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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
| unit UPersoHint;
interface
uses
Windows, Messages, SysUtils,Classes, Graphics, Controls, Forms;
type
TPersoHintWindow = class(THintWindow)
protected
procedure WMEraseBkgnd(var Msg: TWMEraseBkgnd); message WM_ERASEBKGND;
procedure Paint; override;
procedure NCPaint(DC: HDC); override;
public
constructor Create(AOwner: TComponent); override;
procedure ActivateHint(Rect: TRect; const AHint: string);override;
end;
var
StartColor:TColor;
EndColor:TColor;
implementation
type
COLOR16 = Word;
TTriVertex = packed record
x: Longint;
y: Longint;
Red: COLOR16;
Green: COLOR16;
Blue: COLOR16;
Alpha: COLOR16;
end;
function GradientFill(DC: HDC; Vertex: PTriVertex; NumVertex: ULONG; Mesh: Pointer; NumMesh, Mode: ULONG): BOOL; stdcall;external 'msimg32.dll';
{not mine}
procedure Antialiasing(Bmp: TBitmap; Percent: Integer);
type
TRGBTripleArray = array[0..32767] of TRGBTriple;
PRGBTripleArray = ^TRGBTripleArray;
var
SL, SL2: PRGBTripleArray;
l, m, p: Integer;
R, G, B: TColor; v: Single;
R1, R2, G1, G2, B1, B2: Byte;
begin
Bmp.PixelFormat :=pf24bit;
with Bmp.Canvas do
begin v:= 50 / (Percent + 50);
Brush.Style := bsClear;
Pixels[1, 1] := Pixels[1, 1];
for l := 0 to Bmp.Height - 1 do
begin
SL := Bmp.ScanLine[l];
for p := 1 to Bmp.Width - 1 do
begin
R1 := SL[p].rgbtRed;
G1 := SL[p].rgbtGreen;
B1 := SL[p].rgbtBlue;
// Left
if (p < 1) then m := Bmp.Width
else
m := p - 1;
R2 := SL[m].rgbtRed;
G2 := SL[m].rgbtGreen;
B2 := SL[m].rgbtBlue;
if (R1 <> R2) or (G1 <> G2) or (B1 <> B2) then
begin
R := Round(R1 + (R2 - R1) * v);
G := Round(G1 + (G2 - G1) *v);
B := Round(B1 + (B2 - B1) * v);
SL[m].rgbtRed := R;
SL[m].rgbtGreen := G;
SL[m].rgbtBlue := B;
end;
//Right
if (p > Bmp.Width - 2) then m := 0
else
m := p + 1;
R2 := SL[m].rgbtRed;
G2 := SL[m].rgbtGreen;
B2 := SL[m].rgbtBlue;
if (R1 <> R2) or (G1 <> G2) or (B1 <> B2) then
begin
R := Round(R1 + (R2 - R1) * v);
G := Round(G1 + (G2 - G1) * v);
B := Round(B1 + (B2 - B1) * v);
SL[m].rgbtRed := R;
SL[m].rgbtGreen := G;
SL[m].rgbtBlue := B;
end;
if (l < 1) then m := Bmp.Height - 1
else
m := l - 1;
//Over
SL2 := Bmp.ScanLine[m];
R2 := SL2[p].rgbtRed;
G2 := SL2[p].rgbtGreen;
B2 := SL2[p].rgbtBlue;
if (R1 <> R2) or (G1 <> G2) or (B1 <> B2) then
begin
R := Round(R1 + (R2 - R1) *v);
G := Round(G1 + (G2 - G1) * v);
B := Round(B1 + (B2 - B1) * v);
SL2[p].rgbtRed := R;
SL2[p].rgbtGreen := G;
SL2[p].rgbtBlue := B;
end;
if (l > Bmp.Height - 2) then m := 0
else
m := l + 1;
//Under
SL2 := Bmp.ScanLine[m];
R2 := SL2[p].rgbtRed;
G2 := SL2[p].rgbtGreen;
B2 := SL2[p].rgbtBlue;
if (R1 <> R2) or (G1 <> G2) or (B1 <> B2) then
begin
R := Round(R1 + (R2 - R1) * v);
G := Round(G1 + (G2 - G1) * v);
B := Round(B1 + (B2 - B1) * v);
SL2[p].rgbtRed := R;
SL2[p].rgbtGreen := G;
SL2[p].rgbtBlue := B;
end;
end;
end;
end;
end;
constructor TPersoHintWindow.Create(AOwner: TComponent);
begin
inherited Create(AOwner);
StartColor:=clWhite;
EndColor:=$00EFDACA;
end;
procedure TPersoHintWindow.WMEraseBkgnd(var Msg: TWMEraseBkgnd);
begin
Msg.Result :=1;
end;
procedure TPersoHintWindow.Paint;
procedure Cplt(Var AVertex:TTriVertex;AColor:TColor);
begin
AVertex.Red:=GetRValue(AColor) shl 8;
AVertex.Green:=GetGValue(AColor)shl 8;
AVertex.Blue:=GetBValue(AColor)shl 8;
AVertex.Alpha:=0;
end;
var
Sz:TSize;
S:string;
vertex:array[0..1] of TTriVertex;
gTri :TGradientRect;
bmp:TBitmap;
begin
S:= Caption;
bmp:=TBitmap.Create;
with bmp do
try
Sz:= Canvas.TextExtent(S);
Width :=Sz.cx+8;
Height :=Sz.cy+6;
Cplt(vertex[0],StartColor);
vertex[0].X:=0;
vertex[0].Y:=0;
Cplt(vertex[1],EndColor);
vertex[1].X:=Width ;
vertex[1].Y:=Height;
gTri.UpperLeft := 0;
gTri.LowerRight := 1;
GradientFill(Canvas.handle,@vertex , 2, @gTri, 1, GRADIENT_FILL_RECT_V);
Canvas.Brush.Style:=bsClear;
Canvas.TextOut(4,2,S);
Antialiasing(bmp,5);
Self.Width :=Width;
Self.Height :=Height;
Self.Canvas.Draw(0,0,bmp);
finally
bmp.Free();
end;
end;
procedure TPersoHintWindow.ActivateHint(Rect: TRect; const AHint: string);
begin
if not IsWindowvisible(Self.Handle) then
inherited;
end;
procedure TPersoHintWindow.NCPaint(DC: HDC);
begin
with TCanvas.Create do
begin
Handle :=DC;
Brush.Color :=clblack;
fillrect(cliprect);
free;
end;
end;
initialization
if not (csDesigning in Application.ComponentState) then
HintWindowClass := TPersoHintWindow;
end. |
Unité pour changer infobulle des controls
Répondre avec citation
Partager