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annotate doodle/fig/select_tool.d @ 84:cdd4fc728d94

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Renamed Drawable to Renderer
author daveb
date Mon, 16 Aug 2010 17:23:09 +0930
parents d92b9f04b1e8
children bc5baa585b32
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1 module doodle.fig.select_tool;
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2
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3 public {
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4 import doodle.dia.tool;
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5 }
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6
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7 final class SelectTool : Tool {
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8 this() {
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9 super("Select");
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10 }
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11
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12 override bool handleButtonPress(scope IViewport viewport, in ButtonEvent event) {
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13 if (event.buttonName == ButtonName.LEFT) {
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14 _active = true;
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15 _anchorPoint = _currentPoint = event.screenPoint;
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16 viewport.setCursor(Cursor.HAND);
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17 return true;
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18 }
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19 else {
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20 return false;
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21 }
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22 }
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23
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24 override bool handleButtonRelease(scope IViewport viewport, in ButtonEvent event) {
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25 if (event.buttonName == ButtonName.LEFT && _active) {
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26 _active = false;
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27 viewport.damageScreen(growCentre(Rectangle(_anchorPoint, _currentPoint), LINE_WIDTH));
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28 viewport.setCursor(Cursor.DEFAULT);
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29 return true;
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30 }
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31 else {
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32 return false;
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33 }
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34 }
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35
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36 override bool handleMotion(scope IViewport viewport, in MotionEvent event) {
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37 if (_active) {
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38 viewport.damageScreen(growCentre(Rectangle(_anchorPoint, _currentPoint), LINE_WIDTH));
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39 _currentPoint = event.screenPoint;
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40 viewport.damageScreen(growCentre(Rectangle(_anchorPoint, _currentPoint), LINE_WIDTH));
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41 }
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42
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43 return false;
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44 }
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45
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cdd4fc728d94 Renamed Drawable to Renderer
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46 override void draw(in Rectangle screenDamage, scope Renderer screenRenderer) const {
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47 if (_active) {
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48 screenRenderer.pushState; {
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49 screenRenderer.setLineStyle(Renderer.LineStyle.DASHED);
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50 screenRenderer.setLineWidth(LINE_WIDTH);
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51 screenRenderer.setColor(Color(0.0, 0.0, 0.5, 1.0));
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52 screenRenderer.drawRectangle(Rectangle(_currentPoint, _anchorPoint), false);
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53 } screenRenderer.popState;
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54 }
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55 }
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56
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57 private {
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58 bool _active;
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59 Point _currentPoint;
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60 Point _anchorPoint;
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61 static immutable double LINE_WIDTH = 1.0;
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62 }
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63 }