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301 lines
12 KiB
301 lines
12 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 <math.h>
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#include <eez/core/util.h>
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#include <eez/core/sound.h>
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#include <eez/conf.h>
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#if OPTION_KEYBOARD
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#include <eez/core/keyboard.h>
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#endif
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#include <eez/gui/gui.h>
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#include <eez/gui/widgets/scroll_bar.h>
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namespace eez {
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namespace gui {
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ScrollBarWidgetSegment dragSegment;
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int dragStartX;
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int dragStartPosition;
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int getSize(const WidgetCursor &widgetCursor) {
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return ytDataGetSize(widgetCursor, widgetCursor.widget->data);
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}
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int getPosition(const WidgetCursor &widgetCursor) {
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return ytDataGetPosition(widgetCursor, widgetCursor.widget->data);
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}
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int getPositionIncrement(const WidgetCursor &widgetCursor) {
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return ytDataGetPositionIncrement(widgetCursor, widgetCursor.widget->data);
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}
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int getPageSize(const WidgetCursor &widgetCursor) {
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return ytDataGetPageSize(widgetCursor, widgetCursor.widget->data);
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}
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void setPosition(const WidgetCursor &widgetCursor, int position) {
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ytDataSetPosition(widgetCursor, widgetCursor.widget->data, position < 0 ? 0 : position);
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}
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void getThumbGeometry(int size, int position, int pageSize, int xTrack, int wTrack, int minThumbWidth, int &xThumb, int &widthThumb) {
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widthThumb = (int)round(1.0 * pageSize * wTrack / size);
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if (widthThumb < minThumbWidth) {
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widthThumb = minThumbWidth;
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}
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xThumb = xTrack + (int)round(remap(position, 0, 0, size - pageSize, wTrack - widthThumb));
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}
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bool ScrollBarWidgetState::updateState() {
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WIDGET_STATE_START(Widget);
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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(size, getSize(widgetCursor));
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WIDGET_STATE(position, getPosition(widgetCursor));
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WIDGET_STATE(pageSize, getPageSize(widgetCursor));
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WIDGET_STATE_END()
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}
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void ScrollBarWidgetState::render() {
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const WidgetCursor &widgetCursor = g_widgetCursor;
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auto widget = (const ScrollBarWidget *)widgetCursor.widget;
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if (pageSize < size) {
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const Style *buttonsStyle = getStyle(widget->buttonsStyle);
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auto isHorizontal = widgetCursor.w > widgetCursor.h;
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int buttonSize = isHorizontal ? widgetCursor.h : widgetCursor.w;
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// draw left button
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if (widget->leftButtonText) {
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drawText(
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static_cast<const char *>(widget->leftButtonText), -1,
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widgetCursor.x,
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widgetCursor.y,
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isHorizontal ? buttonSize : widgetCursor.w,
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isHorizontal ? widgetCursor.h : buttonSize, buttonsStyle,
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flags.active && dragSegment == SCROLL_BAR_WIDGET_SEGMENT_LEFT_BUTTON
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);
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}
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// draw track
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int xTrack;
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int yTrack;
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int wTrack;
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int hTrack;
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if (isHorizontal) {
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xTrack = widgetCursor.x + buttonSize;
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yTrack = widgetCursor.y;
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wTrack = widgetCursor.w - 2 * buttonSize;
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hTrack = widgetCursor.h;
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} else {
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xTrack = widgetCursor.x;
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yTrack = widgetCursor.y + buttonSize;
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wTrack = widgetCursor.w;
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hTrack = widgetCursor.h - 2 * buttonSize;
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}
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const Style *trackStyle = getStyle(widget->style);
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display::setColor(trackStyle->color);
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display::fillRect(xTrack, yTrack, xTrack + wTrack - 1, yTrack + hTrack - 1);
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// draw thumb
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const Style *thumbStyle = getStyle(widget->thumbStyle);
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display::setColor(thumbStyle->color);
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if (isHorizontal) {
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int xThumb, wThumb;
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getThumbGeometry(size, position, pageSize, xTrack, wTrack, buttonSize, xThumb, wThumb);
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display::fillRect(xThumb, yTrack, xThumb + wThumb - 1, yTrack + hTrack - 1);
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} else {
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int yThumb, hThumb;
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getThumbGeometry(size, position, pageSize, yTrack, hTrack, buttonSize, yThumb, hThumb);
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display::fillRect(xTrack, yThumb, xTrack + wTrack - 1, yThumb + hThumb - 1);
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}
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// draw right button
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if (widget->rightButtonText) {
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drawText(
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static_cast<const char *>(widget->rightButtonText), -1,
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isHorizontal ? widgetCursor.x + widgetCursor.w - buttonSize : widgetCursor.x,
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isHorizontal ? widgetCursor.y : widgetCursor.y + widgetCursor.h - buttonSize,
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isHorizontal ? buttonSize : widgetCursor.w,
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isHorizontal ? widgetCursor.h : buttonSize,
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buttonsStyle,
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flags.active && dragSegment == SCROLL_BAR_WIDGET_SEGMENT_RIGHT_BUTTON
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);
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}
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auto action = getWidgetAction(widgetCursor);
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if (flags.focused && action == ACTION_ID_SCROLL) {
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const Style *style = getStyle(widgetCursor.widget->style);
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display::setColor(style->focusColor);
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display::drawRect(widgetCursor.x, widgetCursor.y, widgetCursor.x + widgetCursor.w - 1, widgetCursor.y + widgetCursor.h - 1);
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display::drawRect(widgetCursor.x + 1, widgetCursor.y + 1, widgetCursor.x + widgetCursor.w - 2, widgetCursor.y + widgetCursor.h - 2);
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}
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} else {
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// scroll bar is hidden
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const Style *trackStyle = getStyle(widget->style);
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display::setColor(trackStyle->color);
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display::fillRect(widgetCursor.x, widgetCursor.y, widgetCursor.x + widgetCursor.w - 1, widgetCursor.y + widgetCursor.h - 1);
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}
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}
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bool ScrollBarWidgetState::hasOnTouch() {
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return true;
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}
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void ScrollBarWidgetState::onTouch(const WidgetCursor &widgetCursor, Event &touchEvent) {
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int size = getSize(widgetCursor);
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int pageSize = getPageSize(widgetCursor);
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if (size > pageSize) {
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const Widget *widget = widgetCursor.widget;
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auto isHorizontal = widgetCursor.w > widgetCursor.h;
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int buttonSize = isHorizontal ? widgetCursor.h : widgetCursor.w;
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int xTrack;
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int wTrack;
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int x;
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if (isHorizontal) {
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x = touchEvent.x;
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xTrack = widgetCursor.x + buttonSize;
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wTrack = widgetCursor.w - 2 * buttonSize;
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} else {
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x = touchEvent.y;
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xTrack = widgetCursor.y + buttonSize;
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wTrack = widgetCursor.h - 2 * buttonSize;
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}
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if (touchEvent.type == EVENT_TYPE_TOUCH_DOWN || touchEvent.type == EVENT_TYPE_AUTO_REPEAT || dragSegment == SCROLL_BAR_WIDGET_SEGMENT_UNINITIALIZED) {
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if (touchEvent.type == EVENT_TYPE_TOUCH_DOWN) {
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dragSegment = SCROLL_BAR_WIDGET_SEGMENT_NONE;
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}
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if (touchEvent.type == EVENT_TYPE_AUTO_REPEAT && (dragSegment == SCROLL_BAR_WIDGET_SEGMENT_NONE || dragSegment == SCROLL_BAR_WIDGET_SEGMENT_THUMB)) {
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return;
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}
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if ((isHorizontal && touchEvent.x < widgetCursor.x + buttonSize) || (!isHorizontal && touchEvent.y < widgetCursor.y + buttonSize)) {
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setPosition(widgetCursor, getPosition(widgetCursor) - getPositionIncrement(widgetCursor));
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dragSegment = SCROLL_BAR_WIDGET_SEGMENT_LEFT_BUTTON;
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if (touchEvent.type == EVENT_TYPE_TOUCH_DOWN) {
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sound::playClick();
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}
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} else if ((isHorizontal && (touchEvent.x >= widgetCursor.x + widgetCursor.w - buttonSize)) || (!isHorizontal && (touchEvent.y >= widgetCursor.y + widgetCursor.h - buttonSize))) {
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setPosition(widgetCursor, getPosition(widgetCursor) + getPositionIncrement(widgetCursor));
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dragSegment = SCROLL_BAR_WIDGET_SEGMENT_RIGHT_BUTTON;
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if (touchEvent.type == EVENT_TYPE_TOUCH_DOWN) {
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sound::playClick();
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}
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} else {
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int xThumb, wThumb;
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int position = getPosition(widgetCursor);
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getThumbGeometry(size, position, pageSize, xTrack, wTrack, buttonSize, xThumb, wThumb);
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if (x < xThumb) {
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setPosition(widgetCursor, getPosition(widgetCursor) - pageSize);
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dragSegment = SCROLL_BAR_WIDGET_SEGMENT_TRACK_LEFT;
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if (touchEvent.type == EVENT_TYPE_TOUCH_DOWN) {
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sound::playClick();
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}
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} else if (x >= xThumb + wThumb) {
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setPosition(widgetCursor, getPosition(widgetCursor) + pageSize);
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dragSegment = SCROLL_BAR_WIDGET_SEGMENT_TRACK_RIGHT;
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if (touchEvent.type == EVENT_TYPE_TOUCH_DOWN) {
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sound::playClick();
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}
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} else if (x >= xThumb || touchEvent.x < xThumb + wThumb) {
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dragSegment = SCROLL_BAR_WIDGET_SEGMENT_THUMB;
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dragStartX = x;
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dragStartPosition = getPosition(widgetCursor);
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}
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}
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}
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if (touchEvent.type == EVENT_TYPE_TOUCH_MOVE) {
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if (dragSegment == SCROLL_BAR_WIDGET_SEGMENT_THUMB) {
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int size = getSize(widgetCursor);
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setPosition(widgetCursor, dragStartPosition + (int)round(1.0 * (x - dragStartX) * size / wTrack));
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}
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} else if (touchEvent.type == EVENT_TYPE_TOUCH_UP) {
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dragSegment = SCROLL_BAR_WIDGET_SEGMENT_NONE;
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}
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auto action = getWidgetAction(widgetCursor);
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if (action == ACTION_ID_SCROLL) {
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g_hooks.setFocusCursor(widgetCursor, widget->data);
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}
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}
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}
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bool ScrollBarWidgetState::hasOnKeyboard() {
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#if OPTION_KEYBOARD
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return true;
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#else
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return false;
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#endif
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}
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bool ScrollBarWidgetState::onKeyboard(const WidgetCursor &widgetCursor, uint8_t key, uint8_t mod) {
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#if OPTION_KEYBOARD
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if (mod == 0) {
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int position = getPosition(widgetCursor);
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int increment = getPositionIncrement(widgetCursor);
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int size = getSize(widgetCursor);
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int pageSize = getPageSize(widgetCursor);
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if (key == KEY_LEFTARROW || key == KEY_UPARROW) {
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setPosition(widgetCursor, position - increment);
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return true;
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} else if (key == KEY_RIGHTARROW || key == KEY_DOWNARROW) {
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setPosition(widgetCursor, position + increment);
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return true;
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} else if (key == KEY_PAGEUP) {
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setPosition(widgetCursor, position - pageSize);
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return true;
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} else if (key == KEY_PAGEDOWN) {
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setPosition(widgetCursor, position + pageSize);
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return true;
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} else if (key == KEY_HOME) {
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setPosition(widgetCursor, 0);
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return true;
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} else if (key == KEY_END1) {
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setPosition(widgetCursor, position + size - pageSize);
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return true;
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}
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}
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return false;
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#else
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return false;
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#endif
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}
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} // namespace gui
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} // namespace eez
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