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261 lines
9.0 KiB
261 lines
9.0 KiB
2 years ago
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/*
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* EEZ Modular Firmware
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* Copyright (C) 2015-present, Envox d.o.o.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <eez/core/os.h>
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#include <eez/core/util.h>
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#include <eez/gui/gui.h>
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#include <eez/gui/widgets/display_data.h>
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namespace eez {
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namespace gui {
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enum {
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DISPLAY_OPTION_ALL = 0,
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DISPLAY_OPTION_INTEGER = 1,
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DISPLAY_OPTION_FRACTION = 2,
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DISPLAY_OPTION_FRACTION_AND_UNIT = 3,
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DISPLAY_OPTION_UNIT = 4,
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DISPLAY_OPTION_INTEGER_AND_FRACTION = 5
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};
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int findStartOfFraction(char *text) {
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int i;
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for (i = 0; text[i] && (text[i] == '<' || text[i] == ' ' || text[i] == '-' || (text[i] >= '0' && text[i] <= '9')); i++);
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return i;
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}
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int findStartOfUnit(char *text, int i) {
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for (i = 0; text[i] && (text[i] == '<' || text[i] == ' ' || text[i] == '-' || (text[i] >= '0' && text[i] <= '9') || text[i] == '.'); i++);
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return i;
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}
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bool DisplayDataWidgetState::updateState() {
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WIDGET_STATE_START(DisplayDataWidget);
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const Style *style = getStyle(g_hooks.overrideStyle(widgetCursor, widget->style));
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WIDGET_STATE(flags.active, g_isActiveWidget);
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WIDGET_STATE(flags.focused, isFocusWidget(widgetCursor));
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WIDGET_STATE(flags.blinking, g_isBlinkTime && isBlinking(widgetCursor, widget->data));
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bool refreshData = true;
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auto newData = get(widgetCursor, widget->data);
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auto currentTime = millis();
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if (hasPreviousState && data != newData) {
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uint32_t refreshRate = getTextRefreshRate(widgetCursor, widget->data);
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if (refreshRate != 0 && currentTime - dataRefreshLastTime < refreshRate) {
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refreshData = false;
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}
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}
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if (refreshData) {
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WIDGET_STATE(data, newData);
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dataRefreshLastTime = currentTime;
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}
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WIDGET_STATE(color, flags.focused ? style->focusColor : getColor(widgetCursor, widget->data, style));
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WIDGET_STATE(backgroundColor, flags.focused ? style->focusBackgroundColor : getBackgroundColor(widgetCursor, widget->data, style));
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WIDGET_STATE(activeColor, flags.focused ? style->focusBackgroundColor : getActiveColor(widgetCursor, widget->data, style));
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WIDGET_STATE(activeBackgroundColor, flags.focused ? style->focusColor : getActiveBackgroundColor(widgetCursor, widget->data, style));
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bool cursorVisible = millis() % (2 * CONF_GUI_TEXT_CURSOR_BLINK_TIME_MS) < CONF_GUI_TEXT_CURSOR_BLINK_TIME_MS;
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WIDGET_STATE(cursorPosition, cursorVisible ? getTextCursorPosition(widgetCursor, widget->data) : -1);
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WIDGET_STATE(xScroll, getXScroll(widgetCursor));
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WIDGET_STATE_END()
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}
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void DisplayDataWidgetState::render() {
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const WidgetCursor &widgetCursor = g_widgetCursor;
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auto widget = (const DisplayDataWidget *)widgetCursor.widget;
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const Style *style = getStyle(g_hooks.overrideStyle(widgetCursor, widget->style));
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char text[64];
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data.toText(text, sizeof(text));
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char *start = text;
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int length = -1;
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if (widget->displayOption != DISPLAY_OPTION_ALL) {
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if (data.getType() == VALUE_TYPE_FLOAT) {
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if (widget->displayOption == DISPLAY_OPTION_INTEGER) {
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int i = findStartOfFraction(text);
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text[i] = 0;
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} else if (widget->displayOption == DISPLAY_OPTION_FRACTION) {
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int i = findStartOfFraction(text);
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start = text + i;
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} else if (widget->displayOption == DISPLAY_OPTION_FRACTION_AND_UNIT) {
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int i = findStartOfFraction(text);
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int k = findStartOfUnit(text, i);
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if (i < k) {
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start = text + i;
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text[k] = 0;
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}
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else {
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stringCopy(text, sizeof(text), ".0");
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}
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} else if (widget->displayOption == DISPLAY_OPTION_UNIT) {
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int i = findStartOfUnit(text, 0);
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start = text + i;
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} else if (widget->displayOption == DISPLAY_OPTION_INTEGER_AND_FRACTION) {
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int i = findStartOfUnit(text, 0);
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text[i] = 0;
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}
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// trim left
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while (*start && *start == ' ') {
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start++;
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}
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// trim right
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length = strlen(start);
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if (length > 0 && start[length - 1] == ' ') {
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length--;
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}
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} else {
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if (
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widget->displayOption != DISPLAY_OPTION_INTEGER &&
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widget->displayOption != DISPLAY_OPTION_INTEGER_AND_FRACTION
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) {
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*text = 0;
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}
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}
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}
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drawText(
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start, length,
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widgetCursor.x, widgetCursor.y, widgetCursor.w, widgetCursor.h,
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style,
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flags.active, flags.blinking, false,
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&color, &backgroundColor, &activeColor, &activeBackgroundColor,
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data.getType() == VALUE_TYPE_FLOAT
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#if OPTION_KEYPAD
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|| widget->data == DATA_ID_KEYPAD_EDIT_UNIT
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#endif
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, // useSmallerFontIfDoesNotFit
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cursorPosition,
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xScroll
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);
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}
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int DISPLAY_DATA_getCharIndexAtPosition(int xPos, const WidgetCursor &widgetCursor) {
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auto widget = (const DisplayDataWidget *)widgetCursor.widget;
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const Style *style = getStyle(g_hooks.overrideStyle(widgetCursor, widget->style));
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char text[64];
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Value data = get(widgetCursor, widget->data);
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data.toText(text, sizeof(text));
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char *start = text;
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if (widget->displayOption == DISPLAY_OPTION_INTEGER) {
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int i = findStartOfFraction(text);
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text[i] = 0;
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} else if (widget->displayOption == DISPLAY_OPTION_FRACTION) {
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int i = findStartOfFraction(text);
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start = text + i;
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} else if (widget->displayOption == DISPLAY_OPTION_FRACTION_AND_UNIT) {
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int i = findStartOfFraction(text);
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int k = findStartOfUnit(text, i);
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if (i < k) {
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start = text + i;
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text[k] = 0;
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} else {
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stringCopy(text, sizeof(text), ".0");
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}
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} else if (widget->displayOption == DISPLAY_OPTION_UNIT) {
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int i = findStartOfUnit(text, 0);
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start = text + i;
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} else if (widget->displayOption == DISPLAY_OPTION_INTEGER_AND_FRACTION) {
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int i = findStartOfUnit(text, 0);
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text[i] = 0;
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}
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// trim left
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while (*start && *start == ' ') {
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start++;
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}
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// trim right
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int length = strlen(start);
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while (length > 0 && start[length - 1] == ' ') {
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length--;
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}
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int xScroll = getXScroll(widgetCursor);
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return getCharIndexAtPosition(xPos, start, length, widgetCursor.x - xScroll, widgetCursor.y, widgetCursor.w, widgetCursor.h, style);
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}
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int DISPLAY_DATA_getCursorXPosition(int cursorPosition, const WidgetCursor &widgetCursor) {
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auto widget = (const DisplayDataWidget *)widgetCursor.widget;
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const Style *style = getStyle(g_hooks.overrideStyle(widgetCursor, widget->style));
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char text[64];
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Value data = get(widgetCursor, widget->data);
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data.toText(text, sizeof(text));
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char *start = text;
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if (widget->displayOption == DISPLAY_OPTION_INTEGER) {
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int i = findStartOfFraction(text);
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text[i] = 0;
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} else if (widget->displayOption == DISPLAY_OPTION_FRACTION) {
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int i = findStartOfFraction(text);
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start = text + i;
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} else if (widget->displayOption == DISPLAY_OPTION_FRACTION_AND_UNIT) {
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int i = findStartOfFraction(text);
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int k = findStartOfUnit(text, i);
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if (i < k) {
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start = text + i;
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text[k] = 0;
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} else {
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stringCopy(text, sizeof(text), ".0");
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}
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} else if (widget->displayOption == DISPLAY_OPTION_UNIT) {
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int i = findStartOfUnit(text, 0);
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start = text + i;
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} else if (widget->displayOption == DISPLAY_OPTION_INTEGER_AND_FRACTION) {
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int i = findStartOfUnit(text, 0);
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text[i] = 0;
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}
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// trim left
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while (*start && *start == ' ') {
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start++;
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}
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// trim right
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int length = strlen(start);
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while (length > 0 && start[length - 1] == ' ') {
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length--;
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}
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return getCursorXPosition(cursorPosition, start, length, widgetCursor.x, widgetCursor.y, widgetCursor.w, widgetCursor.h, style);
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}
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} // namespace gui
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} // namespace eez
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