Copy, cut and paste for Textboxes

8 files changed, 358 insertions, 18 deletions

diff --git a/src/interface/Component.cpp b/src/interface/Component.cpp
index 7e22984..3c52ed9 100644
--- a/src/interface/Component.cpp
+++ b/src/interface/Component.cpp
@@ -18,7 +18,8 @@ Component::Component(Window* parent_state):
 	textPosition(0, 0),
 	textSize(0, 0),
 	iconPosition(0, 0),
-	drawn(false)
+	drawn(false),
+	menu(NULL)
 {
 
 }
@@ -33,7 +34,8 @@ Component::Component(Point position, Point size):
 	textPosition(0, 0),
 	textSize(0, 0),
 	iconPosition(0, 0),
-	drawn(false)
+	drawn(false),
+	menu(NULL)
 {
 
 }
@@ -48,7 +50,8 @@ Component::Component():
 	textPosition(0, 0),
 	textSize(0, 0),
 	iconPosition(0, 0),
-	drawn(false)
+	drawn(false),
+	menu(NULL)
 {
 
 }
@@ -154,6 +157,11 @@ void Component::SetParent(Panel* new_parent)
 // ***** OVERRIDEABLES *****
 // Kept empty.
 
+void Component::OnContextMenuAction(int item)
+{
+
+}
+
 void Component::Draw(const Point& screenPos)
 {
 	drawn = true;
@@ -217,5 +225,6 @@ void Component::OnMouseWheelInside(int localx, int localy, int d)
 
 Component::~Component()
 {
-
+	if(menu)
+		delete menu;
 }
diff --git a/src/interface/Component.h b/src/interface/Component.h
index 555be84..bd3878a 100644
--- a/src/interface/Component.h
+++ b/src/interface/Component.h
@@ -7,6 +7,7 @@
 
 namespace ui
 {
+	class ContextMenu;
 	class Window;
 	class Panel;
 	
@@ -25,6 +26,7 @@ namespace ui
 		ui::Point textPosition;
 		ui::Point textSize;
 		ui::Point iconPosition;
+		ui::ContextMenu * menu;
 	public:
 		Component(Window* parent_state);
 		Component(Point position, Point size);
@@ -55,6 +57,8 @@ namespace ui
 
 		//Get the parent component.
 		inline Panel* const GetParent() const { return _parent; }
+
+		virtual void OnContextMenuAction(int item);
 		
 		//UI functions:
 		/*
diff --git a/src/interface/ContextMenu.cpp b/src/interface/ContextMenu.cpp
new file mode 100644
index 0000000..632b314
--- /dev/null
+++ b/src/interface/ContextMenu.cpp
@@ -0,0 +1,86 @@
+#include "ContextMenu.h"
+
+using namespace ui;
+
+class ContextMenu::ItemSelectedAction: public ButtonAction
+{
+	ContextMenu * window;
+	int item;
+public:
+	ItemSelectedAction(ContextMenu * window, int itemID): window(window), item(itemID) { }
+	virtual void ActionCallback(ui::Button *sender)
+	{
+		window->ActionCallback(sender, item);
+	}
+};
+
+ContextMenu::ContextMenu(Component * source):
+		Window(ui::Point(0, 0), ui::Point(0, 0)),
+		Appearance(source->Appearance),
+		source(source)
+{
+}
+
+void ContextMenu::Show(ui::Point position)
+{
+	for(int i = 0; i < buttons.size(); i++)
+	{
+		RemoveComponent(buttons[i]);
+		delete buttons[i];
+	}
+	buttons.clear();
+
+	Position = position;
+	Size.Y = items.size()*15;
+	Size.X = 100;
+
+	int currentY = 1;
+	for(int i = 0; i < items.size(); i++)
+	{
+		Button * tempButton = new Button(Point(1, currentY), Point(Size.X-2, 14), items[i].Text);
+		tempButton->Appearance = Appearance;
+		tempButton->Enabled = items[i].Enabled;
+		tempButton->SetActionCallback(new ItemSelectedAction(this, items[i].ID));
+		buttons.push_back(tempButton);
+		AddComponent(tempButton);
+		currentY += 15;
+	}
+
+	ui::Engine::Ref().ShowWindow(this);
+}
+
+void ContextMenu::ActionCallback(ui::Button *sender, int item)
+{
+	ui::Engine::Ref().CloseWindow();
+	source->OnContextMenuAction(item);
+}
+
+void ContextMenu::OnMouseDown(int x, int y, unsigned button)
+{
+	if(!(x > Position.X && y > Position.Y && y < Position.Y+Size.Y && x < Position.X+Size.X)) //Clicked outside window
+		ui::Engine::Ref().CloseWindow();
+}
+
+void ContextMenu::RemoveItem(int id)
+{
+	for(int i = 0; i < items.size(); i++)
+	{
+		if(items[i].ID == id)
+		{
+			items.erase(items.begin()+i);
+			break;
+		}
+	}
+}
+
+void ContextMenu::AddItem(ContextMenuItem item)
+{
+	items.push_back(item);
+}
+
+void ContextMenu::OnDraw()
+{
+	Graphics * g = ui::Engine::Ref().g;
+	g->fillrect(Position.X, Position.Y, Size.X, Size.Y, 100, 100, 100, 255);
+	g->drawrect(Position.X, Position.Y, Size.X, Size.Y, Appearance.BackgroundInactive.Red, Appearance.BackgroundInactive.Green, Appearance.BackgroundInactive.Blue, Appearance.BackgroundInactive.Alpha);
+}
\ No newline at end of file
diff --git a/src/interface/ContextMenu.h b/src/interface/ContextMenu.h
new file mode 100644
index 0000000..fb804c3
--- /dev/null
+++ b/src/interface/ContextMenu.h
@@ -0,0 +1,39 @@
+#ifndef The_Powder_Toy_ContextMenu_h
+#define The_Powder_Toy_ContextMenu_h
+
+#include "Window.h"
+#include "Appearance.h"
+#include "Button.h"
+
+namespace ui
+{
+
+class ContextMenuItem
+{
+public:
+	int ID;
+	std::string Text;
+	bool Enabled;
+	ContextMenuItem(std::string text, int id, bool enabled) : Text(text), ID(id), Enabled(enabled) {}
+};
+
+class ContextMenu: public ui::Window, public ButtonAction {
+	std::vector<Button*> buttons;
+	std::vector<ContextMenuItem> items;
+	bool isMouseInside;
+	ui::Component * source;
+public:
+	ui::Appearance Appearance;
+	class ItemSelectedAction;
+	ContextMenu(Component * source);
+	virtual void ActionCallback(ui::Button *sender, int item);
+	virtual void AddItem(ContextMenuItem item);
+	virtual void RemoveItem(int id);
+	virtual void Show(ui::Point position);
+	virtual void OnDraw();	
+	virtual void OnMouseDown(int x, int y, unsigned button);
+	virtual ~ContextMenu() {}
+};
+}
+
+#endif
\ No newline at end of file
diff --git a/src/interface/Label.cpp b/src/interface/Label.cpp
index b7283c2..fd91086 100644
--- a/src/interface/Label.cpp
+++ b/src/interface/Label.cpp
@@ -2,6 +2,7 @@
 #include "Config.h"
 #include "Point.h"
 #include "Label.h"
+#include "ContextMenu.h"
 
 using namespace ui;
 
@@ -18,6 +19,8 @@ Label::Label(Point position, Point size, std::string labelText):
 	autoHeight(size.Y==-1?true:false),
 	caret(-1)
 {
+	menu = new ContextMenu(this);
+	menu->AddItem(ContextMenuItem("Copy", 0, true));
 }
 
 Label::~Label()
@@ -100,16 +103,52 @@ std::string Label::GetText()
 	return this->text;
 }
 
+void Label::OnContextMenuAction(int item)
+{
+	switch(item)
+	{
+	case 0:
+		copySelection();
+		break;
+	}
+}
+
 void Label::OnMouseClick(int x, int y, unsigned button)
 {
-	selecting = true;
+	if(button == BUTTON_RIGHT)
+	{
+		if(menu)
+			menu->Show(GetParentWindow()->Position + Position + ui::Point(x, y));
+	}
+	else
+	{
+		selecting = true;
+		if(multiline)
+			selectionIndex0 = Graphics::CharIndexAtPosition((char*)textLines.c_str(), x-textPosition.X, y-textPosition.Y);
+		else
+			selectionIndex0 = Graphics::CharIndexAtPosition((char*)text.c_str(), x-textPosition.X, y-textPosition.Y);
+		selectionIndex1 = selectionIndex0;
+
+		updateSelection();
+	}
+}
+
+void Label::copySelection()
+{
+	std::string currentText;
+
 	if(multiline)
-		selectionIndex0 = Graphics::CharIndexAtPosition((char*)textLines.c_str(), x-textPosition.X, y-textPosition.Y);
+		currentText = textLines;
 	else
-		selectionIndex0 = Graphics::CharIndexAtPosition((char*)text.c_str(), x-textPosition.X, y-textPosition.Y);
-	selectionIndex1 = selectionIndex0;
+		currentText = text;
 
-	updateSelection();
+	if(selectionIndex1 > selectionIndex0) {
+		clipboard_push_text((char*)currentText.substr(selectionIndex0, selectionIndex1-selectionIndex0).c_str());
+	} else if(selectionIndex0 > selectionIndex1) {
+		clipboard_push_text((char*)currentText.substr(selectionIndex1, selectionIndex0-selectionIndex1).c_str());
+	} else {
+		clipboard_push_text((char*)currentText.c_str());
+	}
 }
 
 void Label::OnMouseUp(int x, int y, unsigned button)
@@ -117,6 +156,14 @@ void Label::OnMouseUp(int x, int y, unsigned button)
 	selecting = false;
 }
 
+void Label::OnKeyPress(int key, Uint16 character, bool shift, bool ctrl, bool alt)
+{
+	if(ctrl && key == 'c')
+	{
+		copySelection();
+	}
+}
+
 void Label::OnMouseMoved(int localx, int localy, int dx, int dy)
 {
 	if(selecting)
diff --git a/src/interface/Label.h b/src/interface/Label.h
index c8c63d4..1fa7148 100644
--- a/src/interface/Label.h
+++ b/src/interface/Label.h
@@ -37,6 +37,8 @@ namespace ui
 
 		int getLowerSelectionBound();
 		int getHigherSelectionBound();
+
+		virtual void copySelection();
 	public:
 		//Label(Window* parent_state, std::string labelText);
 		Label(Point position, Point size, std::string labelText);
@@ -53,9 +55,11 @@ namespace ui
 
 		void SetTextColour(Colour textColour) { this->textColour = textColour; }
 
+		virtual void OnContextMenuAction(int item);
 		virtual void OnMouseClick(int x, int y, unsigned button);
 		virtual void OnMouseUp(int x, int y, unsigned button);
 		virtual void OnMouseMoved(int localx, int localy, int dx, int dy);
+		virtual void OnKeyPress(int key, Uint16 character, bool shift, bool ctrl, bool alt);
 		virtual void Draw(const Point& screenPos);
 		virtual void Tick(float dt);
 	};
diff --git a/src/interface/Textbox.cpp b/src/interface/Textbox.cpp
index fbe3c6b..54a9d40 100644
--- a/src/interface/Textbox.cpp
+++ b/src/interface/Textbox.cpp
@@ -5,6 +5,7 @@
 #include "interface/Point.h"
 #include "interface/Textbox.h"
 #include "interface/Keys.h"
+#include "ContextMenu.h"
 
 using namespace ui;
 
@@ -19,6 +20,11 @@ Textbox::Textbox(Point position, Point size, std::string textboxText, std::strin
 
 	SetText(textboxText);
 	cursor = text.length();
+
+	menu->RemoveItem(0);
+	menu->AddItem(ContextMenuItem("Cut", 1, true));
+	menu->AddItem(ContextMenuItem("Copy", 0, true));
+	menu->AddItem(ContextMenuItem("Paste", 2, true));
 }
 
 Textbox::~Textbox()
@@ -27,6 +33,18 @@ Textbox::~Textbox()
 		delete actionCallback;
 }
 
+void Textbox::SetHidden(bool hidden)
+{
+	menu->RemoveItem(0);
+	menu->RemoveItem(1);
+	menu->RemoveItem(2);
+	menu->AddItem(ContextMenuItem("Cut", 1, !hidden));
+	menu->AddItem(ContextMenuItem("Copy", 0, !hidden));
+	menu->AddItem(ContextMenuItem("Paste", 2, true));
+
+	masked = hidden;
+}
+
 void Textbox::SetPlaceholder(std::string text)
 {
 	placeHolder = text;
@@ -65,9 +83,134 @@ std::string Textbox::GetText()
 	return backingText;
 }
 
+void Textbox::OnContextMenuAction(int item)
+{
+	switch(item)
+	{
+	case 0:
+		copySelection();
+		break;
+	case 1:
+		cutSelection();
+		break;
+	case 2:
+		pasteIntoSelection();
+		break;
+	}
+}
+
+void Textbox::cutSelection()
+{
+	char * clipboardText;
+	clipboardText = clipboard_pull_text();
+	std::string newText = std::string(clipboardText);
+	free(clipboardText);
+	if(HasSelection())
+	{
+		if(getLowerSelectionBound() < 0 || getHigherSelectionBound() > backingText.length())
+			return;
+		clipboard_push_text((char*)backingText.substr(getLowerSelectionBound(), getHigherSelectionBound()-getLowerSelectionBound()).c_str());
+		backingText.erase(backingText.begin()+getLowerSelectionBound(), backingText.begin()+getHigherSelectionBound());
+		cursor = getLowerSelectionBound(); 
+	}
+	else
+	{
+		clipboard_push_text((char*)backingText.c_str());
+		backingText.clear();
+	}
+	ClearSelection();
+
+	if(masked)
+	{
+		std::string maskedText = std::string(backingText);
+		std::fill(maskedText.begin(), maskedText.end(), '\x8D');
+		Label::SetText(maskedText);
+	}
+	else
+	{
+		text = backingText;
+	}
+	if(actionCallback)
+		actionCallback->TextChangedCallback(this);
+
+	if(multiline)
+		updateMultiline();
+	updateSelection();
+	TextPosition(text);
+
+	if(cursor)
+	{
+		Graphics::PositionAtCharIndex(multiline?((char*)textLines.c_str()):((char*)text.c_str()), cursor, cursorPositionX, cursorPositionY);
+	}
+	else
+	{
+		cursorPositionY = cursorPositionX = 0;
+	}
+}
+
+void Textbox::pasteIntoSelection()
+{
+	char * clipboardText;
+	clipboardText = clipboard_pull_text();
+	std::string newText = std::string(clipboardText);
+	free(clipboardText);
+	if(HasSelection())
+	{
+		if(getLowerSelectionBound() < 0 || getHigherSelectionBound() > backingText.length())
+			return;
+		backingText.erase(backingText.begin()+getLowerSelectionBound(), backingText.begin()+getHigherSelectionBound());
+		cursor = getLowerSelectionBound();
+	}
+	backingText.insert(cursor, newText);
+	ClearSelection();
+
+	if(masked)
+	{
+		std::string maskedText = std::string(backingText);
+		std::fill(maskedText.begin(), maskedText.end(), '\x8D');
+		Label::SetText(maskedText);
+	}
+	else
+	{
+		text = backingText;
+	}
+	if(actionCallback)
+		actionCallback->TextChangedCallback(this);
+
+	if(multiline)
+		updateMultiline();
+	updateSelection();
+	TextPosition(text);
+
+	if(cursor)
+	{
+		Graphics::PositionAtCharIndex(multiline?((char*)textLines.c_str()):((char*)text.c_str()), cursor, cursorPositionX, cursorPositionY);
+	}
+	else
+	{
+		cursorPositionY = cursorPositionX = 0;
+	}
+}
+
 void Textbox::OnKeyPress(int key, Uint16 character, bool shift, bool ctrl, bool alt)
 {
 	bool changed = false;
+	if(ctrl && key == 'c' && !masked)
+	{
+		copySelection();
+		return;
+	}
+	if(ctrl && key == 'v')
+	{
+		pasteIntoSelection();
+		return;
+	}
+	if(ctrl && key == 'x' && !masked)
+	{
+		cutSelection();
+		return;
+	}
+
 	try
 	{
 		switch(key)
@@ -190,15 +333,19 @@ void Textbox::OnKeyPress(int key, Uint16 character, bool shift, bool ctrl, bool
 
 void Textbox::OnMouseClick(int x, int y, unsigned button)
 {
-	mouseDown = true;
-	cursor = Graphics::CharIndexAtPosition(multiline?((char*)textLines.c_str()):((char*)text.c_str()), x-textPosition.X, y-textPosition.Y);
-	if(cursor)
-	{
-		Graphics::PositionAtCharIndex(multiline?((char*)textLines.c_str()):((char*)text.c_str()), cursor, cursorPositionX, cursorPositionY);
-	}
-	else
+
+	if(button != BUTTON_RIGHT)
 	{
-		cursorPositionY = cursorPositionX = 0;
+		mouseDown = true;
+		cursor = Graphics::CharIndexAtPosition(multiline?((char*)textLines.c_str()):((char*)text.c_str()), x-textPosition.X, y-textPosition.Y);
+		if(cursor)
+		{
+			Graphics::PositionAtCharIndex(multiline?((char*)textLines.c_str()):((char*)text.c_str()), cursor, cursorPositionX, cursorPositionY);
+		}
+		else
+		{
+			cursorPositionY = cursorPositionX = 0;
+		}
 	}
 	Label::OnMouseClick(x, y, button);
 }
diff --git a/src/interface/Textbox.h b/src/interface/Textbox.h
index e8e9d22..95588cb 100644
--- a/src/interface/Textbox.h
+++ b/src/interface/Textbox.h
@@ -26,6 +26,9 @@ protected:
 	TextboxAction *actionCallback;
 	std::string backingText;
 	std::string placeHolder;
+
+	virtual void cutSelection();
+	virtual void pasteIntoSelection();
 public:
 	Textbox(Point position, Point size, std::string textboxText = "", std::string textboxPlaceholder = "");
 	virtual ~Textbox();
@@ -37,10 +40,11 @@ public:
 	virtual void SetPlaceholder(std::string text);
 
 	void SetBorder(bool border) { this->border = border; };
-	void SetHidden(bool hidden) { masked = hidden; }
+	void SetHidden(bool hidden);
 	bool GetHidden() { return masked; }
 	void SetActionCallback(TextboxAction * action) { actionCallback = action; }
 
+	virtual void OnContextMenuAction(int item);
 	virtual void OnMouseClick(int x, int y, unsigned button);
 	virtual void OnMouseUp(int x, int y, unsigned button);
 	virtual void OnMouseMoved(int localx, int localy, int dx, int dy);