Added basic tab widget
This commit is contained in:
TheFGFSEagle
James Turner
parent
09fa5499bb
commit
8d5e4aaf1c
5 changed files with 299 additions and 6 deletions
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@ -186,6 +186,22 @@ var Element = {
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return center;
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},
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# Set size in pixels
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# Use either with x, y size:
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# e.setSize(<x>, <y>)
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# or with a vector containing x, y:
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# e.setSize([<x>, <y>])
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setSize: func {
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if (size(arg) == 1) {
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var (x, y) = arg[0];
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} else {
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var (x, y) = arg;
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}
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var (sx, sy) = me.getScale();
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var (curx, cury) = me.getSize();
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me.setScale(x / (curx / sy), y / (cury / sy));
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},
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#return vector [sx, sy] with dimensions of bounding box
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getSize: func {
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var bb = me.getTightBoundingBox();
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@ -40,6 +40,7 @@ loadWidget("LineEdit");
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loadWidget("ScrollArea");
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loadWidget("Rule");
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loadWidget("Slider");
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loadWidget("TabWidget");
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# standard dialogs
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loadDialog("InputDialog");
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@ -126,7 +126,7 @@ DefaultStyle.widgets.checkbox = {
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{
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if (me._label_position == "left") {
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me._label.setTranslation(3, int((h / 2) + 1));
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me._icon.setTranslation(me._label.maxWidth() + 6, int((h - 18) / 2));
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me._icon.setTranslation(w - 24, int((h - 18) / 2));
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} else {
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me._icon.setTranslation(3, int((h - 18) / 2));
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me._label.setTranslation(24, int(h / 2) + 1);
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@ -458,6 +458,88 @@ DefaultStyle.widgets["scroll-area"] = {
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}
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};
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DefaultStyle.widgets["tab-widget"] = {
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new: func(parent, cfg) {
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me._root = parent.createChild("group", "tab-widget");
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me._bg = me._root.createChild("path", "background")
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.set("fill", "#e0e0e0");
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me.tabBar = me._root.createChild("group", "tab-widget-tabbar");
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me.tabBarHeight = 30;
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me.content = me._root.createChild("group", "tab-widget-content");
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me.content.setTranslation(0, me.tabBarHeight);
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},
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update: func(model) {
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me._bg.set("fill", me._style.getColor("bg_color"));
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},
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setSize: func(model, w, h) {
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me._bg.reset().rect(0, 0, model._size[0], model._size[1]);
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me.tabBar.set("clip", sprintf("rect(0, %d, %d, 0)", model._size[0], me.tabBarHeight));
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me.content.set("clip", sprintf("rect(0, %d, %d, 0)", model._size[0], model._size[1] - me.tabBarHeight));
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return me.update(model);
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},
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};
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# Tab button for the tab widget
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DefaultStyle.widgets["tab-widget-tab-button"] = {
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new: func(parent, cfg) {
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me._root = parent.createChild("group", "tab-widget-tab-button");
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me._bg = me._root.createChild("path")
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.set("fill", me._style.getColor("tab_widget_tab_button_bg_focused"))
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.set("stroke", me._style.getColor("tab_widget_tab_button_border"))
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.set("stroke-width", 1);
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me._selected_indicator = me._root.createChild("path")
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.set("stroke", me._style.getColor("tab_widget_tab_button_selected_indicator"))
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.set("stroke-width", 3);
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me._label = me._root.createChild("text")
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.set("font", "LiberationFonts/LiberationSans-Regular.ttf")
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.set("character-size", 14)
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.set("alignment", "center-baseline");
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},
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setSize: func(model, w, h) {
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me._bg.reset().rect(3, 0, w - 6, h);
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me._selected_indicator.reset().moveTo(3, h).horiz(w - 6);
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},
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setText: func(model, text) {
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me._label.setText(text);
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var min_width = math.max(80, me._label.maxWidth() + 16);
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model.setLayoutMinimumSize([min_width, 30]);
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model.setLayoutSizeHint([min_width, 30]);
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return me;
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},
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update: func(model) {
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var backdrop = !model._windowFocus();
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var (w, h) = model._size;
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me._label.setTranslation(w / 2, h / 2 + 5);
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var bg_color_name = "tab_widget_tab_button_bg_focused";
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if (backdrop) {
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bg_color_name = "tab_widget_tab_button_bg_unfocused";
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} else if (model._selected) {
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bg_color_name = "tab_widget_tab_button_bg_selected";
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} else if (model._hover) {
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bg_color_name = "tab_widget_tab_button_bg_hovered";
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}
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me._bg.set("fill", me._style.getColor(bg_color_name));
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me._selected_indicator.setVisible(model._selected);
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if (backdrop) {
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me._label.set("fill", me._style.getColor("backdrop_fg_color"));
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} else {
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me._label.set("fill", me._style.getColor("fg_color"));
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}
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}
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};
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# A horizontal or vertical rule line
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# possibly with a text label embedded
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DefaultStyle.widgets.rule = {
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162
Nasal/canvas/gui/widgets/TabWidget.nas
Normal file
162
Nasal/canvas/gui/widgets/TabWidget.nas
Normal file
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@ -0,0 +1,162 @@
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# TabWidget.nas - widget with a tabs bar and a content area which always displays
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# exactly one of its tabs
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# SPDX-FileCopyrightText: (C) 2022 Frederic Croix <thefgfseagle@gmail.com>
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# SPDX-License-Identifier: GPL-2.0-or-later
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gui.widgets.TabWidgetTabButton = {
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new: func(parent, style, cfg) {
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var cfg = Config.new(cfg);
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var m = gui.Widget.new(gui.widgets.TabWidgetTabButton);
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m._focus_policy = m.StrongFocus;
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m._selected = 0;
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m._setView(style.createWidget(parent, "tab-widget-tab-button", cfg));
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return m;
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},
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setText: func(text) {
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me._view.setText(me, text);
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return me;
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},
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setSelected: func(selected = 1) {
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if (me._selected == selected) {
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return me;
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}
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me._selected = selected;
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me._trigger("toggled", {selected: selected});
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me._onStateChange();
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me._view.update(me);
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return me;
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},
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_setView: func(view) {
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call(gui.Widget._setView, [view], me);
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var el = view._root;
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#el.addEventListener("mousedown", func me.dragStart());
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#el.addEventListener("mouseup", func me.dragStop());
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el.addEventListener("click", func me.setSelected());
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el.addEventListener("drag", func(e) { e.stopPropagation() });
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#el.addEventListener("drag", me.drag);
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}
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};
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gui.widgets.TabWidget = {
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new: func(parent, style, cfg) {
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var m = gui.Widget.new(gui.widgets.TabWidget);
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m._cfg = Config.new(cfg);
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m._focus_policy = m.NoFocus;
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m._setView(style.createWidget(parent, "tab-widget", m._cfg));
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m._layout = VBoxLayout.new();
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m._layout.setCanvas(m._view._root.getCanvas());
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m._tabBar = HBoxLayout.new();
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m._layout.addItem(m._tabBar);
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m._currentTab = nil;
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m._currentTabId = nil;
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m._tabs = {};
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m._tabButtons = {};
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m.setLayoutMinimumSize([50, 30]);
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m.setLayoutSizeHint([100, 30]);
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return m;
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},
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hasTab: func(id) {
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return me._tabs[id] != nil;
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},
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getTab: func(id) {
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if (!me.hasTab(id)) {
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die("tab with id '" ~ id ~ "' does not exist");
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}
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return me._tabs[id];
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},
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addTab: func(id, label, widget) {
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if (me.hasTab(id)) {
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die("cannot add multiple tabs with the same id: " ~ id);
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}
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me._tabButtons[id] = gui.widgets.TabWidgetTabButton.new(me._view._root, canvas.style, {})
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.setText(label)
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.listen("toggled", func (e) {
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if (e.detail.selected and id != me._currentTabId) {
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me.setCurrentTab(id);
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}
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});
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me._tabBar.addItem(me._tabButtons[id]);
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me._tabs[id] = widget;
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me._layout.addItem(widget);
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me.setCurrentTab(keys(me._tabs)[0]);
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return me;
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},
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removeTab: func(id) {
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if (!me.hasTab(id)) {
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die("tab with id '" ~ id ~ "' does not exist");
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}
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me._tabs[id].setVisible(0);
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me._layout.removeItem(me._tabs[id]);
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delete(me._tabs, id);
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me._tabBar.removeItem(me._tabButtons[id]);
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delete(me._tabButtons, id);
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if (size(keys(me._tabs)) > 0) {
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me.setCurrentTab(keys(me._tabs)[-1]);
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}
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return me;
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},
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setCurrentTab: func(id) {
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if (!me.hasTab(id)) {
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die("tab with id '" ~ id ~ "' does not exist");
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}
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if (me._currentTabId) {
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me._tabButtons[me._currentTabId].setSelected(0);
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}
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me._tabButtons[id].setSelected();
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foreach (var tabid; keys(me._tabs)) {
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me._tabs[tabid].setVisible(0);
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}
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me._tabs[id].setVisible(1);
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me._currentTabId = id;
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me._currentTab = me._tabs[id];
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return me.update();
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},
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setSize: func {
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if (size(arg) == 1) {
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var arg = arg[0];
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}
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var (x, y) = arg;
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me._size = [x, y];
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return me.update();
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},
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# Needs to be called when the size of the content changes.
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update: func() {
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if(me._layout.getParent() == nil) {
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me._layout.setParent(me);
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}
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me._tabBar.setGeometry([0, 0, me._size[0], me._view.tabBarHeight]);
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if (me._currentTab) {
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me._currentTab.setGeometry([0, me._view.tabBarHeight, me._size[0], me._size[1] - me._view.tabBarHeight]);
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}
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me._view.update(me);
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return me;
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},
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};
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@ -1,5 +1,4 @@
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<?xml version="1.0"?>
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<?xml version="1.0" encoding="UTF-8"?>
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<PropertyList>
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<!--
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<folders>
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@ -8,7 +7,6 @@
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</folders>
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-->
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<colors>
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<!-- Window decoration colors -->
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<title>
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<red type="float">0.275</red>
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@ -96,6 +94,40 @@
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<blue type="float">0.89</blue>
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</button_bg_color_insensitive>
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</colors>
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<tab_widget_tab_button_border>
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<red type="float">0.905</red>
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<green type="float">0.897</green>
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<blue type="float">0.885</blue>
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</tab_widget_tab_button_border>
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<tab_widget_tab_button_selected_indicator>
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<red type="float">0.11</red>
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<green type="float">0.42</green>
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<blue type="float">0.8</blue>
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</tab_widget_tab_button_selected_indicator>
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<tab_widget_tab_button_bg_focused>
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<red type="float">0.86</red>
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<green type="float">0.855</green>
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<blue type="float">0.85</blue>
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</tab_widget_tab_button_bg_focused>
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<tab_widget_tab_button_bg_unfocused>
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<red type="float">0.9</red>
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<green type="float">0.895</green>
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<blue type="float">0.89</blue>
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</tab_widget_tab_button_bg_unfocused>
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<tab_widget_tab_button_bg_hovered>
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<red type="float">0.93</red>
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<green type="float">0.925</green>
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<blue type="float">0.92</blue>
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</tab_widget_tab_button_bg_hovered>
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<tab_widget_tab_button_bg_selected>
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<red type="float">0.96</red>
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<green type="float">0.955</green>
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<blue type="float">0.95</blue>
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</tab_widget_tab_button_bg_selected>
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</colors>
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</PropertyList>
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