Embedded Artists / DMBasicGUI

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 EmbeddedArtists AB

Application/Button.cpp@1:46c8df4608c8, 2014-12-11 (annotated)

Committer:
embeddedartists
Date:
Thu Dec 11 18:15:52 2014 +0000
Revision:
1:46c8df4608c8
Parent:
0:4977187e90c7
Child:
2:efae611de184
Updated documentation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 1:46c8df4608c8 1 /*
embeddedartists 1:46c8df4608c8 2 * Copyright 2014 Embedded Artists AB
embeddedartists 1:46c8df4608c8 3 *
embeddedartists 1:46c8df4608c8 4 * Licensed under the Apache License, Version 2.0 (the "License");
embeddedartists 1:46c8df4608c8 5 * you may not use this file except in compliance with the License.
embeddedartists 1:46c8df4608c8 6 * You may obtain a copy of the License at
embeddedartists 1:46c8df4608c8 7 *
embeddedartists 1:46c8df4608c8 8 * http://www.apache.org/licenses/LICENSE-2.0
embeddedartists 1:46c8df4608c8 9 *
embeddedartists 1:46c8df4608c8 10 * Unless required by applicable law or agreed to in writing, software
embeddedartists 1:46c8df4608c8 11 * distributed under the License is distributed on an "AS IS" BASIS,
embeddedartists 1:46c8df4608c8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
embeddedartists 1:46c8df4608c8 13 * See the License for the specific language governing permissions and
embeddedartists 1:46c8df4608c8 14 * limitations under the License.
embeddedartists 1:46c8df4608c8 15 */
embeddedartists 1:46c8df4608c8 16
embeddedartists 0:4977187e90c7 17 #include "Button.h"
embeddedartists 0:4977187e90c7 18 #include "mbed.h"
embeddedartists 0:4977187e90c7 19 #include "DMBoard.h"
embeddedartists 0:4977187e90c7 20
embeddedartists 0:4977187e90c7 21 #include "lpc_swim_font.h"
embeddedartists 0:4977187e90c7 22
embeddedartists 0:4977187e90c7 23 Button::Button(const char* caption, COLOR_T* fb, uint16_t x, uint16_t y, uint16_t width, uint16_t height) :
embeddedartists 0:4977187e90c7 24 _caption(caption), _capx(0), _capy(0),
embeddedartists 0:4977187e90c7 25 _bgCol(GREEN), _fgCol(BLACK),
embeddedartists 0:4977187e90c7 26 _bgColPressed(BLACK), _fgColPressed(GREEN)
embeddedartists 0:4977187e90c7 27 {
embeddedartists 0:4977187e90c7 28 _enabled = true;
embeddedartists 0:4977187e90c7 29 _pressed = false;
embeddedartists 0:4977187e90c7 30 _func = NULL;
embeddedartists 0:4977187e90c7 31
embeddedartists 0:4977187e90c7 32 Display* disp = DMBoard::instance().display();
embeddedartists 0:4977187e90c7 33
embeddedartists 0:4977187e90c7 34 swim_window_open_noclear(
embeddedartists 0:4977187e90c7 35 &_win,
embeddedartists 0:4977187e90c7 36 disp->width(), disp->height(), // full size
embeddedartists 0:4977187e90c7 37 fb,
embeddedartists 0:4977187e90c7 38 x, y, x+width-1, y+height-1, // window position and size
embeddedartists 0:4977187e90c7 39 0, // border
embeddedartists 0:4977187e90c7 40 _fgCol, _bgCol, _fgCol); // colors: pen, backgr, forgr
embeddedartists 0:4977187e90c7 41
embeddedartists 0:4977187e90c7 42 swim_set_font_transparency(&_win, 1);
embeddedartists 0:4977187e90c7 43 setCaption(caption);
embeddedartists 0:4977187e90c7 44 }
embeddedartists 0:4977187e90c7 45
embeddedartists 0:4977187e90c7 46 void Button::setCaption(const char* caption)
embeddedartists 0:4977187e90c7 47 {
embeddedartists 0:4977187e90c7 48 int w, h;
embeddedartists 0:4977187e90c7 49 _caption = caption;
embeddedartists 0:4977187e90c7 50 swim_get_string_bounds(&_win, _caption, &w, &h);
embeddedartists 0:4977187e90c7 51 _capx = (_win.xpmax-_win.xpmin-w)/2;
embeddedartists 0:4977187e90c7 52 _capy = (_win.ypmax-_win.ypmin-h)/2;
embeddedartists 0:4977187e90c7 53 }
embeddedartists 0:4977187e90c7 54
embeddedartists 0:4977187e90c7 55 void Button::setColors(COLOR_T bg, COLOR_T fg, COLOR_T bgPressed, COLOR_T fgPressed)
embeddedartists 0:4977187e90c7 56 {
embeddedartists 0:4977187e90c7 57 _bgCol = bg;
embeddedartists 0:4977187e90c7 58 _fgCol = fg;
embeddedartists 0:4977187e90c7 59 _bgColPressed = bgPressed;
embeddedartists 0:4977187e90c7 60 _fgColPressed = fgPressed;
embeddedartists 0:4977187e90c7 61 }
embeddedartists 0:4977187e90c7 62
embeddedartists 0:4977187e90c7 63 bool Button::handle(uint16_t x, uint16_t y, bool pressed)
embeddedartists 0:4977187e90c7 64 {
embeddedartists 0:4977187e90c7 65 bool needsRepaint = false;
embeddedartists 0:4977187e90c7 66 if (_enabled) {
embeddedartists 0:4977187e90c7 67 if (!pressed && _pressed) {
embeddedartists 0:4977187e90c7 68 // user released => click
embeddedartists 0:4977187e90c7 69 needsRepaint = true;
embeddedartists 0:4977187e90c7 70 _pressed = false;
embeddedartists 0:4977187e90c7 71 if (_func != NULL) {
embeddedartists 0:4977187e90c7 72 _func(_funcArg);
embeddedartists 0:4977187e90c7 73 }
embeddedartists 0:4977187e90c7 74 }
embeddedartists 0:4977187e90c7 75 else if ((x >= _win.xpmin) && (y >= _win.ypmin) && (x <= _win.xpmax) && (y <= _win.ypmax)) {
embeddedartists 0:4977187e90c7 76 if (pressed && !_pressed) {
embeddedartists 0:4977187e90c7 77 // user pressing inside area
embeddedartists 0:4977187e90c7 78 needsRepaint = true;
embeddedartists 0:4977187e90c7 79 _pressed = true;
embeddedartists 0:4977187e90c7 80 }
embeddedartists 0:4977187e90c7 81 }
embeddedartists 0:4977187e90c7 82 else if (_pressed) {
embeddedartists 0:4977187e90c7 83 // pressed but moved outside of the button area
embeddedartists 0:4977187e90c7 84 needsRepaint = true;
embeddedartists 0:4977187e90c7 85 _pressed = false;
embeddedartists 0:4977187e90c7 86 }
embeddedartists 0:4977187e90c7 87 }
embeddedartists 0:4977187e90c7 88 return needsRepaint;
embeddedartists 0:4977187e90c7 89 }
embeddedartists 0:4977187e90c7 90
embeddedartists 0:4977187e90c7 91 void Button::draw()
embeddedartists 0:4977187e90c7 92 {
embeddedartists 0:4977187e90c7 93 if (_pressed) {
embeddedartists 0:4977187e90c7 94 swim_set_pen_color(&_win, _fgColPressed);
embeddedartists 0:4977187e90c7 95 swim_set_bkg_color(&_win, _bgColPressed);
embeddedartists 0:4977187e90c7 96 swim_set_fill_color(&_win, _fgColPressed);
embeddedartists 0:4977187e90c7 97 swim_clear_screen(&_win, _bgColPressed);
embeddedartists 0:4977187e90c7 98 } else {
embeddedartists 0:4977187e90c7 99 swim_set_pen_color(&_win, _fgCol);
embeddedartists 0:4977187e90c7 100 swim_set_bkg_color(&_win, _bgCol);
embeddedartists 0:4977187e90c7 101 swim_set_fill_color(&_win, _fgCol);
embeddedartists 0:4977187e90c7 102 swim_clear_screen(&_win, _bgCol);
embeddedartists 0:4977187e90c7 103 }
embeddedartists 0:4977187e90c7 104 swim_put_text_xy(&_win, _caption, _capx, _capy);
embeddedartists 0:4977187e90c7 105 }