aboutsummaryrefslogtreecommitdiff
path: root/src/glfw
diff options
context:
space:
mode:
authorAdrian Kummerlaender2018-12-17 19:31:38 +0100
committerAdrian Kummerlaender2018-12-17 19:31:38 +0100
commitf465b26a8aeac95cf7e0186a86ab1262dc771fb4 (patch)
tree8eb6e88a57b48fa1a6b3b0a3fca0e4e35f6b47e5 /src/glfw
parentede5386d53a453cb56c9b1c80de0a80322ddc6f1 (diff)
downloadcompustream-f465b26a8aeac95cf7e0186a86ab1262dc771fb4.tar
compustream-f465b26a8aeac95cf7e0186a86ab1262dc771fb4.tar.gz
compustream-f465b26a8aeac95cf7e0186a86ab1262dc771fb4.tar.bz2
compustream-f465b26a8aeac95cf7e0186a86ab1262dc771fb4.tar.lz
compustream-f465b26a8aeac95cf7e0186a86ab1262dc771fb4.tar.xz
compustream-f465b26a8aeac95cf7e0186a86ab1262dc771fb4.tar.zst
compustream-f465b26a8aeac95cf7e0186a86ab1262dc771fb4.zip
Keep track of window size in its wrapper class
Diffstat (limited to 'src/glfw')
-rw-r--r--src/glfw/window.cc10
-rw-r--r--src/glfw/window.h10
2 files changed, 18 insertions, 2 deletions
diff --git a/src/glfw/window.cc b/src/glfw/window.cc
index 0e57a65..9e76b57 100644
--- a/src/glfw/window.cc
+++ b/src/glfw/window.cc
@@ -1,5 +1,15 @@
#include "window.h"
+bool Window::updateSize() {
+ const int old_width = _width;
+ const int old_height = _height;
+
+ glfwGetWindowSize(_handle, &_width, &_height);
+
+ return old_width != _width
+ || old_height != _height;
+}
+
Window::Window(const std::string& title):
_handle(glfwCreateWindow(_width, _height, title.c_str(), NULL, NULL)) {
if ( _handle != nullptr ) {
diff --git a/src/glfw/window.h b/src/glfw/window.h
index 92a1b56..ea6075b 100644
--- a/src/glfw/window.h
+++ b/src/glfw/window.h
@@ -15,6 +15,8 @@ private:
GLFWwindow* const _handle;
+ bool updateSize();
+
public:
Window(const std::string& title);
~Window();
@@ -46,9 +48,13 @@ void Window::render(F loop) {
while ( glfwGetKey(_handle, GLFW_KEY_ESCAPE) != GLFW_PRESS &&
glfwWindowShouldClose(_handle) == 0 ) {
- glfwGetWindowSize(_handle, &_width, &_height);
+ const bool window_size_changed = updateSize();
+
+ if ( window_size_changed ) {
+ glViewport(0, 0, getWidth(), getHeight());
+ }
- loop();
+ loop(window_size_changed);
glfwSwapBuffers(_handle);
glfwPollEvents();