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300 lines
12 KiB
300 lines
12 KiB
/* |
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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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