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Implement menu rendering (very basic without selection)
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parent
e54318126a
commit
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4 changed files with 36 additions and 7 deletions
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@ -1,18 +1,18 @@
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# Copyright 2013 Emilie Gillet.
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#
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#
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# Author: Emilie Gillet (emilie.o.gillet@gmail.com)
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#
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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@ -20,7 +20,7 @@
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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#
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# See http://creativecommons.org/licenses/MIT/ for more information.
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# System specifications
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@ -40,8 +40,9 @@ UPLOAD_COMMAND = upload_combo_jtag
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TARGET = midi2cv
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PACKAGES = midi2cv \
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midi2cv/drivers \
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midi2cv/menu \
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stmlib/utils \
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stmlib/system
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stmlib/system
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RESOURCES = midi2cv/resources
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TOOLCHAIN_PATH ?= /usr/local/arm-4.8.3/
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@ -1,7 +1,31 @@
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#include "menu.h"
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#include <algorithm>
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#include <u8g2.h>
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#define MENU_ITEM_HEIGHT 8
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void Menu::render(u8g2_t* u8g2_, uint8_t x, uint8_t y, uint8_t width, uint8_t height) {
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void Menu::render(u8g2_t* u8g2_, uint8_t xStart, uint8_t yStart, uint8_t width, uint8_t height)
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{
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uint8_t maxVisibleItems = height / MENU_ITEM_HEIGHT;
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uint8_t itemsToRender = std::min(maxVisibleItems, uint8_t(this->itemCount - currentScrollStart));
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for (uint8_t i = 0; i < itemsToRender; i++) {
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bool selected = this->selectedItem == (i + this->currentScrollStart);
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uint8_t yPosition = yStart + i * MENU_ITEM_HEIGHT;
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AbstractMenuItem* item = this->items[i + this->currentScrollStart];
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u8g2_SetDrawColor(u8g2_, selected ? 1 : 0);
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if (selected) {
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u8g2_DrawBox(u8g2_, xStart, yPosition, width, MENU_ITEM_HEIGHT);
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}
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u8g2_SetDrawColor(u8g2_, !selected ? 1 : 0);
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u8g2_DrawStr(u8g2_, xStart + 0, yPosition + MENU_ITEM_HEIGHT, item->get_label());
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uint8_t valueStringWidth = u8g2_GetStrWidth(u8g2_, item->get_string_representation());
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u8g2_DrawStr(u8g2_, xStart + width - valueStringWidth, yPosition + MENU_ITEM_HEIGHT, item->get_string_representation());
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}
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}
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@ -14,6 +14,7 @@ template <class T>
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class MenuItem : public AbstractMenuItem {
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private:
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const char* label;
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bool visible;
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T value;
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T step;
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char stringRepresentation[24];
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@ -21,6 +22,7 @@ class MenuItem : public AbstractMenuItem {
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protected:
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MenuItem(const char* _label, T _initialValue)
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: label(_label)
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, visible(true)
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, value(_initialValue) {};
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virtual void to_string(char* buf) = 0;
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@ -129,6 +129,8 @@ int main(void)
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menu.add_item(&item);
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menu.add_item(&item2);
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menu.add_item(&item3);
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menu.render(0, 0, 0, 0, 0);
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item.increase();
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item2.increase();
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item3.increase();
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