Mercurial > dive4elements > river
comparison flys-client/src/main/java/de/intevation/flys/client/client/ui/chart/PanControl.java @ 553:c5fc3fa02edb
The MouseOut event will now finish a current pan operation.
flys-client/trunk@2067 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Tue, 07 Jun 2011 13:58:38 +0000 |
| parents | 13c7f90917fc |
| children | ea2191b1299d |
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| 552:6050d49eaba3 | 553:c5fc3fa02edb |
|---|---|
| 6 import com.google.gwt.core.client.GWT; | 6 import com.google.gwt.core.client.GWT; |
| 7 | 7 |
| 8 import com.smartgwt.client.types.Overflow; | 8 import com.smartgwt.client.types.Overflow; |
| 9 import com.smartgwt.client.types.SelectionType; | 9 import com.smartgwt.client.types.SelectionType; |
| 10 import com.smartgwt.client.widgets.Canvas; | 10 import com.smartgwt.client.widgets.Canvas; |
| 11 import com.smartgwt.client.widgets.Img; | |
| 11 import com.smartgwt.client.widgets.ImgButton; | 12 import com.smartgwt.client.widgets.ImgButton; |
| 12 import com.smartgwt.client.widgets.events.MouseDownEvent; | 13 import com.smartgwt.client.widgets.events.MouseDownEvent; |
| 13 import com.smartgwt.client.widgets.events.MouseDownHandler; | 14 import com.smartgwt.client.widgets.events.MouseDownHandler; |
| 14 import com.smartgwt.client.widgets.events.MouseMoveEvent; | 15 import com.smartgwt.client.widgets.events.MouseMoveEvent; |
| 15 import com.smartgwt.client.widgets.events.MouseMoveHandler; | 16 import com.smartgwt.client.widgets.events.MouseMoveHandler; |
| 145 * This event is used to cancel the current dragging operation. | 146 * This event is used to cancel the current dragging operation. |
| 146 * | 147 * |
| 147 * @param event The mouse out event. | 148 * @param event The mouse out event. |
| 148 */ | 149 */ |
| 149 public void onMouseOut(MouseOutEvent event) { | 150 public void onMouseOut(MouseOutEvent event) { |
| 150 // TODO Cancel dragging if mouse pointer leaves chart area | 151 int x = event.getX(); |
| 152 int y = event.getY(); | |
| 153 | |
| 154 if (!isSelected() || !isMouseOut(x, y) || start[0] == -1) { | |
| 155 return; | |
| 156 } | |
| 157 | |
| 158 Canvas parent = chartTab.getChartPanel().getParentElement(); | |
| 159 parent.setOverflow(Overflow.AUTO); | |
| 160 | |
| 161 fireOnPan(); | |
| 162 | |
| 163 start[0] = -1; | |
| 164 start[1] = -1; | |
| 165 } | |
| 166 | |
| 167 | |
| 168 /** | |
| 169 * This method is required to check manually if the mouse pointer really | |
| 170 * moves out the chart area. The MouseOutEvent is also fired if the mouse | |
| 171 * goes down which doesn't seem to be correct. So, we gonna check this | |
| 172 * manually. | |
| 173 * | |
| 174 * @param x The x coordinate. | |
| 175 * @param y The y coordinate. | |
| 176 * | |
| 177 * @return true, if the mouse is really out of the chart area, otherwise | |
| 178 * false. | |
| 179 */ | |
| 180 protected boolean isMouseOut(int x, int y) { | |
| 181 Canvas chart = chartTab.getChartPanel(); | |
| 182 | |
| 183 if (chart instanceof Img) { | |
| 184 chart = chart.getParentElement(); | |
| 185 } | |
| 186 | |
| 187 int left = chart.getPageLeft(); | |
| 188 int right = chart.getPageRight(); | |
| 189 int top = chart.getPageTop(); | |
| 190 int bottom = chart.getPageBottom(); | |
| 191 | |
| 192 if (x <= left || x >= right || y <= top || y >= bottom) { | |
| 193 return true; | |
| 194 } | |
| 195 | |
| 196 return false; | |
| 151 } | 197 } |
| 152 | 198 |
| 153 | 199 |
| 154 /** | 200 /** |
| 155 * A pan event is fired to inform the registered listeners about a pan | 201 * A pan event is fired to inform the registered listeners about a pan |