Sample GUI for LPC4088. Base code to begin dev
Dependencies: DMBasicGUI DMSupport
Fork of lpc4088_displaymodule_shipped_demo by
Diff: AppDraw.cpp
- Revision:
- 0:b94e330c98ac
diff -r 000000000000 -r b94e330c98ac AppDraw.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/AppDraw.cpp Fri Mar 20 13:36:44 2015 +0000 @@ -0,0 +1,151 @@ +/* + * Copyright 2014 Embedded Artists AB + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + +#include "mbed.h" +#include "EthernetInterface.h" +#include "AppDraw.h" +#include "lpc_swim_font.h" +#include "lpc_colors.h" + +/****************************************************************************** + * Defines and typedefs + *****************************************************************************/ + +#define BTN_OFF 20 + +/****************************************************************************** + * Local variables + *****************************************************************************/ + +static const COLOR_T COLORS[] = { + RED, + GREEN, + BLUE, + CYAN, + MAGENTA, + YELLOW, + BLACK, +}; + +/****************************************************************************** + * Private functions + *****************************************************************************/ + +static void buttonClicked(uint32_t x) +{ + bool* done = (bool*)x; + *done = true; +} + +void AppDraw::draw() +{ + // Prepare fullscreen + swim_window_open(_win, + _disp->width(), _disp->height(), // full size + (COLOR_T*)_fb, + 0,0,_disp->width()-1, _disp->height()-1, // window position and size + 0, // border + WHITE, WHITE, BLACK); // colors: pen, backgr, forgr + + _btn = new ImageButton(_win->fb, _win->xpmax - BTN_OFF - _resOk->width(), _win->ypmax - BTN_OFF - _resOk->height(), _resOk->width(), _resOk->height()); + _btn->loadImages(_resOk); + _btn->draw(); +} + +/****************************************************************************** + * Public functions + *****************************************************************************/ + +AppDraw::AppDraw() : _disp(NULL), _win(NULL), _fb(NULL), _btn(NULL), _resOk(NULL) +{ +} + +AppDraw::~AppDraw() +{ + teardown(); +} + +bool AppDraw::setup() +{ + _disp = DMBoard::instance().display(); + _win = (SWIM_WINDOW_T*)malloc(sizeof(SWIM_WINDOW_T)); + _fb = _disp->allocateFramebuffer(); + + return (_win != NULL && _fb != NULL); +} + +void AppDraw::runToCompletion() +{ + // Alternative 1: use the calling thread's context to run in + bool done = false; + draw(); + _btn->setAction(buttonClicked, (uint32_t)&done); + void* oldFB = _disp->swapFramebuffer(_fb); + + // Wait for touches + TouchPanel* touch = DMBoard::instance().touchPanel(); + bool ignore; + int fingers = 0; + touch->info(&ignore, &fingers, &ignore); + if (fingers > MaxSupportedFingers) { + fingers = MaxSupportedFingers; + } + while(!done) { + // wait for a new touch signal (signal is sent from AppLauncher, + // which listens for touch events) + Thread::signal_wait(0x1); + if (touch->read(_coords, fingers) == TouchPanel::TouchError_Ok) { + for (int i = 0; i < fingers; i++) { + if (_coords[i].z > 0) { + _win->pen = COLORS[i]; + swim_put_circle(_win, _coords[i].x, _coords[i].y, 2, 1); + } + } + if (_btn->handle(_coords[0].x, _coords[0].y, _coords[0].z > 0)) { + _btn->draw(); + } + } + } + + // User has clicked the button, restore the original FB + _disp->swapFramebuffer(oldFB); + swim_window_close(_win); +} + +bool AppDraw::teardown() +{ + if (_win != NULL) { + free(_win); + _win = NULL; + } + if (_fb != NULL) { + free(_fb); + _fb = NULL; + } + if (_btn != NULL) { + delete _btn; + _btn = NULL; + } + return true; +} + + +void AppDraw::addResource(Resources id, Resource* res) +{ + _resOk = res; +} +