///////////////////////////////////////////////////////////////////////////// // NxWidgets/UnitTests/CListBox/clistboxtest.cxx // // Copyright (C) 2012 Gregory Nutt. All rights reserved. // Author: Gregory Nutt // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions // are met: // // 1. Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // 2. Redistributions in binary form must reproduce the above copyright // notice, this list of conditions and the following disclaimer in // the documentation and/or other materials provided with the // distribution. // 3. Neither the name NuttX, NxWidgets, nor the names of its contributors // me be used to endorse or promote products derived from this software // without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE // COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, // BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS // OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED // AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE // POSSIBILITY OF SUCH DAMAGE. // ////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // Included Files ///////////////////////////////////////////////////////////////////////////// #include #include #include #include #include #include #include #include "nxconfig.hxx" #include "cbgwindow.hxx" #include "clistboxtest.hxx" ///////////////////////////////////////////////////////////////////////////// // Definitions ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // Private Classes ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // Private Data ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // Public Data ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // Public Function Prototypes ///////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////// // CListBoxTest Method Implementations ///////////////////////////////////////////////////////////////////////////// // CListBoxTest Constructor CListBoxTest::CListBoxTest() { // Initialize state data m_widgetControl = (CWidgetControl *)NULL; m_bgWindow = (CBgWindow *)NULL; } // CListBoxTest Descriptor CListBoxTest::~CListBoxTest(void) { disconnect(); } // Connect to the NX server bool CListBoxTest::connect(void) { // Connect to the server bool nxConnected = CNxServer::connect(); if (nxConnected) { // Set the background color if (!setBackgroundColor(CONFIG_CLISTBOXTEST_BGCOLOR)) { printf("CListBoxTest::connect: setBackgroundColor failed\n"); } } return nxConnected; } // Disconnect from the NX server void CListBoxTest::disconnect(void) { // Close the window if (m_bgWindow) { delete m_bgWindow; m_bgWindow = (CBgWindow *)NULL; } // Free the widget control instance if (m_widgetControl) { delete m_widgetControl; m_widgetControl = (CWidgetControl *)NULL; } // And disconnect from the server CNxServer::disconnect(); } // Create the background window instance. This function illustrates // the basic steps to instantiate any window: // // 1) Create a dumb CWigetControl instance // 2) Pass the dumb CWidgetControl instance to the window constructor // that inherits from INxWindow. This will "smarten" the CWidgetControl // instance with some window knowlede // 3) Call the open() method on the window to display the window. // 4) After that, the fully smartened CWidgetControl instance can // be used to generate additional widgets by passing it to the // widget constructor bool CListBoxTest::createWindow(void) { // Initialize the widget control using the default style m_widgetControl = new CWidgetControl((CWidgetStyle *)NULL); // Get an (uninitialized) instance of the background window as a class // that derives from INxWindow. m_bgWindow = getBgWindow(m_widgetControl); if (!m_bgWindow) { printf("CListBoxTest::createWindow: Failed to create CBgWindow instance\n"); disconnect(); return false; } // Open (and initialize) the window bool success = m_bgWindow->open(); if (!success) { printf("CListBoxTest::createWindow: Failed to open background window\n"); disconnect(); return false; } return true; } // Create a listbox in the center of the window CListBox *CListBoxTest::createListBox(void) { // Get the size of the display struct nxgl_size_s windowSize; if (!m_bgWindow->getSize(&windowSize)) { printf("CListBoxTest::createListBox: Failed to get window size\n"); disconnect(); return false; } // Put the listbox in the center of the display nxgl_coord_t listboxWidth = windowSize.w >> 1; nxgl_coord_t listboxX = windowSize.w >> 2; nxgl_coord_t listboxHeight = windowSize.h >> 1; nxgl_coord_t listboxY = windowSize.h >> 2; // Create the listbox CListBox *listbox = new CListBox(m_widgetControl, listboxX, listboxY, listboxWidth, listboxHeight); if (!listbox) { printf("CListBoxTest::createListBox: Failed to create CListBox\n"); disconnect(); } return listbox; } // (Re-)draw the listbox. void CListBoxTest::showListBox(CListBox *listbox) { listbox->enable(); // Un-necessary, the widget is enabled by default listbox->enableDrawing(); listbox->redraw(); }