GODOT IS OPEN SOURCE

1 files changed, 293 insertions, 0 deletions

diff --git a/scene/gui/tabs.cpp b/scene/gui/tabs.cpp
new file mode 100644
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--- /dev/null
+++ b/scene/gui/tabs.cpp
@@ -0,0 +1,293 @@
+/*************************************************************************/
+/*  tabs.cpp                                                             */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                    http://www.godotengine.org                         */
+/*************************************************************************/
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+#include "tabs.h"
+
+#include "message_queue.h"
+
+Size2 Tabs::get_minimum_size() const {
+
+
+	Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
+	Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
+	Ref<Font> font = get_font("font");
+
+	Size2 ms(0, MAX( tab_bg->get_minimum_size().height,tab_fg->get_minimum_size().height)+font->get_height() );
+
+//	h+=MIN( get_constant("label_valign_fg"), get_constant("label_valign_bg") );
+
+	for(int i=0;i<tabs.size();i++) {
+
+		Ref<Texture> tex = tabs[i].icon;
+		if (tex.is_valid()) {
+			ms.height = MAX( ms.height, tex->get_size().height );
+			if (tabs[i].text!="")
+				ms.width+=get_constant("hseparation");
+
+		}
+		ms.width+=font->get_string_size(tabs[i].text).width;
+		if (current==i)
+			ms.width+=tab_fg->get_minimum_size().width;
+		else
+			ms.width+=tab_bg->get_minimum_size().width;
+
+
+	}
+
+	return ms;
+}
+
+
+
+void Tabs::_input_event(const InputEvent& p_event) {
+
+	if (p_event.type==InputEvent::MOUSE_BUTTON &&
+	    p_event.mouse_button.pressed &&
+	    p_event.mouse_button.button_index==BUTTON_LEFT) {
+
+		// clicks
+		Point2 pos( p_event.mouse_button.x, p_event.mouse_button.y );
+
+		int found=-1;
+		for(int i=0;i<tabs.size();i++) {
+
+			int ofs=tabs[i].ofs_cache;
+
+			if (pos.x < ofs) {
+
+				found=i;
+				break;
+			}
+		}
+
+
+		if (found!=-1) {
+
+			set_current_tab(found);
+		}
+	}
+
+}
+
+void Tabs::_notification(int p_what) {
+
+
+	switch(p_what) {
+
+
+		case NOTIFICATION_DRAW: {
+
+			RID ci = get_canvas_item();
+
+			Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
+			Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
+			Ref<Font> font = get_font("font");
+			Color color_fg = get_color("font_color_fg");
+			Color color_bg = get_color("font_color_bg");
+
+			int h = get_size().height;
+
+			int label_valign_fg = get_constant("label_valign_fg");
+			int label_valign_bg = get_constant("label_valign_bg");
+
+			int w=0;
+
+			for(int i=0;i<tabs.size();i++) {
+
+
+				String s = tabs[i].text;
+				int lsize=0;
+				int slen=font->get_string_size(s).width;;
+				lsize+=slen;
+
+				Ref<Texture> icon;
+				if (tabs[i].icon.is_valid()) {
+					Ref<Texture> icon = tabs[i].icon;
+					if (icon.is_valid()) {
+						lsize+=icon->get_width();
+						if (s!="")
+							lsize+=get_constant("hseparation");
+
+					}
+				}
+
+
+				Ref<StyleBox> sb;
+				int va;
+				Color col;
+
+				if (i==current) {
+
+					sb=tab_fg;
+					va=label_valign_fg;
+					col=color_fg;
+				} else {
+					sb=tab_bg;
+					va=label_valign_bg;
+					col=color_bg;
+				}
+
+
+				Size2i sb_ms = sb->get_minimum_size();
+				Rect2 sb_rect = Rect2( w, 0, lsize+sb_ms.width, h);
+				sb->draw(ci, sb_rect );
+
+				w+=sb->get_margin(MARGIN_LEFT);
+
+				if (icon.is_valid()) {
+
+					icon->draw(ci, Point2i( w, sb->get_margin(MARGIN_TOP)+((sb_rect.size.y-sb_ms.y)-icon->get_height())/2 ) );
+					if (s!="")
+						w+=icon->get_width()+get_constant("hseparation");
+
+				}
+
+				font->draw(ci, Point2i( w, sb->get_margin(MARGIN_TOP)+((sb_rect.size.y-sb_ms.y)-font->get_height())/2+font->get_ascent() ), s, col );
+
+				w+=slen+sb->get_margin(MARGIN_RIGHT);
+
+				tabs[i].ofs_cache=w;
+
+			}
+
+
+		} break;
+	}
+}
+
+int Tabs::get_tab_count() const {
+
+
+	return tabs.size();
+}
+
+
+void Tabs::set_current_tab(int p_current) {
+
+	ERR_FAIL_INDEX( p_current, get_tab_count() );
+
+    //printf("DEBUG %p: set_current_tab to %i\n", this, p_current);
+	current=p_current;	
+
+	_change_notify("current_tab");
+	emit_signal("tab_changed",current);
+	update();
+}
+
+int Tabs::get_current_tab() const {
+
+	return current;
+}
+
+
+void Tabs::set_tab_title(int p_tab,const String& p_title) {
+
+	ERR_FAIL_INDEX(p_tab,tabs.size());
+	tabs[p_tab].text=p_title;
+	update();
+	minimum_size_changed();
+
+}
+
+String Tabs::get_tab_title(int p_tab) const{
+
+	ERR_FAIL_INDEX_V(p_tab,tabs.size(),"");
+	return tabs[p_tab].text;
+
+
+}
+
+void Tabs::set_tab_icon(int p_tab,const Ref<Texture>& p_icon){
+
+	ERR_FAIL_INDEX(p_tab,tabs.size());
+	tabs[p_tab].icon=p_icon;
+	update();
+	minimum_size_changed();
+
+}
+Ref<Texture> Tabs::get_tab_icon(int p_tab) const{
+
+	ERR_FAIL_INDEX_V(p_tab,tabs.size(),Ref<Texture>());
+	return tabs[p_tab].icon;
+
+}
+
+void Tabs::add_tab(const String& p_str,const Ref<Texture>& p_icon) {
+
+	Tab t;
+	t.text=p_str;
+	t.icon=p_icon;
+	tabs.push_back(t);
+
+	update();
+	minimum_size_changed();
+
+}
+
+void Tabs::remove_tab(int p_idx) {
+
+	ERR_FAIL_INDEX(p_idx,tabs.size());
+	tabs.remove(p_idx);
+	if (current>=p_idx)
+		current--;
+	update();
+	minimum_size_changed();
+
+	if (current<0)
+		current=0;
+	if (current>=tabs.size())
+		current=tabs.size()-1;
+
+	emit_signal("tab_changed",current);
+
+}
+
+
+void Tabs::_bind_methods() {
+
+	ObjectTypeDB::bind_method(_MD("_input_event"),&Tabs::_input_event);
+	ObjectTypeDB::bind_method(_MD("get_tab_count"),&Tabs::get_tab_count);
+	ObjectTypeDB::bind_method(_MD("set_current_tab","tab_idx"),&Tabs::set_current_tab);
+	ObjectTypeDB::bind_method(_MD("get_current_tab"),&Tabs::get_current_tab);
+	ObjectTypeDB::bind_method(_MD("set_tab_title","tab_idx","title"),&Tabs::set_tab_title);
+	ObjectTypeDB::bind_method(_MD("get_tab_title","tab_idx"),&Tabs::get_tab_title);
+	ObjectTypeDB::bind_method(_MD("set_tab_icon","tab_idx","icon:Texture"),&Tabs::set_tab_icon);
+	ObjectTypeDB::bind_method(_MD("get_tab_icon:Texture","tab_idx"),&Tabs::get_tab_icon);
+	ObjectTypeDB::bind_method(_MD("remove_tab","tab_idx","icon:Texture"),&Tabs::remove_tab);
+
+	ADD_SIGNAL(MethodInfo("tab_changed",PropertyInfo(Variant::INT,"tab")));
+
+	ADD_PROPERTY( PropertyInfo(Variant::INT, "current_tab", PROPERTY_HINT_RANGE,"-1,4096,1",PROPERTY_USAGE_EDITOR), _SCS("set_current_tab"), _SCS("get_current_tab") );
+
+}
+
+Tabs::Tabs() {
+
+	current=0;
+
+}