Add zwidget

libraries/ZWidget/include/zwidget/widgets/lineedit/lineedit.h

@@ -0,0 +1,160 @@
+
+#pragma once
+
+#include "../../core/widget.h"
+#include "../../core/timer.h"
+#include <functional>
+
+class LineEdit : public Widget
+{
+public:
+	LineEdit(Widget* parent);
+	~LineEdit();
+
+	enum Alignment
+	{
+		align_left,
+		align_center,
+		align_right
+	};
+
+	Alignment GetAlignment() const;
+	bool IsReadOnly() const;
+	bool IsLowercase() const;
+	bool IsUppercase() const;
+	bool IsPasswordMode() const;
+	int GetMaxLength() const;
+
+	std::string GetText() const;
+	int GetTextInt() const;
+	float GetTextFloat() const;
+
+	std::string GetSelection() const;
+	int GetSelectionStart() const;
+	int GetSelectionLength() const;
+
+	int GetCursorPos() const;
+	Size GetTextSize();
+
+	Size GetTextSize(const std::string& str);
+	double GetPreferredContentWidth();
+	double GetPreferredContentHeight(double width);
+
+	void SetSelectAllOnFocusGain(bool enable);
+	void SelectAll();
+	void SetAlignment(Alignment alignment);
+	void SetReadOnly(bool enable = true);
+	void SetLowercase(bool enable = true);
+	void SetUppercase(bool enable = true);
+	void SetPasswordMode(bool enable = true);
+	void SetNumericMode(bool enable = true, bool decimals = false);
+	void SetMaxLength(int length);
+	void SetText(const std::string& text);
+	void SetTextInt(int number);
+	void SetTextFloat(float number, int num_decimal_places = 6);
+	void SetSelection(int pos, int length);
+	void ClearSelection();
+	void SetCursorPos(int pos);
+	void DeleteSelectedText();
+	void SetInputMask(const std::string& mask);
+	void SetDecimalCharacter(const std::string& decimal_char);
+
+	std::function<bool(int key)> FuncIgnoreKeyDown;
+	std::function<std::string(std::string text)> FuncFilterKeyChar;
+	std::function<void()> FuncBeforeEditChanged;
+	std::function<void()> FuncAfterEditChanged;
+	std::function<void()> FuncSelectionChanged;
+	std::function<void()> FuncFocusGained;
+	std::function<void()> FuncFocusLost;
+	std::function<void()> FuncEnterPressed;
+
+protected:
+	void OnPaintFrame(Canvas* canvas) override;
+	void OnPaint(Canvas* canvas) override;
+	void OnMouseMove(const Point& pos) override;
+	void OnMouseDown(const Point& pos, int key) override;
+	void OnMouseDoubleclick(const Point& pos, int key) override;
+	void OnMouseUp(const Point& pos, int key) override;
+	void OnKeyChar(std::string chars) override;
+	void OnKeyDown(EInputKey key) override;
+	void OnKeyUp(EInputKey key) override;
+	void OnGeometryChanged() override;
+	void OnEnableChanged() override;
+	void OnSetFocus() override;
+	void OnLostFocus() override;
+
+private:
+	void OnTimerExpired();
+	void OnScrollTimerExpired();
+	void UpdateTextClipping();
+
+	void Move(int steps, bool ctrl, bool shift);
+	bool InsertText(int pos, const std::string& str);
+	void Backspace();
+	void Del();
+	int GetCharacterIndex(double x);
+	int FindNextBreakCharacter(int pos);
+	int FindPreviousBreakCharacter(int pos);
+	std::string GetVisibleTextBeforeSelection();
+	std::string GetVisibleTextAfterSelection();
+	std::string GetVisibleSelectedText();
+	std::string CreatePassword(std::string::size_type num_letters) const;
+	Size GetVisualTextSize(Canvas* canvas, int pos, int npos) const;
+	Size GetVisualTextSize(Canvas* canvas) const;
+	Rect GetCursorRect();
+	Rect GetSelectionRect();
+	bool InputMaskAcceptsInput(int cursor_pos, const std::string& str);
+	void SetSelectionStart(int start);
+	void SetSelectionLength(int length);
+	void SetTextSelection(int start, int length);
+
+	static std::string ToFixed(float number, int num_decimal_places);
+	static std::string ToLower(const std::string& text);
+	static std::string ToUpper(const std::string& text);
+
+	Timer* timer = nullptr;
+	std::string text;
+	Alignment alignment = align_left;
+	int cursor_pos = 0;
+	int max_length = -1;
+	bool mouse_selecting = false;
+	bool lowercase = false;
+	bool uppercase = false;
+	bool password_mode = false;
+	bool numeric_mode = false;
+	bool numeric_mode_decimals = false;
+	bool readonly = false;
+	int selection_start = -1;
+	int selection_length = 0;
+	std::string input_mask;
+	std::string decimal_char = ".";
+
+	VerticalTextPosition vertical_text_align;
+	Timer* scroll_timer = nullptr;
+
+	bool mouse_moves_left = false;
+	bool cursor_blink_visible = true;
+	unsigned int blink_timer = 0;
+	int clip_start_offset = 0;
+	int clip_end_offset = 0;
+	bool ignore_mouse_events = false;
+
+	struct UndoInfo
+	{
+		/* set undo text when:
+		   - added char after moving
+		   - destructive block operation (del, cut etc)
+		   - beginning erase
+		*/
+		std::string undo_text;
+		bool first_erase = false;
+		bool first_text_insert = false;
+	};
+	
+	UndoInfo undo_info;
+
+	bool select_all_on_focus_gain = true;
+
+	static const std::string break_characters;
+	static const std::string numeric_mode_characters;
+};