mirror of
https://github.com/rizonesoft/Notepad3.git
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132 lines
3.9 KiB
C++
132 lines
3.9 KiB
C++
// sktoolslib - common files for SK tools
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// Copyright (C) 2016-2017, 2020-2021 Stefan Kueng
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software Foundation,
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// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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#include "stdafx.h"
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#include "ScrollTool.h"
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CScrollTool::CScrollTool(HINSTANCE hInst)
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: CWindow(hInst)
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, m_bInitCalled(false)
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, m_bRightAligned(false)
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{
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SecureZeroMemory(&ti, sizeof(ti));
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}
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CScrollTool::~CScrollTool()
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{
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}
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bool CScrollTool::Init(bool bRightAligned /* = false */)
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{
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if (!m_bInitCalled)
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{
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// the tooltips class is already registered by Windows
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bRegisterWindowCalled = true;
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// create the tooltip window
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if (!CreateEx(WS_EX_TOPMOST | WS_EX_TOOLWINDOW, WS_POPUP | TTS_NOPREFIX | TTS_ALWAYSTIP, nullptr, nullptr, TOOLTIPS_CLASSW))
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{
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return false;
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}
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//m_hwnd = CreateWindowEx(0, TOOLTIPS_CLASSW, nullptr, TTS_NOPREFIX | TTS_ALWAYSTIP, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, hParent, 0, hResource, (void *)this);
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wchar_t space[] = L" ";
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ti.cbSize = sizeof(TOOLINFO);
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ti.uFlags = TTF_TRACK;
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ti.hwnd = nullptr;
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ti.hinst = nullptr;
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ti.uId = 0;
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ti.lpszText = space;
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// ToolTip control will cover the whole window
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ti.rect.left = 0;
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ti.rect.top = 0;
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ti.rect.right = 0;
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ti.rect.bottom = 0;
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POINT point;
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::GetCursorPos(&point);
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SendMessage(*this, TTM_ADDTOOL, 0, reinterpret_cast<LPARAM>(&ti));
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SendMessage(*this, TTM_TRACKPOSITION, 0, static_cast<LPARAM>(MAKELONG(point.x, point.y)));
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SendMessage(*this, TTM_TRACKACTIVATE, true, reinterpret_cast<LPARAM>(&ti));
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m_bRightAligned = bRightAligned;
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m_bInitCalled = true;
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}
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return true;
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}
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void CScrollTool::SetText(LPPOINT pos, const wchar_t* fmt, ...)
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{
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if (!m_bInitCalled)
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{
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assert(0);
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return;
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}
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std::wstring s;
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va_list marker;
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va_start(marker, fmt);
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// Get formatted string length adding one for the NUL
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auto len = _vscwprintf(fmt, marker);
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if (len > 0)
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{
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s.resize(len + 1);
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_vsnwprintf_s(&s[0], s.size(), len, fmt, marker);
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s.resize(len);
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}
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va_end(marker);
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SIZE textSize = {0};
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if (m_bRightAligned)
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{
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auto hDC = GetDC(*this);
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GetTextExtentPoint32(hDC, s.c_str(), static_cast<int>(s.length()), &textSize);
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ReleaseDC(*this, hDC);
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}
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ti.lpszText = const_cast<LPWSTR>(s.c_str());
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SendMessage(*this, TTM_UPDATETIPTEXT, 0, reinterpret_cast<LPARAM>(&ti));
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SendMessage(*this, TTM_TRACKPOSITION, 0, MAKELONG(pos->x - textSize.cx, pos->y));
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}
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void CScrollTool::Clear()
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{
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if (m_bInitCalled)
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{
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SendMessage(*this, TTM_DELTOOL, 0, reinterpret_cast<LPARAM>(&ti));
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DestroyWindow(*this);
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}
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m_bInitCalled = false;
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}
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LONG CScrollTool::GetTextWidth(LPCWSTR szText)
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{
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SIZE textsize = {0};
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auto hDC = GetDC(*this);
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GetTextExtentPoint32(hDC, szText, static_cast<int>(wcslen(szText)), &textsize);
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ReleaseDC(*this, hDC);
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return textsize.cx;
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}
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LRESULT CScrollTool::WinMsgHandler(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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return DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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