From e33e19d0587146859d48a134ec9fd94e7b7ba5cd Mon Sep 17 00:00:00 2001 From: "FWoltermann@gmail.com" Date: Thu, 8 Dec 2011 14:53:40 +0000 Subject: Initial upload --- nGenEx/Window.cpp | 936 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 936 insertions(+) create mode 100644 nGenEx/Window.cpp (limited to 'nGenEx/Window.cpp') diff --git a/nGenEx/Window.cpp b/nGenEx/Window.cpp new file mode 100644 index 0000000..a69e00d --- /dev/null +++ b/nGenEx/Window.cpp @@ -0,0 +1,936 @@ +/* Project nGenEx + Destroyer Studios LLC + Copyright © 1997-2004. All Rights Reserved. + + SUBSYSTEM: nGenEx.lib + FILE: Window.cpp + AUTHOR: John DiCamillo + + + OVERVIEW + ======== + Window class +*/ + +#include "MemDebug.h" +#include "Window.h" +#include "Bitmap.h" +#include "Color.h" +#include "Fix.h" +#include "Font.h" +#include "Polygon.h" +#include "Screen.h" +#include "Video.h" +#include "View.h" + +static VertexSet vset4(4); + +// +--------------------------------------------------------------------+ + +Window::Window(Screen* s, int ax, int ay, int aw, int ah) + : screen(s), rect(ax, ay, aw, ah), shown(true), font(0) +{ } + +// +--------------------------------------------------------------------+ + +Window::~Window() +{ + view_list.destroy(); +} + +// +--------------------------------------------------------------------+ + +bool +Window::AddView(View* v) +{ + if (!v) return false; + + if (!view_list.contains(v)) + view_list.append(v); + + return true; +} + +bool +Window::DelView(View* v) +{ + if (!v) return false; + + return view_list.remove(v) == v; +} + +void +Window::MoveTo(const Rect& r) +{ + if (rect.x == r.x && + rect.y == r.y && + rect.w == r.w && + rect.h == r.h) + return; + + rect = r; + + ListIter v = view_list; + while (++v) + v->OnWindowMove(); +} + +// +--------------------------------------------------------------------+ + +void +Window::Paint() +{ + ListIter v = view_list; + while (++v) + v->Refresh(); +} + +// +--------------------------------------------------------------------+ + +static inline void swap(int& a, int& b) { int tmp=a; a=b; b=tmp; } +static inline void sort(int& a, int& b) { if (a>b) swap(a,b); } +static inline void swap(double& a, double& b) { double tmp=a; a=b; b=tmp; } +static inline void sort(double& a, double& b) { if (a>b) swap(a,b); } + +Rect +Window::ClipRect(const Rect& r) +{ + Rect clip_rect = r; + + clip_rect.x += rect.x; + clip_rect.y += rect.y; + + if (clip_rect.x < rect.x) { + clip_rect.w -= rect.x - clip_rect.x; + clip_rect.x = rect.x; + } + + if (clip_rect.y < rect.y) { + clip_rect.h -= rect.y - clip_rect.y; + clip_rect.y = rect.y; + } + + if (clip_rect.x + clip_rect.w > rect.x + rect.w) + clip_rect.w = rect.x + rect.w - clip_rect.x; + + if (clip_rect.y + clip_rect.h > rect.y + rect.h) + clip_rect.h = rect.y + rect.h - clip_rect.y; + + return clip_rect; +} + +// +--------------------------------------------------------------------+ + +bool +Window::ClipLine(int& x1, int& y1, int& x2, int& y2) +{ + // vertical lines: + if (x1==x2) { +clip_vertical: + sort(y1,y2); + if (x1 < 0 || x1 >= rect.w) return false; + if (y1 < 0) y1 = 0; + if (y2 >= rect.h) y2 = rect.h; + return true; + } + + // horizontal lines: + if (y1==y2) { +clip_horizontal: + sort(x1,x2); + if (y1 < 0 || y1 >= rect.h) return false; + if (x1 < 0) x1 = 0; + if (x2 > rect.w) x2 = rect.w; + return true; + } + + // general lines: + + // sort left to right: + if (x1 > x2) { + swap(x1,x2); + swap(y1,y2); + } + + double m = (double)(y2-y1) / (double)(x2-x1); + double b = (double) y1 - (m * x1); + + // clip: + if (x1 < 0) { x1 = 0; y1 = (int) b; } + if (x1 >= rect.w) return false; + if (x2 < 0) return false; + if (x2 > rect.w-1) { x2 = rect.w-1; y2 = (int) (m * x2 + b); } + + if (y1 < 0 && y2 < 0) return false; + if (y1 >= rect.h && y2 >= rect.h) return false; + + if (y1 < 0) { y1 = 0; x1 = (int) (-b/m); } + if (y1 >= rect.h) { y1 = rect.h-1; x1 = (int) ((y1-b)/m); } + if (y2 < 0) { y2 = 0; x2 = (int) (-b/m); } + if (y2 >= rect.h) { y2 = rect.h-1; x2 = (int) ((y2-b)/m); } + + if (x1 == x2) + goto clip_vertical; + + if (y1 == y2) + goto clip_horizontal; + + return true; +} + +// +--------------------------------------------------------------------+ + +bool +Window::ClipLine(double& x1, double& y1, double& x2, double& y2) +{ + // vertical lines: + if (x1==x2) { +clip_vertical: + sort(y1,y2); + if (x1 < 0 || x1 >= rect.w) return false; + if (y1 < 0) y1 = 0; + if (y2 >= rect.h) y2 = rect.h; + return true; + } + + // horizontal lines: + if (y1==y2) { +clip_horizontal: + sort(x1,x2); + if (y1 < 0 || y1 >= rect.h) return false; + if (x1 < 0) x1 = 0; + if (x2 > rect.w) x2 = rect.w; + return true; + } + + // general lines: + + // sort left to right: + if (x1 > x2) { + swap(x1,x2); + swap(y1,y2); + } + + double m = (double)(y2-y1) / (double)(x2-x1); + double b = (double) y1 - (m * x1); + + // clip: + if (x1 < 0) { x1 = 0; y1 = b; } + if (x1 >= rect.w) return false; + if (x2 < 0) return false; + if (x2 > rect.w-1) { x2 = rect.w-1; y2 = (m * x2 + b); } + + if (y1 < 0 && y2 < 0) return false; + if (y1 >= rect.h && y2 >= rect.h) return false; + + if (y1 < 0) { y1 = 0; x1 = (-b/m); } + if (y1 >= rect.h) { y1 = rect.h-1; x1 = ((y1-b)/m); } + if (y2 < 0) { y2 = 0; x2 = (-b/m); } + if (y2 >= rect.h) { y2 = rect.h-1; x2 = ((y2-b)/m); } + + if (x1 == x2) + goto clip_vertical; + + if (y1 == y2) + goto clip_horizontal; + + return true; +} + +// +--------------------------------------------------------------------+ + +void +Window::DrawLine(int x1, int y1, int x2, int y2, Color color, int blend) +{ + if (!screen || !screen->GetVideo()) return; + + if (ClipLine(x1,y1,x2,y2)) { + float points[4]; + + points[0] = (float) (rect.x + x1); + points[1] = (float) (rect.y + y1); + points[2] = (float) (rect.x + x2); + points[3] = (float) (rect.y + y2); + + Video* video = screen->GetVideo(); + video->DrawScreenLines(1, points, color, blend); + } +} + +// +--------------------------------------------------------------------+ + +void +Window::DrawRect(int x1, int y1, int x2, int y2, Color color, int blend) +{ + if (!screen || !screen->GetVideo()) return; + + sort(x1,x2); + sort(y1,y2); + + if (x1 > rect.w || x2 < 0 || y1 > rect.h || y2 < 0) + return; + + float points[16]; + + points[ 0] = (float) (rect.x + x1); + points[ 1] = (float) (rect.y + y1); + points[ 2] = (float) (rect.x + x2); + points[ 3] = (float) (rect.y + y1); + + points[ 4] = (float) (rect.x + x2); + points[ 5] = (float) (rect.y + y1); + points[ 6] = (float) (rect.x + x2); + points[ 7] = (float) (rect.y + y2); + + points[ 8] = (float) (rect.x + x2); + points[ 9] = (float) (rect.y + y2); + points[10] = (float) (rect.x + x1); + points[11] = (float) (rect.y + y2); + + points[12] = (float) (rect.x + x1); + points[13] = (float) (rect.y + y2); + points[14] = (float) (rect.x + x1); + points[15] = (float) (rect.y + y1); + + Video* video = screen->GetVideo(); + video->DrawScreenLines(4, points, color, blend); +} + +void +Window::DrawRect(const Rect& r, Color color, int blend) +{ + DrawRect(r.x, r.y, r.x+r.w, r.y+r.h, color, blend); +} + +// +--------------------------------------------------------------------+ + +void +Window::FillRect(int x1, int y1, int x2, int y2, Color color, int blend) +{ + if (!screen || !screen->GetVideo()) return; + + sort(x1,x2); + sort(y1,y2); + + if (x1 > rect.w || x2 < 0 || y1 > rect.h || y2 < 0) + return; + + vset4.space = VertexSet::SCREEN_SPACE; + for (int i = 0; i < 4; i++) { + vset4.diffuse[i] = color.Value(); + } + + vset4.s_loc[0].x = (float) (rect.x + x1) - 0.5f; + vset4.s_loc[0].y = (float) (rect.y + y1) - 0.5f; + vset4.s_loc[0].z = 0.0f; + vset4.rw[0] = 1.0f; + vset4.tu[0] = 0.0f; + vset4.tv[0] = 0.0f; + + vset4.s_loc[1].x = (float) (rect.x + x2) - 0.5f; + vset4.s_loc[1].y = (float) (rect.y + y1) - 0.5f; + vset4.s_loc[1].z = 0.0f; + vset4.rw[1] = 1.0f; + vset4.tu[1] = 1.0f; + vset4.tv[1] = 0.0f; + + vset4.s_loc[2].x = (float) (rect.x + x2) - 0.5f; + vset4.s_loc[2].y = (float) (rect.y + y2) - 0.5f; + vset4.s_loc[2].z = 0.0f; + vset4.rw[2] = 1.0f; + vset4.tu[2] = 1.0f; + vset4.tv[2] = 1.0f; + + vset4.s_loc[3].x = (float) (rect.x + x1) - 0.5f; + vset4.s_loc[3].y = (float) (rect.y + y2) - 0.5f; + vset4.s_loc[3].z = 0.0f; + vset4.rw[3] = 1.0f; + vset4.tu[3] = 0.0f; + vset4.tv[3] = 1.0f; + + Poly poly(0); + poly.nverts = 4; + poly.vertex_set = &vset4; + poly.verts[0] = 0; + poly.verts[1] = 1; + poly.verts[2] = 2; + poly.verts[3] = 3; + + Video* video = screen->GetVideo(); + video->DrawScreenPolys(1, &poly, blend); +} + +void +Window::FillRect(const Rect& r, Color color, int blend) +{ + FillRect(r.x, r.y, r.x+r.w, r.y+r.h, color, blend); +} + +// +--------------------------------------------------------------------+ + +void +Window::DrawLines(int nPts, POINT* pts, Color color, int blend) +{ + if (nPts < 2 || nPts > 16) + return; + + if (!screen || !screen->GetVideo()) + return; + + float f[64]; + int n = 0; + + for (int i = 0; i < nPts-1; i++) { + f[n++] = (float) rect.x + pts[i].x; + f[n++] = (float) rect.y + pts[i].y; + f[n++] = (float) rect.x + pts[i+1].x; + f[n++] = (float) rect.y + pts[i+1].y; + } + + Video* video = screen->GetVideo(); + video->DrawScreenLines(nPts-1, f, color, blend); +} + +void +Window::DrawPoly(int nPts, POINT* pts, Color color, int blend) +{ + if (nPts < 3 || nPts > 8) + return; + + if (!screen || !screen->GetVideo()) + return; + + float f[32]; + int n = 0; + + for (int i = 0; i < nPts-1; i++) { + f[n++] = (float) rect.x + pts[i].x; + f[n++] = (float) rect.y + pts[i].y; + f[n++] = (float) rect.x + pts[i+1].x; + f[n++] = (float) rect.y + pts[i+1].y; + } + + f[n++] = (float) rect.x + pts[nPts-1].x; + f[n++] = (float) rect.y + pts[nPts-1].y; + f[n++] = (float) rect.x + pts[0].x; + f[n++] = (float) rect.y + pts[0].y; + + Video* video = screen->GetVideo(); + video->DrawScreenLines(nPts, f, color, blend); +} + +void +Window::FillPoly(int nPts, POINT* pts, Color color, int blend) +{ + if (nPts < 3 || nPts > 4) + return; + + if (!screen || !screen->GetVideo()) + return; + + vset4.space = VertexSet::SCREEN_SPACE; + for (int i = 0; i < nPts; i++) { + vset4.diffuse[i] = color.Value(); + vset4.s_loc[i].x = (float) (rect.x + pts[i].x) - 0.5f; + vset4.s_loc[i].y = (float) (rect.y + pts[i].y) - 0.5f; + vset4.s_loc[i].z = 0.0f; + vset4.rw[i] = 1.0f; + vset4.tu[i] = 0.0f; + vset4.tv[i] = 0.0f; + } + + Poly poly(0); + poly.nverts = nPts; + poly.vertex_set = &vset4; + poly.verts[0] = 0; + poly.verts[1] = 1; + poly.verts[2] = 2; + poly.verts[3] = 3; + + Video* video = screen->GetVideo(); + video->DrawScreenPolys(1, &poly, blend); +} + +// +--------------------------------------------------------------------+ + +void +Window::DrawBitmap(int x1, int y1, int x2, int y2, Bitmap* img, int blend) +{ + Rect clip_rect; + clip_rect.w = rect.w; + clip_rect.h = rect.h; + + ClipBitmap(x1,y1,x2,y2,img,Color::White,blend,clip_rect); +} + +void +Window::FadeBitmap(int x1, int y1, int x2, int y2, Bitmap* img, Color c, int blend) +{ + Rect clip_rect; + clip_rect.w = rect.w; + clip_rect.h = rect.h; + + ClipBitmap(x1,y1,x2,y2,img,c,blend,clip_rect); +} + +void +Window::ClipBitmap(int x1, int y1, int x2, int y2, Bitmap* img, Color c, int blend, const Rect& clip_rect) +{ + if (!screen || !screen->GetVideo() || !img) return; + + Rect clip = clip_rect; + + // clip the clip rect to the window rect: + if (clip.x < 0) { + clip.w -= clip.x; + clip.x = 0; + } + + if (clip.x + clip.w > rect.w) { + clip.w -= (clip.x + clip.w - rect.w); + } + + if (clip.y < 0) { + clip.h -= clip.y; + clip.y = 0; + } + + if (clip.y + clip.h > rect.h) { + clip.h -= (clip.y + clip.h - rect.h); + } + + // now clip the bitmap to the validated clip rect: + sort(x1,x2); + sort(y1,y2); + + if (x1 > clip.x + clip.w || x2 < clip.x || y1 > clip.y + clip.h || y2 < clip.y) + return; + + vset4.space = VertexSet::SCREEN_SPACE; + for (int i = 0; i < 4; i++) { + vset4.diffuse[i] = c.Value(); + } + + float u1 = 0.0f; + float u2 = 1.0f; + float v1 = 0.0f; + float v2 = 1.0f; + float iw = (float) (x2-x1); + float ih = (float) (y2-y1); + int x3 = clip.x + clip.w; + int y3 = clip.y + clip.h; + + if (x1 < clip.x) { + u1 = (clip.x - x1) / iw; + x1 = clip.x; + } + + if (x2 > x3) { + u2 = 1.0f - (x2 - x3) / iw; + x2 = x3; + } + + if (y1 < clip.y) { + v1 = (clip.y - y1) / ih; + y1 = clip.y; + } + + if (y2 > y3) { + v2 = 1.0f - (y2 - y3) / ih; + y2 = y3; + } + + vset4.s_loc[0].x = (float) (rect.x + x1) - 0.5f; + vset4.s_loc[0].y = (float) (rect.y + y1) - 0.5f; + vset4.s_loc[0].z = 0.0f; + vset4.rw[0] = 1.0f; + vset4.tu[0] = u1; + vset4.tv[0] = v1; + + vset4.s_loc[1].x = (float) (rect.x + x2) - 0.5f; + vset4.s_loc[1].y = (float) (rect.y + y1) - 0.5f; + vset4.s_loc[1].z = 0.0f; + vset4.rw[1] = 1.0f; + vset4.tu[1] = u2; + vset4.tv[1] = v1; + + vset4.s_loc[2].x = (float) (rect.x + x2) - 0.5f; + vset4.s_loc[2].y = (float) (rect.y + y2) - 0.5f; + vset4.s_loc[2].z = 0.0f; + vset4.rw[2] = 1.0f; + vset4.tu[2] = u2; + vset4.tv[2] = v2; + + vset4.s_loc[3].x = (float) (rect.x + x1) - 0.5f; + vset4.s_loc[3].y = (float) (rect.y + y2) - 0.5f; + vset4.s_loc[3].z = 0.0f; + vset4.rw[3] = 1.0f; + vset4.tu[3] = u1; + vset4.tv[3] = v2; + + Material mtl; + mtl.tex_diffuse = img; + + Poly poly(0); + poly.nverts = 4; + poly.vertex_set = &vset4; + poly.material = &mtl; + poly.verts[0] = 0; + poly.verts[1] = 1; + poly.verts[2] = 2; + poly.verts[3] = 3; + + Video* video = screen->GetVideo(); + + video->SetRenderState(Video::TEXTURE_WRAP, 0); + video->DrawScreenPolys(1, &poly, blend); + video->SetRenderState(Video::TEXTURE_WRAP, 1); +} + +// +--------------------------------------------------------------------+ + +void +Window::TileBitmap(int x1, int y1, int x2, int y2, Bitmap* img, int blend) +{ + if (!screen || !screen->GetVideo()) return; + if (!img || !img->Width() || !img->Height()) return; + + vset4.space = VertexSet::SCREEN_SPACE; + for (int i = 0; i < 4; i++) { + vset4.diffuse[i] = Color::White.Value(); + } + + float xscale = (float) rect.w / (float) img->Width(); + float yscale = (float) rect.h / (float) img->Height(); + + vset4.s_loc[0].x = (float) (rect.x + x1) - 0.5f; + vset4.s_loc[0].y = (float) (rect.y + y1) - 0.5f; + vset4.s_loc[0].z = 0.0f; + vset4.rw[0] = 1.0f; + vset4.tu[0] = 0.0f; + vset4.tv[0] = 0.0f; + + vset4.s_loc[1].x = (float) (rect.x + x2) - 0.5f; + vset4.s_loc[1].y = (float) (rect.y + y1) - 0.5f; + vset4.s_loc[1].z = 0.0f; + vset4.rw[1] = 1.0f; + vset4.tu[1] = xscale; + vset4.tv[1] = 0.0f; + + vset4.s_loc[2].x = (float) (rect.x + x2) - 0.5f; + vset4.s_loc[2].y = (float) (rect.y + y2) - 0.5f; + vset4.s_loc[2].z = 0.0f; + vset4.rw[2] = 1.0f; + vset4.tu[2] = xscale; + vset4.tv[2] = yscale; + + vset4.s_loc[3].x = (float) (rect.x + x1) - 0.5f; + vset4.s_loc[3].y = (float) (rect.y + y2) - 0.5f; + vset4.s_loc[3].z = 0.0f; + vset4.rw[3] = 1.0f; + vset4.tu[3] = 0.0f; + vset4.tv[3] = yscale; + + Material mtl; + mtl.tex_diffuse = img; + + Poly poly(0); + poly.nverts = 4; + poly.vertex_set = &vset4; + poly.material = &mtl; + poly.verts[0] = 0; + poly.verts[1] = 1; + poly.verts[2] = 2; + poly.verts[3] = 3; + + Video* video = screen->GetVideo(); + video->DrawScreenPolys(1, &poly, blend); +} + +// +--------------------------------------------------------------------+ + +static float ellipse_pts[256]; + +void +Window::DrawEllipse(int x1, int y1, int x2, int y2, Color color, int blend) +{ + Video* video = screen->GetVideo(); + + if (!video) + return; + + sort(x1,x2); + sort(y1,y2); + + if (x1 > rect.w || x2 < 0 || y1 > rect.h || y2 < 0) + return; + + double w2 = (x2-x1)/2.0; + double h2 = (y2-y1)/2.0; + double cx = rect.x + x1 + w2; + double cy = rect.y + y1 + h2; + double r = w2; + int ns = 4; + int np = 0; + + if (h2 > r) + r = h2; + + if (r > 2*ns) + ns = (int) (r/2); + + if (ns > 64) + ns = 64; + + double theta = 0; + double dt = (PI/2) / ns; + + // quadrant 1 (lower right): + if (cx < (rect.x+rect.w) && cy < (rect.y + rect.h)) { + theta = 0; + np = 0; + + for (int i = 0; i < ns; i++) { + double ex1 = x1 + w2 + cos(theta) * w2; + double ey1 = y1 + h2 + sin(theta) * h2; + + theta += dt; + + double ex2 = x1 + w2 + cos(theta) * w2; + double ey2 = y1 + h2 + sin(theta) * h2; + + if (ClipLine(ex1, ey1, ex2, ey2)) { + ellipse_pts[np++] = (float) (rect.x + ex1); + ellipse_pts[np++] = (float) (rect.y + ey1); + ellipse_pts[np++] = (float) (rect.x + ex2); + ellipse_pts[np++] = (float) (rect.y + ey2); + } + } + + video->DrawScreenLines(np/4, ellipse_pts, color, blend); + } + + // quadrant 2 (lower left): + if (cx > rect.x && cy < (rect.y + rect.h)) { + theta = 90*DEGREES; + np = 0; + + for (int i = 0; i < ns; i++) { + double ex1 = x1 + w2 + cos(theta) * w2; + double ey1 = y1 + h2 + sin(theta) * h2; + + theta += dt; + + double ex2 = x1 + w2 + cos(theta) * w2; + double ey2 = y1 + h2 + sin(theta) * h2; + + if (ClipLine(ex1, ey1, ex2, ey2)) { + ellipse_pts[np++] = (float) (rect.x + ex1); + ellipse_pts[np++] = (float) (rect.y + ey1); + ellipse_pts[np++] = (float) (rect.x + ex2); + ellipse_pts[np++] = (float) (rect.y + ey2); + } + } + + video->DrawScreenLines(np/4, ellipse_pts, color, blend); + } + + // quadrant 3 (upper left): + if (cx > rect.x && cy > rect.y) { + theta = 180*DEGREES; + np = 0; + + for (int i = 0; i < ns; i++) { + double ex1 = x1 + w2 + cos(theta) * w2; + double ey1 = y1 + h2 + sin(theta) * h2; + + theta += dt; + + double ex2 = x1 + w2 + cos(theta) * w2; + double ey2 = y1 + h2 + sin(theta) * h2; + + if (ClipLine(ex1, ey1, ex2, ey2)) { + ellipse_pts[np++] = (float) (rect.x + ex1); + ellipse_pts[np++] = (float) (rect.y + ey1); + ellipse_pts[np++] = (float) (rect.x + ex2); + ellipse_pts[np++] = (float) (rect.y + ey2); + } + } + + video->DrawScreenLines(np/4, ellipse_pts, color, blend); + } + + // quadrant 4 (upper right): + if (cx < (rect.x+rect.w) && cy > rect.y) { + theta = 270*DEGREES; + np = 0; + + for (int i = 0; i < ns; i++) { + double ex1 = x1 + w2 + cos(theta) * w2; + double ey1 = y1 + h2 + sin(theta) * h2; + + theta += dt; + + double ex2 = x1 + w2 + cos(theta) * w2; + double ey2 = y1 + h2 + sin(theta) * h2; + + if (ClipLine(ex1, ey1, ex2, ey2)) { + ellipse_pts[np++] = (float) (rect.x + ex1); + ellipse_pts[np++] = (float) (rect.y + ey1); + ellipse_pts[np++] = (float) (rect.x + ex2); + ellipse_pts[np++] = (float) (rect.y + ey2); + } + } + + video->DrawScreenLines(np/4, ellipse_pts, color, blend); + } + +} + +void +Window::FillEllipse(int x1, int y1, int x2, int y2, Color color, int blend) +{ + Video* video = screen->GetVideo(); + + if (!video) + return; + + sort(x1,x2); + sort(y1,y2); + + if (x1 > rect.w || x2 < 0 || y1 > rect.h || y2 < 0) + return; + + double w2 = (x2-x1)/2.0; + double h2 = (y2-y1)/2.0; + double cx = x1 + w2; + double cy = y1 + h2; + double r = w2; + int ns = 4; + int np = 0; + + if (h2 > r) + r = h2; + + if (r > 2*ns) + ns = (int) (r/2); + + if (ns > 64) + ns = 64; + + double theta = -PI / 2; + double dt = PI / ns; + + for (int i = 0; i < ns; i++) { + double ex1 = cos(theta) * w2; + double ey1 = sin(theta) * h2; + + theta += dt; + + double ex2 = cos(theta) * w2; + double ey2 = sin(theta) * h2; + + POINT pts[4]; + + pts[0].x = (int) (cx - ex1); + pts[0].y = (int) (cy + ey1); + + pts[1].x = (int) (cx + ex1); + pts[1].y = (int) (cy + ey1); + + pts[2].x = (int) (cx + ex2); + pts[2].y = (int) (cy + ey2); + + pts[3].x = (int) (cx - ex2); + pts[3].y = (int) (cy + ey2); + + if (pts[0].x > rect.w && pts[3].x > rect.w) + continue; + + if (pts[1].x < 0 && pts[2].x < 0) + continue; + + if (pts[0].y > rect.h) + return; + + if (pts[2].y < 0) + continue; + + if (pts[0].x < 0) pts[0].x = 0; + if (pts[3].x < 0) pts[3].x = 0; + if (pts[1].x > rect.w) pts[1].x = rect.w; + if (pts[2].x > rect.w) pts[2].x = rect.w; + + if (pts[0].y < 0) pts[0].y = 0; + if (pts[1].y < 0) pts[1].y = 0; + if (pts[2].y > rect.h) pts[2].y = rect.h; + if (pts[3].y > rect.h) pts[3].y = rect.h; + + FillPoly(4, pts, color, blend); + } +} + +// +--------------------------------------------------------------------+ + +void +Window::Print(int x1, int y1, const char* fmt, ...) +{ + if (!font || x1<0 || y1<0 || x1>=rect.w || y1>=rect.h || !fmt) + return; + + x1 += rect.x; + y1 += rect.y; + + char msgbuf[512]; + vsprintf(msgbuf, fmt, (char *)(&fmt+1)); + font->DrawString(msgbuf, strlen(msgbuf), x1, y1, rect); +} + +void +Window::DrawText(const char* txt, int count, Rect& txt_rect, DWORD flags) +{ + if (!font) + return; + + if (txt && !count) + count = strlen(txt); + + // clip the rect: + Rect clip_rect = txt_rect; + + if (clip_rect.x < 0) { + int dx = -clip_rect.x; + clip_rect.x += dx; + clip_rect.w -= dx; + } + + if (clip_rect.y < 0) { + int dy = -clip_rect.y; + clip_rect.y += dy; + clip_rect.h -= dy; + } + + if (clip_rect.w < 1 || clip_rect.h < 1) + return; + + if (clip_rect.x + clip_rect.w > rect.w) + clip_rect.w = rect.w - clip_rect.x; + + if (clip_rect.y + clip_rect.h > rect.h) + clip_rect.h = rect.h - clip_rect.y; + + clip_rect.x += rect.x; + clip_rect.y += rect.y; + + if (font && txt && count) { + font->DrawText(txt, count, clip_rect, flags); + font->SetAlpha(1); + } + + // if calc only, update the rectangle: + if (flags & DT_CALCRECT) { + txt_rect.h = clip_rect.h; + txt_rect.w = clip_rect.w; + } +} + -- cgit v1.1