1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
namespace hiro {
static auto CALLBACK ToolTip_windowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) -> LRESULT {
if(auto toolTip = (pToolTip*)GetWindowLongPtr(hwnd, GWLP_USERDATA)) {
if(auto result = toolTip->windowProc(hwnd, msg, wparam, lparam)) {
return result();
}
}
return DefWindowProc(hwnd, msg, wparam, lparam);
}
pToolTip::pToolTip(const string& toolTipText) {
text = toolTipText;
htheme = OpenThemeData(hwnd, L"TOOLTIP");
hwnd = CreateWindowEx(
WS_EX_TOOLWINDOW | WS_EX_TOPMOST | (htheme ? WS_EX_LAYERED : 0), L"hiroToolTip", L"",
WS_POPUP, 0, 0, 0, 0,
0, 0, GetModuleHandle(0), 0
);
SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)this);
tracking.x = -1;
tracking.y = -1;
timeout.setInterval(Timeout);
timeout.onActivate([&] { hide(); });
}
pToolTip::~pToolTip() {
hide();
if(htheme) { CloseThemeData(htheme); htheme = nullptr; }
if(hwnd) { DestroyWindow(hwnd); hwnd = nullptr; }
}
auto pToolTip::drawLayered() -> void {
auto hdcOutput = GetDC(nullptr);
u32* below = nullptr;
auto hdcBelow = CreateCompatibleDC(hdcOutput);
auto hbmBelow = CreateBitmap(hdcBelow, size.cx, size.cy, below);
SelectObject(hdcBelow, hbmBelow);
RECT rc{};
rc.left = 0, rc.top = 0, rc.right = size.cx, rc.bottom = size.cy;
DrawThemeBackground(htheme, hdcBelow, TTP_STANDARD, TTSS_NORMAL, &rc, nullptr);
u32* above = nullptr;
auto hdcAbove = CreateCompatibleDC(hdcOutput);
auto hbmAbove = CreateBitmap(hdcAbove, size.cx, size.cy, above);
SelectObject(hdcAbove, hbmAbove);
memory::copy<u32>(above, below, size.cx * size.cy);
auto hfont = pFont::create(Font());
SelectObject(hdcAbove, hfont);
SetBkMode(hdcAbove, TRANSPARENT);
SetTextColor(hdcAbove, RGB(0, 0, 0));
utf16_t drawText(text);
rc.left += 6, rc.top += 6, rc.right -= 6, rc.bottom -= 6;
DrawText(hdcAbove, drawText, -1, &rc, DT_LEFT | DT_TOP);
DeleteObject(hfont);
for(u32 n : range(size.cx * size.cy)) {
below[n] = (below[n] & 0xff000000) | (above[n] & 0x00ffffff);
}
BLENDFUNCTION blend{};
blend.BlendOp = AC_SRC_OVER;
blend.SourceConstantAlpha = 255;
blend.AlphaFormat = AC_SRC_ALPHA;
POINT zero{};
zero.x = 0, zero.y = 0;
UpdateLayeredWindow(hwnd, hdcOutput, &position, &size, hdcBelow, &zero, RGB(0, 0, 0), &blend, ULW_ALPHA);
DeleteObject(hbmAbove);
DeleteObject(hbmBelow);
DeleteDC(hdcAbove);
DeleteDC(hdcBelow);
ReleaseDC(nullptr, hdcOutput);
}
auto pToolTip::drawOpaque() -> void {
PAINTSTRUCT ps;
BeginPaint(hwnd, &ps);
RECT rc{};
GetClientRect(hwnd, &rc);
auto brush = CreateSolidBrush(RGB(0, 0, 0));
FillRect(ps.hdc, &rc, brush);
DeleteObject(brush);
rc.left += 1, rc.top += 1, rc.right -= 1, rc.bottom -= 1;
brush = CreateSolidBrush(RGB(255, 255, 225));
FillRect(ps.hdc, &rc, brush);
DeleteObject(brush);
rc.left += 5, rc.top += 5, rc.right -= 5, rc.bottom -= 5;
SetBkMode(ps.hdc, TRANSPARENT);
auto font = pFont::create(Font());
SelectObject(ps.hdc, font);
SetTextColor(ps.hdc, RGB(0, 0, 0));
DrawText(ps.hdc, utf16_t(text), -1, &rc, DT_LEFT | DT_TOP);
DeleteObject(font);
EndPaint(hwnd, &ps);
}
auto pToolTip::show() -> void {
if(auto toolTip = pApplication::state().toolTip) {
if(toolTip != this) toolTip->hide();
}
pApplication::state().toolTip = this;
GetCursorPos(&position);
if(position.x == tracking.x && position.y == tracking.y) return;
tracking.x = position.x, tracking.y = position.y;
position.y += 18;
auto textSize = pFont::size(Font(), text ? text : " ");
size.cx = 12 + textSize.width();
size.cy = 12 + textSize.height();
//try to keep the tool-tip onscreen
auto desktop = pDesktop::size();
if(position.x + size.cx >= desktop.width ()) position.x = desktop.width () - size.cx;
if(position.y + size.cy >= desktop.height()) position.y = desktop.height() - size.cy;
if(position.x < 0) position.x = 0;
if(position.y < 0) position.y = 0;
SetWindowPos(hwnd, HWND_TOP, position.x, position.y, size.cx, size.cy, SWP_NOACTIVATE | SWP_SHOWWINDOW);
if(htheme) drawLayered();
timeout.setEnabled(true);
}
auto pToolTip::hide() -> void {
pApplication::state().toolTip = nullptr;
timeout.setEnabled(false);
ShowWindow(hwnd, SW_HIDE);
GetCursorPos(&tracking);
}
auto pToolTip::windowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) -> maybe<LRESULT> {
switch(msg) {
case WM_ERASEBKGND:
case WM_PAINT:
if(htheme) break;
drawOpaque();
return msg == WM_ERASEBKGND;
case WM_MOUSEMOVE:
case WM_MOUSELEAVE: {
POINT point{};
GetCursorPos(&point);
if(point.x != tracking.x || point.y != tracking.y) hide();
} break;
case WM_LBUTTONDOWN: case WM_LBUTTONUP:
case WM_MBUTTONDOWN: case WM_MBUTTONUP:
case WM_RBUTTONDOWN: case WM_RBUTTONUP:
hide();
break;
}
return {};
}
}
|
