Add tooltip to buttons in input gui

src/common/input/Button.cpp

@@ -51,6 +51,19 @@ void Button::GetText(char* const text, size_t size) const
 	SendMessage(m_button_hwnd, WM_GETTEXT, size, reinterpret_cast<LPARAM>(text));
 }
 
+void Button::AddTooltip(HWND hwnd, HWND tooltip_hwnd, char *text) const
+{
+	assert((hwnd != NULL) && (tooltip_hwnd != NULL));
+
+	TOOLINFO tool = { 0 };
+	tool.cbSize = sizeof(tool);
+	tool.hwnd = hwnd;
+	tool.uFlags = TTF_IDISHWND | TTF_SUBCLASS;
+	tool.uId = reinterpret_cast<UINT_PTR>(m_button_hwnd);
+	tool.lpszText = text;
+	SendMessage(tooltip_hwnd, TTM_ADDTOOL, 0, reinterpret_cast<LPARAM>(&tool));
+}
+
 LRESULT CALLBACK ButtonDukeSubclassProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, UINT_PTR uIdSubclass, DWORD_PTR dwRefData)
 {
 	switch (uMsg)

src/common/input/Button.h

@@ -50,6 +50,7 @@ public:
 	int GetId() const { return m_id; }
 	int GetIndex() const { return m_index; }
 	void *GetWnd() const { return m_wnd; }
+	void AddTooltip(HWND hwnd, HWND tooltip_hwnd, char *text) const;
 
 
 private:

src/common/input/EmuDevice.cpp

@@ -31,9 +31,12 @@
 #include "gui/resource/ResCxbx.h"
 
 
+static char *tooltip_text = "Left-click: start input detection\nRight-click: clear binding\nShift + right-click: toggle mouse input mode";
+
 EmuDevice::EmuDevice(int type, HWND hwnd, void *wnd)
 {
 	m_hwnd = hwnd;
+	CreateTooltipWindow();
 
 	switch (type)
 	{
@@ -41,6 +44,7 @@ EmuDevice::EmuDevice(int type, HWND hwnd, void *wnd)
 	case to_underlying(XBOX_INPUT_DEVICE::MS_CONTROLLER_S): {
 		for (size_t i = 0; i < ARRAY_SIZE(button_xbox_ctrl_id); i++) {
 			m_buttons.push_back(new Button(button_xbox_ctrl_id[i], i, hwnd, wnd));
+			m_buttons.back()->AddTooltip(m_hwnd, m_tooltip_hwnd, tooltip_text);
 
 			// Install the subclass for the button control
 			SetWindowSubclass(GetDlgItem(hwnd, button_xbox_ctrl_id[i]), ButtonDukeSubclassProc, 0, reinterpret_cast<DWORD_PTR>(m_buttons[i]));
@@ -51,6 +55,7 @@ EmuDevice::EmuDevice(int type, HWND hwnd, void *wnd)
 	case to_underlying(XBOX_INPUT_DEVICE::STEEL_BATTALION_CONTROLLER): {
 		for (size_t i = 0; i < ARRAY_SIZE(button_sbc_id); i++) {
 			m_buttons.push_back(new Button(button_sbc_id[i], i, hwnd, wnd));
+			m_buttons.back()->AddTooltip(m_hwnd, m_tooltip_hwnd, tooltip_text);
 
 			// Install the subclass for the button control
 			SetWindowSubclass(GetDlgItem(hwnd, button_sbc_id[i]), ButtonSbcSubclassProc, 0, reinterpret_cast<DWORD_PTR>(m_buttons[i]));
@@ -63,6 +68,7 @@ EmuDevice::EmuDevice(int type, HWND hwnd, void *wnd)
 
 EmuDevice::~EmuDevice()
 {
+	DestroyWindow(m_tooltip_hwnd);
 	for (auto button : m_buttons) {
 		delete button;
 	}
@@ -99,3 +105,17 @@ void EmuDevice::ClearButtons()
 		button->ClearText();
 		});
 }
+
+void EmuDevice::CreateTooltipWindow()
+{
+	m_tooltip_hwnd = CreateWindow(TOOLTIPS_CLASS, NULL,
+		WS_POPUP | TTS_ALWAYSTIP,
+		CW_USEDEFAULT, CW_USEDEFAULT,
+		CW_USEDEFAULT, CW_USEDEFAULT,
+		m_hwnd, NULL,
+		GetModuleHandle(NULL), NULL);
+
+	SendMessage(m_tooltip_hwnd, TTM_ACTIVATE, TRUE, 0);
+	SendMessage(m_tooltip_hwnd, TTM_SETMAXTIPWIDTH, 0, 500);
+	SendMessage(m_tooltip_hwnd, TTM_SETDELAYTIME, TTDT_AUTOPOP, 15000);
+}

src/common/input/EmuDevice.h

@@ -46,8 +46,11 @@ public:
 
 
 private:
+	void CreateTooltipWindow();
+
 	std::vector<Button*> m_buttons;
 	HWND m_hwnd;
+	HWND m_tooltip_hwnd;
 };
 
 template void EmuDevice::BindDefault(const std::array<const char *, XBOX_CTRL_NUM_BUTTONS> &arr);