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[wpigui] Add GetDistSquared and MaxFit functions

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These utility functions were moved from halsim_gui.
This commit is contained in:
Peter Johnson
2020-08-29 10:32:49 -07:00
parent c699d55175
commit b83709b269
5 changed files with 47 additions and 55 deletions
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15
simulation/halsim_gui/src/main/native/cpp/Field2D.cpp
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@@ -24,7 +24,6 @@
#include <wpi/raw_ostream.h>
#include <wpigui.h>
#include "GuiUtil.h"
#include "HALSimGui.h"
#include "SimDeviceGui.h"
#include "portable-file-dialogs.h"
@@ -310,7 +309,7 @@ FieldFrameData FieldInfo::GetFrameData() const {
// fit the image into the window
if (m_texture && m_imageHeight != 0 && m_imageWidth != 0)
MaxFit(&ffd.imageMin, &ffd.imageMax, m_imageWidth, m_imageHeight);
gui::MaxFit(&ffd.imageMin, &ffd.imageMax, m_imageWidth, m_imageHeight);
ImVec2 min = ffd.imageMin;
ImVec2 max = ffd.imageMax;
@@ -324,7 +323,7 @@ FieldFrameData FieldInfo::GetFrameData() const {
}
// draw the field "active area" as a yellow boundary box
MaxFit(&min, &max, m_width, m_height);
gui::MaxFit(&min, &max, m_width, m_height);
ffd.min = min;
ffd.max = max;
@@ -579,15 +578,15 @@ static void DisplayField2D() {
if (ImGui::IsItemHovered()) {
float hitRadiusSquared = hitRadius * hitRadius;
// it's within the hit radius of the center?
if (GetDistSquared(cursor, rfd.center) < hitRadiusSquared)
if (gui::GetDistSquared(cursor, rfd.center) < hitRadiusSquared)
hit = 1;
else if (GetDistSquared(cursor, rfd.corners[0]) < hitRadiusSquared)
else if (gui::GetDistSquared(cursor, rfd.corners[0]) < hitRadiusSquared)
hit = 2;
else if (GetDistSquared(cursor, rfd.corners[1]) < hitRadiusSquared)
else if (gui::GetDistSquared(cursor, rfd.corners[1]) < hitRadiusSquared)
hit = 3;
else if (GetDistSquared(cursor, rfd.corners[2]) < hitRadiusSquared)
else if (gui::GetDistSquared(cursor, rfd.corners[2]) < hitRadiusSquared)
hit = 4;
else if (GetDistSquared(cursor, rfd.corners[3]) < hitRadiusSquared)
else if (gui::GetDistSquared(cursor, rfd.corners[3]) < hitRadiusSquared)
hit = 5;
if (hit > 0 && ImGui::IsMouseClicked(0)) {
if (hit == 1) {

23
simulation/halsim_gui/src/main/native/cpp/GuiUtil.cpp
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@@ -1,23 +0,0 @@
/*----------------------------------------------------------------------------*/
/* Copyright (c) 2020 FIRST. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project. */
/*----------------------------------------------------------------------------*/
#include "GuiUtil.h"
void halsimgui::MaxFit(ImVec2* min, ImVec2* max, float width, float height) {
float destWidth = max->x - min->x;
float destHeight = max->y - min->y;
if (width == 0 || height == 0) return;
if (destWidth * height > destHeight * width) {
float outputWidth = width * destHeight / height;
min->x += (destWidth - outputWidth) / 2;
max->x -= (destWidth - outputWidth) / 2;
} else {
float outputHeight = height * destWidth / width;
min->y += (destHeight - outputHeight) / 2;
max->y -= (destHeight - outputHeight) / 2;
}
}