Block copy/paste

4 files changed, 55 insertions, 9 deletions

diff --git a/README.md b/README.md
index 1aefd7c..9d54774 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,9 @@ The idea is to build a synth/mini sequencer, here's some tasks I need to tackle
 [ ] custom synth functions, like `:SYN[ADSR](C)`
 [ ] "I wanna be able to 1000x fastforward my pico programs"
 [ ] sub programs scope
-[ ] block copy-paste
+[ ] block cut
+[ ] block delete
+[ ] block add glyph
 
 ## Extras
 
diff --git a/desktop/core/pico.js b/desktop/core/pico.js
index 9e334f5..1ca12cb 100644
--- a/desktop/core/pico.js
+++ b/desktop/core/pico.js
@@ -122,6 +122,40 @@ function Pico (w, h) {
     return x + (this.w * y)
   }
 
+  // Blocks
+
+  this.getBlock = function(x,y,w,h)
+  {
+    let _y = y
+    const block = []
+    while(_y < y+h){
+      let _x = x
+      const line = []
+      while(_x < x+w){
+        line.push(this.glyphAt(_x,_y))
+        _x++
+      }
+      block.push(line)
+      _y++
+    }
+    return block
+  }
+
+  this.addBlock = function(x,y,block)
+  {
+    if(!block || block.length == 0){ this.terminal.log('Nothing to paste'); return; }
+    
+    let _y = y
+    for(const lineId in block){
+      let _x = x
+      for(const glyphId in block[lineId]){
+        this.add(_x,_y,block[lineId][glyphId])
+        _x++
+      }
+      _y++
+    }
+  }
+
   // Locks
 
   this.isLocked = function (x, y) {
diff --git a/desktop/sources/scripts/cursor.js b/desktop/sources/scripts/cursor.js
index 68574f0..e9bd78f 100644
--- a/desktop/sources/scripts/cursor.js
+++ b/desktop/sources/scripts/cursor.js
@@ -1,11 +1,15 @@
 'use strict'
 
-function Cursor()
+function Cursor(terminal)
 {
+  this.terminal = terminal
+
   this.x = 0
   this.y = 0
-  this.w =1
-  this.h =1
+  this.w = 1
+  this.h = 1
+
+  this.block = []
 
   this.move = function (x, y) {
     this.x = clamp(this.x + x, 0, pico.w - 1)
@@ -14,8 +18,8 @@ function Cursor()
   }
 
   this.scale = function(x, y){
-    this.w = clamp(this.w + x, 1, 10)
-    this.h = clamp(this.h - y, 1, 10)
+    this.w = clamp(this.w + x, 1, 30)
+    this.h = clamp(this.h - y, 1, 30)
     terminal.update()
   }
 
@@ -25,7 +29,13 @@ function Cursor()
   }
 
   this.copy = function(){
-    console.log('copy',this.x,this.y,this.w,this.h)
+    this.terminal.log(`Copy ${this.x},${this.y}[${this.w}x${this.h}]`)
+    this.block = this.terminal.pico.getBlock(this.x,this.y,this.w,this.h)
+  }
+
+  this.paste = function(){
+    this.terminal.log(`Paste ${this.x},${this.y}[${this.w}x${this.h}]`)
+    this.terminal.pico.addBlock(this.x,this.y,this.block)
   }
 
   this.insert = function (g) {
@@ -40,7 +50,7 @@ function Cursor()
     const g = pico.glyphAt(this.x, this.y)
     return pico.docs[g] ? pico.docs[g] : `${this.x},${this.y}[${this.w}x${this.h}]`
   }
-  
+
   function clamp (v, min, max) { return v < min ? min : v > max ? max : v }
 }
 
diff --git a/desktop/sources/scripts/keyboard.js b/desktop/sources/scripts/keyboard.js
index 3a9aecd..05258ec 100644
--- a/desktop/sources/scripts/keyboard.js
+++ b/desktop/sources/scripts/keyboard.js
@@ -19,7 +19,7 @@ function Keyboard () {
     }
 
     if (event.key == 'c' && event.metaKey) { terminal.cursor.copy(); return }
-    if (event.key == 'v' && event.metaKey) { terminal.cursor.copy(); return }
+    if (event.key == 'v' && event.metaKey) { terminal.cursor.paste(); return }
 
     if (event.keyCode == 38) { keyboard.key_arrow_up(event.shiftKey); return }
     if (event.keyCode == 40) { keyboard.key_arrow_down(event.shiftKey); return }