end_elem.id;
var alt_line_id = end_elem.id + connect_str + start_elem.id;
// Don't create connector if one already exists
if($('#'+line_id + ', #' + alt_line_id).length) {
$(cur_line).remove();
return {
keep: false,
element: null,
started: false
}
}
var bb = svgCanvas.getStrokedBBox([end_elem]);
var x = bb.x + bb.width/2;
var y = bb.y + bb.height/2;
cur_line.setAttributeNS(null, "x2", x);
cur_line.setAttributeNS(null, "y2", y);
cur_line.id = line_id;
console.log('cur_line',cur_line.id);
cur_line.setAttribute("class", conn_class);
svgCanvas.addToSelection([cur_line]);
svgCanvas.moveToBottomSelectedElement();
started = false;
return {
keep: true,
element: cur_line,
started: started
}
}
}
},
selectedChanged: function(opts) {
// Use this to update the current selected elements
selElems = opts.elems;
var i = selElems.length;
// var to_hide = $('#tool_clone, #tool_topath, div.toolset:has(#angle), #line_panel');
while(i--) {
var elem = selElems[i];
if(elem && elem.getAttribute('class') == conn_class) {
selManager.requestSelector(elem).showGrips(false);
if(opts.selectedElement && !opts.multiselected) {
// TODO: Set up context tools and hide most regular line tools
}
}
}
}
};
});
});

10
editor/images/conn.svg Normal file
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@ -0,0 +1,10 @@
<svg xmlns="http://www.w3.org/2000/svg">
<g id="mode_connect">
<svg viewBox="0 0 131 156" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg">
<line stroke-dasharray="5,5" transform="rotate(-83.0765, 60.5, 79.0001)" fill="none" stroke-width="5" stroke="#000000" id="svg_1" y2="121.004358" x2="14.899046" y1="36.995687" x1="106.101014"/>
<circle stroke-width="5" stroke="#000000" fill="#800000" id="svg_3" r="25" cy="27.5" cx="27.5"/>
<rect stroke-width="5" stroke="#000000" fill="#008000" id="svg_6" height="39" width="74" y="114.5" x="54.5"/>
</svg>
</g>
<g id="svg_eof"/>
</svg>

After

Width:  |  Height:  |  Size: 625 B

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@ -18,6 +18,7 @@
<script type="text/javascript" src="locale/locale.js"></script>
<script type="text/javascript" src="svgcanvas.js"></script>
<script type="text/javascript" src="svg-editor.js"></script>
<!-- <script type="text/javascript" src="ext-connector.js"></script> -->
<!-- Release version of script tags: >
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>

View File

@ -202,9 +202,12 @@ function svg_edit_setup() {
// Deal with pathedit mode
togglePathEditMode(is_node, elems);
updateContextPanel();
updateContextPanel();
svgCanvas.runExtensions("selectedChanged", {
elems: elems,
selectedElement: selectedElement,
multiselected: multiselected
});
};
// called when any element has changed
@ -258,6 +261,83 @@ function svg_edit_setup() {
}
zoomDone();
}
var extAdded = function(window, ext) {
if("buttons" in ext) {
var fallback_obj = {},
placement_obj = {},
svgicons = ext.svgicons;
// Add buttons given by extension
$.each(ext.buttons, function(i, btn) {
var icon;
var id = btn.id;
var num = i;
// Give button a unique ID
while($('#'+id).length) {
id = btn.id + '_' + (++num);
}
if(!svgicons) {
icon = $('<img src="' + btn.icon + '">');
} else {
fallback_obj[id] = btn.iocn;
placement_obj['#' + id] = btn.id;
}
var cls, parent;
// Set button up according to its type
switch ( btn.type ) {
case 'mode':
cls = 'tool_button';
parent = "#tools_left";
break;
}
var button = $('<div/>')
.attr("id", id)
.addClass(cls)
.appendTo(parent);
if(!svgicons) {
button.append(icon);
}
// Add given events to button
$.each(btn.events, function(name, func) {
button.bind(name, function() {
if(name == "click" && btn.type == 'mode') {
if (toolButtonClick('#' + id)) {
func();
}
} else {
func();
}
});
});
});
$.svgIcons(svgicons, {
w:24, h:24,
id_match: false,
no_img: true,
fallback: fallback_obj,
placement: placement_obj,
callback: function() {
// Bad hack to make the icon match the current size
// TODO: Write better hack!
var old = curPrefs.iconsize;
if(curPrefs.iconsize != 'm') {
setIconSize('m');
setIconSize(old);
}
}
});
}
};
// updates the toolbar (colors, opacity, etc) based on the selected element
var updateToolbar = function() {
@ -507,6 +587,7 @@ function svg_edit_setup() {
svgCanvas.bind("changed", elementChanged);
svgCanvas.bind("saved", saveHandler);
svgCanvas.bind("zoomed", zoomChanged);
svgCanvas.bind("extension_added", extAdded);
var str = '<div class="palette_item" data-rgb="none"></div>'
$.each(palette, function(i,item){

View File

@ -959,7 +959,34 @@ function BatchCommand(text) {
events = {},
undoStackPointer = 0,
undoStack = [],
curBBoxes = [];
curBBoxes = [],
extensions = {};
var runExtensions = this.runExtensions = function(action, vars) {
var result = false;
$.each(extensions, function(name, opts) {
if(action in opts) {
result = opts[action](vars);
}
});
return result;
}
this.addExtension = function(name, ext_func) {
if(!(name in extensions)) {
// Provide constants here (or should these be accessed through getSomething()?
var ext = ext_func({
content: svgcontent,
getNextId: getNextId,
addSvgElementFromJson: addSvgElementFromJson,
selectorManager: selectorManager
});
extensions[name] = ext;
call("extension_added", ext);
} else {
console.log('Cannot add extension "' + name + '", an extension by that name already exists"');
}
};
// This method rounds the incoming value to the nearest value based on the current_zoom
var round = function(val){
@ -2131,7 +2158,6 @@ function BatchCommand(text) {
// Make sure first elements are not null
while(selectedElements[0] == null) selectedElements.shift(0);
};
// TODO: could use slice here to make this faster?
@ -2659,6 +2685,17 @@ function BatchCommand(text) {
console.log("Unknown mode in mousedown: " + current_mode);
break;
}
var ext_result = runExtensions("mouseDown", {
event: evt,
start_x: start_x,
start_y: start_y,
selectedElements: selectedElements
});
if(ext_result) {
started = ext_result.started;
}
};
// in this function we do not record any state changes yet (but we do update
@ -2952,6 +2989,14 @@ function BatchCommand(text) {
default:
break;
}
runExtensions("mouseMove", {
event: evt,
mouse_x: mouse_x,
mouse_y: mouse_y,
selected: selected
});
}; // mouseMove()
var mouseUp = function(evt)
@ -3161,6 +3206,19 @@ function BatchCommand(text) {
console.log("Unknown mode in mouseup: " + current_mode);
break;
}
var ext_result = runExtensions("mouseUp", {
event: evt,
mouse_x: mouse_x,
mouse_y: mouse_y
});
if(ext_result) {
keep = ext_result.keep;
element = ext_result.element;
started = ext_result.started;
}
if (!keep && element != null) {
element.parentNode.removeChild(element);
element = null;
@ -3201,7 +3259,7 @@ function BatchCommand(text) {
addCommandToHistory(new InsertElementCommand(element));
call("changed",[element]);
}
start_transform = null;
};