SSD1306 OLED display driver  1.7.16
This library is developed to control SSD1306/SSD1331/SSD1351/IL9163/PCD8554 RGB i2c/spi LED displays
ssd1306_menu.c
1 /*
2  MIT License
3 
4  Copyright (c) 2017-2019, Alexey Dynda
5 
6  Permission is hereby granted, free of charge, to any person obtaining a copy
7  of this software and associated documentation files (the "Software"), to deal
8  in the Software without restriction, including without limitation the rights
9  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10  copies of the Software, and to permit persons to whom the Software is
11  furnished to do so, subject to the following conditions:
12 
13  The above copyright notice and this permission notice shall be included in all
14  copies or substantial portions of the Software.
15 
16  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  SOFTWARE.
23 */
24 
25 #include "font6x8.h"
26 #include "ssd1306.h"
27 
28 #ifndef min
29 #define min(x,y) ((x)<(y)?(x):(y))
30 #endif
31 
32 #ifndef max
33 #define max(x,y) ((x)>(y)?(x):(y))
34 #endif
35 
36 static uint8_t getMaxScreenItems(void)
37 {
38  return (ssd1306_displayHeight() >> 3) - 2;
39 }
40 
41 void ssd1306_createMenu(SAppMenu *menu, const char **items, uint8_t count)
42 {
43  menu->items = items;
44  menu->count = count;
45  menu->selection = 0;
46  menu->oldSelection = 0;
47  menu->scrollPosition = 0;
48 }
49 
50 static uint8_t calculateScrollPosition(SAppMenu *menu, uint8_t selection)
51 {
52  if ( selection < menu->scrollPosition )
53  {
54  return selection;
55  }
56  else if ( selection - menu->scrollPosition > getMaxScreenItems() - 1)
57  {
58  return selection - getMaxScreenItems() + 1;
59  }
60  return menu->scrollPosition;
61 }
62 
63 static void drawMenuItem(SAppMenu *menu, uint8_t index)
64 {
65  if (index == menu->selection)
66  {
68  }
69  else
70  {
72  }
73  ssd1306_printFixed(8, (index - menu->scrollPosition + 1)*8, menu->items[index], STYLE_NORMAL );
75 }
76 
77 static void drawMenuItem8(SAppMenu *menu, uint8_t index)
78 {
79  if (index == menu->selection)
80  {
82  }
83  else
84  {
86  }
87  ssd1306_printFixed8(8, (index - menu->scrollPosition + 1)*8, menu->items[index], STYLE_NORMAL );
89 }
90 
91 static void drawMenuItem16(SAppMenu *menu, uint8_t index)
92 {
93  if (index == menu->selection)
94  {
96  }
97  else
98  {
100  }
101  ssd1306_printFixed16(8, (index - menu->scrollPosition + 1)*8, menu->items[index], STYLE_NORMAL );
103 }
104 
106 {
108  menu->scrollPosition = calculateScrollPosition( menu, menu->selection );
109  for (uint8_t i = menu->scrollPosition; i < min(menu->count, menu->scrollPosition + getMaxScreenItems()); i++)
110  {
111  drawMenuItem(menu, i);
112  }
113  menu->oldSelection = menu->selection;
114 }
115 
117 {
119  menu->scrollPosition = calculateScrollPosition( menu, menu->selection );
120  for (uint8_t i = menu->scrollPosition; i < min(menu->count, menu->scrollPosition + getMaxScreenItems()); i++)
121  {
122  drawMenuItem8(menu, i);
123  }
124  menu->oldSelection = menu->selection;
125 }
126 
128 {
130  menu->scrollPosition = calculateScrollPosition( menu, menu->selection );
131  for (uint8_t i = menu->scrollPosition; i < min(menu->count, menu->scrollPosition + getMaxScreenItems()); i++)
132  {
133  drawMenuItem16(menu, i);
134  }
135  menu->oldSelection = menu->selection;
136 }
137 
139 {
140  if (menu->selection != menu->oldSelection)
141  {
142  uint8_t scrollPosition = calculateScrollPosition( menu, menu->selection );
143  if ( scrollPosition != menu->scrollPosition )
144  {
146  ssd1306_showMenu(menu);
147  }
148  else
149  {
150  drawMenuItem(menu, menu->oldSelection);
151  drawMenuItem(menu, menu->selection);
152  menu->oldSelection = menu->selection;
153  }
154  }
155 }
156 
158 {
159  if (menu->selection != menu->oldSelection)
160  {
161  uint8_t scrollPosition = calculateScrollPosition( menu, menu->selection );
162  if ( scrollPosition != menu->scrollPosition )
163  {
165  ssd1306_showMenu8(menu);
166  }
167  else
168  {
169  drawMenuItem8(menu, menu->oldSelection);
170  drawMenuItem8(menu, menu->selection);
171  menu->oldSelection = menu->selection;
172  }
173  }
174 }
175 
177 {
178  if (menu->selection != menu->oldSelection)
179  {
180  uint8_t scrollPosition = calculateScrollPosition( menu, menu->selection );
181  if ( scrollPosition != menu->scrollPosition )
182  {
184  ssd1306_showMenu16(menu);
185  }
186  else
187  {
188  drawMenuItem16(menu, menu->oldSelection);
189  drawMenuItem16(menu, menu->selection);
190  menu->oldSelection = menu->selection;
191  }
192  }
193 }
194 
196 {
197  return menu->selection;
198 }
199 
201 {
202  if (menu->selection < menu->count - 1)
203  {
204  menu->selection++;
205  }
206  else
207  {
208  menu->selection = 0;
209  }
210 }
211 
213 {
214  if (menu->selection > 0)
215  {
216  menu->selection--;
217  }
218  else
219  {
220  menu->selection = menu->count - 1;
221  }
222 }
lcduint_t ssd1306_displayWidth(void)
void ssd1306_drawRect8(lcdint_t x1, lcdint_t y1, lcdint_t x2, lcdint_t y2)
Definition: ssd1306_8bit.c:211
uint8_t ssd1306_printFixed8(lcdint_t x, lcdint_t y, const char *ch, EFontStyle style)
Definition: ssd1306_8bit.c:356
void ssd1306_createMenu(SAppMenu *menu, const char **items, uint8_t count)
Definition: ssd1306_menu.c:41
void ssd1306_positiveMode()
Definition: ssd1306_1bit.c:982
uint8_t ssd1306_printFixed16(lcdint_t x, lcdint_t y, const char *ch, EFontStyle style)
uint8_t ssd1306_printFixed(uint8_t xpos, uint8_t y, const char *ch, EFontStyle style)
Definition: ssd1306_1bit.c:78
void ssd1306_updateMenu(SAppMenu *menu)
Definition: ssd1306_menu.c:138
void ssd1306_drawRect(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2)
Definition: ssd1306_1bit.c:710
void ssd1306_drawRect16(lcdint_t x1, lcdint_t y1, lcdint_t x2, lcdint_t y2)
void ssd1306_updateMenu16(SAppMenu *menu)
Definition: ssd1306_menu.c:176
uint8_t selection
currently selected item. Internally updated.
uint8_t scrollPosition
position of menu scrolling. Internally updated
#define min(a, b)
uint8_t count
count of menu items in the menu
void ssd1306_clearScreen16(void)
void ssd1306_menuDown(SAppMenu *menu)
Definition: ssd1306_menu.c:200
void ssd1306_clearScreen8(void)
Definition: ssd1306_8bit.c:127
lcduint_t ssd1306_displayHeight(void)
void ssd1306_updateMenu8(SAppMenu *menu)
Definition: ssd1306_menu.c:157
void ssd1306_showMenu8(SAppMenu *menu)
Definition: ssd1306_menu.c:116
uint8_t ssd1306_menuSelection(SAppMenu *menu)
Definition: ssd1306_menu.c:195
void ssd1306_clearScreen()
Definition: ssd1306_1bit.c:64
void ssd1306_showMenu(SAppMenu *menu)
Definition: ssd1306_menu.c:105
void ssd1306_menuUp(SAppMenu *menu)
Definition: ssd1306_menu.c:212
void ssd1306_negativeMode()
Definition: ssd1306_1bit.c:977
uint8_t oldSelection
selected item, when last redraw operation was performed. Internally updated.
const char ** items
list of menu items of the menu
void ssd1306_showMenu16(SAppMenu *menu)
Definition: ssd1306_menu.c:127