A basic graphics package for the LPC4088 Display Module.
Dependents: lpc4088_displaymodule_demo_sphere sampleGUI sampleEmptyGUI lpc4088_displaymodule_fs_aid ... more
Fork of DMBasicGUI by
Application/AppColorPicker.cpp
- Committer:
- embeddedartists
- Date:
- 2019-11-04
- Revision:
- 22:f0d00f29bfeb
- Parent:
- 21:0038059e3a8f
File content as of revision 22:f0d00f29bfeb:
/* * 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 "AppColorPicker.h" #include "lpc_swim_font.h" /****************************************************************************** * Defines and typedefs *****************************************************************************/ #define BOX_SIDE 192 #define BTN_OFF 20 /****************************************************************************** * Global variables *****************************************************************************/ /****************************************************************************** * Private functions *****************************************************************************/ static void buttonClicked(uint32_t x) { bool* done = (bool*)x; *done = true; } void AppColorPicker::draw() { // Prepare fullscreen swim_window_open(_win, _disp->width(), _disp->height(), // full size _fb, 0,0,_disp->width()-1, _disp->height()-1, // window position and size 1, // border WHITE, WHITE, BLACK); // colors: pen, backgr, forgr swim_set_title(_win, "Color Picker", BLACK); swim_window_open(_colorwin, _disp->width(), _disp->height(), // full size _fb, 50,(_disp->height()-BOX_SIDE)/2,50+BOX_SIDE-1, BOX_SIDE+(_disp->height()-BOX_SIDE)/2, // window position and size 0, // border WHITE, WHITE, BLACK); // colors: pen, backgr, forgr uint16_t r, g, b; uint16_t rx = BOX_SIDE/32; uint16_t bx = BOX_SIDE/32; uint16_t gy = BOX_SIDE/64; uint16_t color; for (int x = 0; x < BOX_SIDE; x++) { r = (x/rx); b = 0x1f - (x/bx); color = ((r & 0x1f) << 11) | ((b & 0x1f) << 0); for (int y = 0; y < BOX_SIDE; y++) { g = (y/gy); _colorwin->pen = color | ((g & 0x3f) << 5); swim_put_pixel(_colorwin, x, y); } } _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(); // Copy everything onto the back buffer memcpy(_fb2, _fb, _disp->fbSize()); } /****************************************************************************** * Public functions *****************************************************************************/ AppColorPicker::AppColorPicker() : _disp(NULL), _win(NULL), _colorwin(NULL), _fb(NULL), _fb2(NULL), _btn(NULL), _resOk(NULL) { if (DMBoard::instance().display()->width() == 480) { _resultX = 350; _resultY = 70; _resultW = 80; _resultH = 80; } else { _resultW = 80*2; _resultH = 80*2; _resultX = 350; _resultY = (DMBoard::instance().display()->height() - (_resultH + 50))/2; } } AppColorPicker::~AppColorPicker() { teardown(); } bool AppColorPicker::setup() { _disp = DMBoard::instance().display(); _win = (SWIM_WINDOW_T*)malloc(sizeof(SWIM_WINDOW_T)); _colorwin = (SWIM_WINDOW_T*)malloc(sizeof(SWIM_WINDOW_T)); _fb = (COLOR_T*)_disp->allocateFramebuffer(); _fb2 = (COLOR_T*)_disp->allocateFramebuffer(); return (_win != NULL && _colorwin != NULL && _fb != NULL && _fb2 != NULL); } void AppColorPicker::runToCompletion() { bool done = false; draw(); _btn->setAction(buttonClicked, (uint32_t)&done); void* oldFB = _disp->swapFramebuffer(_fb2); // Wait for touches TouchPanel* touch = DMBoard::instance().touchPanel(); touch_coordinate_t coord; char buf[10]; swim_set_pen_color(_win, BLACK); bool showingFB2 = true; COLOR_T lastColor = WHITE; while(!done) { // wait for a new touch signal (signal is sent from AppLauncher, // which listens for touch events) ThisThread::flags_wait_any(0x1); if (touch->read(coord) == TouchPanel::TouchError_Ok) { if (coord.z > 0 && coord.x >= _colorwin->xpmin && coord.x <= _colorwin->xpmax && coord.y >= _colorwin->ypmin && coord.y <= _colorwin->ypmax) { int x = coord.x - _colorwin->xpmin; int y = coord.y - _colorwin->ypmin; COLOR_T c = ((x/(BOX_SIDE/32))<<11) | ((y/(BOX_SIDE/64))<<5) | ((0x1f-(x/(BOX_SIDE/32)))<<0); if (c != lastColor) { swim_set_fill_color(_win, c); swim_put_box(_win, _resultX, _resultY, _resultX+_resultW, _resultY+_resultH); sprintf(buf, "0x%04x ", c); swim_put_text_xy(_win, buf, _resultX, _resultY+_resultH+10); // Swap what is shown and what is drawn on if (showingFB2) { _disp->setFramebuffer(_fb); _win->fb = _fb2; } else { _disp->setFramebuffer(_fb2); _win->fb = _fb; } ThisThread::sleep_for(20); showingFB2 = !showingFB2; lastColor = c; } } if (_btn->handle(coord.x, coord.y, coord.z > 0)) { _btn->draw(showingFB2 ? _fb2 : _fb); } } } // User has clicked the button, restore the original FB _disp->swapFramebuffer(oldFB); swim_window_close(_win); swim_window_close(_colorwin); } bool AppColorPicker::teardown() { if (_win != NULL) { free(_win); _win = NULL; } if (_colorwin != NULL) { free(_colorwin); _colorwin = NULL; } if (_fb != NULL) { free(_fb); _fb = NULL; } if (_fb2 != NULL) { free(_fb2); _fb2 = NULL; } if (_btn != NULL) { delete _btn; _btn = NULL; } return true; } void AppColorPicker::addResource(Resources id, Resource* res) { _resOk = res; }