ultimatepp/uppsrc/ide/IconDes/Paint.cpp
2026-05-05 14:43:56 +02:00

241 lines
6.2 KiB
C++

#include "IconDes.h"
#define IMAGECLASS IconDesImg
#define IMAGEFILE <ide/IconDes/IconDes.iml>
#include <Draw/iml_source.h>
void IconShow::Paint(Draw& w)
{
Size sz = GetSize();
static Color color[] = { White(), Black(), WhiteGray(), LtGray(), Gray(),
Yellow(), Brown(), Red(), Green(), Blue(), Cyan(), Magenta() };
int image_scale = ImlFlagsToDPIScale(flags);
auto GetSize = [&](int scale) {
return scale * image.GetSize() / image_scale;
};
auto GetScaled = [&](int scale) {
if(image_scale == DPI_600) {
if(scale == DPI_100)
return Downscale6x(image);
if(scale == DPI_150)
return Downscale2x(DownSample2x(image));
if(scale == DPI_200)
return DownSample3x(image);
if(scale == DPI_300)
return DownSample2x(image);
}
return DPISmartRescale(image, scale * image.GetSize() / image_scale);
};
Size sz300 = GetSize(DPI_300);
if(sz300.cx * sz300.cy > 20000) {
w.DrawRect(sz, SColorPaper);
w.DrawImage(DPI(5), DPI(5), image);
return;
}
int n = min(__countof(color), sz.cx / (2 * sz300.cx + DPI(20)));
int cx = sz.cx / n;
int y = DPI(5);
for(int i = 0; i < n; i++)
w.DrawRect(i * cx, 0, cx + n, sz.cy, color[i]);
for(int sc : { DPI_100, DPI_150, DPI_200, DPI_300 }) {
Size isz = GetSize(sc);
Image m1 = GetScaled(sc);
Image m2 = DarkTheme(m1);
for(int i = 0; i < n; i++) {
int x = i * cx;
if(image_scale == sc)
w.DrawRect(x + DPI(1), y, DPI(2), isz.cy, SLtBlue);
w.DrawImage(x + DPI(5), y, m1);
w.DrawImage(x + sz300.cx + DPI(10), y, m2);
}
y += isz.cy + DPI(5);
}
}
void sDrawChRect(Draw& w, int x0, int y, int cx, int cy, bool start = false)
{
w.DrawRect(x0, y, cx, cy, Color(255, 150, 200));
}
void IconDes::Paint(Draw& w)
{
Size sz = GetSize();
if(!IsCurrent()) {
w.DrawRect(sz, SColorPaper());
PaintBasicHintsTopic(this, w, "ide/app/ImlBeginnerInfo_en-us");
return;
}
const Image& image = Current().image;
const Image& selection = Current().selection;
Point spos = sb;
Size isz = image.GetSize();
bool pastepaint = HasCapture() && IsPasting();
magnify = max(magnify, 1);
if(magnify == 1) {
w.DrawRect(sz, SColorPaper());
ImageBuffer pb(isz);
RGBA c1 = GrayColor(102);
RGBA c2 = GrayColor(153);
int xn = isz.cx / DPI(4);
for(int y = 0; y < isz.cy; y++) {
RGBA *b = pb[y];
RGBA cc1 = c1;
RGBA cc2 = c2;
if(y & DPI(4))
Swap(cc1, cc2);
for(int q = xn; q--;) {
Fill(b, cc1, DPI(4));
Swap(cc1, cc2);
b += DPI(4);
}
while(b < pb[y] + isz.cx)
*b++ = cc1;
}
AlphaBlend(pb, image, (int)image.GetLength());
if(!pastepaint)
for(int y = 0; y < isz.cy; y++) {
const RGBA *m = selection[y];
RGBA *t = pb[y];
const RGBA *e = m + isz.cx;
while(m < e) {
if(!m->r)
t->r = t->g = t->b = ((t->r + t->g + t->b) >> 2);
m++;
t++;
}
}
w.DrawImage(-spos.x, -spos.y, pb);
Rect r = pb.GetSize();
r.Offset(-spos);
if(show_grid2) {
w.DrawRect(r.right, 0, 1, r.bottom + 1, LtRed());
w.DrawRect(0, r.bottom, r.right, 1, LtRed());
}
m1refresh = Null;
if(IsPasting())
DrawFrame(w, Rect(Current().pastepos - spos, Current().paste_image.GetSize()), LtRed);
return;
}
Rect src = Rect((sz + magnify) / magnify).Offseted(spos) & isz;
Size ssz = src.GetSize();
ImageBuffer b(src.GetSize() * magnify);
int m2 = magnify / 2;
CoFor(src.GetHeight(), [&](int y) { // create chequered background
RGBA *q = b[y * magnify];
int i = 0;
Color c1 = GrayColor(102);
Color c2 = GrayColor(153);
int m = magnify - m2;
for(int pass = 0; pass < 2; pass++) {
RGBA *t = q;
for(int i = 0; i < src.GetWidth(); i++) {
Fill(q, c1, magnify);
Fill(q + 1, c2, m2);
q += magnify;
}
i++;
while(i < m) {
memcpy_t(q, t, b.GetWidth());
q += b.GetWidth();
i++;
}
m = magnify;
Swap(c1, c2);
}
});
w.DrawImage(0, 0, b); // paint chequered background
w.DrawImage(0, 0, Magnify(image, src, magnify, magnify, true)); // paint actual image
if(!pastepaint && !IsNull(selection)) { // paint selection
RGBA c1 = 170 * Black();
RGBA c2 = 80 * LtGray();
int ncx = ssz.cx * magnify;
ImageBuffer b(ncx, ssz.cy * magnify);
CoFor(ssz.cy, [&](int y) {
const RGBA *s = selection[src.top + y] + src.left;
const RGBA *e = s + ssz.cx;
RGBA *t = ~b + y * ncx * magnify;
RGBA *q = t;
while(s < e) {
RGBA c = s->r ? RGBAZero() : c1;
Fill(q, c, magnify);
Fill(q + ncx, c, magnify);
if(!s->r)
for(int i = 0; i < magnify - 1; i += 2)
q[i] = c2;
q += magnify;
s++;
}
for(int i = 2; i < magnify; i++) {
q += ncx;
memcpy_t(q, t, ncx);
t += ncx;
}
});
w.DrawImage(0, 0, b);
}
if(magnify > 6) {
int grid2 = 0;
if(max(isz.cx, isz.cy) > 16 && show_grid2) {
if(isz.cx % 3 == 0 && isz.cy % 3 == 0)
grid2 = 3;
else
if(isz.cx % 4 == 0 && isz.cy % 4 == 0)
grid2 = 4;
}
auto GridColor = [&](int x, int sz) -> Color {
if(grid2) {
if(x == sz / 2)
return LtMagenta();
if(x % grid2 == 0)
return LtRed();
}
return Black();
};
int m = ssz.cx * magnify + 1;
for(int y = 0; y <= src.GetHeight(); y++)
w.DrawRect(0, magnify * y, m, 1, GridColor(y + src.top, isz.cy));
m = ssz.cy * magnify + 1;
for(int x = 0; x <= src.GetWidth(); x++)
w.DrawRect(magnify * x, 0, 1, m, GridColor(x + src.left, isz.cx));
}
if(IsPasting() && !pastepaint)
DrawFatFrame(w, Rect(magnify * (Current().pastepos - spos),
magnify * Current().paste_image.GetSize() + Size(1, 1)),
Color(200, 200, 255), 3);
if(magnify > 8 || IsHotSpot()) {
auto PaintHotSpot = [&](Point h, Color c, bool tl, bool br) {
if(h.x > 0 || h.y > 0 || tool == &IconDes::HotSpotTool) {
h = (h - spos) * magnify;
int d = magnify + 1;
int n = 1 + magnify / 8;
if(br) {
w.DrawRect(h.x + d - n, h.y + n, n, d - n, c);
w.DrawRect(h.x + n, h.y + d - n, d - 2 * n, n, c);
}
if(tl) {
w.DrawRect(h.x, h.y, d, n, c);
w.DrawRect(h.x, h.y + n, n, d - n, c);
}
}
};
bool ns = image.GetHotSpot() != image.Get2ndSpot();
PaintHotSpot(image.GetHotSpot(), LtRed(), true, ns);
PaintHotSpot(image.Get2ndSpot(), LtBlue(), ns, true);
}
PaintBasicHintsTopic(this, w, "ide/app/ImlBeginnerInfo_en-us");
}