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1 // Copyright (C) 2010, 2011, 2012, 2013 GlavSoft LLC.
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2 // All rights reserved.
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3 //
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4 //-------------------------------------------------------------------------
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5 // This file is part of the TightVNC software. Please visit our Web site:
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6 //
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7 // http://www.tightvnc.com/
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8 //
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9 // This program is free software; you can redistribute it and/or modify
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10 // it under the terms of the GNU General Public License as published by
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11 // the Free Software Foundation; either version 2 of the License, or
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12 // (at your option) any later version.
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13 //
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14 // This program is distributed in the hope that it will be useful,
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15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 // GNU General Public License for more details.
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18 //
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19 // You should have received a copy of the GNU General Public License along
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20 // with this program; if not, write to the Free Software Foundation, Inc.,
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21 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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22 //-------------------------------------------------------------------------
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23 //
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24
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25 package com.glavsoft.viewer;
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26
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27 import com.glavsoft.core.SettingsChangedEvent;
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28 import com.glavsoft.rfb.IChangeSettingsListener;
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29 import com.glavsoft.viewer.swing.LocalMouseCursorShape;
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30
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31 import java.text.DecimalFormat;
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32 import java.text.NumberFormat;
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33 import java.util.LinkedList;
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34 import java.util.List;
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35
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36 /**
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37 * @author dime at tightvnc.com
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38 */
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39 public class UiSettings {
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40
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41 public static final int MIN_SCALE_PERCENT = 10;
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42 public static final int MAX_SCALE_PERCENT = 500;
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43 private static final int SCALE_PERCENT_ZOOMING_STEP = 10;
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44
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45 @SuppressWarnings("PointlessBitwiseExpression")
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46 public static final int CHANGED_SCALE_FACTOR = 1 << 0;
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47 public static final int CHANGED_MOUSE_CURSOR_SHAPE = 1 << 1;
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48 public static final int CHANGED_FULL_SCREEN = 1 << 2;
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49
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50 private final List<IChangeSettingsListener> listeners = new LinkedList<IChangeSettingsListener>();
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51 private int changedSettingsMask = 0;
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52
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53 private final UiSettingsData uiSettingsData;
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54 public boolean showControls = true;
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55
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56 public UiSettings() {
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57 uiSettingsData = new UiSettingsData();
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58 changedSettingsMask = 0;
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59 }
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60
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61 public UiSettings(UiSettings uiSettings) {
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62 uiSettingsData = new UiSettingsData(
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63 uiSettings.getScalePercent(), uiSettings.getMouseCursorShape(), uiSettings.isFullScreen());
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64 this.changedSettingsMask = uiSettings.changedSettingsMask;
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65 }
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66
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67 public double getScaleFactor() {
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68 return uiSettingsData.getScalePercent() / 100.;
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69 }
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70
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71 public void setScalePercent(double scalePercent) {
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72 if (this.uiSettingsData.setScalePercent(scalePercent)) {
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73 changedSettingsMask |= CHANGED_SCALE_FACTOR;
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74 }
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75 }
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76
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77 public void addListener(IChangeSettingsListener listener) {
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78 listeners.add(listener);
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79 }
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80
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81 void fireListeners() {
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82 if (null == listeners) return;
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83 final SettingsChangedEvent event = new SettingsChangedEvent(new UiSettings(this));
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84 changedSettingsMask = 0;
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85 for (IChangeSettingsListener listener : listeners) {
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86 listener.settingsChanged(event);
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87 }
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88 }
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89
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90 public void zoomOut() {
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91 double oldScaleFactor = uiSettingsData.getScalePercent();
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92 double scaleFactor = (int)(this.uiSettingsData.getScalePercent() / SCALE_PERCENT_ZOOMING_STEP) * SCALE_PERCENT_ZOOMING_STEP;
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93 if (scaleFactor == oldScaleFactor) {
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94 scaleFactor -= SCALE_PERCENT_ZOOMING_STEP;
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95 }
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96 if (scaleFactor < MIN_SCALE_PERCENT) {
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97 scaleFactor = MIN_SCALE_PERCENT;
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98 }
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99 setScalePercent(scaleFactor);
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100 fireListeners();
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101 }
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102
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103 public void zoomIn() {
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104 double scaleFactor = (int)(this.uiSettingsData.getScalePercent() / SCALE_PERCENT_ZOOMING_STEP) * SCALE_PERCENT_ZOOMING_STEP + SCALE_PERCENT_ZOOMING_STEP;
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105 if (scaleFactor > MAX_SCALE_PERCENT) {
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106 scaleFactor = MAX_SCALE_PERCENT;
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107 }
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108 setScalePercent(scaleFactor);
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109 fireListeners();
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110 }
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111
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112 public void zoomAsIs() {
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113 setScalePercent(100);
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114 fireListeners();
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115 }
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116
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117 public void zoomToFit(int containerWidth, int containerHeight, int fbWidth, int fbHeight) {
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118 int scalePromille = Math.min(1000 * containerWidth / fbWidth,
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119 1000 * containerHeight / fbHeight);
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120 while (fbWidth * scalePromille / 1000. > containerWidth ||
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121 fbHeight * scalePromille / 1000. > containerHeight) {
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122 scalePromille -= 1;
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123 }
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124 setScalePercent(scalePromille / 10.);
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125 fireListeners();
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126 }
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127
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128 public boolean isChangedMouseCursorShape() {
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129 return (changedSettingsMask & CHANGED_MOUSE_CURSOR_SHAPE) == CHANGED_MOUSE_CURSOR_SHAPE;
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130 }
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131
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132 public static boolean isUiSettingsChangedFired(SettingsChangedEvent event) {
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133 return event.getSource() instanceof UiSettings;
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134 }
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135
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136 public double getScalePercent() {
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137 return uiSettingsData.getScalePercent();
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138 }
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139
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140 public String getScalePercentFormatted() {
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141 NumberFormat numberFormat = new DecimalFormat("###.#");
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142 return numberFormat.format(uiSettingsData.getScalePercent());
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143 }
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144
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145 public LocalMouseCursorShape getMouseCursorShape() {
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146 return uiSettingsData.getMouseCursorShape();
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147 }
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148
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149 public void setMouseCursorShape(LocalMouseCursorShape mouseCursorShape) {
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150 if (this.uiSettingsData.setMouseCursorShape(mouseCursorShape)) {
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151 changedSettingsMask |= CHANGED_MOUSE_CURSOR_SHAPE;
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152 fireListeners();
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153 }
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154 }
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155
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156 public void copyDataFrom(UiSettingsData other) {
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157 copyDataFrom(other, 0);
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158 }
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159 public void copyDataFrom(UiSettingsData other, int mask) {
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160 if (null == other) return;
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161 if ((mask & CHANGED_SCALE_FACTOR) == 0) uiSettingsData.setScalePercent(other.getScalePercent());
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162 if ((mask & CHANGED_MOUSE_CURSOR_SHAPE) == 0) uiSettingsData.setMouseCursorShape(other.getMouseCursorShape());
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163 if ((mask & CHANGED_FULL_SCREEN) == 0) uiSettingsData.setFullScreen(other.isFullScreen());
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164 }
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165
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166 public void setFullScreen(boolean isFullScreen) {
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167 if (uiSettingsData.setFullScreen(isFullScreen)) {
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168 changedSettingsMask |= CHANGED_FULL_SCREEN;
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169 fireListeners();
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170 }
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171 }
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172
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173 public boolean isFullScreen() {
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174 return uiSettingsData.isFullScreen();
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175 }
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176
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177 public UiSettingsData getData() {
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178 return uiSettingsData;
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179 }
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180
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181 @Override
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182 public String toString() {
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183 return "UiSettings{" +
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184 "scalePercent=" + uiSettingsData.getScalePercent() +
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185 ", fullScreen=" + uiSettingsData.isFullScreen() +
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186 ", mouseCursorShape=" + uiSettingsData.getMouseCursorShape() +
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187 '}';
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188 }
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189
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190 }
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