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@0:4977187e90c7, 2014-12-11 (annotated)

Committer:
embeddedartists
Date:
Thu Dec 11 11:03:57 2014 +0000
Revision:
0:4977187e90c7
Child:
1:46c8df4608c8
First version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:4977187e90c7 1 #include "Button.h"
embeddedartists 0:4977187e90c7 2 #include "mbed.h"
embeddedartists 0:4977187e90c7 3 #include "DMBoard.h"
embeddedartists 0:4977187e90c7 4
embeddedartists 0:4977187e90c7 5 #include "lpc_swim_font.h"
embeddedartists 0:4977187e90c7 6
embeddedartists 0:4977187e90c7 7 Button::Button(const char* caption, COLOR_T* fb, uint16_t x, uint16_t y, uint16_t width, uint16_t height) :
embeddedartists 0:4977187e90c7 8 _caption(caption), _capx(0), _capy(0),
embeddedartists 0:4977187e90c7 9 _bgCol(GREEN), _fgCol(BLACK),
embeddedartists 0:4977187e90c7 10 _bgColPressed(BLACK), _fgColPressed(GREEN)
embeddedartists 0:4977187e90c7 11 {
embeddedartists 0:4977187e90c7 12 _enabled = true;
embeddedartists 0:4977187e90c7 13 _pressed = false;
embeddedartists 0:4977187e90c7 14 _func = NULL;
embeddedartists 0:4977187e90c7 15
embeddedartists 0:4977187e90c7 16 Display* disp = DMBoard::instance().display();
embeddedartists 0:4977187e90c7 17
embeddedartists 0:4977187e90c7 18 swim_window_open_noclear(
embeddedartists 0:4977187e90c7 19 &_win,
embeddedartists 0:4977187e90c7 20 disp->width(), disp->height(), // full size
embeddedartists 0:4977187e90c7 21 fb,
embeddedartists 0:4977187e90c7 22 x, y, x+width-1, y+height-1, // window position and size
embeddedartists 0:4977187e90c7 23 0, // border
embeddedartists 0:4977187e90c7 24 _fgCol, _bgCol, _fgCol); // colors: pen, backgr, forgr
embeddedartists 0:4977187e90c7 25
embeddedartists 0:4977187e90c7 26 swim_set_font_transparency(&_win, 1);
embeddedartists 0:4977187e90c7 27 setCaption(caption);
embeddedartists 0:4977187e90c7 28 }
embeddedartists 0:4977187e90c7 29
embeddedartists 0:4977187e90c7 30 void Button::setCaption(const char* caption)
embeddedartists 0:4977187e90c7 31 {
embeddedartists 0:4977187e90c7 32 int w, h;
embeddedartists 0:4977187e90c7 33 _caption = caption;
embeddedartists 0:4977187e90c7 34 swim_get_string_bounds(&_win, _caption, &w, &h);
embeddedartists 0:4977187e90c7 35 _capx = (_win.xpmax-_win.xpmin-w)/2;
embeddedartists 0:4977187e90c7 36 _capy = (_win.ypmax-_win.ypmin-h)/2;
embeddedartists 0:4977187e90c7 37 }
embeddedartists 0:4977187e90c7 38
embeddedartists 0:4977187e90c7 39 void Button::setColors(COLOR_T bg, COLOR_T fg, COLOR_T bgPressed, COLOR_T fgPressed)
embeddedartists 0:4977187e90c7 40 {
embeddedartists 0:4977187e90c7 41 _bgCol = bg;
embeddedartists 0:4977187e90c7 42 _fgCol = fg;
embeddedartists 0:4977187e90c7 43 _bgColPressed = bgPressed;
embeddedartists 0:4977187e90c7 44 _fgColPressed = fgPressed;
embeddedartists 0:4977187e90c7 45 }
embeddedartists 0:4977187e90c7 46
embeddedartists 0:4977187e90c7 47 bool Button::handle(uint16_t x, uint16_t y, bool pressed)
embeddedartists 0:4977187e90c7 48 {
embeddedartists 0:4977187e90c7 49 bool needsRepaint = false;
embeddedartists 0:4977187e90c7 50 if (_enabled) {
embeddedartists 0:4977187e90c7 51 if (!pressed && _pressed) {
embeddedartists 0:4977187e90c7 52 // user released => click
embeddedartists 0:4977187e90c7 53 needsRepaint = true;
embeddedartists 0:4977187e90c7 54 _pressed = false;
embeddedartists 0:4977187e90c7 55 if (_func != NULL) {
embeddedartists 0:4977187e90c7 56 _func(_funcArg);
embeddedartists 0:4977187e90c7 57 }
embeddedartists 0:4977187e90c7 58 }
embeddedartists 0:4977187e90c7 59 else if ((x >= _win.xpmin) && (y >= _win.ypmin) && (x <= _win.xpmax) && (y <= _win.ypmax)) {
embeddedartists 0:4977187e90c7 60 if (pressed && !_pressed) {
embeddedartists 0:4977187e90c7 61 // user pressing inside area
embeddedartists 0:4977187e90c7 62 needsRepaint = true;
embeddedartists 0:4977187e90c7 63 _pressed = true;
embeddedartists 0:4977187e90c7 64 }
embeddedartists 0:4977187e90c7 65 }
embeddedartists 0:4977187e90c7 66 else if (_pressed) {
embeddedartists 0:4977187e90c7 67 // pressed but moved outside of the button area
embeddedartists 0:4977187e90c7 68 needsRepaint = true;
embeddedartists 0:4977187e90c7 69 _pressed = false;
embeddedartists 0:4977187e90c7 70 }
embeddedartists 0:4977187e90c7 71 }
embeddedartists 0:4977187e90c7 72 return needsRepaint;
embeddedartists 0:4977187e90c7 73 }
embeddedartists 0:4977187e90c7 74
embeddedartists 0:4977187e90c7 75 void Button::draw()
embeddedartists 0:4977187e90c7 76 {
embeddedartists 0:4977187e90c7 77 if (_pressed) {
embeddedartists 0:4977187e90c7 78 swim_set_pen_color(&_win, _fgColPressed);
embeddedartists 0:4977187e90c7 79 swim_set_bkg_color(&_win, _bgColPressed);
embeddedartists 0:4977187e90c7 80 swim_set_fill_color(&_win, _fgColPressed);
embeddedartists 0:4977187e90c7 81 swim_clear_screen(&_win, _bgColPressed);
embeddedartists 0:4977187e90c7 82 } else {
embeddedartists 0:4977187e90c7 83 swim_set_pen_color(&_win, _fgCol);
embeddedartists 0:4977187e90c7 84 swim_set_bkg_color(&_win, _bgCol);
embeddedartists 0:4977187e90c7 85 swim_set_fill_color(&_win, _fgCol);
embeddedartists 0:4977187e90c7 86 swim_clear_screen(&_win, _bgCol);
embeddedartists 0:4977187e90c7 87 }
embeddedartists 0:4977187e90c7 88 swim_put_text_xy(&_win, _caption, _capx, _capy);
embeddedartists 0:4977187e90c7 89 }
embeddedartists 0:4977187e90c7 90