NXWidgets: csliderverticalgrip.cxx Source File

NXWidgets 1.19

csliderverticalgrip.cxx
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1 /****************************************************************************
2 * NxWidgets/libnxwidgets/src/cslidervertical.cxx
3 *
4 * Copyright (C) 2012 Gregory Nutt. All rights reserved.
5 * Author: Gregory Nutt <gnutt@nuttx.org>
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
16 * distribution.
17 * 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
18 * me be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
28 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 *
34 ****************************************************************************
35 *
36 * Portions of this package derive from Woopsi (http://woopsi.org/) and
37 * portions are original efforts. It is difficult to determine at this
38 * point what parts are original efforts and which parts derive from Woopsi.
39 * However, in any event, the work of Antony Dzeryn will be acknowledged
40 * in most NxWidget files. Thanks Antony!
41 *
42 * Copyright (c) 2007-2011, Antony Dzeryn
43 * All rights reserved.
44 *
45 * Redistribution and use in source and binary forms, with or without
46 * modification, are permitted provided that the following conditions are met:
47 *
48 * * Redistributions of source code must retain the above copyright
49 * notice, this list of conditions and the following disclaimer.
50 * * Redistributions in binary form must reproduce the above copyright
51 * notice, this list of conditions and the following disclaimer in the
52 * documentation and/or other materials provided with the distribution.
53 * * Neither the names "Woopsi", "Simian Zombie" nor the
54 * names of its contributors may be used to endorse or promote products
55 * derived from this software without specific prior written permission.
56 *
57 * THIS SOFTWARE IS PROVIDED BY Antony Dzeryn ``AS IS'' AND ANY
58 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
59 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
60 * DISCLAIMED. IN NO EVENT SHALL Antony Dzeryn BE LIABLE FOR ANY
61 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
62 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
63 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
64 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
66 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
67 *
68 ****************************************************************************/
69
70 /****************************************************************************
71 * Included Files
72 ****************************************************************************/
73
74 #include <nuttx/config.h>
75
76 #include <stdint.h>
77 #include <stdbool.h>
78
79 #include "nxconfig.hxx"
80 #include "cwidgetcontrol.hxx"
81 #include "csliderverticalgrip.hxx"
82 #include "cgraphicsport.hxx"
83
84 /****************************************************************************
85 * Pre-Processor Definitions
86 ****************************************************************************/
87
88 /****************************************************************************
89 * Method Implementations
90 ****************************************************************************/
91
92 using namespace NXWidgets;
93 /**
94 * Constructor.
95 *
96 * @param pWidgetControl The controlling widget for the display
97 * @param x The x coordinate of the grip, relative to its parent.
98 * @param y The y coordinate of the grip, relative to its parent.
99 * @param width The width of the grip.
100 * @param height The height of the grip.
101 */
102
103 CSliderVerticalGrip::CSliderVerticalGrip(CWidgetControl *pWidgetControl,
104 nxgl_coord_t x, nxgl_coord_t y,
105 nxgl_coord_t width, nxgl_coord_t height)
106 : CNxWidget(pWidgetControl, x, y, width, height, WIDGET_DRAGGABLE)
107 {
108 }
109
110 /**
111 * Draw the area of this widget that falls within the clipping region.
112 * Called by the redraw() function to draw all visible regions.
113 *
114 * @param port The CGraphicsPort to draw to.
115 * @see redraw()
116 */
117
118 void CSliderVerticalGrip::drawContents(CGraphicsPort *port)
119 {
120 CRect rect;
121 getRect(rect);
122
123 nxwidget_pixel_t color;
124 if (!m_flags.clicked)
125 {
126 color = getSelectedBackgroundColor();
127 }
128 else
129 {
130 color = getHighlightColor();
131 }
132
133 port->drawFilledRect(rect.getX(), rect.getY(),
134 rect.getWidth(), rect.getHeight(),
135 color);
136 }
137
138 /**
139 * Draw the area of this widget that falls within the clipping region.
140 * Called by the redraw() function to draw all visible regions.
141 *
142 * @param port The CGraphicsPort to draw to.
143 * @see redraw()
144 */
145
146 void CSliderVerticalGrip::drawBorder(CGraphicsPort *port)
147 {
148 // Stop drawing if the widget indicates it should not have an outline
149
150 if (!isBorderless())
151 {
152 if (isClicked())
153 {
154 port->drawBevelledRect(getX(), getY(), getWidth(), getHeight(),
155 getShadowEdgeColor(), getShineEdgeColor());
156 }
157 else
158 {
159 port->drawBevelledRect(getX(), getY(), getWidth(), getHeight(),
160 getShineEdgeColor(), getShadowEdgeColor());
161 }
162 }
163 }
164
165 /**
166 * Starts dragging the grip and redraws it.
167 *
168 * @param x The x coordinate of the click.
169 * @param y The y coordinate of the click.
170 */
171
172 void CSliderVerticalGrip::onClick(nxgl_coord_t x, nxgl_coord_t y)
173 {
174 startDragging(x, y);
175 redraw();
176 }
177
178 /**
179 * Redraws the grip.
180 *
181 * @param x The x coordinate of the mouse.
182 * @param y The y coordinate of the mouse.
183 */
184
185 void CSliderVerticalGrip::onRelease(nxgl_coord_t x, nxgl_coord_t y)
186 {
187 redraw();
188 }
189
190 /**
191 * Redraws the grip.
192 *
193 * @param x The x coordinate of the mouse.
194 * @param y The y coordinate of the mouse.
195 */
196
197 void CSliderVerticalGrip::onReleaseOutside(nxgl_coord_t x, nxgl_coord_t y)
198 {
199 redraw();
200 }
201
202 /**
203 * Moves the grip to follow the mouse.
204 *
205 * @param x The x coordinate of the mouse.
206 * @param y The y coordinate of the mouse.
207 * @param vX The horizontal distance of the drag.
208 * @param vY The vertical distance of the drag.
209 */
210
211 void CSliderVerticalGrip::onDrag(nxgl_coord_t x, nxgl_coord_t y,
212 nxgl_coord_t vX, nxgl_coord_t vY)
213 {
214 // Work out where we're moving to
215
216 nxgl_coord_t destY = y - m_grabPointY - m_parent->getY();
217
218 // Do we need to move?
219
220 if (destY != m_rect.getY())
221 {
222 // Get parent rect
223
224 CRect rect;
225 m_parent->getClientRect(rect);
226
227 // Prevent grip from moving outside parent
228
229 if (destY < rect.getY())
230 {
231 destY = rect.getY();
232 }
233 else
234 {
235 if (destY + getHeight() > rect.getHeight() + rect.getY())
236 {
237 destY = (rect.getHeight() + rect.getY()) - getHeight();
238 }
239 }
240
241 // Move to new location
242
243 moveTo(rect.getX(), destY);
244 }
245 }
NXWidgets::CNxWidget
Definition: cnxwidget.hxx:121
NXWidgets::CNxWidget::isClicked
bool isClicked(void) const
Definition: cnxwidget.hxx:560
NXWidgets::CNxWidget::isBorderless
bool isBorderless(void) const
Definition: cnxwidget.hxx:549
NXWidgets::CNxWidget::getShadowEdgeColor
nxgl_mxpixel_t getShadowEdgeColor(void) const
Definition: cnxwidget.hxx:749
NXWidgets::CRect::getHeight
nxgl_coord_t getHeight(void) const
Definition: crect.hxx:204
NXWidgets::CNxWidget::moveTo
bool moveTo(nxgl_coord_t x, nxgl_coord_t y)
Definition: cnxwidget.cxx:990
NXWidgets::CNxWidget::m_grabPointY
nxgl_coord_t m_grabPointY
Definition: cnxwidget.hxx:177
NXWidgets::CWidgetControl
Definition: cwidgetcontrol.hxx:95
NXWidgets::CNxWidget::getRect
void getRect(CRect &rect) const
Definition: cnxwidget.cxx:448
NXWidgets::CRect::getWidth
nxgl_coord_t getWidth(void) const
Definition: crect.hxx:181
NXWidgets::CGraphicsPort::drawBevelledRect
void drawBevelledRect(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width, nxgl_coord_t height, nxgl_mxpixel_t shineColor, nxgl_mxpixel_t shadowColor)
Definition: cgraphicsport.cxx:323
NXWidgets::CRect::getX
nxgl_coord_t getX(void) const
Definition: crect.hxx:160
NXWidgets::CSliderVerticalGrip::drawBorder
virtual void drawBorder(CGraphicsPort *port)
Definition: csliderverticalgrip.cxx:146
cgraphicsport.hxx
NXWidgets::CSliderVerticalGrip::CSliderVerticalGrip
CSliderVerticalGrip(const CSliderVerticalGrip &sliderVerticalGrip)
Definition: csliderverticalgrip.hxx:172
NXWidgets::CSliderVerticalGrip::onDrag
virtual void onDrag(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t vX, nxgl_coord_t vY)
Definition: csliderverticalgrip.cxx:211
cwidgetcontrol.hxx
NXWidgets::nxwidget_pixel_t
uint8_t nxwidget_pixel_t
Definition: nxconfig.hxx:442
NXWidgets::CNxWidget::redraw
void redraw(void)
Definition: cnxwidget.cxx:483
csliderverticalgrip.hxx
NXWidgets::CSliderVerticalGrip::onClick
virtual void onClick(nxgl_coord_t x, nxgl_coord_t y)
Definition: csliderverticalgrip.cxx:172
NXWidgets
Definition: cbgwindow.hxx:65
NXWidgets::CNxWidget::getHeight
nxgl_coord_t getHeight(void) const
Definition: cnxwidget.hxx:593
NXWidgets::CNxWidget::m_rect
CRect m_rect
Definition: cnxwidget.hxx:172
NXWidgets::CNxWidget::getClientRect
void getClientRect(CRect &rect) const
Definition: cnxwidget.cxx:421
NXWidgets::CSliderVerticalGrip::onRelease
virtual void onRelease(nxgl_coord_t x, nxgl_coord_t y)
Definition: csliderverticalgrip.cxx:185
NXWidgets::CSliderVerticalGrip::drawContents
virtual void drawContents(CGraphicsPort *port)
Definition: csliderverticalgrip.cxx:118
nxconfig.hxx
NXWidgets::CNxWidget::getSelectedBackgroundColor
nxgl_mxpixel_t getSelectedBackgroundColor(void) const
Definition: cnxwidget.hxx:727
NXWidgets::CGraphicsPort::drawFilledRect
void drawFilledRect(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width, nxgl_coord_t height, nxgl_mxpixel_t color)
Definition: cgraphicsport.cxx:280
NXWidgets::CNxWidget::getShineEdgeColor
nxgl_mxpixel_t getShineEdgeColor(void) const
Definition: cnxwidget.hxx:738
NXWidgets::CRect
Definition: crect.hxx:101
NXWidgets::CNxWidget::getHighlightColor
nxgl_mxpixel_t getHighlightColor(void) const
Definition: cnxwidget.hxx:760
NXWidgets::CNxWidget::getY
nxgl_coord_t getY(void) const
Definition: cnxwidget.cxx:261
NXWidgets::CNxWidget::getWidth
nxgl_coord_t getWidth(void) const
Definition: cnxwidget.hxx:582
NXWidgets::CNxWidget::getX
nxgl_coord_t getX(void) const
Definition: cnxwidget.cxx:245
NXWidgets::CRect::getY
nxgl_coord_t getY(void) const
Definition: crect.hxx:170
NXWidgets::CNxWidget::Flags::clicked
uint8_t clicked
Definition: cnxwidget.hxx:144
NXWidgets::CSliderVerticalGrip::onReleaseOutside
virtual void onReleaseOutside(nxgl_coord_t x, nxgl_coord_t y)
Definition: csliderverticalgrip.cxx:197
NXWidgets::CNxWidget::startDragging
void startDragging(nxgl_coord_t x, nxgl_coord_t y)
Definition: cnxwidget.cxx:1542
NXWidgets::CNxWidget::m_parent
CNxWidget * m_parent
Definition: cnxwidget.hxx:202
NXWidgets::CGraphicsPort
Definition: cgraphicsport.hxx:106
NXWidgets::CNxWidget::m_flags
Flags m_flags
Definition: cnxwidget.hxx:187