75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
// Copyright (c) Charles J. Cliffe
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// SPDX-License-Identifier: GPL-2.0+
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#include "ModeSelectorContext.h"
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#include "ModeSelectorCanvas.h"
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#include "ColorTheme.h"
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ModeSelectorContext::ModeSelectorContext(ModeSelectorCanvas *canvas, wxGLContext *sharedContext, wxGLContextAttrs *ctxAttrs) :
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PrimaryGLContext(canvas, sharedContext, ctxAttrs) {
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glDisable(GL_CULL_FACE);
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glDisable(GL_DEPTH_TEST);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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}
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void ModeSelectorContext::DrawBegin() {
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glClearColor(ThemeMgr::mgr.currentTheme->generalBackground.r, ThemeMgr::mgr.currentTheme->generalBackground.g, ThemeMgr::mgr.currentTheme->generalBackground.b,1.0);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glDisable(GL_TEXTURE_2D);
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}
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void ModeSelectorContext::DrawSelector(const std::string& label, int c, int cMax, bool on, float r, float g, float b, float a, float px, float py) {
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GLint vp[4];
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glGetIntegerv( GL_VIEWPORT, vp);
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float viewHeight = (float) vp[3];
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float viewWidth = (float) vp[2];
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int fontSize = 18;
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if (viewWidth < 30 || viewHeight < 200) {
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fontSize = 16;
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}
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glColor4f(r, g, b, a);
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float y = 1.0 - ((float) (c+1) / (float) cMax * 2.0);
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float height = (2.0 / (float) cMax);
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float padX = (px / viewWidth);
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float padY = (py / viewHeight);
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if (a < 1.0) {
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glEnable(GL_BLEND);
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}
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glBegin(on?GL_QUADS:GL_LINE_LOOP);
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glVertex2f(-1.0 + padX, y + padY);
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glVertex2f(1.0 - padX, y + padY);
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glVertex2f(1.0 - padX, y + height - padY);
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glVertex2f(-1.0 + padX, y + height - padY);
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glEnd();
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if (a < 1.0) {
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glDisable(GL_BLEND);
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}
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if (on) {
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glColor4f(0, 0, 0, a);
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}
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//Do not zoom the selectors
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GLFont::getFont(fontSize).drawString(label, 0.0, y + height / 2.0, GLFont::GLFONT_ALIGN_CENTER, GLFont::GLFONT_ALIGN_CENTER);
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}
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void ModeSelectorContext::DrawEnd() {
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// glFlush();
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// CheckGLError();
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}
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