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Merged common/ui into common/graphics

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This commit is contained in:
Kayne Ruse
2015-08-14 18:02:39 +10:00
parent b10572ccaf
commit fedc420c19
8 changed files with 0 additions and 33 deletions
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common/graphics/button.cpp
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/* Copyright: (c) Kayne Ruse 2013-2015
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#include "button.hpp"
#include <stdexcept>
void Button::DrawTo(SDL_Renderer* renderer) {
image.SetClipY(image.GetClipH() * state);
image.DrawTo(renderer, posX, posY);
}
void Button::SetBackgroundTexture(SDL_Renderer* renderer, SDL_Texture* texture) {
//copy the given texture
image.Free();
//a null texture can simply free the image
if (!texture) {
return;
}
//get the w & h, & create
int w = 0, h = 0;
SDL_QueryTexture(texture, nullptr, nullptr, &w, &h);
image.Create(renderer, w, h);
//copy
SDL_SetRenderTarget(renderer, image.GetTexture());
SDL_RenderCopy(renderer, texture, nullptr, nullptr);
SDL_SetRenderTarget(renderer, nullptr);
//prune
image.SetClipH(image.GetClipH() / 3);
}
void Button::SetText(SDL_Renderer* renderer, TTF_Font* font, std::string s, SDL_Color color) {
//make the surface (from SDL_ttf)
SDL_Surface* surf = TTF_RenderText_Solid(font, s.c_str(), color);
if (!surf) {
throw(std::runtime_error("Failed to create a TTF surface"));
}
//convert to texture
SDL_Texture* text = SDL_CreateTextureFromSurface(renderer, surf);
SDL_FreeSurface(surf);
if (!text) {
throw(std::runtime_error("Failed to create a TTF texture"));
}
//get the dimensions & rects
int x, y, w, h;
SDL_QueryTexture(text, nullptr, nullptr, &w, &h);
x = (image.GetClipW() - w) / 2;
y = (image.GetClipH() - h) / 2;
SDL_Rect src = {0, 0, w, h};
SDL_Rect dst;
//draw the text to the background
SDL_SetRenderTarget(renderer, image.GetTexture());
for (int i = 0; i < 3; i++) {
dst = {x, y + image.GetClipH() * i, w, h};
SDL_RenderCopy(renderer, text, &src, &dst);
}
SDL_SetRenderTarget(renderer, nullptr);
//free the texture
SDL_DestroyTexture(text);
//DEBUG: testing
// image.SetClipH(image.GetClipH() * 3);
}
void Button::SetX(int x) {
posX = x;
}
void Button::SetY(int y) {
posY = y;
}
Button::State Button::MouseMotion(SDL_MouseMotionEvent const& event) {
//if out of bounds, exit
if (!CheckBounds(event.x, event.y)) {
return state = State::IDLE;
}
//if in bounds, check button
if (event.state & SDL_BUTTON_LMASK && state == State::PRESSED) {
//stay pressed
// state = State::PRESSED;
}
else {
state = State::HOVER;
}
return state;
}
Button::State Button::MouseButtonDown(SDL_MouseButtonEvent const& event) {
//if out of bounds, exit
if (!CheckBounds(event.x, event.y)) {
return state = State::IDLE;
}
//if in bounds, check button
if (event.button == SDL_BUTTON_LEFT) {
return state = State::PRESSED;
}
//NOTE: if not left button down, ignore
return State::HOVER;
}
Button::State Button::MouseButtonUp(SDL_MouseButtonEvent const& event) {
//if out of bounds, exit
if (!CheckBounds(event.x, event.y)) {
return state = State::IDLE;
}
//if not left button up, ignore
if (event.button != SDL_BUTTON_LEFT) {
return state;
}
//if in bounds and left button up, send release signal
if (state == State::PRESSED) {
state = State::HOVER;
return State::RELEASED;
}
return state;
}
void Button::SetState(State s) {
state = s;
}
Button::State Button::GetState() {
return state;
}
bool Button::CheckBounds(int x, int y) {
//return if true (x, y) is within bounds, otherwise return false
return !(
x < posX ||
y < posY ||
x > posX + image.GetClipW() ||
y > posY + image.GetClipH()
);
}
common/graphics/button.hpp
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/* Copyright: (c) Kayne Ruse 2013-2015
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#pragma once
#include "image.hpp"
#include "SDL2/SDL_ttf.h"
#include <string>
class Button {
public:
enum State {
IDLE = 0, HOVER = 1, PRESSED = 2, RELEASED = 3
};
//methods
Button() = default;
~Button() = default;
void DrawTo(SDL_Renderer*);
//setup
void SetBackgroundTexture(SDL_Renderer*, SDL_Texture*);
void SetText(SDL_Renderer*, TTF_Font*, std::string, SDL_Color);
void SetX(int x);
void SetY(int y);
//capture input
State MouseMotion(SDL_MouseMotionEvent const&);
State MouseButtonDown(SDL_MouseButtonEvent const&);
State MouseButtonUp(SDL_MouseButtonEvent const&);
//states
void SetState(State); //TODO: idle, busy or disabled
State GetState();
protected:
bool CheckBounds(int x, int y);
Image image;
int posX = 0, posY = 0;
State state = State::IDLE;
};
common/graphics/text_box.cpp
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/* Copyright: (c) Kayne Ruse 2013-2015
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#include "text_box.hpp"
#include <stdexcept>
TextBox::TextBox() {
//
}
TextBox::~TextBox() {
//
}
void TextBox::DrawTo(SDL_Renderer* renderer, int posX, int posY, int pointSize) {
for (std::list<TextLine>::iterator it = lineList.begin(); it != lineList.end(); it++) {
it->DrawTo(renderer, posX, posY);
posY -= pointSize;
}
}
void TextBox::PushLine(SDL_Renderer* renderer, TTF_Font* font, std::string str, SDL_Color color) {
lineList.emplace_front(renderer, font, str, color);
}
void TextBox::PopLine(int num) {
//prevent underflow
num < lineList.size() ? num : lineList.size();
for (int i = 0; i < num; ++i) {
lineList.pop_back();
}
}
void TextBox::ClearLines() {
lineList.clear();
}
common/graphics/text_box.hpp
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/* Copyright: (c) Kayne Ruse 2013-2015
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#pragma once
#include "text_line.hpp"
#include "SDL2/SDL.h"
#include "SDL2/SDL_ttf.h"
#include <string>
#include <list>
class TextBox {
public:
TextBox();
~TextBox();
void DrawTo(SDL_Renderer*, int posX, int posY, int pointSize);
void PushLine(SDL_Renderer*, TTF_Font*, std::string, SDL_Color color);
void PopLine(int num = 1);
void ClearLines();
private:
std::list<TextLine> lineList;
};
common/graphics/text_line.cpp
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/* Copyright: (c) Kayne Ruse 2013-2015
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#include "text_line.hpp"
#include <stdexcept>
SDL_Texture* renderTextTexture(SDL_Renderer* renderer, TTF_Font* font, std::string str, SDL_Color color) {
//make the surface (from SDL_ttf)
SDL_Surface* surface = TTF_RenderText_Solid(font, str.c_str(), color);
if (!surface) {
throw(std::runtime_error("Failed to create a TTF surface"));
}
//convert to texture
SDL_Texture* texture = SDL_CreateTextureFromSurface(renderer, surface);
//cleanup
SDL_FreeSurface(surface);
//check
if (!texture) {
throw(std::runtime_error("Failed to create a TTF texture"));
}
//NOTE: free the texture yourself
return texture;
}
TextLine::TextLine() {
//
}
TextLine::~TextLine() {
ClearText();
}
void TextLine::DrawTo(SDL_Renderer* renderer, int posX, int posY) {
SDL_Rect dclip = {posX, posY, 0, 0};
SDL_QueryTexture(texture, nullptr, nullptr, &dclip.w, &dclip.h);
SDL_RenderCopy(renderer, texture, nullptr, &dclip);
}
void TextLine::SetText(SDL_Renderer* renderer, TTF_Font* font, std::string str, SDL_Color color) {
//just use the above global function
SDL_DestroyTexture(texture);
texture = renderTextTexture(renderer, font, str, color);
}
void TextLine::ClearText() {
SDL_DestroyTexture(texture);
}
common/graphics/text_line.hpp
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/* Copyright: (c) Kayne Ruse 2013-2015
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source
* distribution.
*/
#pragma once
#include "SDL2/SDL.h"
#include "SDL2/SDL_ttf.h"
#include <string>
SDL_Texture* renderTextTexture(SDL_Renderer*, TTF_Font*, std::string, SDL_Color color);
class TextLine {
public:
TextLine();
TextLine(SDL_Renderer* r, TTF_Font* f, std::string s, SDL_Color c)
{ SetText(r, f, s, c); }
~TextLine();
void DrawTo(SDL_Renderer*, int posX, int posY);
void SetText(SDL_Renderer*, TTF_Font*, std::string, SDL_Color color);
void ClearText();
protected:
SDL_Texture* texture = nullptr;
};