src/jp/sourceforge/posterdivider/CanvasPreview.java

   1 //
   2 // CanvasPreview.java
   3 // This file is part of PosterDivider.
   4 //
   5 package jp.sourceforge.posterdivider;
   6
   7 import java.awt.Canvas;
   8 import java.awt.Color;
   9 import java.awt.Graphics;
  10 import java.awt.image.*;
  11
  12 public class CanvasPreview extends Canvas {
  13         private static final long serialVersionUID = 1L;
  14
  15         private ImageContainer ic;
  16         private PdfGenerator.CreatePosterArgs args;
  17
  18         @Override
  19         public void paint(Graphics g) {
  20                 super.paint(g);
  21
  22                 g.setColor(Color.WHITE);
  23                 g.fillRect(0, 0, this.getWidth(), this.getHeight());
  24                 g.setColor(Color.GRAY);
  25                 g.drawRect(0, 0, this.getWidth() - 1, this.getHeight() - 1);
  26
  27                 if (ic == null || args == null) {
  28                         // 未設定項目がある場合
  29                         return;
  30                 }
  31                 BufferedImage awtImage = ic.getAwtImage();
  32
  33                 // 左側
  34                 float srcBoxX = this.getWidth() * 0.05f;
  35                 float srcBoxY = this.getHeight() * 0.05f;
  36                 float srcBoxWidth = this.getWidth() * 0.40f;
  37                 float srcBoxHeight = this.getHeight() * 0.90f;
  38                 // g.setColor(Color.GRAY);
  39                 // g.drawRect((int) srcBoxX, (int) srcBoxY, (int) srcBoxWidth,
  40                 // (int) srcBoxHeight);
  41
  42                 float srcImageX, srcImageY, srcImageWidth, srcImageHeight, srcImageRate;
  43                 if (ic.getImageWidth() * srcBoxHeight > ic.getImageHeight()
  44                                 * srcBoxWidth) {
  45                         // 横長
  46                         srcImageX = srcBoxX;
  47                         srcImageWidth = srcBoxWidth;
  48                         srcImageRate = srcImageWidth / ic.getImageWidth();
  49                         srcImageHeight = ic.getImageHeight() * srcImageRate;
  50                         srcImageY = srcBoxY + (srcBoxHeight - srcImageHeight) / 2;
  51                 } else {
  52                         // 縦長
  53                         srcImageY = srcBoxY;
  54                         srcImageHeight = srcBoxHeight;
  55                         srcImageRate = srcImageHeight / ic.getImageHeight();
  56                         srcImageWidth = ic.getImageWidth() * srcImageRate;
  57                         srcImageX = srcBoxX + (srcBoxWidth - srcImageWidth) / 2;
  58                 }
  59                 int srcImageLeft = (int) srcImageX;
  60                 int srcImageTop = (int) srcImageY;
  61                 int srcImageRight = (int) (srcImageX + srcImageWidth);
  62                 int srcImageBottom = (int) (srcImageY + srcImageHeight);
  63                 if (awtImage != null) {
  64                         g.drawImage(awtImage, srcImageLeft, srcImageTop, srcImageRight,
  65                                         srcImageBottom, 0, 0, awtImage.getWidth(), awtImage
  66                                                         .getHeight(), this);
  67                 }
  68
  69                 float srcX = srcImageX + args.getSrcLeft() * srcImageRate;
  70                 // srcは左上原点だが、CreatePosterArgsのsrcは左下原点なのでここで解消する
  71                 float srcY = srcImageY + (ic.getImageHeight() - args.getSrcTop())
  72                                 * srcImageRate;
  73                 float srcWidth = args.getSrcWidth() * srcImageRate;
  74                 float srcHeight = args.getSrcHeight() * srcImageRate;
  75                 int srcLeft = (int) srcX;
  76                 int srcTop = (int) srcY;
  77                 int srcRight = (int) (srcX + srcWidth);
  78                 int srcBottom = (int) (srcY + srcHeight);
  79                 if (awtImage != null) {
  80                         // 範囲外の部分を塗りつぶす
  81                         g.setColor(new Color(1.0f, 1.0f, 1.0f, 0.5f));
  82                         g.fillRect(srcImageLeft, srcImageTop, srcImageRight - srcImageLeft,
  83                                         srcTop - srcImageTop);
  84                         g.fillRect(srcImageLeft, srcTop, srcLeft - srcImageLeft, srcBottom
  85                                         - srcTop);
  86                         g.fillRect(srcRight, srcTop, srcImageRight - srcRight, srcBottom
  87                                         - srcTop);
  88                         g.fillRect(srcImageLeft, srcBottom, srcImageRight - srcImageLeft,
  89                                         srcImageBottom - srcBottom);
  90                 } else {
  91                         g.setColor(Color.GRAY);
  92                         g.fillRect(srcLeft, srcTop, srcRight - srcLeft, srcBottom - srcTop);
  93                 }
  94                 g.setColor(Color.BLACK);
  95                 g.drawRect(srcImageLeft, srcImageTop, srcImageRight - srcImageLeft,
  96                                 srcImageBottom - srcImageTop);
  97                 g.setColor(Color.BLACK);
  98                 g.drawRect(srcLeft, srcTop, srcRight - srcLeft, srcBottom - srcTop);
  99
 100                 // 右側
 101
 102                 float posterBoxX = this.getWidth() * 0.55f;
 103                 float posterBoxY = this.getHeight() * 0.05f;
 104                 float posterBoxWidth = this.getWidth() * 0.40f;
 105                 float posterBoxHeight = this.getHeight() * 0.90f;
 106                 // g.setColor(Color.GRAY);
 107                 // g.drawRect((int) posterBoxX, (int) posterBoxY, (int) posterBoxWidth,
 108                 // (int) posterBoxHeight);
 109
 110                 float posterX, posterY, posterWidth, posterHeight, posterRate;
 111                 if (args.getPosterWidth() * posterBoxHeight > args.getPosterHeight()
 112                                 * posterBoxWidth) {
 113                         // 横長
 114                         posterX = posterBoxX;
 115                         posterWidth = posterBoxWidth;
 116                         posterRate = posterWidth / args.getPosterWidth();
 117                         posterHeight = args.getPosterHeight() * posterRate;
 118                         posterY = posterBoxY + (posterBoxHeight - posterHeight) / 2;
 119                 } else {
 120                         // 縦長
 121                         posterY = posterBoxY;
 122                         posterHeight = posterBoxHeight;
 123                         posterRate = posterHeight / args.getPosterHeight();
 124                         posterWidth = args.getPosterWidth() * posterRate;
 125                         posterX = posterBoxX + (posterBoxWidth - posterWidth) / 2;
 126                 }
 127                 int postarLeft = (int) posterX;
 128                 int postarTop = (int) posterY;
 129                 int postarRight = (int) (posterX + posterWidth);
 130                 int postarBottom = (int) (posterY + posterHeight);
 131                 if (awtImage != null) {
 132                         g.drawImage(awtImage, postarLeft, postarTop, postarRight,
 133                                         postarBottom, (int) (awtImage.getWidth()
 134                                                         * args.getSrcLeft() / ic.getImageWidth()),
 135                                         (int) (awtImage.getHeight()
 136                                                         * (ic.getImageHeight() - args.getSrcTop()) / ic
 137                                                         .getImageHeight()), (int) (awtImage.getWidth()
 138                                                         * args.getSrcRight() / ic.getImageWidth()),
 139                                         (int) (awtImage.getHeight()
 140                                                         * (ic.getImageHeight() - args.getSrcBottom()) / ic
 141                                                         .getImageHeight()), this);
 142                 } else {
 143                         g.setColor(Color.GRAY);
 144                         g.fillRect(postarLeft, postarTop, postarRight - postarLeft,
 145                                         postarBottom - postarTop);
 146                 }
 147                 g.setColor(Color.BLACK);
 148                 g.drawRect(postarLeft, postarTop, postarRight - postarLeft,
 149                                 postarBottom - postarTop);
 150
 151                 int paperCountX = PdfGenerator.simulateOutputPaperCountX(args);
 152                 int paperCountY = PdfGenerator.simulateOutputPaperCountY(args);
 153
 154                 if (paperCountX < 0 || paperCountY < 0) {
 155                         // 設定値が不正
 156                         return;
 157                 }
 158
 159                 float paperX = posterX - args.getMarginLeft() * posterRate;
 160                 float paperY = posterY - args.getMarginTop() * posterRate;
 161                 float paperWidth = args.getPaperWidth() * posterRate;
 162                 float paperHeight = args.getPaperHeight() * posterRate;
 163                 float paperTextWidth = (args.getPaperWidth() - args.getMarginLeft() - args
 164                                 .getMarginRight())
 165                                 * posterRate;
 166                 float paperTextHeight = (args.getPaperHeight() - args.getMarginTop() - args
 167                                 .getMarginBottom())
 168                                 * posterRate;
 169
 170                 float y = paperY;
 171                 for (int i = 0; i < paperCountY; i++) {
 172                         float x = paperX;
 173                         for (int j = 0; j < paperCountX; j++) {
 174                                 // 交互に色を変える
 175                                 if ((i + j) % 2 == 0) {
 176                                         g.setColor(Color.RED);
 177                                         g.drawRect((int) x, (int) y, (int) paperWidth,
 178                                                         (int) paperHeight);
 179                                 } else {
 180                                         g.setColor(Color.BLUE);
 181                                         g.drawRect((int) x + 1, (int) y + 1, (int) paperWidth,
 182                                                         (int) paperHeight);
 183                                 }
 184                                 x += paperTextWidth;
 185                         }
 186                         y += paperTextHeight;
 187                 }
 188         }
 189
 190         public ImageContainer getImageContainer() {
 191                 return ic;
 192         }
 193
 194         public void setImageContainer(ImageContainer ic) {
 195                 this.ic = ic;
 196         }
 197
 198         public PdfGenerator.CreatePosterArgs getArgs() {
 199                 return this.args;
 200         }
 201
 202         public void setArgs(PdfGenerator.CreatePosterArgs args) {
 203                 this.args = args;
 204         }
 205 }