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110 lines
4.3 KiB
110 lines
4.3 KiB
2 years ago
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/*
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* EEZ Generic Firmware
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* Copyright (C) 2018-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 <eez/gui/gui.h>
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#include <eez/gui/widgets/containers/container.h>
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namespace eez {
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namespace gui {
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bool isOverlay(const WidgetCursor &widgetCursor) {
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if (widgetCursor.widget->type != WIDGET_TYPE_CONTAINER) {
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return false;
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}
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auto containerWidget = (const ContainerWidget *)widgetCursor.widget;
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return containerWidget->overlay != DATA_ID_NONE;
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}
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Overlay *getOverlay(const WidgetCursor &widgetCursor) {
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if (widgetCursor.widget->type != WIDGET_TYPE_CONTAINER) {
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return nullptr;
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}
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auto containerWidget = (const ContainerWidget *)widgetCursor.widget;
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if (containerWidget->overlay == DATA_ID_NONE) {
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return nullptr;
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}
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Value overlayValue;
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DATA_OPERATION_FUNCTION(containerWidget->overlay, DATA_OPERATION_GET_OVERLAY_DATA, widgetCursor, overlayValue);
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if (overlayValue.getType() != VALUE_TYPE_POINTER) {
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return nullptr;
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}
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return (Overlay *)overlayValue.getVoidPointer();
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}
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void getOverlayOffset(const WidgetCursor &widgetCursor, int &xOffset, int &yOffset) {
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Overlay *overlay = getOverlay(widgetCursor);
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if (overlay) {
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auto &overlayXOffset = (overlay->visibility & OVERLAY_MINIMIZED) != 0 ? overlay->xOffsetMinimized : overlay->xOffsetMaximized;
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auto &overlayYOffset = (overlay->visibility & OVERLAY_MINIMIZED) != 0 ? overlay->yOffsetMinimized : overlay->yOffsetMaximized;
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if (!overlay->moved && overlay->state) {
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overlayXOffset = overlay->x - widgetCursor.widget->x;
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overlayYOffset = overlay->y - widgetCursor.widget->y;
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}
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int x1 = 0;
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int y1 = 0;
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int x2 = 0;
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int y2 = 0;
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expandRectWithShadow(x1, y1, x2, y2);
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int x = widgetCursor.x + overlayXOffset;
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if (x + x1 < widgetCursor.appContext->rect.x) {
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x = widgetCursor.appContext->rect.x - x1;
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}
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if (x + overlay->width + x2 > widgetCursor.appContext->rect.x + widgetCursor.appContext->rect.w) {
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x = widgetCursor.appContext->rect.x + widgetCursor.appContext->rect.w - overlay->width - x2;
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}
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int y = widgetCursor.y + overlayYOffset;
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if (y + y1 < widgetCursor.appContext->rect.y) {
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y = widgetCursor.appContext->rect.y - y1;
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}
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if (y + overlay->height + y2 > widgetCursor.appContext->rect.y + widgetCursor.appContext->rect.h) {
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y = widgetCursor.appContext->rect.y + widgetCursor.appContext->rect.h - overlay->height - y2;
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}
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xOffset = overlayXOffset = x - widgetCursor.x;
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yOffset = overlayYOffset = y - widgetCursor.y;
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} else {
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xOffset = 0;
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yOffset = 0;
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}
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}
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void dragOverlay(Event &touchEvent) {
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Overlay *overlay = getOverlay(getFoundWidgetAtDown());
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if (overlay) {
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auto &overlayXOffset = (overlay->visibility & OVERLAY_MINIMIZED) != 0 ? overlay->xOffsetMinimized : overlay->xOffsetMaximized;
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auto &overlayYOffset = (overlay->visibility & OVERLAY_MINIMIZED) != 0 ? overlay->yOffsetMinimized : overlay->yOffsetMaximized;
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if (touchEvent.type == EVENT_TYPE_TOUCH_DOWN) {
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overlay->xOnTouchDown = touchEvent.x;
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overlay->yOnTouchDown = touchEvent.y;
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overlay->xOffsetOnTouchDown = overlayXOffset;
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overlay->yOffsetOnTouchDown = overlayYOffset;
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} else if (touchEvent.type == EVENT_TYPE_TOUCH_MOVE) {
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overlay->moved = true;
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overlayXOffset = overlay->xOffsetOnTouchDown + touchEvent.x - overlay->xOnTouchDown;
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overlayYOffset = overlay->yOffsetOnTouchDown + touchEvent.y - overlay->yOnTouchDown;
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}
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}
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}
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} // namespace gui
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} // namespace eez
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